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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IndiNature IndiTherm Hemp Flexibatt Insulation | Insulation Merchant

Hemp Insulation

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Sheep's Wool

Sheep's Wool

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Wood Wool Boards

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Airtight and windtight systems | Insulation Merchant

Sustainable Building

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  • IndiNature IndiLoft Hemp Flexibatt Loft Insulation | Insulation Merchant
    New
    Autumn Offers
    INDILOFT HEMP - 440 by IndiNature®

    IN/LB4444-100

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

    £25.34
    £12.01 per m²
    £21.12 ex. VAT
    £10.01 per m²
    £25.34
    £12.01 per m²
    you save £-25.34
    £21.12 ex. VAT
    £10.01 per m²
    £0.00 you save £-21.12
  • 140mm PAVATEX Pavatherm Board - 108mm x 585mm Shiplap | Insulation Merchant
    Sale 20%
    PAVATHERM by Pavatex

    PAV/PAVATHERM-140

    140mm PAVATEX Pavatherm Board - 108mm x 585mm Shiplap

    £26.90
    £40.76 per m²
    £22.42 ex. VAT
    £33.96 per m²
    £26.90
    £40.76 per m²
    £33.65 you save £6.75
    £22.42 ex. VAT
    £33.96 per m²
    £28.04 you save £5.63
  • 19mm PAVATEX Pavanatur (1100mm x 600mm) - Pallet of 120 | Insulation Merchant
    by Pavatex

    PAV/NATUR-19/PL12

    19mm PAVATEX Pavanatur (1100mm x 600mm) - Pallet of 120

    £445.90
    £5.63 per m²
    £371.58 ex. VAT
    £4.69 per m²
    £445.90
    £5.63 per m²
    you save £-445.90
    £371.58 ex. VAT
    £4.69 per m²
    £0.00 you save £-371.58
  • 19mm PAVATEX Pavanatur (1100mm x 600mm) - per board | Insulation Merchant
    by Pavatex

    PAV/NATUR-19

    19mm PAVATEX Pavanatur (1100mm x 600mm) - per board

    £4.65
    £7.05 per m²
    £3.88 ex. VAT
    £5.87 per m²
    £4.65
    £7.05 per m²
    you save £-4.65
    £3.88 ex. VAT
    £5.87 per m²
    £0.00 you save £-3.88
  • 60mm STEICO Therm (wet) - 600mm x 1350mm (Pallet of 38) | Insulation Merchant 60mm STEICO Therm (wet) - 600mm x 1350mm (Pallet of 38) | Insulation Merchant
    Sale 8%
    THERM WET by Steico

    STE/THERM-60/PL

    60mm STEICO Therm (wet) - 600mm x 1350mm (Pallet of 38)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 140mm STEICO Therm dry - 600mm x 1350mm - per board | Insulation Merchant
    THERM DRY by Steico

    STE/THERM-140

    140mm STEICO Therm dry - 600mm x 1350mm - per board

    £34.68
    £42.81 per m²
    £28.90 ex. VAT
    £35.68 per m²
    £34.68
    £42.81 per m²
    you save £-34.68
    £28.90 ex. VAT
    £35.68 per m²
    £0.00 you save £-28.90
  • 70mm Thermafleece UltraWool Slab (390mm wide) 70mm Thermafleece UltraWool Slab (390mm wide)
    Autumn Offers
    ULTRAWOOL by Thermafleece

    TF/ULTRA-70390

    70mm Thermafleece UltraWool Slab (390mm wide)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 70mm Thermafleece NatraHemp Slab (570mm wide) 70mm Thermafleece NatraHemp Slab (570mm wide)
    Autumn Offers
    NATRAHEMP by Thermafleece

    TF/NATHEM-70570

    70mm Thermafleece NatraHemp Slab (570mm wide)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 75mm Thermafleece CosyWool Sheep Wool Slab (390mm wide) (OLD SIZE) 75mm Thermafleece CosyWool Sheep Wool Slab (390mm wide) (OLD SIZE)
    Alternative Now Available
    COSYWOOL SLAB by Thermafleece

    TF/COSYSL-75390

    75mm Thermafleece CosyWool Sheep Wool Slab (390mm wide) (OLD SIZE)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 50mm Thermafleece UltraWool Slab (390mm wide) | Insulation Merchant 50mm Thermafleece UltraWool Slab (390mm wide) | Insulation Merchant
    Autumn Offers
    ULTRAWOOL by Thermafleece

    TF/ULTRA-50390

    50mm Thermafleece UltraWool Slab (390mm wide)

