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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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Kingspan Kooltherm K5 70mm External Wall Insulation Board
External Wall EWI BoardPack Length: 1200mmPack Width: 600mmPack coverage: 0.72m2Thickness: 70mmQuantity: 1 Sheet
Last known price:£27.14 Inc VAT (£22.62 ex VAT)
60mm Kingspan Kooltherm K5 External Wall Insulation Board
External Wall EWI BoardPack Length: 1200mmPack Width: 600mmPack coverage: 0.72m2Thickness: 60mmQuantity: 1 Sheet
Last known price:£24.84 Inc VAT (£20.70 ex VAT)
Kingspan Kooltherm K5 50mm External Wall Insulation Board
External Wall EWI BoardPack Length: 1200mmPack Width: 600mmPack coverage: 0.72m2Thickness: 50mmQuantity: 1 Sheet
Last known price:£20.54 Inc VAT (£17.12 ex VAT)
25mm Kingspan Kooltherm K5 External Wall Board
External Wall EWI BoardPack Length: 1200mmPack Width: 600mmPack coverage: 0.72m2Thickness: 25mmQuantity: 1 Sheet
Last known price:£14.39 Inc VAT (£11.99 ex VAT)
140mm Recticel Eurowall Plus Cavity Insulation
High performance PIR insulationPack Length: 9520mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 140mmQuantity: Pack Of 8
£ 213.42 Inc VAT (£177.85 ex VAT)
115mm Recticel Eurowall Plus Cavity Board
High performance PIR insulationPack Length: 9520mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 115mmQuantity: Pack Of 8
£ 157.68 Inc VAT (£131.40 ex VAT)
90mm Recticel Eurowall Plus Cavity Wall Boards
High performance PIR insulationPack Length: 11900mmPack Width: 4500mmPack coverage: 5.40m2Thickness: 90mmQuantity: Pack Of 10
£ 157.68 Inc VAT (£131.40 ex VAT)
100mm Recticel Eurowall Partial Fill Cavity Wall Insulation
Thermal PIR insulation boardPack Length: 12000mmPack Width: 4500mmPack coverage: 5.40m2Thickness: 100mmQuantity: Pack Of 10
£ 146.92 Inc VAT (£122.43 ex VAT)
90mm Recticel Eurowall Partial Fill Cavity Insulation
Thermal PIR insulation boardPack Length: 12000mmPack Width: 4500mmPack coverage: 5.40m2Thickness: 90mmQuantity: Pack Of 10
£ 130.24 Inc VAT (£108.53 ex VAT)
80mm Recticel Eurowall Partial Fill Cavity Wall Insulation
Thermal PIR insulation boardPack Length: 14400mmPack Width: 5400mmPack coverage: 6.48m2Thickness: 80mmQuantity: Pack Of 12
£ 126.00 Inc VAT (£105.00 ex VAT)
75mm Recticel Eurowall Partial Fill Cavity Wall
Thermal PIR insulation boardPack Length: 14400mmPack Width: 5400mmPack coverage: 6.48m2Thickness: 75mmQuantity: Pack Of 12
£ 119.06 Inc VAT (£99.22 ex VAT)
70mm Recticel Eurowall Partial Fill Cavity Insulation
Thermal PIR insulation boardPack Length: 16800mmPack Width: 6300mmPack coverage: 7.56m2Thickness: 70mmQuantity: Pack Of 14
£ 143.16 Inc VAT (£119.30 ex VAT)
60mm Recticel Eurowall Partial Fill Cavity Wall
Thermal PIR insulation boardPack Length: 19200mmPack Width: 7200mmPack coverage: 8.64m2Thickness: 60mmQuantity: Pack Of 16
£ 135.59 Inc VAT (£112.99 ex VAT)
50mm Recticel Eurowall Partial Fill Cavity Insulation
Thermal PIR insulation boardPack Length: 24000mmPack Width: 9000mmPack coverage: 10.80m2Thickness: 50mmQuantity: Pack Of 20
£ 152.35 Inc VAT (£126.96 ex VAT)
Unilin 122.5mm Fire Insulated Plasterboard XT/TL-FR
Fire Rated Insulated PlasterboardPack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 122.5mmQuantity: 1 Sheet
Last known price:£87.32 Inc VAT (£72.77 ex VAT)
112.5mm Unilin Fire Insulated Plasterboard
Fire Rated Insulated PlasterboardPack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 112.5mmQuantity: 1 Sheet
Last known price:£87.32 Inc VAT (£72.77 ex VAT)
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