Celotex Floor Insulation

Check out our full range of Celotex insulation products below. We have PIR insulation board in sizes from 12mm up to 200mm. We also have special order products available. If you need help in selecting the correct Celotex product to use for your requirements please feel free to contact us on 0203 582 6399 or sales@insulation4less.co.uk.
22 products
Celotex GA4000 General Purpose PIR Insulation Board 2.4m x 1.2m (All Sizes)
Celotex GA4000 General Purpose PIR Insulation Board 2.4m x 1.2m (All Sizes)
Free Delivery
on orders over £300
Vendor
Celotex
Celotex GA4000 General Purpose PIR Insulation Board 2.4m x 1.2m (All Sizes)
  • Versatile Celotex GA4000 insulation boards for floors, walls, and roofs.
  • Low emissivity foil face enhances thermal performance.
  • Environmentally friendly, durable, lightweight, and easy to install with class 1 fire rating.
Regular price
£11.50£13.80
Sale price
Was £0.00
£11.50 £13.80
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Celotex 50mm GA4050 2.4m x 1.2m
Celotex 50mm GA4050 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
Celotex 50mm GA4050 2.4m x 1.2m
Regular price
£17.30£20.76
Sale price
Was £0.00
£17.30 £20.76
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Celotex 100mm GA4100 2.4m x 1.2m | 100mm Celotex
Celotex 100mm GA4100 2.4m x 1.2m | 100mm Celotex
Free Delivery
on orders over £300
Vendor
Celotex
Celotex 100mm GA4100 2.4m x 1.2m | 100mm Celotex
Regular price
£29.50£35.40
Sale price
Was £0.00
£29.50 £35.40
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Celotex 25mm TB4025 2.4m x 1.2m
Celotex 25mm TB4025 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
Celotex 25mm TB4025 2.4m x 1.2m
Regular price
£11.50£13.80
Sale price
Was £0.00
£11.50 £13.80
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75mm Celotex GA4075 2.4m x 1.2m
75mm Celotex GA4075 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
75mm Celotex GA4075 2.4m x 1.2m
Regular price
£24.50£29.40
Sale price
Was £0.00
£24.50 £29.40
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Celotex TB4000 Insulation Board 1.2m x 2.4m - 25mm to 40mm
Celotex TB4000 Insulation Board 1.2m x 2.4m - 25mm to 40mm
Free Delivery
on orders over £300
Vendor
Celotex
Celotex TB4000 Insulation Board 1.2m x 2.4m - 25mm to 40mm
  • Durable Celotex TB4000 Insulation Board
  • Exceptional thermal conductivity (0.022W/mK)
  • Cost-effective, strong, easy to install, and long-lasting
Regular price
£11.50£13.80
Sale price
Was £0.00
£11.50 £13.80
Sold out
Celotex 120mm XR4120 2.4m x 1.2m
Celotex 120mm XR4120 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
Celotex 120mm XR4120 2.4m x 1.2m
Regular price
£36.95£44.34
Sale price
Was £0.00
£36.95 £44.34
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Celotex XR4000 Insulation Board 1.2m x 2.4m - 110mm to 200mm
Celotex XR4000 Insulation Board 1.2m x 2.4m - 110mm to 200mm
Free Delivery
on orders over £300
Vendor
Celotex
Celotex XR4000 Insulation Board 1.2m x 2.4m - 110mm to 200mm
  • Environmental-friendly PIR insulation board with foil facings
  • High thermal conductivity (0.022W/mK) eliminates cold spots, reduces energy usage, and lowers bills
  • Certified with A+ rating, BBA certificates, and meets Building Regulations; easy to install, strong, and long-lasting
Regular price
£36.95£44.34
Sale price
Was £0.00
£36.95 £44.34
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Celotex 40mm TB4040 2.4m x 1.2m
Celotex 40mm TB4040 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
Celotex 40mm TB4040 2.4m x 1.2m
Regular price
£16.50£19.80
Sale price
Was £0.00
£16.50 £19.80
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70mm Celotex GA4070 2.4m x 1.2m
70mm Celotex GA4070 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
70mm Celotex GA4070 2.4m x 1.2m
  • Economical, lightweight, and durable PIR insulation board.
  • Features low emissivity foil for enhanced thermal conductivity.
  • Environmentally safe, fire and water-resistant with long-term performance.
Regular price
£24.50£29.40
Sale price
Was £0.00
£24.50 £29.40
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150mm Celotex XR4150 2.4m X 1.2m | Celotex 150mm
150mm Celotex XR4150 2.4m X 1.2m | Celotex 150mm
Free Delivery
on orders over £300
Vendor
Celotex
150mm Celotex XR4150 2.4m X 1.2m | Celotex 150mm
  • Easy to install in various applications.
