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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  • 25mm STEICO Flex (Inserts for I-Joists) - 1220mm x 575mm (pack of 23) | Insulation Merchant 25mm STEICO Flex (Inserts for I-Joists) - 1220mm x 575mm (pack of 23) | Insulation Merchant
    Sale 22%
    Autumn Offers
    FLEX INSERTS by Steico

    STE/FLEXIN-25

    25mm STEICO Flex (Inserts for I-Joists) - 1220mm x 575mm (pack of 23)

    £73.90
    £4.58 per m²
    £61.58 ex. VAT
    £3.82 per m²
    £73.90
    £4.58 per m²
    £95.90 you save £22.00
    £61.58 ex. VAT
    £3.82 per m²
    £79.92 you save £18.33
  • 80mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (3.70m² / 7 per pack) 80mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (3.70m² / 7 per pack)
    Autumn Offers
    Discontinued - Alternative Available.
    INDITHERM HEMP - 440 by IndiNature®

    IN/TH4044-80

    80mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (3.70m² / 7 per pack)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 100mm STEICO Therm (wet)- 600mm x 1350mm - per board | Insulation Merchant 100mm STEICO Therm (wet)- 600mm x 1350mm - per board | Insulation Merchant
    Sale 6%
    THERM WET by Steico

    STE/THERM-100

    100mm STEICO Therm (wet)- 600mm x 1350mm - per board

    £22.48
    £18.73 ex. VAT
    £22.48
    £24.14 you save £1.66
    £18.73 ex. VAT
    £20.12 you save £1.38
  • 100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-25x370

    25mm Thermafleece CosyWool Sheep Wool (1 x 370mm roll)

    £22.50
    £5.07 per m²
    £18.75 ex. VAT
    £4.22 per m²
    £22.50
    £5.07 per m²
    you save £-22.50
    £18.75 ex. VAT
    £4.22 per m²
    £0.00 you save £-18.75
  • IndiNature IndiLoft Hemp Flexibatt Loft Insulation
    New
    Autumn Offers
    INDILOFT HEMP - 570 by IndiNature®

    IN/LB4457-100

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

    £32.83
    £11.98 per m²
    £27.36 ex. VAT
    £9.98 per m²
    £32.83
    £11.98 per m²
    you save £-32.83
    £27.36 ex. VAT
    £9.98 per m²
    £0.00 you save £-27.36
  • 20mm STEICO Protect H (Multi Use/Reveal Board) - 1350mm x 500mm | Insulation Merchant
    PROTECT H by Steico

    STE/PRB-20

    20mm STEICO Protect H (Multi Use/Reveal Board) - 1350mm x 500mm

    £8.90
    £11.91 per m²
    £7.42 ex. VAT
    £9.93 per m²
    £8.90
    £11.91 per m²
    you save £-8.90
    £7.42 ex. VAT
    £9.93 per m²
    £0.00 you save £-7.42
  • 80mm STEICO protect M Dry - 1325mm x 600mm
    Sale 9%
    PROTECT M DRY by Steico

    STE/PRDRYM-80

    80mm STEICO protect M Dry - 1325mm x 600mm

    £23.24
    £31.11 per m²
    £19.37 ex. VAT
    £25.93 per m²
    £23.24
    £31.11 per m²
    £25.67 you save £2.43
    £19.37 ex. VAT
    £25.93 per m²
    £21.39 you save £2.03
  • STEICOmulti Renova Membrane - 50m x 1.5m
    MULTI RENOVA by Steico

    STE/REN-5015

    STEICOmulti Renova Membrane - 50m x 1.5m

    £284.90
    £3.79 per m²
    £237.42 ex. VAT
    £3.17 per m²
    £284.90
    £3.79 per m²
    you save £-284.90
    £237.42 ex. VAT
    £3.17 per m²
    £0.00 you save £-237.42
  • 100mm Thermafleece CosyWool Sheep Wool Slab (390mm wide) (OLD SIZE) | Insulation Merchant 100mm Thermafleece CosyWool Sheep Wool Slab (390mm wide) (OLD SIZE) | Insulation Merchant
    Alternative Now Available
    COSYWOOL SLAB by Thermafleece

    TF/COSYSL-100390

    100mm Thermafleece CosyWool Sheep Wool Slab (390mm wide) (OLD SIZE)

    £ Looking for a price?

    Add to a quote for our best rate.

  • 100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-25x570

    25mm Thermafleece CosyWool Sheep Wool (1 x 570mm roll)

    £34.65
    £5.07 per m²
    £28.88 ex. VAT
    £4.22 per m²
    £34.65
    £5.07 per m²
    you save £-34.65
    £28.88 ex. VAT
    £4.22 per m²
    £0.00 you save £-28.88
  • 140mm IndiNature IndiLoft Hemp Flexibatt Loft Insulation - 1200 x 570mm (2.74m²) | Insulation Merchant
    New
    Autumn Offers
    INDILOFT HEMP - 570 by IndiNature®

    IN/LB4457-140

    140mm IndiNature IndiLoft Hemp Flexibatt Loft Insulation - 1200 x 570mm (2.74m²)

