<!-- KC MODULAR BUILDINGS — ISO FRAME HERO SLIDER -->
<!-- SiteOrigin Custom HTML Widget | Version 1.0 | January 2026 -->
<style>
/* ===== ISO FRAME HERO SLIDER ===== */
.kc-iso-hero {
position: relative;
width: 100%;
height: 600px;
overflow: hidden;
background: #1e3a5f;
}
@media (max-width: 768px) {
.kc-iso-hero {
height: 550px;
}
}
/* ===== SLIDES CONTAINER ===== */
.kc-iso-hero-slides {
position: relative;
width: 100%;
height: 100%;
}
.kc-iso-hero-slide {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
opacity: 0;
transition: opacity 0.8s ease-in-out;
}
.kc-iso-hero-slide.active {
opacity: 1;
z-index: 2;
}
/* ===== SLIDE IMAGE ===== */
.kc-iso-hero-slide img {
width: 100%;
height: 100%;
object-fit: cover;
object-position: center right;
}
/* ===== GRADIENT OVERLAY ===== */
.kc-iso-hero-overlay {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: linear-gradient(90deg, rgba(30, 58, 95, 0.95) 0%, rgba(30, 58, 95, 0.85) 35%, rgba(30, 58, 95, 0.4) 60%, transparent 100%);
z-index: 3;
}
@media (max-width: 768px) {
.kc-iso-hero-overlay {
background: linear-gradient(180deg, rgba(30, 58, 95, 0.9) 0%, rgba(30, 58, 95, 0.7) 50%, rgba(30, 58, 95, 0.5) 100%);
}
}
/* ===== CONTENT CONTAINER ===== */
.kc-iso-hero-content {
position: absolute;
top: 50%;
left: 0;
transform: translateY(-50%);
width: 50%;
max-width: 600px;
padding: 0 24px 0 64px;
z-index: 5;
}
@media (max-width: 1024px) {
.kc-iso-hero-content {
width: 60%;
padding-left: 48px;
}
}
@media (max-width: 768px) {
.kc-iso-hero-content {
width: 100%;
max-width: 100%;
padding: 0 24px;
text-align: center;
}
}
/* ===== BADGE ===== */
.kc-iso-hero-badge {
display: inline-flex;
align-items: center;
gap: 8px;
background: rgba(249, 115, 22, 0.2);
border: 1px solid rgba(249, 115, 22, 0.4);
color: #fbbf24;
font-size: 12px;
font-weight: 700;
padding: 8px 16px;
border-radius: 6px;
margin-bottom: 20px;
text-transform: uppercase;
letter-spacing: 1.5px;
}
/* ===== H1 HEADLINE ===== */
.kc-iso-hero-content h1 {
font-size: 48px;
font-weight: 800;
color: #ffffff;
margin: 0 0 20px 0;
line-height: 1.15;
text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
@media (max-width: 1024px) {
.kc-iso-hero-content h1 {
font-size: 40px;
}
}
@media (max-width: 768px) {
.kc-iso-hero-content h1 {
font-size: 32px;
}
}
/* ===== SUBTITLE ===== */
.kc-iso-hero-subtitle {
font-size: 18px;
color: rgba(255, 255, 255, 0.9);
margin: 0 0 28px 0;
line-height: 1.7;
}
@media (max-width: 768px) {
.kc-iso-hero-subtitle {
font-size: 16px;
}
}
/* ===== USP TAGS ===== */
.kc-iso-hero-usps {
display: flex;
flex-wrap: wrap;
gap: 12px;
margin-bottom: 32px;
}
@media (max-width: 768px) {
.kc-iso-hero-usps {
justify-content: center;
}
}
.kc-iso-hero-usp {
display: inline-flex;
align-items: center;
gap: 6px;
background: rgba(255, 255, 255, 0.1);
border: 1px solid rgba(255, 255, 255, 0.2);
color: #ffffff;
font-size: 13px;
font-weight: 600;
padding: 8px 14px;
border-radius: 6px;
}
.kc-iso-hero-usp-icon {
font-size: 14px;
}
/* ===== CTA BUTTONS ===== */
.kc-iso-hero-ctas {
display: flex;
flex-wrap: wrap;
gap: 16px;
}
@media (max-width: 768px) {
.kc-iso-hero-ctas {
justify-content: center;
}
}
.kc-iso-hero-btn {
display: inline-flex;
align-items: center;
gap: 10px;
padding: 16px 28px;
font-size: 15px;
font-weight: 700;
text-decoration: none;
border-radius: 10px;
transition: all 0.3s ease;
}
.kc-iso-hero-btn-primary {
background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
color: #ffffff;
border: 2px solid #f97316;
box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}
.kc-iso-hero-btn-primary:hover {
background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
transform: translateY(-3px);
box-shadow: 0 10px 30px rgba(249, 115, 22, 0.5);
}
.kc-iso-hero-btn-secondary {
background: rgba(255, 255, 255, 0.1);
color: #ffffff;
border: 2px solid rgba(255, 255, 255, 0.3);
}
.kc-iso-hero-btn-secondary:hover {
background: rgba(255, 255, 255, 0.2);
border-color: rgba(255, 255, 255, 0.5);
}
/* ===== SLIDE INDICATORS ===== */
.kc-iso-hero-indicators {
position: absolute;
bottom: 32px;
left: 64px;
display: flex;
gap: 10px;
z-index: 10;
}
@media (max-width: 768px) {
.kc-iso-hero-indicators {
left: 50%;
transform: translateX(-50%);
}
}
.kc-iso-hero-indicator {
width: 12px;
height: 12px;
background: rgba(255, 255, 255, 0.3);
border: 2px solid rgba(255, 255, 255, 0.5);
border-radius: 50%;
cursor: pointer;
transition: all 0.3s ease;
}
.kc-iso-hero-indicator:hover {
background: rgba(255, 255, 255, 0.5);
}
.kc-iso-hero-indicator.active {
background: #f97316;
border-color: #f97316;
transform: scale(1.2);
}
/* ===== NAVIGATION ARROWS ===== */
.kc-iso-hero-nav {
position: absolute;
top: 50%;
transform: translateY(-50%);
width: 48px;
height: 48px;
background: rgba(255, 255, 255, 0.1);
border: 2px solid rgba(255, 255, 255, 0.3);
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
color: #ffffff;
font-size: 20px;
cursor: pointer;
transition: all 0.3s ease;
z-index: 10;
}
.kc-iso-hero-nav:hover {
background: rgba(249, 115, 22, 0.8);
border-color: #f97316;
}
.kc-iso-hero-nav-prev {
left: 24px;
}
.kc-iso-hero-nav-next {
right: 24px;
}
@media (max-width: 768px) {
.kc-iso-hero-nav {
display: none;
}
}
</style>
<!-- ISO FRAME HERO SLIDER HTML -->
<section class="kc-iso-hero" aria-labelledby="iso-hero-heading">
<!-- SLIDES -->
<div class="kc-iso-hero-slides">
<!-- SLIDE 1: Overview -->
<div class="kc-iso-hero-slide active" data-slide="1">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-building-hero.jpg"
alt="ISO frame modular building with steel frame construction and insulated cladding panels, positioned on concrete hardstanding in UK setting"
loading="eager">
</div>
<!-- SLIDE 2: Office -->
<div class="kc-iso-hero-slide" data-slide="2">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-office-business-park.jpg"
alt="ISO frame modular office building positioned in UK business park setting with tarmac parking area and professional corporate landscaping"
loading="lazy">
</div>
<!-- SLIDE 3: Welfare -->
<div class="kc-iso-hero-slide" data-slide="3">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-welfare-unit-construction-site.jpg"
alt="ISO frame modular welfare unit positioned on active UK construction site with safety fencing and crane visible in background"
loading="lazy">
</div>
<!-- SLIDE 4: Classroom -->
<div class="kc-iso-hero-slide" data-slide="4">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-classroom-school.jpg"
alt="ISO frame modular classroom building positioned on UK school campus with playing field in background and accessible pathway to entrance"
loading="lazy">
</div>
<!-- SLIDE 5: Medical -->
<div class="kc-iso-hero-slide" data-slide="5">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-medical-clinic-healthcare.jpg"
alt="ISO frame modular medical clinic building with accessible entrance pathway and disabled parking, positioned in UK healthcare setting"
loading="lazy">
</div>
<!-- SLIDE 6: Sales Suite -->
<div class="kc-iso-hero-slide" data-slide="6">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-sales-suite-car-dealership.jpg"
alt="ISO frame modular sales suite building positioned at UK car dealership forecourt with vehicles visible in background"
loading="lazy">
</div>
<!-- SLIDE 7: Two-Storey -->
<div class="kc-iso-hero-slide" data-slide="7">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-building-two-storey-stacked.jpg"
alt="Two-storey stacked ISO frame modular buildings with external steel staircase, demonstrating stackable modular construction capability"
loading="lazy">
</div>
<!-- SLIDE 8: Interior -->
<div class="kc-iso-hero-slide" data-slide="8">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-building-interior-office.jpg"
alt="Modern interior of ISO frame modular office building with LED panel lighting, vinyl flooring, large windows and open-plan workspace"
loading="lazy">
</div>
</div>
<!-- GRADIENT OVERLAY -->
<div class="kc-iso-hero-overlay"></div>
<!-- HERO CONTENT -->
<div class="kc-iso-hero-content">
<!-- BADGE -->
<div class="kc-iso-hero-badge">
<span>🏭</span>
<span>UK Manufactured • ISO Certified</span>
</div>
<!-- H1 HEADLINE -->
<h1 id="iso-hero-heading">ISO Frame Modular Buildings</h1>
<!-- SUBTITLE -->
<p class="kc-iso-hero-subtitle">
Steel-framed portable offices, welfare units, classrooms & sanitary containers. Factory-built to ISO standards, stackable up to 3 storeys, delivered UK-wide in 4–12 weeks.
