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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  • 100mm STEICO Flex 036 - 575mm x 1190mm (4 per pack) | Insulation Merchant 100mm STEICO Flex 036 - 575mm x 1190mm (4 per pack) | Insulation Merchant
    Sale 9%
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX57-100

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

    £43.08
    £15.74 per m²
    £35.90 ex. VAT
    £13.12 per m²
    £43.08
    £15.74 per m²
    £47.74 you save £4.66
    £35.90 ex. VAT
    £13.12 per m²
    £39.78 you save £3.88
  • 100mm STEICO Flex 036 - 375mm x 1190mm (4 per pack) | Insulation Merchant 100mm STEICO Flex 036 - 375mm x 1190mm (4 per pack) | Insulation Merchant
    Sale 8%
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX37-100

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

    £28.31
    £15.86 per m²
    £23.59 ex. VAT
    £13.22 per m²
    £28.31
    £15.86 per m²
    £31.08 you save £2.77
    £23.59 ex. VAT
    £13.22 per m²
    £25.90 you save £2.31
  • 22mm STEICO Universal Wet - 600mm x 2230mm | Insulation Merchant
    Sale 5%
    UNIVERSAL by Steico

    STE/UNI223-22

    22mm STEICO Universal Wet - 600mm x 2230mm

    £12.50
    £9.34 per m²
    £10.42 ex. VAT
    £7.79 per m²
    £12.50
    £9.34 per m²
    £13.16 you save £0.66
    £10.42 ex. VAT
    £7.79 per m²
    £10.97 you save £0.55
  • 40mm STEICOduo Dry - 600mm x 2230mm | Insulation Merchant
    Sale 9%
    DUO DRY by Steico

    STE/DD-40

    40mm STEICOduo Dry - 600mm x 2230mm

    £20.88
    £16.47 per m²
    £17.40 ex. VAT
    £13.72 per m²
    £20.88
    £16.47 per m²
    £23.05 you save £2.17
    £17.40 ex. VAT
    £13.72 per m²
    £19.21 you save £1.81
  • 40mm STEICO Therm (wet) - 600mm x 1350mm - per board | Insulation Merchant 40mm STEICO Therm (wet) - 600mm x 1350mm - per board | Insulation Merchant
    Sale 8%
    THERM WET by Steico

    STE/THERM-40

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

    £8.95
    £11.05 per m²
    £7.46 ex. VAT
    £9.21 per m²
    £8.95
    £11.05 per m²
    £9.77 you save £0.82
    £7.46 ex. VAT
    £9.21 per m²
    £8.14 you save £0.68
  • STE60mm STEICO Special Dry 600mm x 2230mm - per board | Insulation Merchant STE60mm STEICO Special Dry 600mm x 2230mm - per board | Insulation Merchant
    Sale 9%
    SPECIAL DRY by Steico

    STE/SPEDRY223-60

    60mm STEICO Special Dry 600mm x 2230mm - per board

    £27.99
    £22.07 per m²
    £23.33 ex. VAT
    £18.40 per m²
    £27.99
    £22.07 per m²
    £30.91 you save £2.92
    £23.33 ex. VAT
    £18.40 per m²
    £25.76 you save £2.43
  • IndiNature IndiLoft Hemp Flexibatt Loft Insulation | Insulation Merchant
    New
    Autumn Offers
    INDILOFT HEMP - 370 by IndiNature®

    IN/LB4437-100

    100mm IndiNature IndiLoft Hemp Flexibatt Loft Insulation - 1200 x 370mm (1.78m²)

    £21.31
    £11.97 per m²
    £17.76 ex. VAT
    £9.98 per m²
    £21.31
    £11.97 per m²
    you save £-21.31
    £17.76 ex. VAT
    £9.98 per m²
    £0.00 you save £-17.76
  • IndiNature IndiTherm Hemp Flexibatt Insulation | Insulation Merchant IndiNature IndiTherm Hemp Flexibatt Insulation | Insulation Merchant
    Autumn Offers
    INDITHERM HEMP - 370 by IndiNature®

    IN/TH4037-100

    100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m²)

    £27.90
    £15.67 per m²
    £23.25 ex. VAT
    £13.06 per m²
    £27.90
    £15.67 per m²
    you save £-27.90
    £23.25 ex. VAT
    £13.06 per m²
    £0.00 you save £-23.25
  • IndiNature IndiTherm Hemp Flexibatt Insulation | Insulation Merchant IndiNature IndiTherm Hemp Flexibatt Insulation | Insulation Merchant
    Autumn Offers
    INDITHERM HEMP - 570 by IndiNature®