  • Thick PIR board with high thermal performance.
  • Manufactured with low emission standards.
Regular price
£45.50£54.60
Sale price
Was £0.00
£45.50 £54.60
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Celotex 60mm GA4060 2.4m x 1.2m
Celotex 60mm GA4060 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
Celotex 60mm GA4060 2.4m x 1.2m
Regular price
£22.36£26.83
Sale price
Was £0.00
£22.36 £26.83
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90mm Celotex GA4090 2.4m x 1.2m
90mm Celotex GA4090 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
90mm Celotex GA4090 2.4m x 1.2m
  • Celotex GA4090: 90mm PIR insulation board
  • Thermal conductivity: 0.022W/mK
  • Eco-friendly, complies with regulations, trusted for 9 decades
Regular price
£30.75£36.90
Sale price
Was £0.00
£30.75 £36.90
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Celotex 30mm TB4030 2.4m x 1.2m
Celotex 30mm TB4030 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
Celotex 30mm TB4030 2.4m x 1.2m
  • Cost-effective Celotex TB4030 PIR insulation board
  • Lightweight, easy installation, high tensile strength
  • Fire and water-resistant, eco-friendly, long-lasting insulation for walls, roofs, and floors
Regular price
£13.50£16.20
Sale price
Was £0.00
£13.50 £16.20
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80mm Celotex GA4080 2.4m x 1.2m
80mm Celotex GA4080 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
80mm Celotex GA4080 2.4m x 1.2m
Regular price
£27.95£33.54
Sale price
Was £0.00
£27.95 £33.54
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12mm Celotex TB4012 2.4m x 1.2m
12mm Celotex TB4012 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
12mm Celotex TB4012 2.4m x 1.2m
  • High-Performance Insulation: PIR composition, 0.022W/mK thermal conductivity.
  • Environmentally Friendly: Zero ODP, low global warming impact.
  • Versatile & Certified: Eliminates cold spots, meets Building Regulations, and offers energy savings.
Regular price
£0.00£0.00
Sale price
Was £0.00
£0.00 £0.00
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140mm Celotex XR4140 Insulation Board 2.4m x 1.2m
140mm Celotex XR4140 Insulation Board 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
140mm Celotex XR4140 Insulation Board 2.4m x 1.2m
  • Cut-to-fit for rafters/joists
  • High thermal performance
  • Environmentally friendly
Regular price
£46.20£55.44
Sale price
Was £0.00
£46.20 £55.44
Sold out
Celotex 20mm TB4020 2.4m x 1.2m
Celotex 20mm TB4020 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
Celotex 20mm TB4020 2.4m x 1.2m
Regular price
£12.72£15.26
Sale price
Was £0.00
£12.72 £15.26
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130mm Celotex XR4130 2.4m x 1.2m
130mm Celotex XR4130 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
130mm Celotex XR4130 2.4m x 1.2m
  • Premium 130mm Celotex XR4130 insulation
  • Polyisocyanurate (PIR) for eco-friendly high performance
  • Cost-effective, BBA certified, A+ rating, meets Building Regulations
Regular price
£43.95£52.74
Sale price
Was £0.00
£43.95 £52.74
Sold out
Celotex 110mm XR4110 2.4m x 1.2m
Celotex 110mm XR4110 2.4m x 1.2m
Free Delivery
on orders over £300
Vendor
Celotex
Celotex 110mm XR4110 2.4m x 1.2m
  • Cost-effective, high-performance insulation board
  • Thermal conductivity of 0.022W/mK, suitable for various applications
  • Environmentally friendly with zero ozone depletion potential
Regular price
£38.50£46.20
Sale price
Was £0.00
£38.50 £46.20
Sold out
Celotex 165mm XR4165 2.4m x 1.2m (Pallet of 12)
Celotex 165mm XR4165 2.4m x 1.2m (Pallet of 12)
Free Delivery
on orders over £300
Vendor
Celotex
Celotex 165mm XR4165 2.4m x 1.2m (Pallet of 12)
  • 165mm Celotex XR4000 PIR insulation board
  • Achieves A+ rating, low U-values, and BBA certifications
  • Easy installation, cost-effective, long-lasting thermal performance
Regular price
£781.52£937.82
Sale price
Was £0.00
£781.52 £937.82
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Celotex XR4200 200mm x 2.4m x 1.2m (Pallet of 12)
Celotex XR4200 200mm x 2.4m x 1.2m (Pallet of 12)
Free Delivery
on orders over £300
Vendor
Celotex
Celotex XR4200 200mm x 2.4m x 1.2m (Pallet of 12)
  • High-performance Celotex XR4200 insulation board
  • Low global warming impact, zero ozone depletion
  • Superb thermal conductivity, easy installation
Regular price
£954.24£1,145.09
Sale price
Was £0.00
£954.24 £1,145.09
Sold out

