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Cavity and Internal Wall Insulation
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When you’re looking for thermal insulation for a construction project, or you need to improve energy efficiency in an existing building, it’s worth investing in quality cavity wall insulation. In our wide range of wall insulation and cavity insulation you’ll find glass mineral wool rolls and slabs, resin-bonded slabs, and stone wool slab options. All of our wall insulation is certified Euroclass A1 fire resistant and is suitable for external wall insulation and partition wall insulation. You’ll also find acoustic insulation to aid privacy and noise reduction from adjoining properties, above and below. With a choice of sizes and ready cut options you’ll find what you need to suit your building application.
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5 (1 review)
Knauf Acoustic Roll Ready Cut 50mm 13.50m 2 x 600 16.2m2 Per Pack
Retail price
£86.30
per pack£71.92 ex. vat
£43.15per item
Trade price
£77.89
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Product Code: 545715
Knauf Insulation DriTherm 32 Cavity Insulation Slab 150mm 1200mm x 455mm
Retail price
£78.37
per pack£65.31 ex. vat
£19.59per item
Trade price
£70.52
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5 (2 reviews)
Knauf Dritherm Cavity Slab 37 100mm 455 x 1200mm 6.55m2 Per Pack
Retail price
£65.18
per pack£54.32 ex. vat
£5.43per item
Trade price
£55.87
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5 (3 reviews)
Knauf Acoustic Roll Ready Cut 100mm 10.30m 2 x 600 12.36m2 Per Pack
Retail price
£115.85
per pack£96.54 ex. vat
Trade price
£104.40
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5 (1 review)
Knauf Insulation DriTherm 37 Cavity Insulation Slab 50mm 1200mm x 455mm
Retail price
£56.00
per pack£46.67 ex. vat
£4.67per item
Trade price
£48.01
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5 (2 reviews)
Knauf Insulation DriTherm 37 Cavity Insulation Slab 75mm 1200mm x 455mm
Retail price
£42.76
per pack£35.63 ex. vat
£5.34per item
Trade price
£36.66
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Product Code: 767866
Rockwool RWA45 50mm Acoustic Insulation Slab 1200mm x 600mm 6.48m2/ Pack
Retail price
£55.21
per pack£46.01 ex. vat
Trade price
£52.56
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5 (1 review)
Rockwool Sound Insulation Slab 1200 x 600 x 50mm (8.64m2)
Retail price
£95.80
per pack£79.83 ex. vat
Trade price
£83.24
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5 (1 review)
Recticel Eurowall Cavity Insulation Board 1200 x 450 x 50mm
Retail price
£13.26
per sheet£11.05 ex. vat
Trade price
£10.60
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4.9 (17 reviews)
Rockwool RWA45 Semi-Rigid Acoustic Insulation Slab 100mm x 1200mm x 600mm (2....
Retail price
£58.09
per pack£48.41 ex. vat
Trade price
£52.28
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Product Code: 227170
Recticel Eurowall+ Insulation Board 1200 x 450 x 90mm
Retail price
£29.53
per sheet£24.61 ex. vat
Trade price
£28.13
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Product Code: 654815
Rockwool Ablative Coated Batt 50mm x 1200mm x 600mm 0.72m2/ Pack
Retail price
£35.23
each£29.36 ex. vat
Trade price
£33.55
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Product Code: 848622
Knauf Dritherm Cavity Slab 37 150mm 455 x 1200mm 4.368m2
Retail price
£67.12
per pack£55.93 ex. vat
Trade price
£57.53
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Product Code: 848595
Knauf Acoustic Roll Ready Cut 25mm 11.10m 4 x 600 26.64m2 Per Pack
Retail price
£106.84
per pack£89.03 ex. vat
£26.71per item
Trade price
£101.76
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Product Code: 848594
Knauf Dritherm Cavity Slab 32 125mm 455 x 1200mm 2.184m2 Per Pack
Retail price
£65.21
per pack£54.34 ex. vat
£16.30per item
Trade price
£55.87
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Product Code: 773732
Rockwool Sound Insulation Slab 1200 x 600 x 100mm (4.32m²)
Retail price
£90.98
each£75.82 ex. vat
Trade price
£81.89
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5 (2 reviews)
Rockwool Sound Insulation Slab 1200 x 400 x 100mm (2.88m2)
Retail price
£57.89
per pack£48.24 ex. vat
Trade price
£52.10
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Product Code: 848611
Knauf Dritherm Cavity Slab 32 100mm 455 x 1200mm 3.276m2 Per Pack
Retail price
£56.39
per pack£46.99 ex. vat
£9.40per item
Trade price
£48.70
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Product Code: 848608
Knauf Acoustic Roll Ready Cut 100mm 10.30m 3 x 400 12.36m2 Per Pack
Retail price
£118.19
per pack£98.49 ex. vat
Trade price
£112.55
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Product Code: 381869
75mm x 1200mm x 450mm Kingspan Kooltherm Partial Fill Cavity Wall Insulation ...