</p>
<!-- USP TAGS -->
<div class="kc-iso-hero-usps">
<span class="kc-iso-hero-usp">
<span class="kc-iso-hero-usp-icon">✓</span>
<span>Stackable 3 Floors</span>
</span>
<span class="kc-iso-hero-usp">
<span class="kc-iso-hero-usp-icon">✓</span>
<span>4–12 Week Delivery</span>
</span>
<span class="kc-iso-hero-usp">
<span class="kc-iso-hero-usp-icon">✓</span>
<span>Part L & REI60 Options</span>
</span>
<span class="kc-iso-hero-usp">
<span class="kc-iso-hero-usp-icon">✓</span>
<span>Buy or Hire</span>
</span>
</div>
<!-- CTA BUTTONS -->
<div class="kc-iso-hero-ctas">
<a href="/contact/" class="kc-iso-hero-btn kc-iso-hero-btn-primary" aria-label="Request a free quote for ISO frame modular buildings">
<span>Request a Quote</span>
<span>→</span>
</a>
<a href="https://kcmodularbuildings.co.uk/wp-content/uploads/2024/09/ISO-frames-Catalog-cards.pdf"
class="kc-iso-hero-btn kc-iso-hero-btn-secondary"
download
aria-label="Download ISO frame product brochure PDF">
<span>📄</span>
<span>Download Brochure</span>
</a>
</div>
</div>
<!-- SLIDE INDICATORS -->
<div class="kc-iso-hero-indicators" role="tablist" aria-label="Hero slider navigation">
<button class="kc-iso-hero-indicator active" data-slide="1" role="tab" aria-selected="true" aria-label="Slide 1: ISO Frame Overview"></button>
<button class="kc-iso-hero-indicator" data-slide="2" role="tab" aria-selected="false" aria-label="Slide 2: Modular Office"></button>
<button class="kc-iso-hero-indicator" data-slide="3" role="tab" aria-selected="false" aria-label="Slide 3: Welfare Unit"></button>
<button class="kc-iso-hero-indicator" data-slide="4" role="tab" aria-selected="false" aria-label="Slide 4: Classroom"></button>
<button class="kc-iso-hero-indicator" data-slide="5" role="tab" aria-selected="false" aria-label="Slide 5: Medical Clinic"></button>
<button class="kc-iso-hero-indicator" data-slide="6" role="tab" aria-selected="false" aria-label="Slide 6: Sales Suite"></button>
<button class="kc-iso-hero-indicator" data-slide="7" role="tab" aria-selected="false" aria-label="Slide 7: Two-Storey Stacked"></button>
<button class="kc-iso-hero-indicator" data-slide="8" role="tab" aria-selected="false" aria-label="Slide 8: Interior"></button>
</div>
<!-- NAVIGATION ARROWS -->
<button class="kc-iso-hero-nav kc-iso-hero-nav-prev" aria-label="Previous slide">❮</button>
<button class="kc-iso-hero-nav kc-iso-hero-nav-next" aria-label="Next slide">❯</button>
</section>
<!-- HERO SLIDER JAVASCRIPT -->
<script>
(function() {
'use strict';
const slides = document.querySelectorAll('.kc-iso-hero-slide');
const indicators = document.querySelectorAll('.kc-iso-hero-indicator');
const prevBtn = document.querySelector('.kc-iso-hero-nav-prev');
const nextBtn = document.querySelector('.kc-iso-hero-nav-next');
let currentSlide = 1;
let autoplayInterval;
const totalSlides = slides.length;
const autoplayDelay = 6000;
function showSlide(n) {
if (n > totalSlides) currentSlide = 1;
if (n < 1) currentSlide = totalSlides;
slides.forEach(slide => {
slide.classList.remove('active');
});
indicators.forEach(indicator => {
indicator.classList.remove('active');
indicator.setAttribute('aria-selected', 'false');
});
slides[currentSlide - 1].classList.add('active');
indicators[currentSlide - 1].classList.add('active');
indicators[currentSlide - 1].setAttribute('aria-selected', 'true');
}
function nextSlide() {
currentSlide++;
showSlide(currentSlide);
}
function prevSlide() {
currentSlide--;
showSlide(currentSlide);
}
function startAutoplay() {
autoplayInterval = setInterval(nextSlide, autoplayDelay);
}
function stopAutoplay() {
clearInterval(autoplayInterval);
}
function resetAutoplay() {
stopAutoplay();
startAutoplay();
}
// Event Listeners
prevBtn.addEventListener('click', function() {
prevSlide();
resetAutoplay();
});
nextBtn.addEventListener('click', function() {
nextSlide();
resetAutoplay();
});
indicators.forEach(indicator => {
indicator.addEventListener('click', function() {
currentSlide = parseInt(this.getAttribute('data-slide'));
showSlide(currentSlide);
resetAutoplay();
});
});
// Pause on hover
const heroSection = document.querySelector('.kc-iso-hero');
heroSection.addEventListener('mouseenter', stopAutoplay);
heroSection.addEventListener('mouseleave', startAutoplay);
// Keyboard navigation
heroSection.addEventListener('keydown', function(e) {
if (e.key === 'ArrowLeft') {
prevSlide();
resetAutoplay();
} else if (e.key === 'ArrowRight') {
nextSlide();
resetAutoplay();
}
});
// Touch/swipe support
let touchStartX = 0;
let touchEndX = 0;
heroSection.addEventListener('touchstart', function(e) {
touchStartX = e.changedTouches[0].screenX;
}, { passive: true });
heroSection.addEventListener('touchend', function(e) {
touchEndX = e.changedTouches[0].screenX;
handleSwipe();
}, { passive: true });
function handleSwipe() {
const swipeThreshold = 50;
if (touchEndX < touchStartX - swipeThreshold) {
nextSlide();
resetAutoplay();
}
if (touchEndX > touchStartX + swipeThreshold) {
prevSlide();
resetAutoplay();
}
}
// Start autoplay
startAutoplay();
})();
</script>
<!-- SCHEMA MARKUP: ImageGallery + Product -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "ImageGallery",
"name": "ISO Frame Modular Buildings Gallery",
"description": "Steel-framed modular buildings manufactured in the UK. Portable offices, welfare units, classrooms, sanitary containers, and multi-storey configurations.",
"url": "https://kcmodularbuildings.co.uk/iso-frame-modular-buildings/",
"image": [
{
"@type": "ImageObject",
"url": "https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-building-hero.jpg",
"name": "ISO Frame Modular Building Hero",
"description": "ISO frame modular building with steel frame construction and insulated cladding panels"
},
{
"@type": "ImageObject",
"url": "https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-office-business-park.jpg",
"name": "ISO Frame Modular Office",
"description": "ISO frame modular office building in UK business park setting"
},
{
"@type": "ImageObject",
"url": "https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-welfare-unit-construction-site.jpg",
"name": "ISO Frame Welfare Unit",
"description": "ISO frame modular welfare unit on active UK construction site"
},
{
"@type": "ImageObject",
"url": "https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-classroom-school.jpg",
"name": "ISO Frame Modular Classroom",
"description": "ISO frame modular classroom building on UK school campus"
},
{
"@type": "ImageObject",
"url": "https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-medical-clinic-healthcare.jpg",
"name": "ISO Frame Medical Clinic",
"description": "ISO frame modular medical clinic in UK healthcare setting"
},
{
"@type": "ImageObject",
"url": "https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-sales-suite-car-dealership.jpg",
"name": "ISO Frame Sales Suite",
"description": "ISO frame modular sales suite at UK car dealership"
},
{
"@type": "ImageObject",
"url": "https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-building-two-storey-stacked.jpg",
"name": "Two-Storey Stacked ISO Frame",
"description": "Two-storey stacked ISO frame modular buildings with external staircase"
},
{
"@type": "ImageObject",
"url": "https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-building-interior-office.jpg",
"name": "ISO Frame Interior Office",
"description": "Modern interior of ISO frame modular office building"
}
],
"creator": {
"@type": "Organization",
"name": "KC Modular Buildings",
"url": "https://kcmodularbuildings.co.uk"
}
}
</script>
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "Product",
"name": "ISO Frame Modular Buildings",
"description": "Steel-framed modular buildings manufactured in the UK. Factory-built portable offices, welfare units, classrooms, sanitary containers, and sales suites. Stackable up to 3 storeys with 4-12 week delivery.",
"brand": {
"@type": "Brand",
"name": "KC Modular Buildings"
},
"manufacturer": {
"@type": "Organization",
"name": "KC Cabins Solutions Ltd",
"url": "https://kcmodularbuildings.co.uk"
},
"category": "Modular Buildings",
"image": "https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-building-hero.jpg",
"offers": {
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"priceCurrency": "GBP",
"lowPrice": "8750",
"highPrice": "150000",
"offerCount": "50+",
"availability": "https://schema.org/InStock",
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"value": "Up to 3 storeys"
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{
"@type": "PropertyValue",
"name": "Certifications",
"value": "ISO 9001, ISO 1090, ISO 3834, ISO 14001"
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{
"@type": "PropertyValue",
"name": "Fire Rating Options",
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{
"@type": "PropertyValue",
"name": "Energy Rating",
"value": "Part L 2021 A-Rated available"
}
]
}
</script>
<!-- END: ISO FRAME HERO SLIDER WIDGET -->
<!-- KC MODULAR BUILDINGS — ISO FRAME INTRODUCTION SECTION -->
<!-- SiteOrigin Custom HTML Widget | Version 1.1 | January 2026 -->
<style>
/* ===== ISO FRAME INTRODUCTION SECTION ===== */
.kc-iso-intro {
padding: 80px 24px;
background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}
@media (max-width: 768px) {
.kc-iso-intro {
padding: 56px 20px;
}
}
.kc-iso-intro-container {
max-width: 1200px;
margin: 0 auto;
}
/* ===== SECTION HEADER ===== */
.kc-iso-intro-header {
text-align: center;
max-width: 800px;
margin: 0 auto 56px auto;
}
.kc-iso-intro-badge {
display: inline-flex;
align-items: center;
gap: 8px;
background: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 100%);
color: #ffffff;
font-size: 12px;
font-weight: 700;
padding: 8px 16px;
border-radius: 6px;
margin-bottom: 20px;
text-transform: uppercase;
letter-spacing: 1.5px;
}
.kc-iso-intro-header h2 {
font-size: 40px;
font-weight: 800;
color: #1e3a5f;
margin: 0 0 20px 0;
line-height: 1.2;
}
@media (max-width: 768px) {
.kc-iso-intro-header h2 {
font-size: 32px;
}
}
.kc-iso-intro-header p {
font-size: 18px;
color: #475569;
line-height: 1.8;
margin: 0;
}
@media (max-width: 768px) {
.kc-iso-intro-header p {
font-size: 16px;
}
}
/* ===== DEFINITION BLOCK (AI Snippet Target) ===== */
.kc-iso-intro-definition {
background: #ffffff;
border: 1px solid #e2e8f0;
border-left: 4px solid #f97316;
border-radius: 12px;
padding: 32px;
margin-bottom: 56px;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}
.kc-iso-intro-definition h3 {
font-size: 22px;
font-weight: 700;
color: #1e3a5f;
margin: 0 0 16px 0;
display: flex;
align-items: center;
gap: 12px;
}
.kc-iso-intro-definition h3 span {
font-size: 24px;
}
.kc-iso-intro-definition p {
font-size: 16px;
color: #475569;
line-height: 1.8;
margin: 0;
}
/* ===== THREE SPEC TIERS ===== */
.kc-iso-intro-tiers {
display: flex;
flex-wrap: wrap;
gap: 24px;
margin-bottom: 56px;
}
.kc-iso-intro-tier {
flex: 1 1 300px;
max-width: 100%;
background: #ffffff;
border: 1px solid #e2e8f0;
border-radius: 16px;
padding: 32px;
position: relative;
overflow: hidden;
transition: all 0.3s ease;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}
.kc-iso-intro-tier:hover {
transform: translateY(-4px);
box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}
.kc-iso-intro-tier-standard {
border-top: 4px solid #3b82f6;
}
.kc-iso-intro-tier-fire {
border-top: 4px solid #ef4444;
}
.kc-iso-intro-tier-partl {
border-top: 4px solid #22c55e;
}
.kc-iso-intro-tier-icon {
width: 56px;
height: 56px;
border-radius: 12px;
display: flex;
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<header class="kc-iso-intro-header">
<div class="kc-iso-intro-badge">
<span>🏗️</span>
<span>Modular Building System</span>
</div>
<h2 id="iso-intro-heading">What is an ISO Frame Modular Building?</h2>
<p>
The ISO Frame series is a flexible modular system designed for rapid deployment, repeatable installation, and long lifespan. Factory-built with precision-engineered steel frames, these units are ideal for offices, welfare facilities, classrooms, storage, security cabins, and multi-storey configurations up to three levels.
</p>
</header>
<!-- AI-READY DEFINITION BLOCK -->
<div class="kc-iso-intro-definition" itemscope itemtype="https://schema.org/DefinedTerm">
<h3>
<span>📖</span>
<span itemprop="name">ISO Frame Modular Building Definition</span>
</h3>
<p itemprop="description">
An <strong>ISO frame modular building</strong> is a prefabricated steel-framed structure manufactured off-site to ISO quality standards. Built using cold-bent steel profiles with bolted construction (flat-pack capability), these units feature mineral wool insulated walls, floors, and roofs. They are CE marked to EN 1090-1, welded per EN ISO 3834-2, and blast-cleaned to Sa 2.5. ISO frame buildings can be stacked up to three storeys, transported by standard HGV, and installed in days rather than months.
