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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Sisalwool

Sisalwool

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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
  • 75mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant

    5.0

    COSYWOOL by Thermafleece

    75mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    £109.09 per item
    £11.26 per m²
    inc. VAT
    £90.91 per item
    £9.38 per m²
    ex. VAT
    Save £-109.09
    £109.09 per item
    £11.26 per m²
    inc. VAT
    £0.00 Save £-90.91
    £90.91 per item
    £9.38 per m²
    ex. VAT
  • 140mm STEICO Flex 036 - 575mm x 1190mm (2.737m² / 4 per pack) | Insulation Merchant
    Sale 10%
    FLEX by Steico

    140mm STEICO Flex 036 - 575mm x 1190mm (2.737m² / 4 per pack)

    £61.55 per item
    £22.49 per m²
    inc. VAT
    £51.29 per item
    £18.74 per m²
    ex. VAT
    £68.39 Save £6.84
    £61.55 per item
    £22.49 per m²
    inc. VAT
    £56.99 Save £5.70
    £51.29 per item
    £18.74 per m²
    ex. VAT
  • 80mm STEICO Flex 036 - 575mm x 1190mm (6 per pack) | Insulation Merchant
    Sale 9%
    FLEX by Steico

    80mm STEICO Flex 036 - 575mm x 1190mm (6 per pack)

    £52.07 per item
    £12.68 per m²
    inc. VAT
    £43.39 per item
    £10.57 per m²
    ex. VAT
    £57.27 Save £5.20
    £52.07 per item
    £12.68 per m²
    inc. VAT
    £47.73 Save £4.33
    £43.39 per item
    £10.57 per m²
    ex. VAT
  • 140mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant

    5.0

    COSYWOOL by Thermafleece

    140mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls)

    £107.63 per item
    £21.06 per m²
    inc. VAT
    £89.69 per item
    £17.55 per m²
    ex. VAT
    Save £-107.63
    £107.63 per item
    £21.06 per m²
    inc. VAT
    £0.00 Save £-89.69
    £89.69 per item
    £17.55 per m²
    ex. VAT
  • 20mm STEICO Therm SD (wet) - 600mm x 1350mm - per board | Insulation Merchant
    New
    THERM SD (WET) by Steico

    STEICO Therm SD (wet)

    From £5.62 per item
    £6.94 per m²
    inc. VAT
    From £4.68 per item
    £5.78 per m²
    ex. VAT
    £5.04 Save £-0.58
    From £5.62 per item
    £6.94 per m²
    inc. VAT
    £4.20 Save £-0.48
    From £4.68 per item
    £5.78 per m²
    ex. VAT
  • 140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m² / 4 per pack)

    5.0

    INDITHERM HEMP - 370 by IndiNature®

    140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m² / 4 per pack)

    £48.22 per item
    £27.09 per m²
    inc. VAT
    £40.18 per item
    £22.57 per m²
    ex. VAT
    Save £-48.22
    £48.22 per item
    £27.09 per m²
    inc. VAT
    £0.00 Save £-40.18
    £40.18 per item
    £22.57 per m²
    ex. VAT
  • STEICOmulti UDB Membrane - 50m x 1.5m | Insulation Merchant
    MULTI UDB by Steico

    STEICO Multi UDB Membrane - 50m x 1.5m

    £254.00 per item
    £3.38 per m²
    inc. VAT
    £211.67 per item
    £2.82 per m²
    ex. VAT
    Save £-254.00
    £254.00 per item
    £3.38 per m²
    inc. VAT
    £0.00 Save £-211.67
    £211.67 per item
    £2.82 per m²
    ex. VAT
  • 60mm STEICO Flex 036 - 575mm x 1190mm (5.474m² / 8 per pack) | Insulation Merchant
    Sale 8%
    FLEX by Steico

    60mm STEICO Flex 036 - 575mm x 1190mm (5.474m² / 8 per pack)

    £50.79 per item
    £9.28 per m²
    inc. VAT
    £42.33 per item
    £7.73 per m²
    ex. VAT
    £55.44 Save £4.65
    £50.79 per item
    £9.28 per m²
    inc. VAT
    £46.20 Save £3.88
    £42.33 per item
    £7.73 per m²
    ex. VAT
  • STEICO zell Air Injected/Loose Fill Wood Fibre Insulation - 15kg | Insulation Merchant
    Sale 9%
    ZELL by Steico

    STEICO zell Air Injected/Loose Fill Wood Fibre Insulation - 15kg

    £22.91 per item
    inc. VAT
    £19.09 per item
    ex. VAT
    £25.45 Save £2.54
    £22.91 per item
    inc. VAT
    £21.21 Save £2.12
    £19.09 per item
    ex. VAT
  • 100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (2.11m² / 4 per pack)

    5.0

    INDITHERM HEMP - 440 by IndiNature®

    100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (2.11m² / 4 per pack)

