Naturally Warm. Comfortably Cool. Quietly Sustainable.

Sisalwool is natural, low-carbon insulation that keeps your home comfortable year-round. Made from renewable fibres, it’s breathable, energy-efficient, and delivers Class A sound absorption without compromise.

Why Sisalwool?

Kinder to your home, and your hands

Sisalwool is soft to touch, safe to handle, and free from petrochemicals. It won’t make your skin itch like traditional fibreglass insulation.

Seasonally Adaptable

Its natural fibres trap heat in colder months and regulate moisture in warmer ones, so your home stays comfortable, all year round.

Older Homes Love It

Unlike synthetic insulation, Sisalwool is breathable. That means it works with solid stone or brick walls to reduce dampness and avoid trapped moisture.

Sustainable. Safe. Surprisingly snuggly.

There is actually nothing surprising about it. Just pure, natural materials, free from nasties and harmful irritants. So go ahead, squeeze it, snuggle it, snooze on it, smush it, even give it a cheeky sniff. We get it.

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Why Sisalwool vs Synthetic competitors?

Be it a new sustainable home or a full retrofit, Sisalwool is ideal for:

  • Renovating a stone cottage, barn, or older property
  • Improving insulation in draughty lofts, timber floors or cold rooms
  • Families who care about health, sustainability, and long-term comfort
  • Self-builders looking to reduce carbon while increasing performance
  • Estate owners or rural projects needing natural, futureproof materials
  • Looking to future-proof your home against mould, energy price rises and deterioration
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Featured Products

Sisalwool is a versatile product, perfect for a wide range of projects. Check out our product guides for more information.

Datasheets available here: Sisalwool 100 | Sisalwool 50 | Sisalwool Loftroll

Sisalwool 100

Sisalwool 100

From £82.00

Sisalwool 50

Sisalwool 50

From £87.00

Sisalwool Loftroll

Sisalwool Loftroll

From £26.85

Interested in Sisalwool?

Reach out to our team today.

For technical support, U-value or area calculations and more, we’re here to help.

Call us on 0131 510 9296 or contact us online.

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Case Studies

See how builders across the UK are using Sisalwool to speed up installs, improve comfort on site, and deliver better results in every project.

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See it. Feel it. Install it.


Get a Sample Installation Guide