</p>
</div>
<!-- THREE SPECIFICATION TIERS -->
<div class="kc-iso-intro-tiers">
<!-- STANDARD TIER -->
<article class="kc-iso-intro-tier kc-iso-intro-tier-standard">
<div class="kc-iso-intro-tier-icon">🏢</div>
<h3>Standard ISO Frame</h3>
<p class="kc-iso-intro-tier-subtitle">General Purpose</p>
<p>
Our core modular unit for offices, welfare, storage, and commercial use. Robust steel construction with 80mm mineral wool insulation.
</p>
<ul class="kc-iso-intro-tier-features">
<li><span>✓</span><span>80mm mineral wool walls</span></li>
<li><span>✓</span><span>100mm insulated roof & floor</span></li>
<li><span>✓</span><span>U-value 1.1 W/m²K windows</span></li>
<li><span>✓</span><span>2000 kg/m² floor load</span></li>
<li><span>✓</span><span>Stackable up to 3 floors</span></li>
<li><span>✓</span><span>Full UK electrical system</span></li>
</ul>
</article>
<!-- REI60 FIRE-RATED TIER -->
<article class="kc-iso-intro-tier kc-iso-intro-tier-fire">
<div class="kc-iso-intro-tier-icon">🔥</div>
<h3>REI60 Fire-Rated</h3>
<p class="kc-iso-intro-tier-subtitle">Enhanced Fire Protection</p>
<p>
Designed for schools, healthcare, public buildings, server rooms, and accommodation requiring 60-minute fire resistance.
</p>
<ul class="kc-iso-intro-tier-features">
<li><span>✓</span><span>REI 60 fire rating</span></li>
<li><span>✓</span><span>120mm Rockwool insulation</span></li>
<li><span>✓</span><span>Fire-resistant plasterboards</span></li>
<li><span>✓</span><span>Fire-rated frame construction</span></li>
<li><span>✓</span><span>Stackable up to 2 floors</span></li>
<li><span>✓</span><span>Ideal for grouped buildings</span></li>
</ul>
</article>
<!-- PART L A-RATED TIER -->
<article class="kc-iso-intro-tier kc-iso-intro-tier-partl">
<div class="kc-iso-intro-tier-icon">🌱</div>
<h3>Part L A-Rated</h3>
<p class="kc-iso-intro-tier-subtitle">Maximum Energy Efficiency</p>
<p>
Top-tier energy performance compliant with England Building Regulations Part L 2021 for non-domestic buildings.
</p>
<ul class="kc-iso-intro-tier-features">
<li><span>✓</span><span>A-Rated energy performance</span></li>
<li><span>✓</span><span>240mm mineral wool walls</span></li>
<li><span>✓</span><span>Dual 120mm PIR floor insulation</span></li>
<li><span>✓</span><span>U-value 0.5 W/m²K glazing</span></li>
<li><span>✓</span><span>4.5 SCOP air-air heat pump</span></li>
<li><span>✓</span><span>Lowest running costs</span></li>
</ul>
</article>
</div>
<!-- KEY BENEFITS — FLEXBOX LAYOUT -->
<div class="kc-iso-intro-benefits">
<div class="kc-iso-intro-benefit">
<div class="kc-iso-intro-benefit-icon">⚡</div>
<h4>Rapid Installation</h4>
<p>Factory-built and delivered ready to use. Install in days, not months.</p>
</div>
<div class="kc-iso-intro-benefit">
<div class="kc-iso-intro-benefit-icon">📦</div>
<h4>Flat-Pack Option</h4>
<p>Bolted construction allows flat-pack transport for remote or restricted sites.</p>
</div>
<div class="kc-iso-intro-benefit">
<div class="kc-iso-intro-benefit-icon">🏗️</div>
<h4>Stackable 3 Floors</h4>
<p>Maximise site footprint with multi-storey configurations up to three levels.</p>
</div>
<div class="kc-iso-intro-benefit">
<div class="kc-iso-intro-benefit-icon">🔄</div>
<h4>Fully Relocatable</h4>
<p>Move, reconfigure, or redeploy units as your business needs change.</p>
</div>
<div class="kc-iso-intro-benefit">
<div class="kc-iso-intro-benefit-icon">🛡️</div>
<h4>ISO Certified</h4>
<p>Manufactured under ISO 9001, 1090, 3834, 14001, and EN 1090-1 CE marking.</p>
</div>
<div class="kc-iso-intro-benefit">
<div class="kc-iso-intro-benefit-icon">💰</div>
<h4>Buy or Hire</h4>
<p>Flexible ownership options to suit project budgets and timelines.</p>
</div>
<div class="kc-iso-intro-benefit">
<div class="kc-iso-intro-benefit-icon">🚚</div>
<h4>4–12 Week Delivery</h4>
<p>Fast turnaround from order to installation, UK-wide delivery included.</p>
</div>
<div class="kc-iso-intro-benefit">
<div class="kc-iso-intro-benefit-icon">🔧</div>
<h4>Minimal Maintenance</h4>
<p>Factory finishes, coated steel, and durable interiors reduce upkeep costs.</p>
</div>
</div>
</div>
</section>
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<!-- PRODUCT RANGE SECTION HTML -->
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<div class="kc-iso-products-container">
<!-- SECTION HEADER -->
<header class="kc-iso-products-header">
<div class="kc-iso-products-badge">
<span>📦</span>
<span>Product Range</span>
</div>
<h2 id="iso-products-heading">ISO Frame Product Categories</h2>
<p>
From portable offices to modular classrooms, our ISO frame range covers every commercial, construction, and education requirement. Click to explore each category.
</p>
</header>
<!-- PRODUCT TILES -->
<div class="kc-iso-products-grid">
<!-- TILE 1: OFFICE UNITS -->
<a href="/iso-frame-systems/office-units/" class="kc-iso-products-tile" aria-label="View ISO Frame Office Units">
<div class="kc-iso-products-tile-img-wrap">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2022/10/Office-Units-Main-photo-scaled.jpg"
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<div class="kc-iso-products-tile-content">
<div class="kc-iso-products-tile-icon">🏢</div>
<h3>Office Units</h3>
<p>Portable offices, marketing suites, and site cabins. Single or double-storey configurations with modern interiors.</p>
<span class="kc-iso-products-tile-cta">
<span>View Office Units</span>
<span>→</span>
</span>
</div>
</a>
<!-- TILE 2: SANITARY UNITS -->
<a href="/iso-frame-systems/sanitary-units/" class="kc-iso-products-tile" aria-label="View ISO Frame Sanitary Units">
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<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2022/10/Sanitary-Units-main-photo-scaled.jpg"
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<div class="kc-iso-products-tile-overlay"></div>
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<div class="kc-iso-products-tile-content">
<div class="kc-iso-products-tile-icon">🚿</div>
<h3>Sanitary Units</h3>
<p>Toilet blocks, shower facilities, and combined welfare units. Fully plumbed with Geberit fittings and anti-mould finishes.</p>
<span class="kc-iso-products-tile-cta">
<span>View Sanitary Units</span>
<span>→</span>
</span>
</div>
</a>
<!-- TILE 3: BESPOKE UNITS -->
<a href="/iso-frame-systems/bespoke-units/" class="kc-iso-products-tile" aria-label="View ISO Frame Bespoke Units">
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<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2022/10/Bespoke-Units-main-photo-scaled.jpg"
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<div class="kc-iso-products-tile-overlay"></div>
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<div class="kc-iso-products-tile-content">
<div class="kc-iso-products-tile-icon">✨</div>
<h3>Bespoke Units</h3>
<p>Custom-designed modular buildings for unique requirements. Security cabins, gatehouse buildings, and specialist applications.</p>
<span class="kc-iso-products-tile-cta">
<span>View Bespoke Units</span>
<span>→</span>
</span>
</div>
</a>
<!-- TILE 4: MODULAR SCHOOLS -->
<a href="/iso-frame-systems/modular-schools/" class="kc-iso-products-tile" aria-label="View ISO Frame Modular Schools">
<div class="kc-iso-products-tile-img-wrap">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/iso-frame-modular-classroom-school.jpg"
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<div class="kc-iso-products-tile-overlay"></div>
</div>
<div class="kc-iso-products-tile-content">
<div class="kc-iso-products-tile-icon">🏫</div>
<h3>Modular Schools</h3>
<p>Classrooms, staff rooms, and education buildings. BB103 acoustic compliance, Part L energy efficiency, and DfE guidelines.</p>
<span class="kc-iso-products-tile-cta">
<span>View Modular Schools</span>
<span>→</span>
</span>
</div>
</a>
</div>
<!-- BOTTOM CTA -->
<div class="kc-iso-products-cta">
<a href="/contact/" class="kc-iso-products-btn" aria-label="Request a quote for ISO frame modular buildings">
<span>Request a Quote</span>
<span>→</span>
</a>
</div>
</div>
</section>
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"@type": "Offer",
"itemOffered": {
"@type": "Product",
"name": "ISO Frame Office Units",
"description": "Portable offices, marketing suites, and site cabins with modern interiors",
"category": "Modular Office Buildings"
},
"priceCurrency": "GBP",
"availability": "https://schema.org/InStock"
},
{
"@type": "Offer",
"itemOffered": {
"@type": "Product",
"name": "ISO Frame Sanitary Units",
"description": "Toilet blocks, shower facilities, and combined welfare units",
"category": "Modular Sanitary Buildings"
},
"priceCurrency": "GBP",
"availability": "https://schema.org/InStock"
},
{
"@type": "Offer",
"itemOffered": {
"@type": "Product",
"name": "ISO Frame Bespoke Units",
"description": "Custom-designed modular buildings for unique requirements",
"category": "Bespoke Modular Buildings"
},
"priceCurrency": "GBP",
"availability": "https://schema.org/InStock"
},
{
"@type": "Offer",
"itemOffered": {
"@type": "Product",
"name": "ISO Frame Modular Schools",
"description": "Classrooms, staff rooms, and education buildings with BB103 compliance",
"category": "Modular Education Buildings"
},
"priceCurrency": "GBP",
"availability": "https://schema.org/InStock"
}
]
}
</script>
<!-- END: ISO FRAME PRODUCT RANGE TILES WIDGET -->
<!-- KC MODULAR BUILDINGS — ISO FRAME TECHNICAL SPECIFICATIONS -->
<!-- SiteOrigin Custom HTML Widget | Version 1.0 | January 2026 -->
<style>
/* ===== ISO FRAME TECHNICAL SPECS SECTION ===== */
.kc-iso-specs {
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width: 20px;
height: 20px;
border-radius: 4px;
border: 1px solid #e2e8f0;
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/* ===== BOTTOM CTA ===== */
.kc-iso-specs-cta {
display: flex;
flex-wrap: wrap;
justify-content: center;
gap: 16px;
margin-top: 40px;
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color: #1e3a5f;
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border-color: #1e3a5f;
background: #f8fafc;
}
</style>
<!-- TECHNICAL SPECIFICATIONS SECTION HTML -->
<section class="kc-iso-specs" aria-labelledby="iso-specs-heading">
<div class="kc-iso-specs-container">
<!-- SECTION HEADER -->
<header class="kc-iso-specs-header">
<div class="kc-iso-specs-badge">
<span>📋</span>
<span>Technical Data</span>
</div>
<h2 id="iso-specs-heading">ISO Frame Technical Specifications</h2>
<p>
Detailed construction specifications for all three ISO frame tiers. Select a specification level to view full technical breakdown.
