Available in a wide range of sizes to suit any project, our wool blends offer a sustainable way to save energy and reduce costs for decades to come. By choosing Thermafleece, you aren’t just insulating your home, you’re supporting British farmers and our local manufacturing heritage.
It’s quite simple. Grass removes carbon from the atmosphere, sheep eat that grass, and it is naturally converted into wool. By turning that wool into insulation, you ensure the carbon remains safely captured for decades. Once the wool is shorn, it regrows and the cycle begins again, effectively turning homes into a carbon sinks. Plus, by significantly reducing your energy use, you’re lowering both your carbon footprint and your energy bills for years to come.
Though it isn’t visible, loft insulation is constantly subject to movement. Over time, this can cause fibres to dislodge and the material to slump, leading to gaps in thermal performance. This is why our manufacturing process is so critical. By opening the wool fibres and thermally bonding them, we create a uniform matrix that ensures structural stability. The result is consistent, high-performance insulation that remains effective for decades. The binder we use is polyester which is why our insulation is less than 100% wool but it’s a vital component for long term performance.
In the building world, ‘breathability’ is often misunderstood. Truly breathable insulation requires more than being vapour open; it must also be able to buffer moisture. When it comes to this dual performance, nothing surpasses wool. In fact, sheep’s wool is the only natural fibre used in insulation specifically designed by nature to keep things warm, cool, and comfortable.
Thermafleece CosyWool Roll is the ideal choice if you are looking for all round performance and excellent value
CosyWool roll is easy to install between and over joists making it ideal for insulating lofts and floors.
Made using British wool and thermally bonded for strength and durability, it delivers long-lasting performance you can rely on.
Thermafleece UltraWool Slab delivers premium thermal and acoustic performance
Its denser structure makes it ideal for insulating walls and places where space is limited, while also providing excellent sound reduction.
Made using British wool and thermally bonded for strength and durability, it delivers long-lasting performance you can rely on.
Thermafleece is an excellent insulation product that makes great use of British wool. It offers excellent thermal performance while allowing the building to breathe, helping us meet building regulations. Installation was quick, simple and safe, with no fuss.
We are great fans of Thermafleece CosyWool sheep’s wool insulation & have used it for approximately 20yrs. It is so much more than a quilt insulation. It’s ability to control vapour within a structure is outstanding. Plus it’s so nice to handle!
The thermafleece cosywool sheep’s wool insulation was amazing to work with and very easy to lay. We noticed the difference immediately and are super pleased with its performance so far. Service from ordering to delivery was excellent.
Meets all insulation and regulation requirements beautifully. So much better than other man made alternatives. So much better to install. Far more healthy from many angles – especially installation – no irritating particles.
My loft was insulated with fibreglass, which required me to wear a face mask when entering the loft, and I needed to replace it.
As a sheep farmer, I looked into using sheep’s wool. I thought that this was the right thing to do environmentally, “walk the
UltraWool is an excellent sustainable product. Being sourced and manufactured in the UK helped reduce our project’s carbon footprint, and it was safe and easy to install without the need for special protective equipment.
Lovely to be using a natural product. Not sure we had the right tools to cut it, but managed with scissors and persistence! Used to insulate the summer house in the garden – feels very cosy in there now.
Insulating with UltraWool signigicantly reduces the amount of energy lost from the building envelope, reducing energy consumption and carbon dioxide released to the atmosphere
Breathable natural fibres contribute to a more stable humidity and moisture lev
Felt the Difference all most right away.
Beyond its fantastic and self-evident insulative properties, the most remarkable thing for us was how pleasant Thermfleece insulation was to use. It turned the job of insulating from a messy, uncomfortable and unpleasant task to one we genuinely looked forward to.
Choosing a natural insulation product was a key priority for us, and Thermafleece CosyWool proved to be an excellent choice. We liked that it’s British made and supports local farmers, while also allowing our older property to breathe naturally.
CosyWool is a versatile insulation rich in British sheep’s wool and the ideal choice for all round performance and value for money. The wool rich blend ensured the full benefit of sheep’s wool with enhanced performance, durability and sustainability.
The moisture wicking properties together with the air purifying quality of CosyWool are the real reason I always choose it, allowing the building to breathe and removing toxins from the air make it the obvious choice.
fantastic to work with
This stuff is so much easier to install than rockwool, fibreglass or celotex.
Great product. Very pleasant and easy to use.
Simply excellent! Gone are the itches of fibre glass loft insulation instead a natural product of sheep’s wool, wrapped around your house for warmth. Must try a wool jumper again myself!
Great price and product
Thermafleece insulation has transformed our house. It was easy to install in our attic – we did it ourselves – it was all done in a day. Best thing ever.
No irritation from the sheep’s wool, made the room warmer straight away.
Worth it just for the abilty to breathe while using it and not getting itchy. Rips apart easily with hands or decent scissort. Excellent Product.
So easy to work with and has made a real difference to the warmth in the room below. Will be looking to replace all our loft insulation with this
Excellent quality insulation.
Effective and easy to use, fast and great service.
I’ve used the wool insulation for my campervan conversion very happy with the with the product
Great to handle and very easy to install.
Exactly as described, perfect for the job I was doing.
Excellent product, service, and delivery
Good price for item that we have used before. Straight forward order and delivery.
Really helpful with getting the right amount and overall great service, super range of products. about to buy again!
Take a look at the projects showing the versatility of our products.
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 and technical help. So feel free to submit an enquiry via our contact page.
Alternatively call us on 01768 486 285
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