    IN/TH4057-100

    100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (2.74m²)

    £42.98
    £15.69 per m²
    £35.82 ex. VAT
    £13.07 per m²
    £42.98
    £15.69 per m²
    you save £-42.98
    £35.82 ex. VAT
    £13.07 per m²
    £0.00 you save £-35.82
  • 100mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant 100mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchantv
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-100x370

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

    £96.80
    £13.41 per m²
    £80.67 ex. VAT
    £11.17 per m²
    £96.80
    £13.41 per m²
    you save £-96.80
    £80.67 ex. VAT
    £11.17 per m²
    £0.00 you save £-80.67
  • 100mm Thermafleece Supasoft Insulation (2 x 590mm rolls) - 5.90m² | Insulation Merchant 100mm Thermafleece Supasoft Insulation (2 x 590mm rolls) - 5.90m² | Insulation Merchant
    Autumn Offers
    SUPASOFT by Thermafleece

    TF/SS-100x590

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

    £ Looking for a price?

    Add to a quote for our best rate.

  • 90mm Thermafleece UltraWool Slab (590mm wide) 90mm Thermafleece UltraWool Slab (590mm wide)
    Autumn Offers
    ULTRAWOOL by Thermafleece

    TF/ULTRA-90590

    90mm Thermafleece UltraWool Slab (590mm wide)

    £214.57
    £25.24 per m²
    £178.81 ex. VAT
    £21.04 per m²
    £214.57
    £25.24 per m²
    you save £-214.57
    £178.81 ex. VAT
    £21.04 per m²
    £0.00 you save £-178.81
  • 50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (3.55m²) | Insulation Merchant 50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (3.55m²) | Insulation Merchant
    Autumn Offers
    INDITHERM HEMP - 370 by IndiNature®

    IN/TH4037-50

    50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (3.55m²)

    £27.90
    £7.86 per m²
    £23.25 ex. VAT
    £6.55 per m²
    £27.90
    £7.86 per m²
    you save £-27.90
    £23.25 ex. VAT
    £6.55 per m²
    £0.00 you save £-23.25
  • 50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (5.47m²) | Insulation Merchant 50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (5.47m²) | Insulation Merchant
    Autumn Offers
    INDITHERM HEMP - 570 by IndiNature®

    IN/TH4057-50

    50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (5.47m²)

    £42.98
    £7.86 per m²
    £35.82 ex. VAT
    £6.55 per m²
    £42.98
    £7.86 per m²
    you save £-42.98
    £35.82 ex. VAT
    £6.55 per m²
    £0.00 you save £-35.82
  • 100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant 100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-100x570

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

    £99.35
    £13.41 per m²
    £82.79 ex. VAT
    £11.17 per m²
    £99.35
    £13.41 per m²
    you save £-99.35
    £82.79 ex. VAT
    £11.17 per m²
    £0.00 you save £-82.79
  • 50mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant 50mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-50x370

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

    £96.95
    £6.72 per m²
    £80.79 ex. VAT
    £5.60 per m²
    £96.95
    £6.72 per m²
    you save £-96.95
    £80.79 ex. VAT
    £5.60 per m²
    £0.00 you save £-80.79
  • 150mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant 150mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-150x370

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

    £95.99
    £20.12 per m²
    £79.99 ex. VAT
    £16.77 per m²
    £95.99
    £20.12 per m²
    you save £-95.99
    £79.99 ex. VAT
    £16.77 per m²
    £0.00 you save £-79.99
  • 50mm STEICO Flex 036 - 575mm x 1190mm (6.158m² per pack) | Insulation Merchant 50mm STEICO Flex 036 - 575mm x 1190mm (6.158m² per pack) | Insulation Merchant
    Sale 9%
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX57-50

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

    £49.44
    £8.03 per m²
    £41.20 ex. VAT
    £6.69 per m²
    £49.44
    £8.03 per m²
    £54.84 you save £5.40
    £41.20 ex. VAT
    £6.69 per m²
    £45.70 you save £4.50
  • 75mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) 75mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls)
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-75x370

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

    £94.90
    £10.05 per m²
    £79.08 ex. VAT
    £8.38 per m²
    £94.90
    £10.05 per m²
    you save £-94.90
    £79.08 ex. VAT
    £8.38 per m²
    £0.00 you save £-79.08
  • 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
    Sale 9%
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX57-40

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

    £43.33
    £6.33 per m²
    £36.11 ex. VAT
    £5.28 per m²
    £43.33
    £6.33 per m²
    £47.74 you save £4.41
    £36.11 ex. VAT
    £5.28 per m²
    £39.78 you save £3.68