Floor

Products for floor insulation projects

Our insulation is tailored to fit the diverse sizes and widths of floor joists found in British homes, ensuring every building's needs are met.

Designed for easy installation, our floor insulation fits seamlessly beneath flooring, providing exceptional thermal protection and sound-dampening properties.

Transform a home's comfort and energy efficiency with our range of floor insulation. 

Floor

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Insulating Ground Floors

To undertake a ground floor thermal insulation upgrade it is first important to establish if it is possible or not. In domestic buildings, broadly speaking, there are two styles of floor type - solid ground floor and suspended floor, each with its pros and cons.

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Showing 144 of 144 products
  • 60mm Superglass Multi Acoustic Roll | Insulation Merchant

    5.0

    MULTI ACOUSTIC ROLL by Superglass

    60mm Superglass Multi Acoustic Roll

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  • 25mm PIR Insulation Board | Insulation Merchant

    5.0

    ULTIMATE by Insulation Merchant

    25mm PIR Insulation Board

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  • 100mm Thermafleece Supasoft Insulation (2 x 590mm rolls) - 5.90m² | Insulation Merchant

    5.0

    SUPASOFT by Thermafleece

    100mm Thermafleece Supasoft Insulation (2 x 590mm rolls) - 5.90m²

    £65.41 per item
    £11.09 per m²
    inc. VAT
    £54.51 per item
    £9.24 per m²
    ex. VAT
    Save £-65.41
    £65.41 per item
    £11.09 per m²
    inc. VAT
    £0.00 Save £-54.51
    £54.51 per item
    £9.24 per m²
    ex. VAT
  • 100mm PIR Insulation Board - 1200mm x 2400mm | Insulation Merchant
    ULTIMATE by Insulation Merchant

    100mm PIR Insulation Board - 1200mm x 2400mm

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    Add to a quote for our best rate.

  • 170mm Knauf Loft Roll 44 (Combi-Cut) | Insulation Merchant
    Top Deals
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    LOFT ROLL by Knauf Insulation

    170mm Knauf Loft Roll 44 (Combi-Cut)

    £48.56 per item
    £6.06 per m²
    inc. VAT
    £40.47 per item
    £5.05 per m²
    ex. VAT
    Save £-48.56
    £48.56 per item
    £6.06 per m²
    inc. VAT
    £0.00 Save £-40.47
    £40.47 per item
    £5.05 per m²
    ex. VAT
  • 100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    COSYWOOL by Thermafleece

    25mm Thermafleece CosyWool Sheep Wool (1 x 370mm roll)

    £25.20 per item
    £5.68 per m²
    inc. VAT
    £21.00 per item
    £4.73 per m²
    ex. VAT
    £22.50 Save £-2.70
    £25.20 per item
    £5.68 per m²
    inc. VAT
    £18.75 Save £-2.25
    £21.00 per item
    £4.73 per m²
    ex. VAT
  • 100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    COSYWOOL by Thermafleece

    25mm Thermafleece CosyWool Sheep Wool (1 x 570mm roll)

    £38.81 per item
    £5.67 per m²
    inc. VAT
    £32.34 per item
    £4.73 per m²
    ex. VAT
    £34.65 Save £-4.16
    £38.81 per item
    £5.67 per m²
    inc. VAT
    £28.88 Save £-3.47
    £32.34 per item
    £4.73 per m²
    ex. VAT
  • 100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant

    5.0

    COSYWOOL ROLL by Thermafleece

    Thermafleece CosyWool Sheep Wool Roll Insulation - 400 & 300mm

    £117.10 per item
    £15.01 per m²
    inc. VAT
    £97.58 per item
    £12.51 per m²
    ex. VAT
    Save £-117.10
    £117.10 per item
    £15.01 per m²
    inc. VAT
    £0.00 Save £-97.58
    £97.58 per item
    £12.51 per m²
    ex. VAT
  • 40mm PIR Insulation Board | Insulation Merchant
    ULTIMATE by Insulation Merchant