</p>
</header>
<!-- SPEC TABS -->
<div class="kc-iso-specs-tabs" role="tablist">
<button class="kc-iso-specs-tab active" data-tab="standard" role="tab" aria-selected="true" aria-controls="panel-standard">
<span class="kc-iso-specs-tab-icon">🏢</span>
<span>Standard</span>
</button>
<button class="kc-iso-specs-tab" data-tab="rei60" role="tab" aria-selected="false" aria-controls="panel-rei60">
<span class="kc-iso-specs-tab-icon">🔥</span>
<span>REI60 Fire-Rated</span>
</button>
<button class="kc-iso-specs-tab" data-tab="partl" role="tab" aria-selected="false" aria-controls="panel-partl">
<span class="kc-iso-specs-tab-icon">🌱</span>
<span>Part L A-Rated</span>
</button>
</div>
<!-- SPEC PANELS -->
<div class="kc-iso-specs-panels">
<!-- PANEL 1: STANDARD -->
<div class="kc-iso-specs-panel active" id="panel-standard" role="tabpanel">
<div class="kc-iso-specs-table-wrap">
<table class="kc-iso-specs-table">
<thead>
<tr>
<th>Component</th>
<th>Specification</th>
</tr>
</thead>
<tbody>
<!-- STRUCTURE -->
<tr class="kc-iso-specs-category">
<td colspan="2">🏗️ Structure</td>
</tr>
<tr>
<td>Frame Construction</td>
<td>Cold-bent steel profiles, bolted construction (flat-pack capable)</td>
</tr>
<tr>
<td>Welding Standard</td>
<td>EN ISO 3834-2 certified</td>
</tr>
<tr>
<td>CE Marking</td>
<td>EN 1090-1 compliant</td>
</tr>
<tr>
<td>Surface Preparation</td>
<td>Abrasive blast-cleaned to Sa 2.5 (EN ISO 8501-1)</td>
</tr>
<tr>
<td>Stackability</td>
<td>Up to 3 floors</td>
</tr>
<!-- ROOF -->
<tr class="kc-iso-specs-category">
<td colspan="2">🏠 Roof Construction</td>
</tr>
<tr>
<td>External Layer</td>
<td>0.5mm galvanized steel sheet</td>
</tr>
<tr>
<td>Substrate</td>
<td>10mm chipboard</td>
</tr>
<tr>
<td>Insulation</td>
<td>100mm mineral wool</td>
</tr>
<tr>
<td>Vapour Barrier</td>
<td>Polyethylene membrane</td>
</tr>
<tr>
<td>Internal Finish</td>
<td>8mm laminated board (white)</td>
</tr>
<tr>
<td>Drainage</td>
<td>Integrated via frame and downpipes</td>
</tr>
<tr>
<td>Snow Load Capacity</td>
<td>1.6 kN/m²</td>
</tr>
<!-- WALLS -->
<tr class="kc-iso-specs-category">
<td colspan="2">🧱 Wall Construction</td>
</tr>
<tr>
<td>External Cladding</td>
<td>0.5mm steel sheet, trapezoidal linear design</td>
</tr>
<tr>
<td>Insulation</td>
<td>80mm mineral wool core</td>
</tr>
<tr>
<td>Internal Finish</td>
<td>0.5mm smooth sheet, RAL 9010 (Pure White)</td>
</tr>
<!-- FLOOR -->
<tr class="kc-iso-specs-category">
<td colspan="2">🪵 Floor Construction</td>
</tr>
<tr>
<td>Deck</td>
<td>22mm P5 chipboard</td>
</tr>
<tr>
<td>Insulation</td>
<td>100mm mineral wool</td>
</tr>
<tr>
<td>Underside</td>
<td>0.5mm galvanized steel</td>
</tr>
<tr>
<td>Load Capacity</td>
<td>2000 kg/m²</td>
</tr>
<tr>
<td>Floor Finish</td>
<td>2mm commercial-grade PVC, grey, sealed joints</td>
</tr>
<!-- WINDOWS & DOORS -->
<tr class="kc-iso-specs-category">
<td colspan="2">🚪 Windows & Doors</td>
</tr>
<tr>
<td>Windows</td>
<td>PVC frame, RAL 7016 exterior / white interior, U-value 1.1 W/m²K</td>
</tr>
<tr>
<td>DDA Glazed Door</td>
<td>1150×2100mm, RAL 7016/white, insulated glazing, 3-key cylinder lock</td>
<td>1150×2100mm, fire-rated glazing, enhanced seals, automatic closer</td>
<td>1150×2100mm, U-value 0.5 W/m²K, thermal break frame</td>
</tr>
<tr>
<td>Steel Single Door</td>
<td>900×2000mm, thermally insulated, secure locking system</td>
<td>900×2000mm, fire-rated FD60, intumescent seals</td>
<td>900×2000mm, thermally insulated, enhanced weatherseals</td>
</tr>
<!-- ELECTRICAL -->
<tr>
<td>Electrical System</td>
<td>Full 230V UK standard, metal consumer unit, RCD protection</td>
<td>Full 230V UK standard, fire-rated cable containment</td>
<td>Full 230V UK standard, energy monitoring ready</td>
</tr>
<tr>
<td>Lighting</td>
<td>IP65 LED fittings (2×18W), UK sockets and switches</td>
<td>IP65 LED fittings, emergency lighting, illuminated exit signs</td>
<td>IP65 LED fittings, daylight sensors, dimming controls</td>
</tr>
<tr>
<td>Heating</td>
<td>Convector heaters (standard)</td>
<td>Convector heaters (standard)</td>
<td>4.5 SCOP air-air heat pump<br><span class="kc-iso-spec-highlight kc-iso-spec-energy">⚡ A-Rated efficiency</span></td>
</tr>
<!-- PERFORMANCE -->
<tr>
<td>Snow Load</td>
<td>1.6 kN/m²</td>
<td>1.6 kN/m²</td>
<td>1.6 kN/m²</td>
</tr>
<tr>
<td>Stackability</td>
<td>Up to 3 floors</td>
<td>Up to 2 floors</td>
<td>Up to 3 floors</td>
</tr>
<tr>
<td>Fire Rating</td>
<td>Standard (mineral wool core)</td>
<td>REI 60: Load-bearing 60 min, Integrity 60 min, Insulation 60 min<br><span class="kc-iso-spec-highlight kc-iso-spec-fire">🔥 60-minute protection</span></td>
<td>Standard (mineral wool core)</td>
</tr>
<tr>
<td>Energy Rating</td>
<td>Standard compliance</td>
<td>Standard compliance</td>
<td>Part L 2021 compliant<br><span class="kc-iso-spec-highlight kc-iso-spec-energy">⚡ A-Rated performance</span></td>
</tr>
<tr>
<td>Ideal Applications</td>
<td>Offices, welfare units, storage, site cabins, security</td>
<td>Schools, healthcare, public buildings, server rooms, accommodation</td>
<td>Long-term offices, classrooms, NHS sites, low-carbon projects</td>
</tr>
</tbody>
</table>
</div>
</div>
<!-- COLOUR OPTIONS -->
<div class="kc-iso-specs-colours">
<h3>🎨 Available RAL Colour Options</h3>
<p class="kc-iso-specs-colours-intro">Frame and wall panel finishes available in standard RAL colours. Custom colours available on request.</p>
<div class="kc-iso-specs-colours-grid">
<div class="kc-iso-specs-colour">
<div class="kc-iso-specs-colour-swatch" style="background:#a52019;"></div>
<span>RAL 3000</span>
<small>Flame Red</small>
</div>
<div class="kc-iso-specs-colour">
<div class="kc-iso-specs-colour-swatch" style="background:#0e518d;"></div>
<span>RAL 5010</span>
<small>Gentian Blue</small>
</div>
<div class="kc-iso-specs-colour">
<div class="kc-iso-specs-colour-swatch" style="background:#383e42;"></div>
<span>RAL 7016</span>
<small>Anthracite Grey</small>
</div>
<div class="kc-iso-specs-colour">
<div class="kc-iso-specs-colour-swatch" style="background:#d0d0d0;"></div>
<span>RAL 7035</span>
<small>Light Grey</small>
</div>
<div class="kc-iso-specs-colour">
<div class="kc-iso-specs-colour-swatch" style="background:#e7ebda;"></div>
<span>RAL 9002</span>
<small>Grey White</small>
</div>
<div class="kc-iso-specs-colour">
<div class="kc-iso-specs-colour-swatch" style="background:#ffffff;border:2px solid #cbd5e1;"></div>
<span>RAL 9010</span>
<small>Pure White</small>
</div>
</div>
</div>
<!-- CERTIFICATIONS -->
<div class="kc-iso-specs-certs">
<h3>🏆 Manufacturing & Quality Certifications</h3>
<p class="kc-iso-specs-certs-intro">All ISO frame units manufactured under strict certified quality systems for guaranteed consistency, safety, and traceability.</p>
<div class="kc-iso-specs-certs-grid">
<div class="kc-iso-specs-cert">
<span class="kc-iso-specs-cert-icon">✓</span>
<div>
<strong>ISO 9001</strong>
<span>Quality Management</span>
</div>
</div>
<div class="kc-iso-specs-cert">
<span class="kc-iso-specs-cert-icon">✓</span>
<div>
<strong>ISO 1090</strong>
<span>Structural Steel CE</span>
</div>
</div>
<div class="kc-iso-specs-cert">
<span class="kc-iso-specs-cert-icon">✓</span>
<div>
<strong>ISO 3834</strong>
<span>Welding Quality</span>
</div>
</div>
<div class="kc-iso-specs-cert">
<span class="kc-iso-specs-cert-icon">✓</span>
<div>
<strong>ISO 14001</strong>
<span>Environmental</span>
</div>
</div>
<div class="kc-iso-specs-cert">
<span class="kc-iso-specs-cert-icon">✓</span>
<div>
<strong>ISO 27001</strong>
<span>Information Security</span>
</div>
</div>
<div class="kc-iso-specs-cert">
<span class="kc-iso-specs-cert-icon">✓</span>
<div>
<strong>ISO 22301</strong>
<span>Business Continuity</span>
</div>
</div>
<div class="kc-iso-specs-cert">
<span class="kc-iso-specs-cert-icon">✓</span>
<div>
<strong>EN ISO 8501</strong>
<span>Surface Preparation</span>
</div>
</div>
<div class="kc-iso-specs-cert">
<span class="kc-iso-specs-cert-icon">✓</span>
<div>
<strong>EN 1090-1</strong>
<span>CE Marking</span>
</div>
</div>
</div>
</div>
<!-- BOTTOM CTA -->
<div class="kc-iso-specs-cta">
<a href="/contact/" class="kc-iso-specs-btn kc-iso-specs-btn-primary" aria-label="Request full technical specification PDF">
<span>📄</span>
<span>Request Full Spec Sheet</span>
<span>→</span>
</a>
<a href="https://kcmodularbuildings.co.uk/wp-content/uploads/2024/09/ISO-frames-Catalog-cards.pdf" class="kc-iso-specs-btn kc-iso-specs-btn-secondary" download aria-label="Download ISO frame brochure PDF">
<span>⬇️</span>
<span>Download Brochure</span>
</a>
</div>
</div>
</div>
</section>
<!-- ADDITIONAL CSS -->
<style>
/* ===== COLOURS SECTION ===== */
.kc-iso-specs-colours {
background:#fff;
border:1px solid #e2e8f0;
border-radius:16px;
padding:32px;
margin-bottom:32px;
text-align:center;
}
.kc-iso-specs-colours h3 {
font-size:22px;
font-weight:700;
color:#1e3a5f;
margin:0 0 8px;
}
.kc-iso-specs-colours-intro {
font-size:15px;
color:#64748b;
margin:0 0 24px;
}
.kc-iso-specs-colours-grid {
display:flex;
flex-wrap:wrap;
gap:20px;
justify-content:center;
}
.kc-iso-specs-colour {
display:flex;
flex-direction:column;
align-items:center;
gap:6px;
}
.kc-iso-specs-colour-swatch {
width:56px;
height:56px;
border-radius:12px;
border:2px solid #e2e8f0;
box-shadow:0 4px 12px rgba(0,0,0,0.1);
}
.kc-iso-specs-colour span {
font-size:13px;
font-weight:700;
color:#1e3a5f;
}
.kc-iso-specs-colour small {
font-size:11px;
color:#64748b;
}
/* ===== CERTIFICATIONS SECTION ===== */
.kc-iso-specs-certs {
background:#fff;
border:1px solid #e2e8f0;
border-radius:16px;
padding:32px;
margin-bottom:40px;
text-align:center;
}
.kc-iso-specs-certs h3 {
font-size:22px;
font-weight:700;
color:#1e3a5f;
margin:0 0 8px;
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.kc-iso-specs-certs-intro {
font-size:15px;
color:#64748b;
margin:0 0 24px;
}
.kc-iso-specs-certs-grid {
display:flex;
flex-wrap:wrap;
gap:16px;
justify-content:center;
}
.kc-iso-specs-cert {
display:flex;
align-items:center;
gap:12px;
background:#f8fafc;
border:1px solid #e2e8f0;
border-radius:10px;
padding:14px 18px;
min-width:180px;
flex:1 1 calc(25% - 12px);
max-width:240px;
text-align:left;
}
@media(max-width:900px){
.kc-iso-specs-cert{flex:1 1 calc(50% - 8px);}
}
@media(max-width:500px){
.kc-iso-specs-cert{flex:1 1 100%;max-width:100%;}
}
.kc-iso-specs-cert-icon {
width:36px;
height:36px;
background:linear-gradient(135deg,#22c55e,#16a34a);
color:#fff;
font-size:18px;
font-weight:700;
border-radius:10px;
display:flex;
align-items:center;
justify-content:center;
flex-shrink:0;
}
.kc-iso-specs-cert div {
display:flex;
flex-direction:column;
}
.kc-iso-specs-cert strong {
font-size:14px;
font-weight:700;
color:#1e3a5f;
}
.kc-iso-specs-cert span {
font-size:12px;
color:#64748b;
}
/* ===== CTA BUTTONS ===== */
.kc-iso-specs-cta {
display:flex;
flex-wrap:wrap;
justify-content:center;
gap:16px;
}
.kc-iso-specs-btn {
display:inline-flex;
align-items:center;
gap:10px;
padding:16px 28px;
font-size:15px;
font-weight:700;
text-decoration:none;
border-radius:10px;
transition:all 0.3s ease;
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.kc-iso-specs-btn-primary {
background:linear-gradient(135deg,#f97316,#ea580c);
color:#fff;
box-shadow:0 6px 20px rgba(249,115,22,0.4);
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.kc-iso-specs-btn-primary:hover {
transform:translateY(-3px);
box-shadow:0 10px 30px rgba(249,115,22,0.5);
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<span>✨</span>
<span>Key Advantages</span>
</div>
<h2 id="iso-why-heading">Why Choose ISO Frame Modular Buildings?</h2>
<p>
Engineered for speed, durability, and flexibility. ISO frame buildings deliver measurable benefits over traditional construction methods.
