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Cavity Slab Insulation
Insulate your space with our superior cavity and internal wall insulation such...
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Celotex Insulation Board
These easy-to install Celotex PIR insulation boards come with flawless cuts and...
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Acoustic Roll Insulation
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Loft Roll Insulation
Knauf Insulation Loft Roll 44 is a Glass Mineral Wool roll, designed...
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Floor Insulation Board
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Roof Insulation Board
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Collection: Celotex Insulation Board
These easy-to install Celotex PIR insulation boards come with flawless cuts and can be worked on by anyone. High thermal performance is created by blending materials together using heat, which causes gases to be released and then trapped within the board. Popular sizes are 25mm Celotex, 50mm Celotex and 100mm Celotex.
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6 Boards x 90mm Celotex Thermaclass Cavity Wall 21 Insulation - 1190mm x 450mm
Vendor:CelotexRegular price £81.43 inc VAT
£67.86 ex VATRegular priceUnit price / per£0.00Sale price £81.43 inc VAT£67.86 ex VAT£21.12 per m²
TC1090 -
5 Boards x 115mm Celotex Thermaclass Cavity Wall 21 Insulation - 1190mm x 450mm
Vendor:CelotexRegular price £87.56 inc VAT
£72.97 ex VATRegular priceUnit price / per£0.00Sale price £87.56 inc VAT£72.97 ex VAT£27.25 per m²
TC1115 -
4 Boards x 140mm Celotex Thermaclass Cavity Wall 21 Insulation - 1190mm x 450mm
Vendor:CelotexRegular price £86.00 inc VAT
£71.67 ex VATRegular priceUnit price / per£0.00Sale price £86.00 inc VAT£71.67 ex VAT£33.46 per m²
TC1140 -
50mm Celotex CW4050 Cavity Insulation - 1200mm x 450mm - 11 Boards
Vendor:CelotexRegular price £55.00 inc VAT
£45.83 ex VATRegular priceUnit price / per£0.00Sale price £55.00 inc VAT£45.83 ex VAT£7.72 per m²
CW4050 -
75mm Celotex CW4075 Cavity Insulation - 1200mm x 450mm - 8 Boards
Vendor:CelotexRegular price £59.99 inc VAT
£49.99 ex VATRegular priceUnit price / per£0.00Sale price £59.99 inc VAT£49.99 ex VAT£11.57 per m²
CW4075 -
100mm Celotex CW4100 Cavity Insulation - 1200mm x 450mm - 6 Boards
Vendor:CelotexRegular price £56.99 inc VAT
£47.49 ex VATRegular priceUnit price / per£0.00Sale price £56.99 inc VAT£47.49 ex VAT£14.66 per m²
CW4100 -
25mm Celotex TB4025 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £14.32 inc VAT
£11.93 ex VATRegular priceUnit price / per£15.88Sale price £14.32 inc VAT£11.93 ex VAT£4.14 per m²
TB4025Sale -
24 Boards x 25mm Celotex TB4025 PIR Insulation - 2400mm x 1200mm
Vendor:CelotexRegular price £340.00 inc VAT
£283.33 ex VATRegular priceUnit price / per£406.94Sale price £340.00 inc VAT£283.33 ex VAT£4.10 per m²
TB4025-24Sale -
30mm Celotex TB4030 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £17.17 inc VAT
£14.31 ex VATRegular priceUnit price / per£0.00Sale price £17.17 inc VAT£14.31 ex VAT£4.97 per m²
TB4030 -
40mm Celotex TB4040 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £20.23 inc VAT
£16.86 ex VATRegular priceUnit price / per£0.00Sale price £20.23 inc VAT£16.86 ex VAT£5.85 per m²
TB4040 -
50mm Celotex GA4050 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £21.61 inc VAT
£18.01 ex VATRegular priceUnit price / per£23.64Sale price £21.61 inc VAT£18.01 ex VAT£6.25 per m²
GA4050Sale -
24 Boards x 50mm Celotex GA4050 PIR Insulation - 2400mm x 1200mm
Vendor:CelotexRegular price £515.00 inc VAT
£429.17 ex VATRegular priceUnit price / per£604.22Sale price £515.00 inc VAT£429.17 ex VAT£6.21 per m²
GA4050-24Sale -
60mm Celotex GA4060 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £27.24 inc VAT
£22.70 ex VATRegular priceUnit price / per£0.00Sale price £27.24 inc VAT£22.70 ex VAT£7.88 per m²
GA4060 -
70mm Celotex GA4070 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £30.42 inc VAT
