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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  • 50mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant 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)

    £99.55 inc. VAT
    £6.72 per m²
    £82.96 ex. VAT
    £5.60 per m²
    £99.55 inc. VAT
    £6.72 per m²
    Save £-99.55
    £82.96 ex. VAT
    £5.60 per m²
    £0.00 Save £-82.96
  • 50mm STEICO Flex 036 - 375mm x 1190mm (4.016m² / 9 per pack) | Insulation Merchant 50mm STEICO Flex 036 - 375mm x 1190mm (4.016m² / 9 per pack) | Insulation Merchant
    Spring Savings
    FLEX by Steico

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

    £36.00 inc. VAT
    £8.96 per m²
    £30.00 ex. VAT
    £7.47 per m²
    £36.00 inc. VAT
    £8.96 per m²
    £32.73 Save £-3.27
    £30.00 ex. VAT
    £7.47 per m²
    £27.28 Save £-2.73
  • 75mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant 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)

    £97.40 inc. VAT
    £10.05 per m²
    £81.17 ex. VAT
    £8.38 per m²
    £97.40 inc. VAT
    £10.05 per m²
    Save £-97.40
    £81.17 ex. VAT
    £8.38 per m²
    £0.00 Save £-81.17
  • 140mm STEICO Flex 036 - 575mm x 1190mm (2.737m² / 4 per pack) | Insulation Merchant 140mm STEICO Flex 036 - 575mm x 1190mm (2.737m² / 4 per pack) | Insulation Merchant
    Sale 10%
    Spring Savings
    FLEX by Steico

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

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

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

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

    £96.10 inc. VAT
    £18.81 per m²
    £80.08 ex. VAT
    £15.67 per m²
    £96.10 inc. VAT
    £18.81 per m²
    Save £-96.10
    £80.08 ex. VAT
    £15.67 per m²
    £0.00 Save £-80.08
  • 20mm STEICO Therm SD (wet) - 600mm x 1350mm - per board | Insulation Merchant 20mm STEICO Therm SD (wet) - 600mm x 1350mm - per board | Insulation Merchant
    Sale 9%
    Spring Savings
    THERM SD WET by Steico

    20mm STEICO Therm SD (wet) - 600mm x 1350mm - per board

    £4.54 inc. VAT
    £5.60 per m²
    £3.78 ex. VAT
    £4.67 per m²
    £4.54 inc. VAT
    £5.60 per m²
    £5.04 Save £0.50
    £3.78 ex. VAT
    £4.67 per m²
    £4.20 Save £0.42
  • 140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m²) 140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m²)

    5.0

    INDITHERM HEMP - 370 by IndiNature®

    140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m²)

    £41.02 inc. VAT
    £23.04 per m²
    £34.18 ex. VAT
    £19.20 per m²
    £41.02 inc. VAT
    £23.04 per m²
    Save £-41.02
    £34.18 ex. VAT
    £19.20 per m²
    £0.00 Save £-34.18
  • STEICOmulti UDB Membrane - 50m x 1.5m | Insulation Merchant
    MULTI UDB by Steico

    STEICO Multi UDB Membrane - 50m x 1.5m

    £254.00 inc. VAT
    £3.38 per m²
    £211.67 ex. VAT
    £2.82 per m²
    £254.00 inc. VAT
    £3.38 per m²
    Save £-254.00
    £211.67 ex. VAT
    £2.82 per m²
    £0.00 Save £-211.67
  • 60mm STEICO Flex 036 - 575mm x 1190mm (5.474m² / 8 per pack) | Insulation Merchant 60mm STEICO Flex 036 - 575mm x 1190mm (5.474m² / 8 per pack) | Insulation Merchant
    Sale 9%
    Spring Savings
    FLEX by Steico

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

    £50.40 inc. VAT
    £9.21 per m²
    £42.00 ex. VAT
    £7.67 per m²
    £50.40 inc. VAT
    £9.21 per m²
    £55.44 Save £5.04
    £42.00 ex. VAT
    £7.67 per m²
    £46.20 Save £4.20
  • STEICO zell Air Injected/Loose Fill Wood Fibre Insulation - 15kg | Insulation Merchant STEICO zell Air Injected/Loose Fill Wood Fibre Insulation - 15kg | Insulation Merchant
    Sale 9%
    Spring Savings
    ZELL by Steico

