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Wall Insulation

Shop wall insulation materials for new builds, extensions, refurbishment projects and commercial construction. Our range includes PIR insulation boards, insulated plasterboard, mineral wool slabs, cavity wall insulation and external wall insulation systems from leading manufacturers.

Shop Wall Insulation by Application

  1. Internal wall insulation: Improve the thermal performance of existing walls using suitable insulation boards or insulated plasterboard systems.
  2. External wall insulation: Explore insulation boards and system components designed for compatible external wall insulation and render systems.
  3. Cavity wall insulation: Find insulation products for suitable full-fill and partial-fill masonry cavity wall constructions.
  4. Timber and steel frame insulation: Browse insulation boards, slabs and rolls designed for compatible framed wall systems.
  5. Partition wall insulation: Choose suitable insulation products for thermal and acoustic performance in internal partitions.

Choose the Right Wall Insulation

The best wall insulation depends on the wall construction, available installation space, required thermal performance and project specification. PIR boards offer high thermal resistance for their thickness, while mineral wool products can provide thermal and acoustic insulation. Insulated plasterboard combines insulation with a plasterboard lining, helping simplify certain internal drylining applications.

Before choosing a product, check the manufacturer's technical datasheet, required thickness, fire performance and compatibility with the proposed wall system.

Browse our wall insulation range to compare products, specifications and pack coverage. Trade customers can contact our team for help with product selection and quantity quotations.

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£ 4.21
£ 2044.97
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1129 products
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Wood Fibre Internal Wall Insulation with Lime Plaster
Internal Wall Insulation System
Last known price:£26.40 Inc VAT (£22.00 ex VAT)
60mm Steico Woodfibre Render Board 2230x600
Insulating sarking, sheathing and render boardPack Length: 2230mmPack Width: 600mmPack coverage: 1.34m2Thickness: 60mm
Last known price:£17.52 Inc VAT (£14.60 ex VAT)
40mm Steico Woodfibre Render Board 2230x600
Insulating sarking, sheathing and render boardPack Length: 2230mmPack Width: 600mmPack coverage: 1.34m2Thickness: 40mm
Last known price:£16.80 Inc VAT (£14.00 ex VAT)
40mm Steico Universal Dry Wood Fibre Render Board
Insulating sarking, sheathing and render boardPack Length: 1880mmPack Width: 600mmPack coverage: 1.07m2Thickness: 40mm
Last known price:£15.96 Inc VAT (£13.30 ex VAT)
Steico Special Dry 60mm Sheathing Render Board
Insulating sheathing and render boardPack Length: 1880mmPack Width: 600mmPack coverage: 1.13m2Thickness: 60mmQuantity: 1 Sheet
Last known price:£20.44 Inc VAT (£17.03 ex VAT)
20mm Steico Internal Wood Fibre Board
Wood fibre insulation boardPack Length: 1350mmPack Width: 600mmPack coverage: 0.81m2Thickness: 20mmQuantity: 1 Sheet
Last known price:£5.05 Inc VAT (£4.21 ex VAT)
120mm Kingspan Kooltherm K15 Rainscreen Board
PIR rigid thermoset phenolic insulationPack Length: 7200mmPack Width: 3600mmPack coverage: 8.64m2Thickness: 120mmPack of: 3
Last known price:£418.60 Inc VAT (£348.83 ex VAT)
90mm Kingspan Kooltherm K15 Rainscreen Board
PIR rigid thermoset phenolic insulationPack Length: 7200mmPack Width: 3600mmPack coverage: 8.64m2Thickness: 90mmPack of: 3
Last known price:£418.60 Inc VAT (£348.83 ex VAT)
100mm Kingspan Kooltherm K15 Rainscreen Board
PIR rigid thermoset phenolic insulationPack Length: 7200mmPack Width: 3600mmPack coverage: 8.64m2Thickness: 100mmPack of: 3
Last known price:£418.60 Inc VAT (£348.83 ex VAT)
80mm Kingspan Kooltherm K15 Rainscreen Board
PIR rigid thermoset phenolic insulationPack Length: 9600mmPack Width: 4800mmPack coverage: 11.52m2Thickness: 80mmPack of: 4
Last known price:£418.60 Inc VAT (£348.83 ex VAT)
70mm Kingspan Kooltherm K15 Rainscreen Board
PIR rigid thermoset phenolic insulationPack Length: 9600mmPack Width: 4800mmPack coverage: 11.52m2Thickness: 70mmPack of: 4
Last known price:£418.60 Inc VAT (£348.83 ex VAT)
60mm Kingspan Kooltherm K15 Rainscreen Board
PIR rigid thermoset phenolic insulationPack Length: 12000mmPack Width: 6000mmPack coverage: 14.40m2Thickness: 60mmPack of: 5
Last known price:£418.60 Inc VAT (£348.83 ex VAT)
Kingspan Thermawall TW50 100mm PIR Cavity Insulation
PIR cavity wall insulationPack Length: 6000mmPack Width: 2250mmPack coverage: 2.70m2Thickness: 100mmPack of: 5
Last known price:£198.72 Inc VAT (£165.60 ex VAT)
75mm Kingspan Thermawall TW50 Cavity Insulation
PIR cavity wall insulationPack Length: 7200mmPack Width: 2700mmPack coverage: 3.24m2Thickness: 75mmPack of: 6
Last known price:£198.72 Inc VAT (£165.60 ex VAT)
70mm Kingspan Thermawall TW50 Cavity Insulation
PIR cavity wall insulationPack Length: 7200mmPack Width: 2700mmPack coverage: 3.24m2Thickness: 70mmPack of: 6
Last known price:£198.72 Inc VAT (£165.60 ex VAT)
Steicoflex 036 90mm Wood Fibre Insulation 375mm
Flexible thermal insulation from wood fibrePack Length: 5950mmPack Width: 1875mmPack coverage: 2.23m2Thickness: 90mmQuantity: 5 Sheets
Last known price:£36.01 Inc VAT (£30.01 ex VAT)
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