About us
At J W Insulation, we specialise in high-performance blown fibre insulation including Warmcel Cellulose, Gutex Wood fibre, and Knauf Supafil frame as well as other materials we are happy to create an estimate for. We provide insulation for a variety of structures, such as timber frame and masonry builds, across private, commercial, and industrial sectors.
Our blown insulation system allows us to provide comprehensive and versatile insulation solutions suitable for both new build and refurbishment projects.
With 15 years of experience in the trade, we’ve built a reputation for quality, reliability, and professionalism. We operate nationwide, and we’re proud to be trusted installers recommended by our insulation material providers — a mark of our workmanship and commitment to excellence.
Why Choose Blown Fibre Insulation?
- Maximum Coverage: Seamlessly fills lofts, walls, and floor voids — no gaps, no waste.
- Lower Bills: Save up to £300 per year on heating costs.
- Quick, Clean Install: Minimal disruption to your property.
- Eco-Friendly: Recycled and natural materials available.
- Soundproofing Bonus: Enjoy a quieter, more peaceful home.
- Fire & Pest Resistant: Stay safe and protected year-round.
The future is Blown Fibre
At JW Insulation, we work with a focus on energy efficiency and building performance, aligning our installations with Passivhaus principles wherever possible. We carefully assess the U-value of each insulation project to ensure optimal thermal performance, helping reduce heat loss and energy demand. By using high-quality fibre blown materials and expert installation techniques, we help homeowners and business owners get closer to Passivhaus-level airtightness and insulation standards.