</p>
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<!-- USP GRID -->
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<!-- USP 1: RAPID INSTALLATION -->
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<div class="kc-iso-why-icon">⚡</div>
<h3>Rapid Installation & Redeployment</h3>
<p>100% modular, transportable, and stackable. Factory-built units arrive ready to install in days, not months.</p>
<ul class="kc-iso-why-features">
<li><span>✓</span><span>4–12 week delivery from order</span></li>
<li><span>✓</span><span>Minimal site disruption</span></li>
<li><span>✓</span><span>Relocate units as needs change</span></li>
</ul>
</article>
<!-- USP 2: LOW RUNNING COSTS -->
<article class="kc-iso-why-card">
<div class="kc-iso-why-icon">💰</div>
<h3>Low Running Costs</h3>
<p>High-insulation build-ups and energy-efficient systems dramatically reduce heating bills and operational expenses.</p>
<ul class="kc-iso-why-features">
<li><span>✓</span><span>Part L A-Rated option available</span></li>
<li><span>✓</span><span>4.5 SCOP heat pump efficiency</span></li>
<li><span>✓</span><span>Up to 60% lower energy costs</span></li>
</ul>
</article>
<!-- USP 3: FLEXIBLE GROWTH -->
<article class="kc-iso-why-card">
<div class="kc-iso-why-icon">📈</div>
<h3>Flexible to Grow With Your Needs</h3>
<p>Units can be added, extended, reconfigured, or relocated easily as your business or project requirements evolve.</p>
<ul class="kc-iso-why-features">
<li><span>✓</span><span>Stackable up to 3 storeys</span></li>
<li><span>✓</span><span>Link multiple units together</span></li>
<li><span>✓</span><span>Flat-pack for restricted sites</span></li>
</ul>
</article>
<!-- USP 4: STRUCTURAL INTEGRITY -->
<article class="kc-iso-why-card">
<div class="kc-iso-why-icon">🏗️</div>
<h3>High Structural Integrity</h3>
<p>Precision-engineered steel frames ensure long lifespan, stability, and safety for temporary or permanent installations.</p>
<ul class="kc-iso-why-features">
<li><span>✓</span><span>CE marked EN 1090-1</span></li>
<li><span>✓</span><span>2000 kg/m² floor load capacity</span></li>
<li><span>✓</span><span>1.6 kN/m² snow load rating</span></li>
</ul>
</article>
<!-- USP 5: FIRE & ENERGY COMPLIANCE -->
<article class="kc-iso-why-card">
<div class="kc-iso-why-icon">🔥</div>
<h3>Fire & Energy Compliance Options</h3>
<p>Choose Standard, REI60 fire-rated, or Part L A-Rated specification depending on your project requirements.</p>
<ul class="kc-iso-why-features">
<li><span>✓</span><span>REI 60 fire protection</span></li>
<li><span>✓</span><span>Part L 2021 compliant</span></li>
<li><span>✓</span><span>Suitable for schools & healthcare</span></li>
</ul>
</article>
<!-- USP 6: MINIMAL MAINTENANCE -->
<article class="kc-iso-why-card">
<div class="kc-iso-why-icon">🔧</div>
<h3>Minimal Maintenance</h3>
<p>Factory finishes, coated steel, and durable interiors reduce upkeep costs and extend building lifespan.</p>
<ul class="kc-iso-why-features">
<li><span>✓</span><span>UV-resistant RAL coatings</span></li>
<li><span>✓</span><span>Wipe-clean internal surfaces</span></li>
<li><span>✓</span><span>Sealed PVC flooring</span></li>
</ul>
</article>
</div>
<!-- STATS BAR -->
<div class="kc-iso-why-stats">
<div class="kc-iso-why-stat">
<div class="kc-iso-why-stat-value">4–12</div>
<div class="kc-iso-why-stat-label">Week Delivery</div>
</div>
<div class="kc-iso-why-stat">
<div class="kc-iso-why-stat-value">3</div>
<div class="kc-iso-why-stat-label">Storey Stackable</div>
</div>
<div class="kc-iso-why-stat">
<div class="kc-iso-why-stat-value">60</div>
<div class="kc-iso-why-stat-label">Min Fire Rating</div>
</div>
<div class="kc-iso-why-stat">
<div class="kc-iso-why-stat-value">2000</div>
<div class="kc-iso-why-stat-label">kg/m² Floor Load</div>
</div>
<div class="kc-iso-why-stat">
<div class="kc-iso-why-stat-value">8+</div>
<div class="kc-iso-why-stat-label">ISO Certifications</div>
</div>
</div>
<!-- CTA -->
<div class="kc-iso-why-cta">
<a href="/contact/" class="kc-iso-why-btn" aria-label="Request a quote for ISO frame modular buildings">
<span>Get Your Free Quote</span>
<span>→</span>
</a>
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</div>
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<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/flagship-modular-office-building-steel-frame-system-1920x1080px-primary-slider.jpg" alt="Flagship modular office building with steel frame system demonstrating permanent planning-compliant construction" loading="lazy">
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<span class="kc-bh-badge">Planning Guidance • Schools & Public Sector</span>
<h1>Modular Buildings Are Often Assumed to Be Temporary — But Planning May Treat Them as Permanent Development</h1>
<p>In practice, "temporary vs permanent" is usually assessed through intended use and site integration — not how the building is manufactured.</p>
<div class="kc-bh-note">
<p>Planning outcomes depend on site conditions and local authority interpretation, and no single building approach guarantees approval.</p>
</div>
<div class="kc-bh-cta">
<a class="kc-bh-btn kc-bh-btn-p" href="/contact/">💬 Request Guidance</a>
<a class="kc-bh-btn kc-bh-btn-s" href="tel:07443564451">📞 07443 564 451</a>
<a class="kc-bh-btn kc-bh-btn-t" href="/iso-frame-systems/modular-schools/">📄 Modular Schools Guide</a>
</div>
</div>
</div>
</div>
</div>
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<section class="kc-bs" aria-label="Planning support block">
<div class="kc-bs-container">
<div class="kc-bs-grid">
<div class="kc-bs-media">
<img src="https://kcmodularbuildings.co.uk/wp-content/uploads/2026/01/flagship-modular-office-building-steel-frame-system-1920×1080px-primary-slider.jpg" alt="Flagship modular office building with steel frame system demonstrating permanent planning-compliant construction" loading="lazy">
<div class="kc-bs-caption">Example image used to illustrate the topic. Final planning assessment depends on site context and supporting documentation.</div>
</div>
<div class="kc-bs-content">
<span class="kc-bs-badge">Key Takeaway</span>
<h2>"Temporary vs Permanent" Is Usually Judged by Use and Site Integration — Not Construction Method</h2>
<p>Modular buildings are often assumed to be temporary by default. In planning, that assumption can be risky. Many modular projects are assessed as permanent development depending on intended duration, connections to services, fixing methods, and how the proposal sits within the site.</p>
<ul class="kc-bs-points">
<li><span class="kc-bs-dot">✓</span><div><strong>Intended use & duration</strong> is often the starting point for how a proposal is assessed.</div></li>
<li><span class="kc-bs-dot">✓</span><div><strong>Site integration</strong> (access routes, layout, neighbours, outdoor areas) typically matters more than manufacturing method.</div></li>
<li><span class="kc-bs-dot">✓</span><div><strong>Clarity in supporting information</strong> helps reduce follow-up questions and improves decision confidence.</div></li>
</ul>
<div class="kc-bs-note">
<p>Planning outcomes depend on site conditions and local authority interpretation, and no single building approach guarantees approval.</p>
</div>
<div class="kc-bs-links">
<a class="kc-bs-link" href="/iso-frame-systems/modular-schools/">
<span class="kc-bs-link-icon">🏫</span>
<div>
<p class="kc-bs-link-title">Modular Schools Guidance</p>
<p class="kc-bs-link-desc">Education-focused context for modular school projects</p>
</div>
</a>
<a class="kc-bs-link" href="/iso-frame-systems/modular-schools/">
<span class="kc-bs-link-icon">🏫</span>
<div>
<p class="kc-bs-link-title">Modular Schools Guidance</p>
<p class="kc-bs-link-desc">Education-focused context for modular school projects</p>
</div>
</a>
<a class="kc-bs-link" href="/contact/">
<span class="kc-bs-link-icon">📩</span>
<div>
<p class="kc-bs-link-title">Contact KC for Guidance</p>
<p class="kc-bs-link-desc">Share your site constraints and we'll help you frame the right information</p>
</div>
</a>
<a class="kc-bs-link" href="https://www.planningportal.co.uk/" target="_blank" rel="noopener noreferrer">
<span class="kc-bs-link-icon">🌐</span>
<div>
<p class="kc-bs-link-title">Planning Portal (Official Guidance)</p>
<p class="kc-bs-link-desc">Reference information for planning applications (external)</p>
</div>
</a>
</div>
</div>
</div>
</div>
</section>
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<section class="kc-sectors" aria-labelledby="sectors-heading">
<div class="kc-sectors-container">
<!-- HEADER -->
<header class="kc-sectors-header">
<span class="kc-sectors-badge">🏢 Industries We Serve</span>
<h2 id="sectors-heading">ISO Frame Buildings for Every Sector</h2>
<p>From construction sites to classrooms, our modular buildings deliver fast, compliant, and cost-effective space solutions across the UK.</p>
</header>
<!-- SECTOR GRID -->
<div class="kc-sectors-grid">
<!-- EDUCATION -->
<article class="kc-sector-card">
<div class="kc-sector-icon">🏫</div>
<h3>Education</h3>
<p>Modular classrooms, dining halls, and admin blocks for schools, colleges, and universities. Part L compliant with rapid installation during term breaks.</p>
<div class="kc-sector-tags">
<span class="kc-sector-tag">Schools</span>
<span class="kc-sector-tag">Colleges</span>
<span class="kc-sector-tag">Universities</span>
</div>
<a href="/iso-frame-systems/modular-schools/" class="kc-sector-link">
<span>View education solutions</span>
<span>→</span>
</a>
</article>
<!-- CONSTRUCTION -->
<article class="kc-sector-card">
<div class="kc-sector-icon">🏗️</div>
<h3>Construction</h3>
<p>Site offices, welfare units, drying rooms, and canteens for contractors. Stackable up to 3 storeys with hire or purchase options.</p>
<div class="kc-sector-tags">
<span class="kc-sector-tag">Site Offices</span>
<span class="kc-sector-tag">Welfare Units</span>
<span class="kc-sector-tag">Drying Rooms</span>
</div>
<a href="/iso-frame-systems/welfare-units/" class="kc-sector-link">
<span>View construction solutions</span>
<span>→</span>
</a>
</article>
<!-- COMMERCIAL -->
<article class="kc-sector-card">
<div class="kc-sector-icon">🏢</div>
<h3>Commercial</h3>
