Thermafleece belongs to Eden Renewable Innovations Ltd. (ERI), a private company based in the Lake District UNESCO World Heritage Site in Northern England. Inspired by the sheep in rural Cumbria, we create products that use natural resources to benefit people and the planet.

We introduced Thermafleece CosyWool and Thermafleece UltraWool as the first insulation products made from British sheep’s wool and manufactured in Britain. For over two decades, Thermafleece has led the UK’s natural fibre insulation market. In doing so, we’ve consistently driven innovation and set high standards across the industry.

We design our insulation to work in harmony with buildings. It improves thermal performance, enhances breathability, absorbs sound, and supports sustainability. Moreover, when you insulate buildings with Thermafleece, you significantly reduce energy use. As a result, you improve the long-term health of the building, its occupants, and the surrounding environment.

At ERI, we take pride in delivering excellent service. We base our advice on facts and deep expertise in the natural fibre insulation market. Because we value transparency, we always provide honest and impartial guidance.

We actively support British farming and the British wool industry. Over the years, we’ve built strong relationships with wool suppliers and producers across the UK. Today, we continue to manufacture Thermafleece in Britain, reinforcing our commitment to local production and sustainability.

Mark Lynn, our Managing Director, chairs the Alliance for Sustainable Building Products. He brings extensive knowledge of building insulation and passionately advocates for healthy, sustainable buildings. In particular, Mark focuses on building physics and the chemistry of materials to guide innovation.

We understand that choosing the right insulation can feel overwhelming, especially with so much conflicting information available. That’s why our team remains ready to help. We offer clear, impartial advice and technical support. If you need assistance, call us on 017684 86285 or submit an enquiry through our Contact Us page.