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Cavity Wall Insulation Companies in the UK

  • InstaGroup focuses on energy efficiency products and services and specialist construction products. We are are UK market leader for insulation,...

  • Stockists and distributors of insulation materials and building products to the construction industry in the Midlands, Wales and South West.

  • Supplier of an extensive range of products including building boards, prefabricated chimneys, real brick cladding, prefabricated dormers & canopies,...

  • Miller Pattison
    A leading UK installer of cavity wall insulation, loft insulation and draught proofing using products from the leading manufacturers.
  • Celotex Ltd
    Celotex are major manufacturers of highly specialisesd, high performance thermal insulation board products. Our insulation is suitable for a wide variety of building applications, including underfloor heating, loft, cavity wall, roof and floor insulation.
  • Testa-Teres
    Specialists in external wall insulation and polymer and fibre reinforced systems.
  • Recticel Insulation Products
    Based at Stoke-on-Trent, Recticel Insulation Products manufactures market leading insulation boards for the construction industry.
  • Jablite
    Jablite is a leading UK supplier of expanded polystyrene insulation for the construction industry, supplying insulation for walls, floors and roofs, roads, bridges, culverts, rail embankments, marina pontoons and much more.
  • URSA UK Ltd
    With a wide experience and knowledge of Glass Wool solutions for construction URSA supplies high quality products for thermal and acoustic insulation applications.
  • Anglian Insulations Ltd
    Providers of insulation installation services for the residential and building trade including loft insulations, fire barrier fittings and cavity wall installation.
  • YBS Insulation Limited
    YBS are a leading UK manufacturer and supplier of innovative insulation materials, supplying high quality insulation products to the building industry. Our products include floor, roof and wall insulation, cavity insulation, non-itch and eco-wool.
  • Knauf Insulation Ltd
    Knauf Insulation represents one of the most respected and progressive names in European building products and is a leading UK insulation company. We are the only UK manufacturer of glass mineral wool, rock mineral wool and extruded polystyrene insulation products, and our extensive product range covers loft insulation rolls, duct rolls, acoustic rolls, as well as roof and wall insulation slabs.

Where to buy cavity wall insulation

  • The Insta Group - Insta House, Ivanhoe Road, Hogwood business Park, Finchampstead, Berkshire, RG40 4PZ, 0800 614 861
  • Woods Insulation - Unit 9, Merryhills Enterprise Park, Park Lane, Wolverhampton, West Midlands, WV10 9TJ, 01902 733711
  • Euroform Products Ltd - The Heliport, Lyncastle Road, Appleton, Warrington, Cheshire, WA4 4SN, 01925 860999

We have brick external walls with 50mm cavity. What is the expected U value to be achieved with blown fibre cavity full fill.

An accurate U value is also dependent on the type of blockwork present. Knauf Insulation featured above gives a comprehensive table of U values for their Supafil Cavity Wall Insulation which may be helpful.

Kind regards

Debbie Prince - The Construction Centre

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