Building Insulation

  • Rockwool 25mm RWA45 Slab Insulation Sheet
    Rockwool RWA45 Insulation Slab 25mm x 600mm x 1200mm x 16 Sheets
    £151.87 £126.56
  • Rockwool 30mm RWA45 Slab Insulation Sheet
    Rockwool RWA45 Insulation Slab 30mm x 600mm x 1200mm x 12 Sheets
    £87.86 £73.22
  • Rockwool 40mm RWA45 Slab Insulation Sheet
    Rockwool RWA45 Insulation Slab 40mm x 600mm x 1200mm x 12 Sheets
    £113.89 £94.91
  • Rockwool 50mm RWA45 Slab Insulation Sheet
    Rockwool RWA45 Insulation Slab 50mm x 600mm x 1200mm x 9 Sheets
    £104.14 £86.78
  • Rockwool 60mm RWA45 Slab Insulation Sheet
    Rockwool RWA45 Insulation Slab 60mm x 600mm x 1200mm x 8 Sheets
    £113.38 £94.48
  • A pack of ROCKWOOL RWA45 Insulation Slabs, partially unwrapped, revealing the yellowish stone wool material inside. The packaging is white with red "ROCKWOOL" branding repeated vertically across the sides. The pack contains six sheets, each measuring 75mm
    ROCKWOOL RWA45 Insulation Slabs - 209290 (75mm, 4.32 Sq M Pack)
    £60.59 £50.49
  • Rockwool Prorox SL930, 6 Pack, 75mm x 600mm x 1200mm
    Rockwool Prorox SL930, 6 Pack, 75mm x 600mm x 1200mm
    £81.22 £67.68
  • EcoTherm PR40 Eco-Versal 40mm x 1200mm x 2400mm PIR insulation board displayed on a plain background, featuring a rigid, light-colored panel with aluminum foil facings, used for thermal insulation in roofs and walls
    Ecotherm PR40 Eco Versal 40mm x 1200mm x 2400mm
    £33.70 £28.08
  • Two stacked Rockwool RWA45 Insulation Slabs, 1200mm x 600mm, showcasing their textured, beige stone wool surface against a black background, designed for thermal, acoustic, and fire protection in UK buildings.
    Rockwool RWA45 Insulation Slab 1200x600mm - Thermal & Fire UK
    As low as £59.00 £49.17
  • 3D render of ROCKWOOL Twin Roll 200mm non-combustible stone wool loft and roof insulation roll, pre-split into two 100mm layers, beige fibrous material on black background.
    ROCKWOOL Twin Roll 200mm Non-Combustible Loft Roof Insulation Stone Wool Rolls UK
    £136.02 £113.35
  • A roll of ArmaFlex Duct Plus 13mm Self-Adhesive Sheet insulation, black in colour, partially unrolled on a white background, showcasing its flexible elastomeric foam material designed for HVAC duct insulation.
    ArmaFlex Duct Plus 13mm Self-Adhesive Insulation Sheet for HVAC
    £1,644.84 £1,370.70
  • Roll of black Armaflex insulation sheet partially unrolled on a white background, showcasing its thickness and flexibility for pipe protection.
    Armaflex Duct Plus 19mm Self Adhesive Sheet 12m x 1.5m
    £1,528.67 £1,273.89
  • Isover APR 1200 Acoustic Partition Roll 50mm x 1200 x 13m
    Isover APR 1200 Acoustic Partition Roll 50mm x 1200 x 13m
    £59.23 £49.36
  • A coiled roll of 19mm aluminium banding, showcasing its shiny, silver finish against a black background, is ideal for securing pipe insulation.
    19mm Aluminium Banding for Pipe Insulation - Durable 2kg Coil
    £33.07 £27.56
  • A 50 mm thick pack of Rockwool Ductslab insulation is partially unwrapped to reveal the yellowish stone wool material inside—the white packaging with "ROCKWOOL" branding repeated in red text around the sides.
    Rockwool Ductslab 50mm Insulation 4.8m² - HVAC Ducting Slab
    £148.87 £124.06
  • Rockwool Duct Slab 40mm
    Rockwool Duct Slab Foiled 40mm Thick 6 Sq m Pack 1000 x 600mm
    £141.78 £118.15
  • A wrapped package of yellow Rockwool mineral wool insulation, featuring red and white branding labels on white plastic.
    Rockwool Flexi Insulation Slab 50mm x 1.2m x 600mm Pack of 12
    £89.47 £74.56
  • Rockwool Insulation Flexi Slab. A wrapped package of yellow Rockwool mineral wool insulation, featuring red and white branding labels on white plastic.
    Rockwool Flexi Insulation Slab 100mm x 1.2m x 600mm Pack of 6
    £111.74 £93.12
  • 50mm Rockwool Ablative Coated Batt 50mm x 600mm x 1200mm
    Rockwool Ablative Coated Batt 50mm x 600mm x 1200mm
    £48.72 £40.60
  • A roll of Rockwool Ductwrap Insulation wrapped in white plastic packaging with red text and logos. The packaging displays the Rockwool brand name, a triangular logo, and icons indicating fire resistance (A1 non-combustible), thermal insulation, acoustic p
    Rockwool DuctWrap Insulation
    As low as £79.03 £65.86
  • Rockwool DuctWrap Insulation 1m x 5m x 25mm 2 roll pack (10 sq m)
    Rockwool DuctWrap Insulation 1m x 5m x 25mm 2 roll pack (10 sq m)
    £79.03 £65.86
  • Rockwool DuctWrap Insulation 1m x 4m x 40mm 2 roll pack (8 sq m)
    Rockwool DuctWrap Insulation 1m x 4m x 40mm 2 roll pack (8 sq m)
    £116.35 £96.96
  • Lunaflex Ductwrap Insulation Roll 16M x 1200 x 25mm
    Lunaflex Ductwrap Insulation Roll 16M x 1200 x 25mm
    £77.92 £64.93
  • A yellow roll of Luna Flex Mineral Wool insulation is displayed, with one roll still wrapped in its original yellow plastic packaging and another partially unrolled to reveal the soft, fluffy yellow insulation material within. The packaging is labeled “LU
    Lunaflex Ductwrap Insulation Roll 12M x 1200 x 40mm
    £72.97 £60.81

Building Insulation for Roof & Walls

As one of the UK's leading insulation suppliers, we have a great range of loft, duct and roof and wall insulation products available to buy online. Our range of building insulation is suitable for all areas of construction.   

Are you a trade customer involved in a new build project? We can supply and deliver a vast range of insulation components straight to your site. We provide different types of building insulation from all the leading manufacturers including Rockwool, Kingspan, Celotex, Isover and Knauff. So whether you're looking for industrial or fibreglass insulation, we've got you covered.

Need solid insulation boards for insulating stud walls? Our Phenolic insulation boards from Kingspan Kooltherm are ideal for the job. Just cut the boards to the size required and fit and forget.

If you need some loft insulation, then our Rockwool Insulation Rolls are ideal. This medium density mineral wool is available in some thicknesses. It provides excellent thermal and acoustic protection to roof and attic spaces. We also stock a wide range of insulation sheets and rolls which are suitable for everything from soundproofing to duct insulation.

Features & Benefits

  • A wide range of products available from draught excluders to ceiling boards.
  • Colossal stock holding with fast delivery.
  • Very Competitive prices with an additional discount for Trade Account Holders.
  • Palletised Delivery direct to site available.

Browse our range of insulation today. If you can't see the item you require, please call our friendly sales team on 0161 775 1190 who will be happy to help advise!