£25.35 ex VATRegular priceUnit price / per£0.00Sale price £30.42 inc VAT£25.35 ex VAT£8.80 per m²
GA4070 -
75mm Celotex GA4075 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £30.20 inc VAT
£25.17 ex VATRegular priceUnit price / per£33.00Sale price £30.20 inc VAT£25.17 ex VAT£8.74 per m²
GA4075Sale -
24 Boards x 75mm Celotex GA4075 PIR Insulation - 2400mm x 1200mm
Vendor:CelotexRegular price £720.00 inc VAT
£600.00 ex VATRegular priceUnit price / per£879.84Sale price £720.00 inc VAT£600.00 ex VAT£8.68 per m²
GA4075-24Sale -
80mm Celotex GA4080 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £34.92 inc VAT
£29.10 ex VATRegular priceUnit price / per£0.00Sale price £34.92 inc VAT£29.10 ex VAT£10.10 per m²
GA4080 -
90mm Celotex GA4090 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £36.08 inc VAT
£30.07 ex VATRegular priceUnit price / per£0.00Sale price £36.08 inc VAT£30.07 ex VAT£10.44 per m²
GA4090 -
100mm Celotex GA4100 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £35.99 inc VAT
£29.99 ex VATRegular priceUnit price / per£40.75Sale price £35.99 inc VAT£29.99 ex VAT£10.41 per m²
GA4100Sale -
24 Boards x 100mm Celotex GA4100 PIR Insulation - 2400mm x 1200mm
Vendor:CelotexRegular price £860.00 inc VAT
£716.67 ex VATRegular priceUnit price / per£1,273.82Sale price £860.00 inc VAT£716.67 ex VAT£10.37 per m²
GA4100-24Sale -
110mm Celotex XR4110 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £46.45 inc VAT
£38.71 ex VATRegular priceUnit price / per£0.00Sale price £46.45 inc VAT£38.71 ex VAT£13.44 per m²
XR4110 -
120mm Celotex XR4120 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £44.82 inc VAT
£37.35 ex VATRegular priceUnit price / per£0.00Sale price £44.82 inc VAT£37.35 ex VAT£12.97 per m²
XR4120 -
130mm Celotex XR4130 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £53.44 inc VAT
£44.53 ex VATRegular priceUnit price / per£0.00Sale price £53.44 inc VAT£44.53 ex VAT£15.46 per m²
XR4130 -
150mm Celotex XR4150 PIR Insulation Board - 2400mm x 1200mm
Vendor:CelotexRegular price £55.00 inc VAT
£45.83 ex VATRegular priceUnit price / per£58.91Sale price £55.00 inc VAT£45.83 ex VAT£15.91 per m²
XR4150Sale
Celotex have decades of experience in producing insulation boards, prioritising not only performance but also compliance with building regulations and carbon reduction initiatives. Their PIR boards are noteworthy for their high levels of energy efficiency.
We stock the full range of sizes, all available at the best prices online and with free delivery over £500.
Celotex insulation boards are high-performance building insulation products made from rigid polyisocyanurate foam. They are designed to provide thermal insulation, fire protection and sound reduction for various building applications, including roofing, walls, floors, and foundations.
Some key features of Celotex insulation boards include:
- Excellent thermal performance: Celotex insulation boards have a high thermal conductivity rating, making them effective at reducing heat loss in a building.
- Fire resistance: Celotex insulation boards are non-combustible and have a Class 0 fire rating, providing reliable fire protection for building structures.
- Moisture resistance: Celotex insulation boards are designed to resist water absorption and maintain their insulation performance even in damp conditions.
- Easy to install: Celotex insulation boards are lightweight, strong, and easy to cut, making them simple to install in various building applications.
- Eco-friendly: Celotex insulation boards are made from a renewable resource and do not contain any harmful chemicals, making them an environmentally responsible insulation choice.
Celotex insulation boards are a cost-effective solution for improving the energy efficiency of a building and ensuring it meets fire and sound reduction requirements. Whether you are building a new construction or renovating an existing structure, Celotex insulation boards are a reliable and efficient insulation choice.