Collection: Celotex Insulation

Celotex insulation is the leading manufacturer multi-purpose insulation boards that provides solutions for cold spots in walls, floors, roofs, cavities and many more areas. These cold spots are usually created by a lack of insulation, leading to dampness and condensation. This is where Celotex insulation comes in.

We stock popular Celotex insulation ranges, including GA4000, TB4000, XR4000, PL4000 and CW4000, and can help you find the wall insulation, floor insulation, roof insulation or cavity insulation that you require. 

We offer Celotex insulation boards that can cover between 2.88m² and 25.92m², with thicknesses between 12mm and 200mm so you’re sure to find the right product for your application. These boards are cost-effective, lightweight, strong and easy to install, making them a popular insulation choice.

Celotex insulation is manufactured from tough polyisocyanurate (PIR), using a perfect mix of certain blowing agents, which acquires zero Ozone Depletion Potential (zero ODP) and a low global warming impact. This makes it great for the environment, as well as for your heating and cooling costs, as it has a thermal conductivity of 0.022W/mK. 

Celotex has achieved an A+ rating when it is compared to the BRE Green Guide and has certification from BBA. The Celotex insulation boards also have a good reaction to fire when measured in accordance with new European standards. It achieves the required U-values and will help you to meet current and future Building Regulations.

All Celotex products are readily available from Insulation4less with lead times of 3 to 5 days. If you need any help deciding on the right Celotex insulation for your project, get in touch with our team on 020 3582 6399 or via our Live Chat .

36 products
  • 80mm Celotex GA4080 2.4m x 1.2m
    80mm Celotex GA4080 2.4m x 1.2m Floor Insulation
    Vendor
    Celotex
    Regular price
    £25.99 £31.19
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    £25.99 £31.19
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  • Celotex PL4050 62.5mm 2.4m x 1.2m
    Celotex PL4050 62.5mm 2.4m x 1.2m Wall Insulation
    Vendor
    Celotex
    Regular price
    £41.95 £50.34
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    £41.95 £50.34
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  • Celotex PL4040 52.5mm 2.4m x 1.2m
    Celotex PL4040 52.5mm 2.4m x 1.2m Wall Insulation
    Vendor
    Celotex
    Regular price
    £40.80 £48.96
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    £40.80 £48.96
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  • Celotex CW4000 Cavity Wall Insulation Board 450mm x 1200mm - All Sizes
    Celotex CW4000 Cavity Wall Insulation Board 450mm x 1200mm - All Sizes Cavity wall Insulation
    Vendor
    Celotex
    Regular price
    from £44.30 £53.16
    Sale price
    from £44.30 £53.16
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  • Celotex PL4060 72.5mm 2.4m x 1.2m
    Celotex PL4060 72.5mm 2.4m x 1.2m Wall Insulation
    Vendor
    Celotex
    Regular price
    £48.10 £57.72
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    £48.10 £57.72
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  • 140mm Celotex XR4140 Insulation Board 2.4m x 1.2m
    140mm Celotex XR4140 Insulation Board 2.4m x 1.2m Floor Insulation
    Vendor
    Celotex
    Regular price
    £42.50 £51.00
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    £42.50 £51.00
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  • 12mm Celotex TB4012 2.4m x 1.2m
    12mm Celotex TB4012 2.4m x 1.2m Floor Insulation
    Vendor
    Celotex
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    £0.00 £0.00
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    £0.00 £0.00
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  • Celotex CW4050 50mm x 1.2m x 0.45m - 5.94m2
    Celotex CW4050 50mm x 1.2m x 0.45m - 5.94m2 Cavity wall Insulation
    Vendor
    Celotex
    Regular price
    £44.30 £53.16
    Sale price
    £44.30 £53.16
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