Insulation4Less proudly presents an extensive range of Celotex Floor Insulation products, curated meticulously to meet the diverse needs of our clientele. Famed for its stellar reputation in providing high-quality Polyisocyanurate (PIR) insulation boards, Celotex offers a versatile collection ensuring top-tier thermal performance across a spectrum of floor insulation applications.

General Purpose PIR Insulation Boards

The Celotex GA4000 Series, encompassing various thickness options like 25mm, 50mm, 60mm, 70mm, 75mm, 80mm, 90mm, and 100mm, serves as a one-stop solution for multiple applications, including roof, wall, and floor insulation. These general-purpose boards are well-regarded for their:

  • Versatility: Capable of meeting U-value requirements when used singularly or in combination.
  • Thermal Efficacy: High performance in varied temperature scenarios.
  • Ease of Installation: Lightweight and simple to fit.

     

Utilise the GA4000 series for floating floors, solid floors, and timber floors, ensuring an envelope of energy-efficient insulation across your build.

Premium Performance PIR Insulation

The Celotex XR4000 Series, available in substantial thicknesses like 110mm, 120mm, 130mm, 140mm, 150mm, 165mm, and up to 200mm, might just be your go to. Its robustness and premium thermal efficiency make it apt for:

  • Hefty Applications: Particularly suitable for projects demanding high thicknesses without compromising on performance.
  • Specialised Uses: Ideal for heavy-duty floor insulation applications where higher thermal resistance is paramount.

     

These boards, due to their thickness and thermal capabilities, stand out for applications in larger construction or industrial spaces.

High Performance Thin Insulation

The Celotex TB4000 Series, available in slender profiles like 12mm, 20mm, 25mm, 30mm, and 40mm, provide exceptional solutions when minimal intrusion into floor space is crucial. Some characteristics and uses include:

  • Space Efficiency: Optimal for situations where installation space is restricted.
  • Enhanced Thermal Bridging: Assists in reducing thermal bridges due to its slim profile.

     

This series adeptly complements applications where space conservation and enhanced thermal bridging are crucial, such as underfloor heating systems or upper-floor levels in residential settings.

How to Choose the Right Celotex Floor Insulation

Selecting the optimal Celotex insulation entails considering various factors:

  • U-Value Requirements: Ensure your choice meets the U-value requirements set by building regulations.
  • Application Type: Differentiate whether the application is for a new build, retrofit, or a specific installation like underfloor heating.

     

Floor Type: Consider whether the floor is solid, suspended, or a different type, as this influences the insulation method.

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