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Internal Wall Insulation

Competitive Trade Pricing with quantity discounts. Online supplier of Internal Wall Insulation solutions from top UK brands like Kingspan Internal Wall Insulation, Knauf Internal Wall Insulation, Celotex Internal Wall Insulation, Xtratherm Internal Wall Insulation, Rockwool, Recticel, Isover and much more.

About

The insulation of the walls has a significant impact on the energy efficiency of the building. It is one of the most important investments that can be done to reduce energy costs. The Internal wall insulation can be used in both commercial and residential properties to improve indoor comfort.

Have a browse of our stock and filter by thickness or coverage on the left-hand side of the page. If you’d like to talk through the suitability of some Insulation Boards for your project, or get a quantity discount quotation please call us on 02039519012 , email sales@insulationstoreonline.co.uk or Live Chat - Lowest UK Prices.

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16 products
newest
100mm Rockwool RWA45 Acoustic Insulation Slab ( Pack of 4 )
High-quality resin bonded stone wool slabs Pack Length: 4800mmPack Width: 2400mmPack coverage: 2.88m2Thickness: 100mmQuantity: Pack Of 4
£ 41.22
£ 49.46 Inc VAT
75mm Rockwool RWA45 Acoustic Insulation Slab ( Pack of 6 )
High-quality resin bonded stone wool slabs Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 75mmQuantity: Pack Of 6
£ 41.22
£ 49.46 Inc VAT
60mm Rockwool RWA45 Acoustic Insulation Slab ( Pack of 8 )
High-quality resin bonded stone wool slabs Pack Length: 9600mmPack Width: 4800mmPack coverage: 5.76m2Thickness: 60mmQuantity: Pack Of 8
£ 41.22
£ 49.46 Inc VAT
50mm Rockwool RWA45 Acoustic Insulation Slab ( Pack of 9 )
High-quality resin bonded stone wool slabs Pack Length: 10800mmPack Width: 5400mmPack coverage: 6.48m2Thickness: 50mmQuantity: Pack Of 9
£ 41.22
£ 49.46 Inc VAT
40mm Rockwool RWA45 Acoustic Insulation Slab ( Pack of 12 )
High-quality resin bonded stone wool slabs Pack Length: 14400mmPack Width: 7200mmPack coverage: 8.64m2Thickness: 30mmQuantity: Pack Of 12
£ 41.22
£ 49.46 Inc VAT
30mm Rockwool RWA45 Acoustic Insulation Slab ( Pack of 12 )
High-quality resin bonded stone wool slabs Pack Length: 14400mmPack Width: 7200mmPack coverage: 8.64m2Thickness: 30mmQuantity: Pack Of 12
£ 41.22
£ 49.46 Inc VAT
25mm Rockwool RWA45 Acoustic Insulation Slab ( Pack of 16 )
High-quality resin bonded stone wool slabs Pack Length: 19200mmPack Width: 9600mmPack coverage: 11.52m2Thickness: 25mmQuantity: Pack Of 16
£ 41.22
£ 49.46 Inc VAT
180mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 3) - image
180mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 3)
Non-combustible multi-use insulation slab Pack Length: 3600mmPack Width: 1800mmPack coverage: 2.16m2Thickness: 180mmQuantity: Pack Of 3
Last known price: £39.80
£ 47.76 Inc VAT
140mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 4) - image
140mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 4)
Non-combustible multi-use insulation slab Pack Length: 4800mmPack Width: 2400mmPack coverage: 2.88m2Thickness: 140mmQuantity: Pack Of 4
Last known price: £33.88
£ 40.66 Inc VAT
140mm Rockwool Flexi Insulation Slab - 1200mm x 400mm (Pack of 4) - image
140mm Rockwool Flexi Insulation Slab - 1200mm x 400mm (Pack of 4)
Non-combustible multi-use insulation slab Pack Length: 4800mmPack Width: 1600mmPack coverage: 1.92m2Thickness: 140mmQuantity: Pack Of 4
Last known price: £37.60
£ 45.12 Inc VAT
120mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6) - image
120mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6)
Non-combustible multi-use insulation slab Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 120mmQuantity: Pack Of 6
Last known price: £51.76
£ 62.11 Inc VAT
100mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6) - image
100mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6)
Non-combustible multi-use insulation slab Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 100mmQuantity: Pack Of 6
Last known price: £44.66
£ 53.59 Inc VAT
100mm Rockwool Flexi Insulation Slab - 1200mm x 400mm (Pack of 6) - image
100mm Rockwool Flexi Insulation Slab - 1200mm x 400mm (Pack of 6)
Non-combustible multi-use insulation slab Pack Length: 7200mmPack Width: 2400mmPack coverage: 2.88m2Thickness: 100mmQuantity: Pack Of 6
Last known price: £37.20
£ 44.64 Inc VAT
90mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6) - image
90mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 6)
Non-combustible multi-use insulation slab Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 90mmQuantity: Pack Of 8
Last known price: £33.88
£ 40.66 Inc VAT
70mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 8) - image
70mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 8)
Non-combustible multi-use insulation slab Pack Length: 9600mmPack Width: 4800mmPack coverage: 5.76m2Thickness: 70mmQuantity: Pack Of 8
£ 52.44
£ 62.93 Inc VAT
60mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 12) - image
60mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (Pack of 12)
Non-combustible multi-use insulation slab Pack Length: 14400mmPack Width: 7200mmPack coverage: 8.64m2Thickness: 60mmQuantity: Pack Of 12
£ 58.12
£ 69.74 Inc VAT
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