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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CEWOOD Wood Wool Multi-purpose Board - Square Edge | Insulation Merchant

Wood Wool Boards

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Pro Clima Contega Solido SL80 (Internal Single-sIded Corner Adhesive Tape) - 80mm x 30m | Insulation Merchant

Sustainable Building

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Learn more from our blogs

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 112 of 112 products
  • 140mm Thermafleece CosyWool Sheep Wool Slab (590mm wide) (OLD SIZE) | Insulation Merchant
    Alternative Now Available
    COSYWOOL by Thermafleece

    140mm Thermafleece CosyWool Sheep Wool Slab (590mm wide) (OLD SIZE)

    Looking for a price?

    Add to a quote for our best rate.

  • 50mm Thermafleece NatraHemp Slab (370mm wide) | Insulation Merchant
    NATRAHEMP by Thermafleece

    50mm Thermafleece NatraHemp Slab (370mm wide)

    Looking for a price?

    Add to a quote for our best rate.

  • 50mm Thermafleece CosyWool Sheep Wool Slab (590mm wide) (OLD SIZE) | Insulation Merchant
    COSYWOOL SLAB by Thermafleece

    50mm Thermafleece CosyWool Sheep Wool Slab (590mm wide) (OLD SIZE)

    Looking for a price?

    Add to a quote for our best rate.

  • IndiNature IndiLoft Hemp Flexibatt Loft Insulation | Insulation Merchant
    INDILOFT HEMP by IndiNature®

    IndiNature IndiLoft Hemp Flexibatt Loft Insulation

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    Add to a quote for our best rate.

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

    5.0

    COSYWOOL ROLL by Thermafleece

    Thermafleece CosyWool Sheep Wool Roll Insulation - 400 & 300mm

    £104.55 per item
    £13.40 per m²
    inc. VAT
    £87.13 per item
    £11.17 per m²
    ex. VAT
    Save £-104.55
    £104.55 per item
    £13.40 per m²
    inc. VAT
    £0.00 Save £-87.13
    £87.13 per item
    £11.17 per m²
    ex. VAT
  • 80mm STEICO protect M Dry - 1325mm x 600mm | Insulation Merchant
    PROTECT M (DRY) by Steico

    60mm STEICO protect M (dry) - 1325mm x 600mm

    This product is not available.

    Enquire for more information and advice.

  • STEICO Internal (wet)
    INTERNAL (WET) by Steico

    STEICO Internal (wet)

    From £6.24 per item
    £13.68 per m²
    inc. VAT
    From £5.20 per item
    £11.40 per m²
    ex. VAT
    £0.00 Save £-6.24
    From £6.24 per item
    £13.68 per m²
    inc. VAT
    £0.00 Save £-5.20
    From £5.20 per item
    £11.40 per m²
    ex. VAT
  • STEICO Special Dry - Sheathing & Render Woodfibre Board
    Sale 43%
    SPECIAL DRY by Steico

    STEICO Special Dry - Sheathing & Render Woodfibre Board

    From £17.38 per item
    £13.71 per m²
    inc. VAT
    From £14.48 per item
    £11.42 per m²
    ex. VAT
    £30.91 Save £13.53
    From £17.38 per item
    £13.71 per m²
    inc. VAT
    £25.76 Save £11.28
    From £14.48 per item
    £11.42 per m²
    ex. VAT
  • STEICO Protect L (dry) - Render Woodfibre Board
    PROTECT L (DRY) by Steico

    STEICO Protect L (dry) - Render Woodfibre Board

    Looking for a price?

    Add to a quote for our best rate.

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

    STEICO Flex - 575mm x 1190mm x 90mm (3.42m² p/pk)

    £51.26 per item
    £18.73 per m²
    inc. VAT
    £42.72 per item
    £15.61 per m²
    ex. VAT
    Save £-51.26
    £51.26 per item
    £18.73 per m²
    inc. VAT
    £0.00 Save £-42.72
    £42.72 per item
    £15.61 per m²
    ex. VAT
  • 100mm Sisaltech SISALWOOL™ 100 (1200x570mm) - Pack of 6 (4.104m²) | Insulation Merchant
    Sale
    SISALWOOL 50 by Sisalwool

    Sisaltech SISALWOOL™ 50

    From £75.17 per item
    £15.66 per m²
    inc. VAT
    From £62.64 per item
    £13.05 per m²
    ex. VAT
    £77.03 Save £1.86
    From £75.17 per item
    £15.66 per m²
    inc. VAT
    £64.19 Save £1.55
    From £62.64 per item
    £13.05 per m²
    ex. VAT
  • 200mm STEICO Flex 036 - 575mm x 1190mm (1.369m² / 2 per pack) | Insulation Merchant
    FLEX by Steico

    240mm STEICO Flex 036 - 575mm x 1190mm (1.368m² / 2 per pack)

    Looking for a price?

    Add to a quote for our best rate.