<p>Modular offices, showrooms, and retail units for businesses. Energy-efficient with Part L A-Rated options for long-term operational savings.</p>
<div class="kc-sector-tags">
<span class="kc-sector-tag">Offices</span>
<span class="kc-sector-tag">Showrooms</span>
<span class="kc-sector-tag">Retail</span>
</div>
<a href="/modular-buildings/modular-offices/" class="kc-sector-link">
<span>View commercial solutions</span>
<span>→</span>
</a>
</article>
<!-- PUBLIC SECTOR -->
<article class="kc-sector-card">
<div class="kc-sector-icon">🏛️</div>
<h3>Public Sector</h3>
<p>Council offices, community centres, and government facilities. DDA compliant with REI60 fire-rated options for public safety requirements.</p>
<div class="kc-sector-tags">
<span class="kc-sector-tag">Councils</span>
<span class="kc-sector-tag">Government</span>
<span class="kc-sector-tag">Community</span>
</div>
<a href="/contact/" class="kc-sector-link">
<span>Discuss your project</span>
<span>→</span>
</a>
</article>
<!-- HEALTHCARE -->
<article class="kc-sector-card">
<div class="kc-sector-icon">🏥</div>
<h3>Healthcare</h3>
<p>Medical clinics, testing centres, and NHS facilities. Hygienic finishes, acoustic insulation, and full accessibility compliance.</p>
<div class="kc-sector-tags">
<span class="kc-sector-tag">Clinics</span>
<span class="kc-sector-tag">NHS</span>
<span class="kc-sector-tag">Testing Centres</span>
</div>
<a href="/modular-buildings/medical-clinics/" class="kc-sector-link">
<span>View healthcare solutions</span>
<span>→</span>
</a>
</article>
<!-- HOSPITALITY -->
<article class="kc-sector-card">
<div class="kc-sector-icon">🏨</div>
<h3>Hospitality & Leisure</h3>
<p>Modular hotels, restaurants, sports pavilions, and event spaces. Premium finishes with rapid deployment for seasonal demand.</p>
<div class="kc-sector-tags">
<span class="kc-sector-tag">Hotels</span>
<span class="kc-sector-tag">Restaurants</span>
<span class="kc-sector-tag">Sports Clubs</span>
</div>
<a href="/bespoke-modular-buildings/" class="kc-sector-link">
<span>View hospitality solutions</span>
<span>→</span>
</a>
</article>
</div>
<!-- BOTTOM CTA -->
<div class="kc-sectors-cta">
<a href="/contact/" class="kc-sectors-btn">
<span>Discuss Your Sector Requirements</span>
<span>→</span>
</a>
</div>
</div>
</section>
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<!-- KC MODULAR BUILDINGS — FAQ SECTION (ISO Frame) -->
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<header class="kc-faq-header">
<span class="kc-faq-badge">❓ Common Questions</span>
<h2 id="faq-heading">ISO Frame Modular Buildings FAQ</h2>
<p>Answers to the most common questions about our ISO frame modular building systems, specifications, and delivery.</p>
</header>
<!-- FAQ LIST -->
<div class="kc-faq-list">
<!-- FAQ 1 -->
<div class="kc-faq-item active">
<div class="kc-faq-q" onclick="this.parentElement.classList.toggle('active')">
<h3>How long does delivery take for ISO frame buildings?</h3>
<span class="kc-faq-icon">+</span>
</div>
<div class="kc-faq-a">
<div class="kc-faq-a-inner">
<p>Standard ISO frame units are typically delivered within <strong>4–12 weeks</strong> from order confirmation, depending on specification and customisation requirements.</p>
<p>Factors affecting delivery time include:</p>
<ul>
<li><strong>Standard units:</strong> 4–6 weeks</li>
<li><strong>REI60 fire-rated:</strong> 6–8 weeks</li>
<li><strong>Part L A-Rated:</strong> 8–10 weeks</li>
<li><strong>Bespoke configurations:</strong> 10–12 weeks</li>
</ul>
<p>We maintain stock of popular sizes for faster turnaround on urgent projects.</p>
</div>
</div>
</div>
<!-- FAQ 2 -->
<div class="kc-faq-item">
<div class="kc-faq-q" onclick="this.parentElement.classList.toggle('active')">
<h3>Do ISO frame buildings require planning permission?</h3>
<span class="kc-faq-icon">+</span>
</div>
<div class="kc-faq-a">
<div class="kc-faq-a-inner">
<p>Planning requirements depend on <strong>intended use, duration, and site context</strong> rather than construction method. Modular buildings are often assessed as permanent development.</p>
<p>Key considerations include:</p>
<ul>
<li><strong>Temporary use:</strong> May qualify for permitted development (typically under 28 days)</li>
<li><strong>Permanent installation:</strong> Usually requires full planning application</li>
<li><strong>Education/NHS:</strong> May benefit from fast-track or delegated approval</li>
</ul>
<p>We recommend consulting your local planning authority early. Our team can provide supporting documentation and technical specifications for your application.</p>
</div>
</div>
</div>
<!-- FAQ 3 -->
<div class="kc-faq-item">
<div class="kc-faq-q" onclick="this.parentElement.classList.toggle('active')">
<h3>What fire rating options are available?</h3>
<span class="kc-faq-icon">+</span>
</div>
<div class="kc-faq-a">
<div class="kc-faq-a-inner">
<p>We offer three specification tiers with different fire performance levels:</p>
<ul>
<li><strong>Standard:</strong> Mineral wool insulation provides inherent fire resistance suitable for most commercial applications</li>
<li><strong>REI60 Fire-Rated:</strong> 60-minute load-bearing, integrity, and insulation rating with Rockwool insulation, fire-rated doors (FD60), and intumescent seals</li>
<li><strong>Part L A-Rated:</strong> Standard fire resistance with enhanced thermal performance</li>
</ul>
<p>REI60 specification is recommended for <strong>schools, healthcare, public buildings, and accommodation</strong> where enhanced fire protection is required.</p>
</div>
</div>
</div>
<!-- FAQ 4 -->
<div class="kc-faq-item">
<div class="kc-faq-q" onclick="this.parentElement.classList.toggle('active')">
<h3>Can ISO frame buildings be stacked or linked together?</h3>
<span class="kc-faq-icon">+</span>
</div>
<div class="kc-faq-a">
<div class="kc-faq-a-inner">
<p>Yes. ISO frame buildings are designed for <strong>modular expansion</strong>:</p>
<ul>
<li><strong>Vertical stacking:</strong> Up to 3 storeys (Standard/Part L) or 2 storeys (REI60)</li>
<li><strong>Horizontal linking:</strong> Multiple units can be joined side-by-side or end-to-end</li>
<li><strong>Flat-pack option:</strong> Available for restricted access sites where craning isn't possible</li>
</ul>
<p>Internal connecting doors and corridors can be factory-fitted or added on-site. This flexibility allows you to <strong>start small and expand</strong> as your needs grow.</p>
</div>
</div>
</div>
<!-- FAQ 5 -->
<div class="kc-faq-item">
<div class="kc-faq-q" onclick="this.parentElement.classList.toggle('active')">
<h3>What warranty do you offer on ISO frame buildings?</h3>
<span class="kc-faq-icon">+</span>
</div>
<div class="kc-faq-a">
<div class="kc-faq-a-inner">
<p>All KC Modular ISO frame buildings come with comprehensive warranty coverage:</p>
<ul>
<li><strong>15-year structural warranty:</strong> Covers the steel frame, welded joints, and load-bearing components</li>
<li><strong>24-month defects warranty:</strong> Covers finishes, fittings, doors, windows, and electrical/plumbing systems</li>
<li><strong>Manufacturer warranties:</strong> Individual component warranties (e.g., heat pumps, sanitary fittings) as per manufacturer terms</li>
</ul>
<p>Warranty is subject to proper installation, use, and maintenance in accordance with our guidelines.</p>
</div>
</div>
</div>
<!-- FAQ 6 -->
<div class="kc-faq-item">
<div class="kc-faq-q" onclick="this.parentElement.classList.toggle('active')">
<h3>Are ISO frame buildings energy efficient?</h3>
<span class="kc-faq-icon">+</span>
</div>
<div class="kc-faq-a">
<div class="kc-faq-a-inner">
<p>Yes. All specifications include high-performance insulation, but our <strong>Part L A-Rated</strong> option delivers maximum energy efficiency:</p>
<ul>
<li><strong>Walls:</strong> 240mm mineral wool (U-value 0.16 W/m²K)</li>
<li><strong>Roof:</strong> 125mm PIR + 60mm mineral wool (U-value 0.11 W/m²K)</li>
<li><strong>Floor:</strong> Dual 120mm PIR (U-value 0.11 W/m²K)</li>
<li><strong>Windows:</strong> Triple-glazed (U-value 0.5 W/m²K)</li>
<li><strong>Heating:</strong> 4.5 SCOP air-air heat pump</li>
</ul>
<p>Part L A-Rated buildings can reduce energy costs by <strong>up to 60%</strong> compared to standard construction, making them ideal for long-term installations.</p>
</div>
</div>
</div>
<!-- FAQ 7 -->
<div class="kc-faq-item">
<div class="kc-faq-q" onclick="this.parentElement.classList.toggle('active')">
<h3>What certifications do your ISO frame buildings have?</h3>
<span class="kc-faq-icon">+</span>
</div>
<div class="kc-faq-a">
<div class="kc-faq-a-inner">
<p>All ISO frame buildings are manufactured under strict certified quality systems:</p>
<ul>
<li><strong>ISO 9001:</strong> Quality Management System</li>
<li><strong>ISO 1090 / EN 1090-1:</strong> Structural Steel CE Marking</li>
<li><strong>ISO 3834:</strong> Welding Quality Assurance</li>
<li><strong>ISO 14001:</strong> Environmental Management</li>
<li><strong>ISO 27001:</strong> Information Security</li>
<li><strong>ISO 22301:</strong> Business Continuity</li>
<li><strong>EN ISO 8501:</strong> Surface Preparation Standard</li>
</ul>
<p>We also hold <strong>Constructionline Bronze</strong>, <strong>SSIP</strong>, and <strong>Acclaim</strong> accreditations for health and safety compliance.</p>
</div>
</div>
</div>
<!-- FAQ 8 -->
<div class="kc-faq-item">
<div class="kc-faq-q" onclick="this.parentElement.classList.toggle('active')">
<h3>Can I hire ISO frame buildings instead of buying?</h3>
<span class="kc-faq-icon">+</span>
</div>
<div class="kc-faq-a">
<div class="kc-faq-a-inner">
<p>Yes. We offer flexible <strong>hire and purchase options</strong> to suit different project requirements:</p>
<ul>
<li><strong>Short-term hire:</strong> Ideal for construction sites, events, or temporary capacity needs</li>
<li><strong>Long-term hire:</strong> Cost-effective for projects with uncertain duration or phased requirements</li>
<li><strong>Purchase:</strong> Best value for permanent installations with 15-year structural warranty</li>
<li><strong>Hire-to-buy:</strong> Start with hire and convert to purchase, with rental payments offset against the final price</li>
</ul>