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

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

    5.0

    INDITHERM HEMP - 440 by IndiNature®

    100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (2.11m²)

    £34.84 inc. VAT
    £16.51 per m²
    £29.03 ex. VAT
    £13.76 per m²
    £34.84 inc. VAT
    £16.51 per m²
    Save £-34.84
    £29.03 ex. VAT
    £13.76 per m²
    £0.00 Save £-29.03
  • 140mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant 140mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    COSYWOOL by Thermafleece

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

    £98.50 inc. VAT
    £18.80 per m²
    £82.08 ex. VAT
    £15.66 per m²
    £98.50 inc. VAT
    £18.80 per m²
    Save £-98.50
    £82.08 ex. VAT
    £15.66 per m²
    £0.00 Save £-82.08
  • 50m x 1.5m Thermafleece Breather Membrane (75m²) | Insulation Merchant 50m x 1.5m Thermafleece Breather Membrane (75m²) | Insulation Merchant
    Sale 59%
    Spring Savings
    BREATHER MEMBRANE by Thermafleece

    Thermafleece Breather Membrane

    From £74.90 inc. VAT
    £0.99 per m²
    From £62.42 ex. VAT
    £0.83 per m²
    From £74.90 inc. VAT
    £0.99 per m²
    £185.00 Save £110.10
    From £62.42 ex. VAT
    £0.83 per m²
    £154.17 Save £91.75
  • 100mm STEICO Special Dry 600mm x 2230mm - per board | Insulation Merchant 100mm STEICO Special Dry 600mm x 2230mm - per board | Insulation Merchant
    Sale 10%
    Spring Savings

    5.0

    SPECIAL DRY by Steico

    100mm STEICO Special Dry 600mm x 2230mm - per board

    £46.24 inc. VAT
    £36.47 per m²
    £38.53 ex. VAT
    £30.39 per m²
    £46.24 inc. VAT
    £36.47 per m²
    £51.38 Save £5.14
    £38.53 ex. VAT
    £30.39 per m²
    £42.82 Save £4.28
  • 120mm STEICO Flex 036 - 575mm x 1190mm (2.73m² / 4 per pack) | Insulation Merchant 120mm STEICO Flex 036 - 575mm x 1190mm (2.73m² / 4 per pack) | Insulation Merchant
    Sale 10%
    Spring Savings
    FLEX by Steico

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

    £ Looking for a price?

    Add to a quote for our best rate.

  • 60mm STEICO Therm (wet) - 600mm x 1350mm - per board | Insulation Merchant 60mm STEICO Therm (wet) - 600mm x 1350mm - per board | Insulation Merchant
    Sale 9%
    Spring Savings
    THERM WET by Steico

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

    £13.02 inc. VAT
    £10.85 ex. VAT
    £13.02 inc. VAT
    £14.32 Save £1.30
    £10.85 ex. VAT
    £11.93 Save £1.08
  • 140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (2.11m²) 140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (2.11m²)
    INDITHERM HEMP - 440 by IndiNature®

    140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (2.11m²)

    £48.78 inc. VAT
    £23.12 per m²
    £40.65 ex. VAT
    £19.27 per m²
    £48.78 inc. VAT
    £23.12 per m²
    Save £-48.78
    £40.65 ex. VAT
    £19.27 per m²
    £0.00 Save £-40.65
  • 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 inc. VAT
    £2.56 per m²
    £160.32 ex. VAT
    £2.14 per m²
    £192.38 inc. VAT
    £2.56 per m²
    Save £-192.38
    £160.32 ex. VAT
    £2.14 per m²
    £0.00 Save £-160.32
  • 35mm STEICO Universal Wet - 600mm x 2230mm | Insulation Merchant 35mm STEICO Universal Wet - 600mm x 2230mm | Insulation Merchant
    Sale 9%
    Spring Savings
    UNIVERSAL by Steico

    35mm STEICO Universal Wet - 600mm x 2230mm

    £19.40 inc. VAT
    £16.17 ex. VAT
    £19.40 inc. VAT
    £21.34 Save £1.94
    £16.17 ex. VAT
    £17.78 Save £1.62