5% discount on all orders over £500
(applied automatically at checkout)


Recycled Fibre Insulation

Natural Fibre Insulation

Warmshell Woodfibre


Introducing New SisalWool Natural Fibre Insulation

A unique high-performance, low-carbon natural fibre insulation

Sisalwool Insulation

We're now proud stockist of SisalWool Insulation!

What is SisalWool?

It's a new natural fibre insulation made from a blend of Sisal (from the Sisal plant), sheep’s wool and upcycled coffee bean sacks from Scottish roasters (the sacks are also made of Sisal). This combination undergoes meticulous blending to ensure uniformity and performance. The result is a remarkable insulation material that boasts exceptional thermal properties, all while staying true to Sisalwool’s commitment to sustainability and the circular economy.

  • Sustainable and Renewable Resources.
  • Suitable for use in traditionally constructed and modern homes. 
  • Flexible and easy to install
  • Regulates humidity levels
  • Fire Resistant
  • Mould and mildew-resistant
  • Formaldehyde Free
Sisalwool Insulation Batts
Sisalwool Insulation Loftroll

Read more about SisalTech, Sisal, the circular economy and the Scottish company that developed SisalWool here: 

Read Article

We're also proud to offer the Pavatextil, a recycled fibre insulation from Soprema.

Soprema Pavatexil P - Recycled Denim Insulation

Recycled Denim Insulation "Pavatexil P" is made from 100% recycled cotton, mainly denim jeans and a little velvet.

The cotton fibres are treated with anti-bacterial, fungal and flame retardant treatments, making them resistant to dust mites and mould. Finally, the treated fibres are pressed into insulation slabs of various thicknesses and cut to size.

  • 100% Recycled insulation made with 85% cotton fibres from jeans and velvet and 15% polyester fibres 
  • Great sound reduction properties
  • Resistant to mould growth
  • Fire Tested (EN 13501–1): E
  • Density: 20kgm3
Recycled Denim Insulation
Shop Soprema Pavatexil P

Prices From £56.23

Explore the Wide Range of Fantastic Insulation Options Now Available!

Thermafleece - SupaSoft Polyester Insulation

Thermafleece - SupaSoft Polyester Insulation

Available Sizes:

Thickness: 50mm and 100mm

Width: 390mm and 590mm

From £22 

Shop now
Thermafleece - Cosywool Sheeps Wool Insulation

Thermafleece - Cosywool Sheeps Wool Insulation

Available Sizes:

Thickness: 50mm, 75mm, 100mm, 140mm and 150mm-NEW SIZE

Width: 370mm, 400mm, and 570mm 

From £35

Shop now
IndiNature - IndiTherm Flexible Hemp Insulation

IndiNature - IndiTherm Flexible Hemp Insulation

Made from UK grown Hemp, IndiTherm is a high-density, flexible Natural Fibre insulation made from Hemp.

From £35

Shop now
Lime Green - Warmshell Woodfibre Insulation Boards

Lime Green - Warmshell Woodfibre Insulation Boards

The Warmshell system uses natural components – primarily wood fibre and lime mortars – with no harmful chemicals or adhesives.

From £19.06

Shop now

Save Big on Your Next Large Order with Our Fabulous Deal!

5% discount on all orders over £500

Shop now

Shop Our Associated Insulation Products!

Loft Legs for Raised Loft Floor 175mm- Box of 12
Thermofloc Adhesive Tape
Thermofloc Variable SD Membrane
Thermafleece - Breather Membrane
Multi Purpose Screws - Ideal for Loft Legs (200 Box)
Novia - 1000g Vapour Control Layer
Save 5% on orders over £500


Insulation Guides and other FAQs


Insulation FAQ's and Advice
or Contact Us For a Quote

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Celtic Sustainables Ltd, Unit 9 Parc Teifi Business park, Cardigan, Ceredigion, SA43 1EW
Tel: 01239 777009