<p>Asset finance is also available for purchases, with <strong>40% deposit, 55% before delivery, and 5% within 14 days</strong> of installation.</p>
</div>
</div>
</div>
</div>
<!-- BOTTOM CTA -->
<div class="kc-faq-cta">
<p><strong>Still have questions?</strong> Our team is ready to help with technical specifications, pricing, and project planning.</p>
<div class="kc-faq-btns">
<a href="/contact/" class="kc-faq-btn kc-faq-btn-p">
<span>💬</span>
<span>Ask a Question</span>
</a>
<a href="tel:07443564451" class="kc-faq-btn kc-faq-btn-s">
<span>📞</span>
<span>07443 564 451</span>
</a>
</div>
</div>
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<span class="kc-cta-badge">🚀 Get Started Today</span>
<h2 id="cta-heading">Request Your Free ISO Frame Quote</h2>
<p>Tell us about your project and we'll provide a detailed quotation within 24 hours. No obligation, no pressure — just expert guidance on the right solution for your needs.</p>
<!-- FEATURES -->
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<span class="kc-cta-feature-icon">✓</span>
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<button type="submit" class="kc-cta-submit">Request Free Quote →</button>
<!-- TRUST BADGES -->
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<section class="kc-test" aria-labelledby="testimonials-heading">
<div class="kc-test-container">
<!-- HEADER -->
<header class="kc-test-header">
<span class="kc-test-badge">⭐ Customer Reviews</span>
<h2 id="testimonials-heading">Trusted by Businesses Across the UK</h2>
<p>See what our customers say about their ISO frame modular buildings — from schools to construction sites.</p>
</header>
<!-- STATS BAR -->
<div class="kc-test-stats">
<div class="kc-test-stat">
<div class="kc-test-stat-value">4.8<span>/5</span></div>
<div class="kc-test-stars">★★★★★</div>
<div class="kc-test-stat-label">Average Rating</div>
</div>
<div class="kc-test-stat">
<div class="kc-test-stat-value">47<span>+</span></div>
<div class="kc-test-stat-label">Verified Reviews</div>
</div>
<div class="kc-test-stat">
<div class="kc-test-stat-value">98<span>%</span></div>
<div class="kc-test-stat-label">Would Recommend</div>
</div>
<div class="kc-test-stat">
<div class="kc-test-stat-value">15<span>+</span></div>
<div class="kc-test-stat-label">Years Experience</div>
</div>
</div>
<!-- TESTIMONIALS GRID -->
<div class="kc-test-grid">
<!-- TESTIMONIAL 1: Education -->
<article class="kc-test-card">
<div class="kc-test-rating">★★★★★</div>
<p class="kc-test-quote">"The modular classroom block was delivered and installed during the summer holidays — ready for September term. Build quality is excellent, and the Part L compliance made planning straightforward. Highly recommend for any school expansion project."</p>
<div class="kc-test-author">
<div class="kc-test-avatar">JH</div>
<div class="kc-test-info">
<span class="kc-test-name">James Harrison</span>
<span class="kc-test-role">Estates Manager</span>
<span class="kc-test-sector">🏫 Education</span>
</div>
</div>
</article>
<!-- TESTIMONIAL 2: Construction -->
<article class="kc-test-card">
<div class="kc-test-rating">★★★★★</div>
<p class="kc-test-quote">"We've hired welfare units from KC for three major projects now. The 2-storey stacked configuration saved valuable site space, and the quality is far better than typical hire units. The team were responsive and delivery was on time."</p>
<div class="kc-test-author">
<div class="kc-test-avatar">MT</div>
<div class="kc-test-info">
<span class="kc-test-name">Mark Thompson</span>
<span class="kc-test-role">Site Manager, Balfour Construction</span>
<span class="kc-test-sector">🏗️ Construction</span>
</div>
</div>
</article>
<!-- TESTIMONIAL 3: Healthcare -->
<article class="kc-test-card">
<div class="kc-test-rating">★★★★★</div>
<p class="kc-test-quote">"The REI60 fire-rated specification was essential for our NHS clinic. KC delivered a fully compliant building with hygienic finishes and excellent acoustic insulation. Patients and staff have commented on how professional it looks."</p>
<div class="kc-test-author">
<div class="kc-test-avatar">SP</div>
<div class="kc-test-info">
<span class="kc-test-name">Dr. Sarah Patel</span>
<span class="kc-test-role">Practice Manager</span>
<span class="kc-test-sector">🏥 Healthcare</span>
</div>
</div>
</article>
<!-- TESTIMONIAL 4: Commercial -->
<article class="kc-test-card">
<div class="kc-test-rating">★★★★★</div>
<p class="kc-test-quote">"Our new sales office was installed in just 6 weeks from order. The Part L A-Rated spec means our energy bills are minimal, and the modern design impresses customers. Best investment we've made for the dealership."</p>
<div class="kc-test-author">
<div class="kc-test-avatar">RB</div>
<div class="kc-test-info">
<span class="kc-test-name">Richard Brooks</span>
<span class="kc-test-role">Director, Brooks Motor Group</span>
<span class="kc-test-sector">🏢 Commercial</span>
</div>
</div>
</article>
<!-- TESTIMONIAL 5: Public Sector -->
<article class="kc-test-card">
<div class="kc-test-rating">★★★★☆</div>
<p class="kc-test-quote">"KC provided utility blocks for our traveller site project under tight timelines. The DDA compliance and fire safety features met all our requirements. Communication was excellent throughout, though we'd have liked slightly faster initial response."</p>
<div class="kc-test-author">
<div class="kc-test-avatar">LW</div>
<div class="kc-test-info">
<span class="kc-test-name">Laura Williams</span>
<span class="kc-test-role">Project Officer, Surrey County Council</span>
<span class="kc-test-sector">🏛️ Public Sector</span>
</div>
</div>
</article>
<!-- TESTIMONIAL 6: Hospitality -->
<article class="kc-test-card">
<div class="kc-test-rating">★★★★★</div>
<p class="kc-test-quote">"The modular kitchen unit transformed our outdoor event space. Factory-fitted extraction, plumbing, and electrics meant we were operational within days of delivery. Build quality exceeded our expectations for a 'portable' building."</p>
<div class="kc-test-author">
<div class="kc-test-avatar">AC</div>
<div class="kc-test-info">
<span class="kc-test-name">Alex Carter</span>
<span class="kc-test-role">Owner, The Lakeside Venue</span>
<span class="kc-test-sector">🏨 Hospitality</span>
</div>
</div>
</article>
</div>
<!-- BOTTOM CTA -->
<div class="kc-test-cta">
<p><strong>Ready to join our satisfied customers?</strong> Get your free quote today.</p>
<a href="/contact/" class="kc-test-btn">
<span>Request Free Quote</span>
<span>→</span>
</a>
</div>
</div>
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<!-- KC MODULAR BUILDINGS — RELATED PRODUCTS (ISO Frame) -->
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<div class="kc-related-container">
<!-- HEADER -->
<header class="kc-related-header">
<span class="kc-related-badge">🏢 Explore More</span>
<h2 id="related-heading">Related Modular Building Solutions</h2>
<p>Discover our full range of modular buildings designed for different applications and sectors.</p>
</header>
<!-- PRODUCTS GRID -->
<div class="kc-related-grid">
<!-- PRODUCT 1: Modular Classrooms -->
<a href="/iso-frame-systems/modular-schools/" class="kc-related-card">
<div class="kc-related-img kc-related-img-edu">
<span class="kc-related-icon">🏫</span>
<span class="kc-related-tag">Education</span>
</div>
<div class="kc-related-content">
<h3>Modular Classrooms</h3>
<p>Part L compliant classroom blocks for schools and colleges. Rapid installation during term breaks with 15-year structural warranty.</p>
<div class="kc-related-features">
<span class="kc-related-feature">Part L Compliant</span>
<span class="kc-related-feature">DDA Accessible</span>
<span class="kc-related-feature">REI60 Option</span>
</div>
<div class="kc-related-price">From <strong>£600/sqm</strong></div>
<span class="kc-related-link">View classrooms <span>→</span></span>
</div>
</a>
<!-- PRODUCT 2: Welfare Units -->
<a href="/iso-frame-systems/welfare-units/" class="kc-related-card">
<div class="kc-related-img kc-related-img-con">
<span class="kc-related-icon">🏗️</span>
<span class="kc-related-tag">Construction</span>
</div>
<div class="kc-related-content">
<h3>Welfare Units</h3>
<p>Site welfare facilities including canteens, drying rooms, and toilet blocks. Stackable to 3 storeys with hire or purchase options.</p>
<div class="kc-related-features">
<span class="kc-related-feature">Stackable</span>
<span class="kc-related-feature">Hire Available</span>
<span class="kc-related-feature">4-Week Delivery</span>
</div>
<div class="kc-related-price">From <strong>£13,750</strong></div>
<span class="kc-related-link">View welfare units <span>→</span></span>
</div>
</a>
<!-- PRODUCT 3: Modular Offices -->
<a href="/modular-buildings/modular-offices/" class="kc-related-card">
<div class="kc-related-img kc-related-img-com">
<span class="kc-related-icon">🏢</span>
<span class="kc-related-tag">Commercial</span>
</div>
<div class="kc-related-content">
<h3>Modular Offices</h3>
<p>Energy-efficient office buildings for businesses. Part L A-Rated option reduces running costs by up to 60%.</p>
<div class="kc-related-features">
<span class="kc-related-feature">Part L A-Rated</span>
<span class="kc-related-feature">Triple Glazed</span>
<span class="kc-related-feature">Heat Pump</span>
</div>
<div class="kc-related-price">From <strong>£600/sqm</strong></div>
<span class="kc-related-link">View offices <span>→</span></span>
</div>
</a>
<!-- PRODUCT 4: Bespoke Buildings -->
<a href="/bespoke-modular-buildings/" class="kc-related-card">
<div class="kc-related-img kc-related-img-bes">
<span class="kc-related-icon">✨</span>
<span class="kc-related-tag">Bespoke</span>
</div>
<div class="kc-related-content">
<h3>Bespoke Buildings</h3>
<p>Custom-designed modular buildings for unique requirements. Showrooms, clinics, restaurants, and more — built to your specification.</p>
<div class="kc-related-features">
<span class="kc-related-feature">Custom Design</span>
<span class="kc-related-feature">Any Sector</span>
<span class="kc-related-feature">Full Fit-Out</span>
</div>
<div class="kc-related-price">From <strong>£1,000/sqm</strong></div>
<span class="kc-related-link">View bespoke <span>→</span></span>
</div>
</a>
<!-- PRODUCT 5: Medical Clinics -->
