About Us
Welcome to Thermawool — “your specialist source for high-performance stone wool insulation solutions” in the UK.
As one of the UK’s leading stone wool manufacturers, we specialise in A1 fire-rated stone mineral wool insulation, delivering tailored solutions for a wide range of cladding and construction applications. Whether you need external solutions for facades and timber envelopes, or other options like soffits, partitions, floors and roofs, we have the right product for your project.
Our RAINCLAD series alongside the WALLCLAD series insulations has become a trusted component in cladding and render systems across the UK and Europe, valued for its consistent quality and technical performance. Our team works closely with architects, facade engineers, contractors and specifiers to develop cost-effective solutions that meet the specific requirements of different types of projects, including residential and commercial.
With many years of combined experience in the UK construction materials market, our team brings deep technical knowledge and a personal approach to every project. We are committed to making the specification and procurement process as straightforward as possible.
Thermawool is a proud brand of Cladmate Facade Systems Ltd.
External wall and ventilated rainscreen cladding systems for buildings of any height.
Tailored insulation for timber- and steel-frame building envelopes.
Fire-safe, acoustic stone wool for soffits and internal partitions.
Thermal and acoustic solutions for floor and roof build-ups.
Thermawool. Insulation, made for UK construction. A brand of KNT Group. One solution, any project.