    £45.96
    £16.77 per m²
    £38.30 ex. VAT
    £13.98 per m²
    £45.96
    £16.77 per m²
    you save £-45.96
    £38.30 ex. VAT
    £13.98 per m²
    £0.00 you save £-38.30
  • 100mm STEICO Flex 036 - 575mm x 1190mm - PALLET OF 10 | Insulation Merchant 100mm STEICO Flex 036 - 575mm x 1190mm - PALLET OF 10 | Insulation Merchant
    Sale 7%
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX57-100/PL

    100mm STEICO Flex 036 - 575mm x 1190mm - PALLET OF 10

    £430.00
    £15.35 per m²
    £358.33 ex. VAT
    £12.80 per m²
    £430.00
    £15.35 per m²
    £465.00 you save £35.00
    £358.33 ex. VAT
    £12.80 per m²
    £387.50 you save £29.17
  • 140mm STEICO Special Dry 600mm x 1880mm - per board | Insulation Merchant 140mm STEICO Special Dry 600mm x 1880mm - per board | Insulation Merchant
    Sale 9%
    SPECIAL DRY by Steico

    STE/SPEDRY-140

    140mm STEICO Special Dry 600mm x 1880mm - per board

    £54.91
    £51.46 per m²
    £45.76 ex. VAT
    £42.89 per m²
    £54.91
    £51.46 per m²
    £60.62 you save £5.71
    £45.76 ex. VAT
    £42.89 per m²
    £50.52 you save £4.76
  • 50mm Thermafleece Supasoft Roll (2 x 590mm rolls) | Insulation Merchant 50mm Thermafleece Supasoft Roll (2 x 590mm rolls) | Insulation Merchant
    Autumn Offers
    SUPASOFT by Thermafleece

    TF/SS-50x590

    50mm Thermafleece Supasoft Roll (2 x 590mm rolls)

    £58.40
    £4.95 per m²
    £48.67 ex. VAT
    £4.12 per m²
    £58.40
    £4.95 per m²
    you save £-58.40
    £48.67 ex. VAT
    £4.12 per m²
    £0.00 you save £-48.67
  • 90mm Thermafleece UltraWool Slab (390mm wide) 90mm Thermafleece UltraWool Slab (390mm wide)
    Autumn Offers
    ULTRAWOOL by Thermafleece

    TF/ULTRA-90390

    90mm Thermafleece UltraWool Slab (390mm wide)

    £220.60
    £51.06 per m²
    £183.83 ex. VAT
    £42.55 per m²
    £220.60
    £51.06 per m²
    you save £-220.60
    £183.83 ex. VAT
    £42.55 per m²
    £0.00 you save £-183.83
  • 50mm Thermafleece CosyWool Sheep Wool Slab (390mm wide) (OLD SIZE) | Insulation Merchant 50mm Thermafleece CosyWool Sheep Wool Slab (390mm wide) (OLD SIZE) | Insulation Merchant
    Alternative Now Available
    COSYWOOL SLAB by Thermafleece

    TF/COSYSL-50390

    50mm Thermafleece CosyWool Sheep Wool Slab (390mm wide) (OLD SIZE)

    £ Looking for a price?

    Add to a quote for our best rate.

  • STEICO Multi Tape P - 60mm x 40m
    MULTI TAPE P by Steico

    STE/MTP-60

    STEICO Multi Tape P - 60mm x 40m

    £24.90
    £0.62 per LM (linear metre)
    £20.75 ex. VAT
    £0.52 per LM (linear metre)
    £24.90
    £0.62 per LM (linear metre)
    you save £-24.90
    £20.75 ex. VAT
    £0.52 per LM (linear metre)
    £0.00 you save £-20.75
  • IndiNature IndiBoard Semi-rigid Hemp Board - 1100 mm x 600mm IndiNature IndiBoard Semi-rigid Hemp Board - 1100 mm x 600mm
    NEW RELEASE
    INDIBOARD® by IndiNature®

    IN/BO-30

    IndiNature IndiBoard Semi-rigid Hemp Board - 1100 mm x 600mm

    From £7.10
    £10.76 per m²
    From £5.92 ex. VAT
    £8.96 per m²
    From £7.10
    £10.76 per m²
    you save £-7.10
    From £5.92 ex. VAT
    £8.96 per m²
    £0.00 you save £-5.92
  • 120mm STEICO Protect M Dry - 1325mm x 600mm | Insulation Merchant
    Sale 9%
    PROTECT M DRY by Steico

    STE/PRDRYM-120

    120mm STEICO Protect M Dry - 1325mm x 600mm

    £35.06
    £46.93 per m²
    £29.22 ex. VAT
    £39.11 per m²
    £35.06
    £46.93 per m²
    £38.71 you save £3.65
    £29.22 ex. VAT
    £39.11 per m²
    £32.26 you save £3.04
  • 50mm Thermafleece Supasoft Roll (3 x 390mm rolls) | Insulation Merchant 50mm Thermafleece Supasoft Roll (3 x 390mm rolls) | Insulation Merchant
    Autumn Offers
    SUPASOFT by Thermafleece

    TF/SS-50x390

    50mm Thermafleece Supasoft Roll (3 x 390mm rolls)

    £58.40
    £9.90 per m²
    £48.67 ex. VAT
    £8.25 per m²
    £58.40
    £9.90 per m²
    you save £-58.40
    £48.67 ex. VAT
    £8.25 per m²
    £0.00 you save £-48.67