Insulation prices compared

Roll, slab and board insulation for walls, floors and roofs, with the common thicknesses builders ask for day to day.

54 lines · sample trade prices (ex VAT), checked 19 September 2026.

  • Acoustic Insulation Slab 50mm (Pack of 12)
    from £34.00per pack
  • Acoustic Mineral Wool Slab 100mm (4.32m2)
    from £38.00per pack
  • Acoustic Mineral Wool Slab 100mm (Pack)
    from £30.80per pack
  • Acoustic Mineral Wool Slab 150mm (Pack)
    from £36.40per pack
  • Acoustic Mineral Wool Slab 170mm (Pack)
    from £40.60per pack
  • Acoustic Mineral Wool Slab 200mm (Pack)
    from £46.20per pack
  • Breather Membrane 1.5m x 50m Roll
    from £62.00per roll
  • Breather Membrane 1m x 50m
    from £42.00per roll
  • Cavity Wall Batt 100mm (Pack)
    from £26.00per each
  • Cavity Wall Batt 1200 x 455 x 100mm (Pack)
    from £34.00per pack
  • Cavity Wall Batt 50mm (Pack)
    from £20.00per each
  • Damp Proof Membrane 1200g 4m x 25m
    from £78.00per roll
  • EPS Floor Insulation 2400 x 1200 x 70mm
    from £18.00per sheet
  • EPS70 Floor Insulation 100mm 2400 x 1200mm
    from £24.00per sheet
  • EPS70 Floor Insulation 25mm 2400 x 1200mm
    from £9.00per sheet
  • EPS70 Floor Insulation 50mm 2400 x 1200mm
    from £14.00per sheet
  • EPS70 Floor Insulation 75mm 2400 x 1200mm
    from £19.00per sheet
  • Foil Insulation Tape 50mm x 45m
    from £7.50per roll
  • Foil Insulation Tape 75mm x 45m
    from £7.90per roll
  • Insulated Cavity Closer 100mm x 2.4m
    from £12.50per each
  • Insulation Fixing Washers (Pack of 100)
    from £12.50per pack
  • Loft Insulation Roll 100mm x 8.3m
    from £22.00per roll
  • Loft Insulation Roll 150mm x 8.3m
    from £26.00per roll
  • Loft Insulation Roll 170mm x 8.3m
    from £29.00per roll
  • Loft Insulation Roll 200mm x 8.3m
    from £33.00per roll
  • Loft Roll Insulation 170mm x 8m
    from £26.00per roll
  • Mineral Wool Loft Roll 100mm (8.3m2)
    from £24.00per roll
  • Mineral Wool Loft Roll 150mm (6.0m2)
    from £30.00per roll
  • Multifoil Insulation 1.5m x 10m
    from £64.00per roll
  • Multifoil Insulation 1.5m x 10m Roll
    from £89.00per roll
  • Party Wall Insulation Roll 50mm
    from £28.00per each
  • Pipe Lagging 22mm x 2m (Pack of 5)
    from £8.50per each
  • PIR Insulation Board 100mm 2400 x 1200mm
    from £64.00per sheet
  • PIR Insulation Board 120mm 2400 x 1200mm
    from £76.00per sheet
  • PIR Insulation Board 150mm 2400 x 1200
    from £68.00per sheet
  • PIR Insulation Board 150mm 2400 x 1200mm
    from £92.00per sheet
  • PIR Insulation Board 2400 x 1200 x 100mm
    from £42.00per sheet
  • PIR Insulation Board 2400 x 1200 x 50mm
    from £26.00per sheet
  • PIR Insulation Board 2400 x 1200 x 75mm
    from £42.00per sheet
  • PIR Insulation Board 25mm 2400 x 1200
    from £18.00per sheet
  • PIR Insulation Board 25mm 2400 x 1200mm
    from £22.00per sheet
  • PIR Insulation Board 30mm 2400 x 1200mm
    from £25.00per sheet
  • PIR Insulation Board 35mm 2400 x 1200mm
    from £27.00per sheet
  • PIR Insulation Board 40mm 2400 x 1200mm
    from £30.00per sheet
  • PIR Insulation Board 50mm 2400 x 1200mm
    from £35.00per sheet
  • PIR Insulation Board 55mm 2400 x 1200mm
    from £38.00per sheet
  • PIR Insulation Board 60mm 2400 x 1200mm
    from £41.00per sheet
  • PIR Insulation Board 70mm 2400 x 1200mm
    from £47.00per sheet
  • PIR Insulation Board 75mm 2400 x 1200mm
    from £50.00per sheet
  • PIR Insulation Board 90mm 2400 x 1200mm
    from £58.00per sheet
  • Underfloor Insulation Board 70mm 1200 x 450mm
    from £14.50per each
  • Vapour Control Layer 2.5m x 20m
    from £16.00per roll
  • Vapour Control Layer 2.7m x 20m
    from £38.00per roll
  • XPS Floor Insulation 50mm 1250 x 600 (Pack of 10)
    from £42.00per pack

Prices are sample figures based on published UK merchant rates, adjusted per merchant, and are indicative only — not a quote. Always confirm stock and final rates with your branch before ordering.

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