    £40.95 per item
    £19.41 per m²
    inc. VAT
    £34.13 per item
    £16.17 per m²
    ex. VAT
    Save £-40.95
    £40.95 per item
    £19.41 per m²
    inc. VAT
    £0.00 Save £-34.13
    £34.13 per item
    £16.17 per m²
    ex. VAT
  • 140mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    COSYWOOL by Thermafleece

    140mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    £110.32 per item
    £21.05 per m²
    inc. VAT
    £91.93 per item
    £17.54 per m²
    ex. VAT
    Save £-110.32
    £110.32 per item
    £21.05 per m²
    inc. VAT
    £0.00 Save £-91.93
    £91.93 per item
    £17.54 per m²
    ex. VAT
  • 50m x 1.5m Thermafleece Breather Membrane (75m²) | Insulation Merchant
    BREATHER MEMBRANE by Thermafleece

    Thermafleece Breather Membrane

    From £83.89 per item
    £1.11 per m²
    inc. VAT
    From £69.91 per item
    £0.93 per m²
    ex. VAT
    Save £-83.89
    From £83.89 per item
    £1.11 per m²
    inc. VAT
    £0.00 Save £-69.91
    From £69.91 per item
    £0.93 per m²
    ex. VAT
  • 120mm STEICO Flex 036 - 575mm x 1190mm (2.73m² / 4 per pack) | Insulation Merchant
    Sale 10%
    FLEX by Steico

    120mm STEICO Flex 036 - 575mm x 1190mm (2.73m² / 4 per pack)

    £52.28 per item
    £19.10 per m²
    inc. VAT
    £43.57 per item
    £15.92 per m²
    ex. VAT
    £58.09 Save £5.81
    £52.28 per item
    £19.10 per m²
    inc. VAT
    £48.41 Save £4.84
    £43.57 per item
    £15.92 per m²
    ex. VAT
  • 60mm STEICO Therm (wet) - 600mm x 1350mm - per board | Insulation Merchant
    THERM (WET) by Steico

    60mm STEICO Therm (wet) - 600mm x 1350mm - per board

    This product is not available.

    Enquire for more information and advice.

  • 140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (2.11m² / 4 per pack)
    INDITHERM HEMP - 440 by IndiNature®

    140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (2.11m² / 4 per pack)

    £57.35 per item
    £27.18 per m²
    inc. VAT
    £47.79 per item
    £22.65 per m²
    ex. VAT
    Save £-57.35
    £57.35 per item
    £27.18 per m²
    inc. VAT
    £0.00 Save £-47.79
    £47.79 per item
    £22.65 per m²
    ex. VAT
  • STEICOmulti Membra 5 Vapour Control Layer - 50m x 1.5m | Insulation Merchant
    MULTI MEMBRA 5 by Steico

    STEICOmulti Membra 5 Vapour Control Layer - 50m x 1.5m

    £192.38 per item
    £2.56 per m²
    inc. VAT
    £160.32 per item
    £2.14 per m²
    ex. VAT
    Save £-192.38
    £192.38 per item
    £2.56 per m²
    inc. VAT
    £0.00 Save £-160.32
    £160.32 per item
    £2.14 per m²
    ex. VAT
  • 140mm STEICO Flex 036 - 375mm x 1190mm (1.785m² / 4 per pack) | Insulation Merchant
    Sale 9%
    FLEX by Steico

    140mm STEICO Flex 036 - 375mm x 1190mm (1.785m² / 4 per pack)

    £40.97 per item
    £22.95 per m²
    inc. VAT
    £34.14 per item
    £19.13 per m²
    ex. VAT
    £45.52 Save £4.55
    £40.97 per item
    £22.95 per m²
    inc. VAT
    £37.93 Save £3.79
    £34.14 per item
    £19.13 per m²
    ex. VAT
  • 140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (2.74m² / 4 per pack)
    INDITHERM HEMP - 570 by IndiNature®

    140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (2.74m² / 4 per pack)

    £74.28 per item
    £27.11 per m²
    inc. VAT
    £61.90 per item
    £22.59 per m²
    ex. VAT
    Save £-74.28
    £74.28 per item
    £27.11 per m²
    inc. VAT
    £0.00 Save £-61.90
    £61.90 per item
    £22.59 per m²
    ex. VAT
  • 60mm STEICOduo Dry - 600mm x 2230mm | Insulation Merchant
    DUO DRY by Steico

    60mm STEICOduo Dry - 600mm x 2230mm

    This product is not available.

    Enquire for more information and advice.

  • STEICO Multi Tape F - 25m x 60mm | Insulation Merchant
    MULTI TAPE F by Steico

    STEICO Multi Tape F - 25m x 60mm

    £29.17 per item
    £1.16 per LM (linear metre)
    inc. VAT
    £24.31 per item
    £0.97 per LM (linear metre)
    ex. VAT
    Save £-29.17
    £29.17 per item
    £1.16 per LM (linear metre)
    inc. VAT
    £0.00 Save £-24.31
    £24.31 per item
    £0.97 per LM (linear metre)
    ex. VAT