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Cavity and Internal Wall Insulation
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Shop our high quality cavity and internal wall insulation products to stop heat from escaping through your walls. Our products can be used to insulate a wide range of applications, available in a choice of lengths & widths.
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5 (1 review)
Knauf Insulation DriTherm 32 Cavity Insulation Slab
From £29.27 each
From £24.39 ex vat
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4.8 (5 reviews)
Knauf Insulation DriTherm 37 Cavity Insulation Slab
From £24.71 per pack
From £20.59 ex vat
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Knauf Insulation Acoustic Partition Roll
From £43.25 each
From £36.04 ex vat
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Rockwool Sound Insulation Slab 1200 x 600
From £56.40 per pack
From £47.00 ex vat
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Recticel Eurowall Cavity Insulation Wall Board 1200mm x 450mm
From £5.21 per sheet
From £4.34 ex vat
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Knauf Insulation Loft Roll 44 Short Length Combi Cut
From £23.56 each
From £19.63 ex vat
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4.9 (16 reviews)
Rockwool RWA45 Semi-Rigid Acoustic Insulation Slab 100mm x 1200mm x 600mm (2....
£35.90 per pack
£29.92 ex vat
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Knauf Insulation Rocksilk RS45
From £37.43 per pack
From £31.19 ex vat
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5 (1 review)
Knauf Insulation FrameTherm Roll 35
From £50.66 per pack
From £42.22 ex vat
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Recticel Eurowall+ Insulation Board 1200mm x 460mm
From £31.51 per sheet
From £26.26 ex vat
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Knauf Insulation Masonry Party Wall Slab
From £39.30 per pack
From £32.75 ex vat
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Knauf Insulation Timber Frame Party Wall Slab
From £75.67 per pack
From £63.06 ex vat
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Showing 1—26 items of 26
Supreme Prestressed Textured Concrete Lintel 65mm x 100mm x 1050mm P100
Precision made, high performance structural concrete lintels
£14.15 each (Inc. VAT)
Celotex GA4100 General Application Insulation Board 100mm x 1200mm x 2400mm (2.88m²/Sheet)
This multi-purpose insulation board is suitable for a number of applications including roof, wall and floor systems. Featuring foil facings, this board is manufactured from tough polyisocyanurate, with an ideal mix of blowing agents acquiring zero ozone depletion potential and a low global warming impact.
£67.43 per sheet (Inc. VAT)
Celotex TB4020 General Application Insulation Board 20mm x 1200mm x 2400mm (2.88m²/Sheet)
This TB4000 PIR insulation board by Celotex is ideal for overcoming thermal bridging. This board is a thin 20mm high-performance board suitable for use in a number of applications including roof, wall and floor systems.
£33.84 per sheet (Inc. VAT)
Celotex XR4200 General Application Insulation Board 200mm x 2400mm x 1200mm (2.88m²/Sheet)
This multi-purpose insulation board is suitable for a number of applications including roof, wall and floor systems. Featuring foil facings, this board is manufactured from tough polyisocyanurate, with an ideal mix of blowing agents acquiring zero ozone depletion potential and a low global warming impact.
£221.83 per sheet (Inc. VAT)