Natural Insulation

Better for the environment, better for your house.

Shop our range of natural insulation options including wood fibre, hemp and sheep's wool from manufacturers Steico, IndiNature and Thermafleece.

Natural Insulation

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100mm STEICO Flex 036 - 575mm x 1190mm (4 per pack) | Insulation Merchant

Wood Fibre Insulation

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Hemp Insulation

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Sheep's Wool

Sheep's Wool

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CEWOOD Wood Wool Multi-purpose Board - Square Edge | Insulation Merchant

Wood Wool Boards

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Pro Clima Contega Solido SL80 (Internal Single-sIded Corner Adhesive Tape) - 80mm x 30m | Insulation Merchant

Sustainable Building

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Shush! A Guide to Acoustic Insulation

Ever wished you could turn down the volume on the world? Whether it's noisy neighbours, the kids practising their drums or the rumble of traffic, unwanted sound can be a real headache. That's where acoustic insulation comes in. This helpful guide will explore the ins and outs of soundproofing, from learning about sound waves to choosing the right materials for your project.

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Showing 113 of 113 products
  • 100mm STEICO Flex 036 - 575mm x 1190mm (4 per pack) | Insulation Merchant
    Sale 9%

    5.0

    FLEX by Steico

    100mm STEICO Flex 036 - 575mm x 1190mm (4 per pack)

    £42.97 per item
    £15.70 per m²
    inc. VAT
    £35.81 per item
    £13.08 per m²
    ex. VAT
    £47.74 Save £4.77
    £42.97 per item
    £15.70 per m²
    inc. VAT
    £39.78 Save £3.98
    £35.81 per item
    £13.08 per m²
    ex. VAT
  • 100mm STEICO Flex 036 - 375mm x 1190mm (4 per pack) | Insulation Merchant
    Sale 9%

    4.0

    FLEX by Steico

    100mm STEICO Flex 036 - 375mm x 1190mm (4 per pack)

    £29.29 per item
    £16.41 per m²
    inc. VAT
    £24.41 per item
    £13.67 per m²
    ex. VAT
    £32.19 Save £2.90
    £29.29 per item
    £16.41 per m²
    inc. VAT
    £26.83 Save £2.42
    £24.41 per item
    £13.67 per m²
    ex. VAT
  • 40mm STEICOduo Dry - 600mm x 2230mm | Insulation Merchant

    5.0

    DUO DRY by Steico

    40mm STEICOduo Dry - 600mm x 2230mm

    This product is not available.

    Enquire for more information and advice.

  • 40mm STEICO Therm (wet) - 600mm x 1350mm - per board | Insulation Merchant
    THERM (WET) by Steico

    40mm STEICO Therm (wet) - 600mm x 1350mm - per board

    This product is not available.

    Enquire for more information and advice.

  • 100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m² / 4 per pack)

    5.0

    INDITHERM HEMP - 370 by IndiNature®

    100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m² / 4 per pack)

    £34.42 per item
    £19.34 per m²
    inc. VAT
    £28.68 per item
    £16.11 per m²
    ex. VAT
    Save £-34.42
    £34.42 per item
    £19.34 per m²
    inc. VAT
    £0.00 Save £-28.68
    £28.68 per item
    £16.11 per m²
    ex. VAT
  • 100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (2.74m² / 4 per pack)

    5.0

    INDITHERM HEMP - 570 by IndiNature®

    100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (2.74m² / 4 per pack)

    £53.06 per item
    £19.36 per m²
    inc. VAT
    £44.22 per item
    £16.14 per m²
    ex. VAT
    Save £-53.06
    £53.06 per item
    £19.36 per m²
    inc. VAT
    £0.00 Save £-44.22
    £44.22 per item
    £16.14 per m²
    ex. VAT
  • 100mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant

    5.0

    COSYWOOL by Thermafleece

    100mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls)

    £108.42 per item
    £15.02 per m²
    inc. VAT
    £90.35 per item
    £12.51 per m²
    ex. VAT
    Save £-108.42
    £108.42 per item
    £15.02 per m²
    inc. VAT
    £0.00 Save £-90.35
    £90.35 per item
    £12.51 per m²
    ex. VAT
  • 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
  • 90mm Thermafleece UltraWool Slab (590mm wide) | Insulation Merchant
    ULTRAWOOL by Thermafleece

    90mm Thermafleece UltraWool Slab (590mm wide)

    £240.32 per item
    £28.27 per m²
    inc. VAT
    £200.27 per item
    £23.56 per m²
    ex. VAT
    Save £-240.32
    £240.32 per item
    £28.27 per m²
    inc. VAT
    £0.00 Save £-200.27
    £200.27 per item
    £23.56 per m²
    ex. VAT
  • 50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (3.55m² / 8 per pack)
    INDITHERM HEMP - 370 by IndiNature®

    50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (3.55m² / 8 per pack)

