British Sheep's Wool Insulation
Working in harmony with buildings
Thermafleece is suitable for traditional building and modern construction
Creating more breathable, sustainable and healthy structures
Here at Thermafleece, the home of British sheep's wool insulation, we have 20+ years of research and development experience. Our products optimise the properties of natural and recycled fibres to benefit you, your building and the environment.
British made with British wool
We are proud supporters of British farming. Thermafleece CosyWool and UltraWool products are made in Britain from British sheep’s wool.
Truthful advice guaranteed
We understand insulation. Whether you’re restoring a period property or self-building a shoffice, we’re available to answer your questions, giving you the information you need to make the best decision for your project.
Thermafleece is made from British sheep’s wool, a natural fibre that saves energy in your building.
Go to Our Products page to find out more about the benefits of wool insulation and to compare product specifications.
All Thermafleece insulation products are suitable for traditional and new build projects.
Thermafleece CosyWool and Thermafleece UltraWool combine British sheep's wool and recycled polyester fibres at their optimum proportions and density.
Our insulation meets the highest standards in thermal performance, breathability, sound absorption and sustainability.
Thermafleece products are versatile and can be used in floors, lofts, warm roofs and walls. We have guidance about installing our sheep’s wool insulation in a variety of applications on our How to install page.
In need of some insulation inspiration?
Have a look at our Case Studies page where we share examples of customers that have used Thermafleece insulation. Our products insulate flagship offices, historic buildings, shepherd’s huts and almost everything in between.
Keep in touch with the latest in natural fibre insulation news.
Our quarterly newsletter shares updates from Thermafleece and across the industry. Read our latest newsletter or browse our news page.
What does sheep’s wool insulation look and feel like?
To order a sample of any Thermafleece products or if you have any questions, please fill out the enquiry form on our Contact Us page.
Why Thermafleece?
British sheep’s wool is an incredibly sustainable and versatile natural fibre so it’s no surprise that Thermafleece is an extremely versatile and sustainable insulation. Wool is exceptional at regulating heat, humidity and sound and so is our insulation. The way we make Thermafleece harnesses wool’s best qualities, particularly is true breathability. Thermafleece is not only vapour open, sheep’s wool also wool buffers moisture helping regulate humidity in the building fabric, a property unique to natural fibre insulation.
In an environment of conflicting information, we understand that choosing the right insulation for your project can be daunting. That’s why our team is on hand! We offer impartial and truthful advice as well as providing general technical help so feel free to call us on 017684 86285 or submit an enquiry via the Contact Us page.