Trusted UK Supplier
Celotex
Celotex PIR Insulation Board - 2400mm x 1200mm - (TB4000, GA4000, & XR4000)
Rockwool
Rockwool RWA45 Slab - 1200mm x 600mm - All Thicknesses
Kingspan
Kingspan Kooltherm K106 Cavity Board - 1200mm x 450mm - All Thicknesses
Knauf
Knauf Acoustic Partition Roll (APR) - 600mm Width - All Thicknesses
Celotex
Celotex Insulated Plasterboard (PL4000) - 2400mm x 1200mm - All Thicknesses
General Purpose
Moisture Resistant Plasterboard - 2400mm x 1200mm - All Thicknesses
General Purpose
Fire Resistant Plasterboard - 2400mm x 1200mm - All Thicknesses
General Purpose
Sound Acoustic Plasterboard - 1200mm x 2400mm - All Thicknesses
General Purpose
Plasterboard Tapered Edge - All Thicknesses
Soprema
Soprema Sopratherm PL4000 Insulated Plasterboard - 1200mm x 2400mm
Supplying insulation for all types of homes and businesses across the UK!
From DIY to Large-Scale Projects
National Insulation Supplies offer an extensive selection of insulation products from leading manufacturers like Celotex, Kingspan, Knauf, Rockwool, and Recticel and much more.
Explore our diverse range of products tailored for various applications, including floor insulation, wall insulation, roof insulation and cavity wall insulation.
Our loft insulation options include a variety of premium products, such as loft roll designed to enhance energy efficiency in your building and even loft boards.
We also provide specialised products such as fire protection insulation, acoustic insulation, and eco-friendly solutions. Whether you need insulated plasterboard, building membranes, or fire-stopping insulation.
Choosing the right fire-resistant insulation is essential for improving fire safety in UK buildings. In this guide, discover the best fireproof and non-combustible insulation materials, including Rockwool, Nullifire, cavity barriers...
Choosing between silicone and acrylic fire resistant sealant depends on the joint, movement, environment and fire-stopping system. This guide compares both options and explains when products such as Nullifire FS702,...
PIR and mineral wool are two of the most popular insulation materials used in the UK, but they perform very differently. PIR boards are often chosen for high thermal performance...
Thinking about insulating your roof edges? This guide explains soffit insulation costs in the UK, average installation prices, insulation materials, energy-saving benefits, and the factors that affect costs. Learn how...
Choosing the right roof insulation can significantly reduce energy bills and improve comfort in UK homes. This guide compares PIR insulation boards and mineral wool insulation, covering thermal performance, fire...
Learn how to insulate a shed properly with this practical UK guide. Discover the best insulation materials for shed walls, floors and roofs, including PIR boards, mineral wool and foil...
A vapour control layer helps reduce the risk of hidden condensation inside walls, roofs and floors by controlling moisture movement from the warm side of a building into colder areas....
Learn how to choose the best fire resistant sealant for your project. Compare silicone vs acrylic firestop sealants, key applications, fire ratings, and top Nullifire products available from National Insulation...
