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Insulation

Find insulation materials for a wide range of UK building and refurbishment projects. Whether you are insulating a roof, floor, cavity wall or external wall, explore different insulation types from established manufacturers to find products suited to your application.

Shop Insulation by Type PIR insulation boards: Rigid boards commonly used in roofs, walls and floors where efficient thermal performance is important. Mineral wool insulation: Glass and stone wool products for thermal and acoustic insulation across suitable building applications. XPS and EPS insulation: Rigid polystyrene insulation products available in different grades for specified construction requirements. Insulation rolls and slabs: Flexible rolls and rigid slabs for suitable roof, wall, ceiling and partition systems. Multifoil insulation: Reflective insulation products designed for use in compatible building assemblies. Natural insulation: Fibre-based insulation options for projects with particular material preferences. Choose Insulation for Your Project

The right insulation depends on where it will be installed, the required thermal performance, available space, moisture conditions and the construction system. Always check the manufacturer's technical datasheet and installation guidance before selecting a product.

Browse our insulation range to compare specifications, thicknesses and pack coverage. Trade customers can contact our team for product guidance and quantity quotations.

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£ 4.21
£ 2044.97
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1343 products
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50mm Soprema SOPRATHERM CW4050 PIR Board
Rigid polyisocyanurate (PIR) insulation boardPack Length: 13200mmPack Width: 4950mmPack coverage: 5.9m2Thickness: 50mmQuantity: 11 Sheets
£ 94.20 Inc VAT (£78.50 ex VAT)
40mm Soprema SOPRATHERM CW4040 PIR Board
Rigid polyisocyanurate (PIR) insulation boardPack Length: 16800mmPack Width: 6300mmPack coverage: 7.56m2Thickness: 40mmQuantity: 14
Last known price:£105.29 Inc VAT (£87.74 ex VAT)
ThermaFleece UltraWool 90mm Flexible Slab
British Sheep Wool InsulationPack Length: 14400mmPack Width: 7080mmPack coverage: 8.50m2Thickness: 90mmQuantity: 12Width: 590mm
Last known price:£127.58 Inc VAT (£106.32 ex VAT)
ThermaFleece UltraWool 70mm Flexible Slab
British Sheep Wool InsulationPack Length: 16800mmPack Width: 8260mmPack coverage: 9.91m2Thickness: 70mmQuantity: 14Width: 590mm
Last known price:£127.58 Inc VAT (£106.32 ex VAT)
Thermafleece UltraWool 90mm Flexible Slab
British Sheep Wool InsulationPack Length: 21600mmPack Width: 7020mmPack coverage: 8.42m2Thickness: 90mmWidth: 390mm
Last known price:£156.94 Inc VAT (£130.78 ex VAT)
ThermaFleece UltraWool 70mm Flexible Slab
British Sheep Wool InsulationPack Length: 25200mmPack Width: 8190mmPack coverage: 9.83m2Thickness: 70mmWidth: 390mm
Last known price:£156.94 Inc VAT (£130.78 ex VAT)
ThermaFleece CosyWool 140mm Flexible Slab
British Sheep Wool InsulationPack Length: 6000mmPack Width: 2850mmPack coverage: 3.42m2Thickness: 140mmQuantity: 5 SheetsWidth: 570mm
Last known price:£50.41 Inc VAT (£42.01 ex VAT)
ThermaFleece CosyWool 100mm Slab 570mm
British Sheep Wool InsulationPack Length: 8400mmPack Width: 3990mmPack coverage: 4.79m2Thickness: 100mmQuantity: 7 SheetsWidth: 570mm
Last known price:£50.41 Inc VAT (£42.01 ex VAT)
ThermaFleece CosyWool 75mm Slab 570mm
British Sheep Wool InsulationPack Length: 10800mmPack Width: 5130mmPack coverage: 6.16m2Thickness: 75mmQuantity: 9 SheetsWidth: 570mm
Last known price:£50.41 Inc VAT (£42.01 ex VAT)
ThermaFleece CosyWool 140mm Flexible Slab
British Sheep Wool InsulationPack Length: 6000mmPack Width: 1850mmPack coverage: 2.22m2Thickness: 140mmQuantity: 5 SheetsWidth: 370mm
Last known price:£36.30 Inc VAT (£30.25 ex VAT)
ThermaFleece CosyWool 100mm Flexible Slab
British Sheep Wool InsulationPack Length: 8400mmPack Width: 2590mmPack coverage: 3.11m2Thickness: 100mmQuantity: 7 SheetsWidth: 370mm
Last known price:£36.30 Inc VAT (£30.25 ex VAT)
75mm ThermaFleece CosyWool Slab 370mm
British Sheep Wool InsulationPack Length: 10800mmPack Width: 3330mmPack coverage: 4m2Thickness: 75mmQuantity: 9 SheetsWidth: 370mm
Last known price:£36.30 Inc VAT (£30.25 ex VAT)
150mm Thermafleece CosyWool Wool Roll 570mm
British Sheep Wool InsulationPack Length: 4.3mPack Width: 570mmPack coverage: 4.90m2Thickness: 150mmQuantity: 1 rollWidth: 570mm
Last known price:£27.96 Inc VAT (£23.30 ex VAT)
140mm Thermafleece CosyWool Wool Roll 570mm
British Sheep Wool InsulationPack Length: 4.6mPack Width: 570mmPack coverage: 5.24m2Thickness: 140mmQuantity: 1 rollWidth: 570mm
Last known price:£27.96 Inc VAT (£23.30 ex VAT)
Thermafleece CosyWool 100mm Loft Insulation Roll
British Sheep Wool InsulationPack Length: 6.5mPack Width: 570mmPack coverage: 7.41m2Thickness: 100mmQuantity: 1 rollWidth: 570mm
Last known price:£27.96 Inc VAT (£23.30 ex VAT)
75mm ThermaFleece CosyWool Loft Insulation Roll
British Sheep Wool InsulationPack Length: 8.5mPack Width: 570mmPack coverage: 9.69m2Thickness: 75mmQuantity: 1 rollWidth: 570mm
Last known price:£27.96 Inc VAT (£23.30 ex VAT)
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