    £204.49
    £14.56 per m²
    £170.41 ex. VAT
    £12.14 per m²
    £204.49
    £14.56 per m²
    you save £-204.49
    £170.41 ex. VAT
    £12.14 per m²
    £0.00 you save £-170.41
  • 40mm STEICO Flex 036 - 375mm x 1190mm (4.463m² / 10 per pack) | Insulation Merchant 40mm STEICO Flex 036 - 375mm x 1190mm (4.463m² / 10 per pack) | Insulation Merchant
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX37-40

    40mm STEICO Flex 036 - 375mm x 1190mm (4.463m² / 10 per pack)

    £28.49
    £6.38 per m²
    £23.74 ex. VAT
    £5.32 per m²
    £28.49
    £6.38 per m²
    you save £-28.49
    £23.74 ex. VAT
    £5.32 per m²
    £0.00 you save £-23.74
  • 18mm STEICO Flex (Inserts for I-Joists) - 1220mm x 575mm | Insulation Merchant 18mm STEICO Flex (Inserts for I-Joists) - 1220mm x 575mm | Insulation Merchant
    Autumn Offers
    FLEX INSERTS by Steico

    STE/FLEXIN-18

    18mm STEICO Flex (Inserts for I-Joists) - 1220mm x 575mm

    £ Looking for a price?

    Add to a quote for our best rate.

  • 140mm STEICO Protect M Dry - 3000mm x 2400m | Insulation Merchant
    PROTECT M DRY by Steico

    140mm STEICO Protect M Dry - 3000mm x 2400m

    £ Looking for a price?

    Add to a quote for our best rate.

  • 100mm Sisaltech SISALWOOL™ 100 (1200x570mm) - Pack of 6 (4.104m²) | Insulation Merchant 100mm Sisaltech SISALWOOL™ 100 (1200x570mm) - Pack of 6 (4.104m²) | Insulation Merchant
    SISALWOOL 036 by Sisaltech

    ST/SW100/PK

    100mm Sisaltech SISALWOOL™ 100 (1200x570mm) - Pack of 6 (4.104m²)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 100mm Sisaltech SISALWOOL™ 100 (1200x570mm) - Pallet of 46 (31.464m²) | Insulation Merchant 100mm Sisaltech SISALWOOL™ 100 (1200x570mm) - Pallet of 46 (31.464m²) | Insulation Merchant
    SISALWOOL 036 by Sisaltech

    ST/SW100/PL

    100mm Sisaltech SISALWOOL™ 100 (1200x570mm) - Pallet of 46 (31.464m²)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 100mm STEICO Therm (wet) - 600mm x 1350mm (Pallet of 22) | Insulation Merchant 100mm STEICO Therm (wet) - 600mm x 1350mm (Pallet of 22) | Insulation Merchant
    Sale 8%
    THERM WET by Steico

    STE/THERM-100/PL

    100mm STEICO Therm (wet) - 600mm x 1350mm (Pallet of 22)

    £482.19
    £595.30 per m²
    £401.83 ex. VAT
    £496.08 per m²
    £482.19
    £595.30 per m²
    £525.00 you save £42.81
    £401.83 ex. VAT
    £496.08 per m²
    £437.50 you save £35.68
  • 80mm STEICO Flex 036 - 375mm x 1190mm (2.678m² / 6 per pack) 80mm STEICO Flex 036 - 375mm x 1190mm (2.678m² / 6 per pack)
    Sale 10%
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX37-80

    80mm STEICO Flex 036 - 375mm x 1190mm (2.678m² / 6 per pack)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 70mm Thermafleece UltraWool Slab (590mm wide) 70mm Thermafleece UltraWool Slab (590mm wide)
    Autumn Offers
    ULTRAWOOL by Thermafleece

    TF/ULTRA-70590

    70mm Thermafleece UltraWool Slab (590mm wide)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 100mm Thermafleece NatraHemp Slab - 570mm wide (10.94m²) | Insulation Merchant 100mm Thermafleece NatraHemp Slab - 570mm wide (10.94m²) | Insulation Merchant
    Autumn Offers
    NATRAHEMP by Thermafleece

    TF/NATHEM-100570

    100mm Thermafleece NatraHemp Slab - 570mm wide (10.94m²)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 70mm Thermafleece NatraHemp Slab (370mm wide) 70mm Thermafleece NatraHemp Slab (370mm wide)
    Autumn Offers
    NATRAHEMP by Thermafleece

    TF/NATHEM-70370

    70mm Thermafleece NatraHemp Slab (370mm wide)

    £ Looking for a price?

    Add to a quote for our best rate.