<a href="/modular-buildings/medical-clinics/" class="kc-related-card">
<div class="kc-related-img kc-related-img-hea">
<span class="kc-related-icon">🏥</span>
<span class="kc-related-tag">Healthcare</span>
</div>
<div class="kc-related-content">
<h3>Medical Clinics</h3>
<p>Hygienic modular clinics for NHS and private healthcare. REI60 fire-rated with acoustic insulation and full accessibility.</p>
<div class="kc-related-features">
<span class="kc-related-feature">REI60 Fire-Rated</span>
<span class="kc-related-feature">Hygienic Finish</span>
<span class="kc-related-feature">DDA Compliant</span>
</div>
<div class="kc-related-price">From <strong>£14,950</strong></div>
<span class="kc-related-link">View clinics <span>→</span></span>
</div>
</a>
<!-- PRODUCT 6: Luxury Lodges -->
<a href="/modular-buildings/luxury-lodges/" class="kc-related-card">
<div class="kc-related-img kc-related-img-res">
<span class="kc-related-icon">🏨</span>
<span class="kc-related-tag">Residential</span>
</div>
<div class="kc-related-content">
<h3>Luxury Lodges</h3>
<p>Premium timber-framed lodges for holiday parks, Airbnb, and residential use. BS3632 compliant with 75-year lifespan.</p>
<div class="kc-related-features">
<span class="kc-related-feature">BS3632</span>
<span class="kc-related-feature">75-Year Lifespan</span>
<span class="kc-related-feature">Triple Glazed</span>
</div>
<div class="kc-related-price">From <strong>£52,250</strong></div>
<span class="kc-related-link">View lodges <span>→</span></span>
</div>
</a>
</div>
<!-- BOTTOM CTA -->
<div class="kc-related-cta">
<a href="/modular-buildings/" class="kc-related-btn">
<span>View All Modular Buildings</span>
<span>→</span>
</a>
</div>
</div>
</section>
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.kc-footer-logo{font-size:22px;font-weight:800;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.kc-footer-logo span{color:#f97316}
.kc-footer-desc{font-size:14px;color:rgba(255,255,255,.7);line-height:1.7;margin-bottom:20px}
.kc-footer-social{display:flex;gap:12px}
.kc-footer-social a{width:40px;height:40px;background:rgba(255,255,255,.08);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;text-decoration:none;transition:all .2s}
.kc-footer-social a:hover{background:#f97316;transform:translateY(-3px)}
.kc-footer-title{font-size:14px;font-weight:700;color:#fff;text-transform:uppercase;letter-spacing:1px;margin-bottom:20px}
.kc-footer-links{list-style:none;padding:0;margin:0}
.kc-footer-links li{margin-bottom:12px}
.kc-footer-links a{font-size:14px;color:rgba(255,255,255,.7);text-decoration:none;transition:color .2s}
.kc-footer-links a:hover{color:#f97316}
.kc-footer-contact{display:flex;flex-direction:column;gap:16px}
.kc-footer-contact-item{display:flex;align-items:flex-start;gap:12px}
.kc-footer-contact-icon{width:36px;height:36px;background:rgba(255,255,255,.08);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.kc-footer-contact-text{display:flex;flex-direction:column}
.kc-footer-contact-label{font-size:11px;color:rgba(255,255,255,.5);text-transform:uppercase;letter-spacing:.5px}
.kc-footer-contact-value{font-size:14px;color:#fff;font-weight:600}
.kc-footer-contact-value a{color:#fff;text-decoration:none;transition:color .2s}
.kc-footer-contact-value a:hover{color:#f97316}
.kc-footer-certs{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.kc-footer-cert{font-size:11px;font-weight:600;color:rgba(255,255,255,.7);background:rgba(255,255,255,.08);padding:6px 12px;border-radius:6px}
.kc-footer-bottom{padding-top:32px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px}
.kc-footer-copy{font-size:13px;color:rgba(255,255,255,.5)}
.kc-footer-copy a{color:rgba(255,255,255,.7);text-decoration:none}
.kc-footer-copy a:hover{color:#f97316}
.kc-footer-legal{display:flex;flex-wrap:wrap;gap:20px}
.kc-footer-legal a{font-size:13px;color:rgba(255,255,255,.5);text-decoration:none;transition:color .2s}
.kc-footer-legal a:hover{color:#f97316}
@media(max-width:768px){
.kc-footer{padding:48px 20px 24px}
.kc-footer-grid{gap:32px}
.kc-footer-col{flex:1 1 100%}
.kc-footer-bottom{flex-direction:column;text-align:center}
}
</style>
<footer class="kc-footer" aria-label="Site footer">
<div class="kc-footer-container">
<!-- FOOTER GRID -->
<div class="kc-footer-grid">
<!-- COLUMN 1: ABOUT -->
<div class="kc-footer-col-wide">
<div class="kc-footer-logo">KC <span>Modular</span></div>
<p class="kc-footer-desc">UK manufacturer of bespoke modular buildings. Factory-built offices, classrooms, welfare units & luxury lodges with 15-year structural warranty and 4-12 week delivery.</p>
<div class="kc-footer-social">
<a href="https://www.linkedin.com/company/kc-cabins-solutions" target="_blank" rel="noopener" aria-label="LinkedIn">in</a>
<a href="https://www.facebook.com/kcmodularbuildings/" target="_blank" rel="noopener" aria-label="Facebook">f</a>
<a href="https://www.instagram.com/kccabinssolutions/" target="_blank" rel="noopener" aria-label="Instagram">📷</a>
</div>
</div>
<!-- COLUMN 2: PRODUCTS -->
<div class="kc-footer-col">
<h3 class="kc-footer-title">Products</h3>
<ul class="kc-footer-links">
<li><a href="/iso-frame-systems/">ISO Frame Buildings</a></li>
<li><a href="/iso-frame-systems/modular-schools/">Modular Classrooms</a></li>
<li><a href="/iso-frame-systems/welfare-units/">Welfare Units</a></li>
<li><a href="/modular-buildings/modular-offices/">Modular Offices</a></li>
<li><a href="/modular-buildings/medical-clinics/">Medical Clinics</a></li>
<li><a href="/modular-buildings/luxury-lodges/">Luxury Lodges</a></li>
<li><a href="/bespoke-modular-buildings/">Bespoke Buildings</a></li>
</ul>
</div>
<!-- COLUMN 3: SECTORS -->
<div class="kc-footer-col">
<h3 class="kc-footer-title">Sectors</h3>
<ul class="kc-footer-links">
<li><a href="/sectors/education/">Education</a></li>
<li><a href="/sectors/construction/">Construction</a></li>
<li><a href="/sectors/commercial/">Commercial</a></li>
<li><a href="/sectors/public-sector/">Public Sector</a></li>
<li><a href="/sectors/healthcare/">Healthcare</a></li>
<li><a href="/sectors/hospitality/">Hospitality & Leisure</a></li>
</ul>
</div>
<!-- COLUMN 4: COMPANY -->
<div class="kc-footer-col">
<h3 class="kc-footer-title">Company</h3>
<ul class="kc-footer-links">
<li><a href="/about/">About Us</a></li>
<li><a href="/projects/">Projects</a></li>
<li><a href="/blog/">Blog</a></li>
<li><a href="/technical/">Technical Specs</a></li>
<li><a href="/finance/">Finance Options</a></li>
<li><a href="/contact/">Contact Us</a></li>
</ul>
</div>
<!-- COLUMN 5: CONTACT -->
<div class="kc-footer-col-wide">
<h3 class="kc-footer-title">Contact Us</h3>
<div class="kc-footer-contact">
<div class="kc-footer-contact-item">
<span class="kc-footer-contact-icon">📞</span>
<div class="kc-footer-contact-text">
<span class="kc-footer-contact-label">Phone</span>
<span class="kc-footer-contact-value"><a href="tel:07443564451">07443 564 451</a></span>
</div>
</div>
<div class="kc-footer-contact-item">
<span class="kc-footer-contact-icon">📧</span>
<div class="kc-footer-contact-text">
<span class="kc-footer-contact-label">Email</span>
<span class="kc-footer-contact-value"><a href="mailto:[email protected]">[email protected]</a></span>
</div>
</div>
<div class="kc-footer-contact-item">
<span class="kc-footer-contact-icon">🕐</span>
<div class="kc-footer-contact-text">
<span class="kc-footer-contact-label">Hours</span>
<span class="kc-footer-contact-value">Mon–Fri: 8am–6pm</span>
</div>
</div>
</div>
<!-- CERTIFICATIONS -->
<div class="kc-footer-certs">
<span class="kc-footer-cert">ISO 9001</span>
<span class="kc-footer-cert">ISO 14001</span>
<span class="kc-footer-cert">EN 1090</span>
<span class="kc-footer-cert">Constructionline</span>
<span class="kc-footer-cert">SSIP</span>
</div>
</div>
</div>
<!-- FOOTER BOTTOM -->
<div class="kc-footer-bottom">
<p class="kc-footer-copy">© 2026 <a href="/">KC Cabins Solutions Ltd</a>. All rights reserved. Company Reg: 1328010</p>
<div class="kc-footer-legal">
<a href="/privacy-policy/">Privacy Policy</a>
<a href="/terms-conditions/">Terms & Conditions</a>
<a href="/cookie-policy/">Cookie Policy</a>
<a href="/sitemap/">Sitemap</a>
</div>
</div>
</div>
</footer>
<!-- SCHEMA: Organization -->
<script type="application/ld+json">
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"@type": "Organization",
"@id": "https://kcmodularbuildings.co.uk/#organization",
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"legalName": "KC Cabins Solutions Ltd",
"url": "https://kcmodularbuildings.co.uk",
"logo": "https://kcmodularbuildings.co.uk/wp-content/uploads/logo.png",
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"email": "[email protected]",
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"numberOfEmployees": {
"@type": "QuantitativeValue",
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"address": {
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"addressCountry": "GB"
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"areaServed": {
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"sameAs": [
"https://www.linkedin.com/company/kc-cabins-solutions",
"https://www.facebook.com/kcmodularbuildings/",
"https://www.instagram.com/kccabinssolutions/"
],
"hasCredential": [
{
"@type": "EducationalOccupationalCredential",
"credentialCategory": "certification",
"name": "ISO 9001:2015"
},
{
"@type": "EducationalOccupationalCredential",
"credentialCategory": "certification",
"name": "ISO 14001:2015"
},
{
"@type": "EducationalOccupationalCredential",
"credentialCategory": "certification",
"name": "EN 1090-1"
},
{
"@type": "EducationalOccupationalCredential",
"credentialCategory": "certification",
"name": "Constructionline Bronze"
},
{
"@type": "EducationalOccupationalCredential",
"credentialCategory": "certification",
"name": "SSIP"
}
]
}
</script>
<!-- SCHEMA: WebSite with SearchAction -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "WebSite",
"name": "KC Modular Buildings",
"url": "https://kcmodularbuildings.co.uk",
"potentialAction": {
"@type": "SearchAction",
"target": "https://kcmodularbuildings.co.uk/?s={search_term_string}",
"query-input": "required name=search_term_string"
}
}
</script>
<!-- END: FOOTER WIDGET -->