    40mm PIR Insulation Board

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  • 200mm Knauf Loft Roll 44 (Combi-Cut) - PALLET OF 12 | Insulation Merchant
    Top Deals
    Free Shipping
    LOFT ROLL by Knauf Insulation

    200mm Knauf Loft Roll 44 (Combi-Cut) - PALLET OF 12

    £462.06 per item
    £5.63 per m²
    inc. VAT
    £385.05 per item
    £4.69 per m²
    ex. VAT
    Save £-462.06
    £462.06 per item
    £5.63 per m²
    inc. VAT
    £0.00 Save £-385.05
    £385.05 per item
    £4.69 per m²
    ex. VAT
  • 15mm Unilin (Xtratherm) Thin-R PIR Board - per board | Insulation Merchant
    THIN-R PIR BOARD by Unilin

    15mm Unilin (Xtratherm) Thin-R PIR Board - per board

    £22.97 per item
    £7.98 per m²
    inc. VAT
    £19.14 per item
    £6.65 per m²
    ex. VAT
    Save £-22.97
    £22.97 per item
    £7.98 per m²
    inc. VAT
    £0.00 Save £-19.14
    £19.14 per item
    £6.65 per m²
    ex. VAT
  • 50mm PIR Insulation Board | Insulation Merchant
    PIR BOARD by Insulation Merchant

    50mm PIR Insulation Board

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  • 80mm Superglass Multi Acoustic Roll | Insulation Merchant
    MULTI ACOUSTIC ROLL by Superglass

    80mm Superglass Multi Acoustic Roll

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  • Breedon Quietex Crushed Limestone Chips - 20kg bag | Insulation Merchant
    Sale 9%
    QUIETEX by Breedon

    Breedon Quietex Crushed Limestone Chips - 20kg bag

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  • Foam Glass Aggregate/Gravel - All Sizes
    Sale 25%
    Spring Savings
    AGGREGATE by Foamed Glass UK

    Foam Glass Aggregate/Gravel - All Sizes

    From £89.60 per item
    £149.33 per m³
    inc. VAT
    From £74.67 per item
    £124.44 per m³
    ex. VAT
    £119.90 Save £30.30
    From £89.60 per item
    £149.33 per m³
    inc. VAT
    £99.92 Save £25.25
    From £74.67 per item
    £124.44 per m³
    ex. VAT
  • 100mm Superglass Multi Acoustic Roll | Insulation Merchant
    MULTI ACOUSTIC ROLL by Superglass

    100mm Superglass Multi Acoustic Roll

    £52.90 per item
    £4.36 per m²
    inc. VAT
    £44.08 per item
    £3.64 per m²
    ex. VAT
    Save £-52.90
    £52.90 per item
    £4.36 per m²
    inc. VAT
    £0.00 Save £-44.08
    £44.08 per item
    £3.64 per m²
    ex. VAT
  • 75mm PIR Insulation Board - 1200mm x 2400mm | Insulation Merchant
    ULTIMATE by Insulation Merchant

    75mm PIR Insulation Board - 1200mm x 2400mm

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    Add to a quote for our best rate.

  • 90mm PIR Insulation Board (2400mm x 1200mm) | Insulation Merchant
    ULTIMATE by Insulation Merchant

    90mm PIR Insulation Board (2400mm x 1200mm)

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    Add to a quote for our best rate.

  • 140mm PIR Insulation Board | Insulation Merchant

    5.0

    ULTIMATE by Insulation Merchant

    140mm PIR Insulation Board

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    Add to a quote for our best rate.

  • 50mm Thermafleece Supasoft Roll (2 x 590mm rolls) | Insulation Merchant
    SUPASOFT by Thermafleece

    50mm Thermafleece Supasoft Roll (2 x 590mm rolls)

    £65.41 per item
    £5.54 per m²
    inc. VAT
    £54.51 per item
    £4.62 per m²
    ex. VAT
    Save £-65.41
    £65.41 per item
    £5.54 per m²
    inc. VAT
    £0.00 Save £-54.51
    £54.51 per item
    £4.62 per m²
    ex. VAT