    £34.42 per item
    £9.70 per m²
    inc. VAT
    £28.68 per item
    £8.08 per m²
    ex. VAT
    Save £-34.42
    £34.42 per item
    £9.70 per m²
    inc. VAT
    £0.00 Save £-28.68
    £28.68 per item
    £8.08 per m²
    ex. VAT
  • 50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (5.47m² / 8 per pack)
    INDITHERM HEMP - 570 by IndiNature®

    50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (5.47m² / 8 per pack)

    £53.06 per item
    £9.70 per m²
    inc. VAT
    £44.22 per item
    £8.08 per m²
    ex. VAT
    Save £-53.06
    £53.06 per item
    £9.70 per m²
    inc. VAT
    £0.00 Save £-44.22
    £44.22 per item
    £8.08 per m²
    ex. VAT
  • 100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant

    5.0

    COSYWOOL by Thermafleece

    100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    £111.27 per item
    £15.02 per m²
    inc. VAT
    £92.73 per item
    £12.51 per m²
    ex. VAT
    Save £-111.27
    £111.27 per item
    £15.02 per m²
    inc. VAT
    £0.00 Save £-92.73
    £92.73 per item
    £12.51 per m²
    ex. VAT
  • 50mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant
    COSYWOOL by Thermafleece

    50mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls)

    £108.58 per item
    £7.52 per m²
    inc. VAT
    £90.48 per item
    £6.27 per m²
    ex. VAT
    Save £-108.58
    £108.58 per item
    £7.52 per m²
    inc. VAT
    £0.00 Save £-90.48
    £90.48 per item
    £6.27 per m²
    ex. VAT
  • 150mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant

    4.6

    COSYWOOL by Thermafleece

    150mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls)

    £107.51 per item
    £22.54 per m²
    inc. VAT
    £89.59 per item
    £18.78 per m²
    ex. VAT
    Save £-107.51
    £107.51 per item
    £22.54 per m²
    inc. VAT
    £0.00 Save £-89.59
    £89.59 per item
    £18.78 per m²
    ex. VAT
  • 50mm STEICO Flex 036 - 575mm x 1190mm (6.158m² per pack) | Insulation Merchant
    Sale 9%
    FLEX by Steico

    50mm STEICO Flex 036 - 575mm x 1190mm (6.158m² per pack)

    £49.36 per item
    £8.02 per m²
    inc. VAT
    £41.13 per item
    £6.68 per m²
    ex. VAT
    £54.84 Save £5.48
    £49.36 per item
    £8.02 per m²
    inc. VAT
    £45.70 Save £4.57
    £41.13 per item
    £6.68 per m²
    ex. VAT
  • 75mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant

    5.0

    COSYWOOL by Thermafleece

    75mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls)

    £106.29 per item
    £11.26 per m²
    inc. VAT
    £88.58 per item
    £9.38 per m²
    ex. VAT
    Save £-106.29
    £106.29 per item
    £11.26 per m²
    inc. VAT
    £0.00 Save £-88.58
    £88.58 per item
    £9.38 per m²
    ex. VAT
  • 40mm STEICO Flex 036 - 375mm x 1190mm (4.463m² / 10 per pack) | Insulation Merchant
    Sale 9%

    5.0

    FLEX by Steico

    40mm STEICO Flex 036 - 575mm x 1190mm (6.843m² / 10 per pack)

    £42.97 per item
    £6.28 per m²
    inc. VAT
    £35.81 per item
    £5.23 per m²
    ex. VAT
    £47.74 Save £4.77
    £42.97 per item
    £6.28 per m²
    inc. VAT
    £39.78 Save £3.98
    £35.81 per item
    £5.23 per m²
    ex. VAT
  • 150mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant

    5.0

    COSYWOOL by Thermafleece

    150mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    £110.43 per item
    £22.54 per m²
    inc. VAT
    £92.03 per item
    £18.78 per m²
    ex. VAT
    Save £-110.43
    £110.43 per item
    £22.54 per m²
    inc. VAT
    £0.00 Save £-92.03
    £92.03 per item
    £18.78 per m²
    ex. VAT
  • 50mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant

    5.0

    COSYWOOL by Thermafleece

    50mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    £111.50 per item
    £7.52 per m²
    inc. VAT
    £92.92 per item
    £6.27 per m²
    ex. VAT
    Save £-111.50
    £111.50 per item
    £7.52 per m²
    inc. VAT
    £0.00 Save £-92.92
    £92.92 per item
    £6.27 per m²
    ex. VAT
  • 50mm STEICO Flex 036 - 375mm x 1190mm (4.016m² / 9 per pack) | Insulation Merchant
    FLEX by Steico

    50mm STEICO Flex 036 - 375mm x 1190mm (4.016m² / 9 per pack)

    £36.00 per item
    £8.96 per m²
    inc. VAT
    £30.00 per item
    £7.47 per m²
    ex. VAT
    £32.73 Save £-3.27
    £36.00 per item
    £8.96 per m²
    inc. VAT
    £27.28 Save £-2.73
    £30.00 per item
    £7.47 per m²
    ex. VAT