Retail price
£150.43
per pack£125.36 ex. vat
£25.07per item
Trade price
£143.28
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Product Code: 122531
Knauf Insulation FrameTherm Roll 32 2800mm x 1140mm x 140mm
Retail price
£156.07
per pack£130.06 ex. vat
£78.03per item
Trade price
£140.48
Inc. VAT
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Product Code: 734014
Knauf Insulation OmniFit® Slab 50mm 1200x600 8.64m2
Retail price
£58.30
per pack£48.58 ex. vat
£4.86per item
Trade price
£55.56
Inc. VAT
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Product Code: 447900
Actis Hybris Panels 105mm 4 Pack 5.49m2
Retail price
£83.99
per pack£69.99 ex. vat
£21.00per item
Trade price
£79.99
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Product Code: 221584
Knauf Insulation Rocksilk RS45 Slab 1200mm x 600mm x 100mm
Retail price
£87.23
per pack£72.69 ex. vat
£17.45per item
Trade price
£78.50
Inc. VAT
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Product Code: 227158
Recticel Eurowall Cavity Insulation Board 1200 x 450 x 100mm
Retail price
£15.74
per sheet£13.12 ex. vat
Trade price
£12.60
Inc. VAT
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Product Code: 227057
Recticel Eurowall Cavity Insulation Board 1200 x 450 x 90mm
Retail price
£15.74
per sheet£13.12 ex. vat
Trade price
£12.60
Inc. VAT
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Product Code: 221587
Knauf Insulation Rocksilk RS45 50mm 7.20m2
Retail price
£77.00
per pack£64.17 ex. vat
£7.70per item
Trade price
£73.34
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Product Code: 295474
Knauf Insulation Masonry Party Wall Slab 100mm 6.55m2
Retail price
£84.88
per pack£70.73 ex. vat
£7.07per item
Trade price
£80.81
Inc. VAT
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Product Code: 848623
Knauf Acoustic Roll Ready Cut 75mm 14.50m 2 x 600 17.4m2 Per Pack
Retail price
£186.08
per pack£155.07 ex. vat
Trade price
£177.25
Inc. VAT
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Product Code: 734011
Knauf Insulation OmniFit® Slab 70mm 1200x600 5.76m2
Retail price
£204.98
per pack£170.82 ex. vat
£25.62per item
Trade price
£195.19
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Showing 1—30 items of 51
Knauf Insulation Rocksilk RS45 50mm 7.20m2
An A1 Non-Combustible Rock Mineral Wool slab, manufactured using Knauf Insulation's unique ECOSE® Technology and designed for use in multiple applications including internal partitions, timber and metal studs, and in between timber rafters and floor joists.
£77.00 per pack (Inc. VAT)
Knauf Insulation OmniFit® Insulation Slab 1200mm x 600mm x 100mm
An A1 Non-Combustible multi-application Glass Mineral Wool slab, manufactured using Knauf Insulation's unique ECOSE® Technology, and designed for use in multiple applications in both timber and steel frame construction to allow flexibility across a range of projects.
£80.20 per pack (Inc. VAT)
75mm x 2400mm x 1200mm Celotex PIR Insulation Board GA4000
Celotex GA4000 is an easy to install polyisocyanurate
(PIR) insulation board with excellent thermal performance,
featuring a low emissivity foil facing. Available in thicknesses
from 50mm to 100mm, it can be considered for roof, wall
and floor applications.
£57.71 per sheet (Inc. VAT)
50mm x 1200mm x 450mm Ecotherm Eco-cavity Cavity Wall Insulation CAV50
Partial fill cavity wall PIR insulation. Fibre free rigid insulation core with aluminium foil composite to both sides. The boards are conveniently sized to co-ordinate with brick and block dimensions and allow the insertion of wall ties at the appropriate spacing.
£17.16 per sheet (Inc. VAT)
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