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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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Knauf Insulation DriTherm 32 Cavity Insulation Slab 150mm 1200mm x 455mm
Product Code: 545715
Knauf Insulation DriTherm 32 Cavity Insulation Slab 150mm 1200mm x 455mm
Retail price

£82.80

per pack
£69.00 ex. vat
£20.70per item
Trade price
£76.73
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Knauf Insulation FrameTherm Roll 35 3900mm x 1140mm x 140mm
5 (1 review)
Product Code: 705826
Knauf Insulation FrameTherm Roll 35 3900mm x 1140mm x 140mm
Retail price

£110.27

per pack
£91.89 ex. vat
£55.13per item
Trade price
£100.37
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Knauf Acoustic Roll Ready Cut 50mm 13.50m 2 x 600 16.2m2 Per Pack
5 (1 review)
Product Code: 848612
Knauf Acoustic Roll Ready Cut 50mm 13.50m 2 x 600 16.2m2 Per Pack
Retail price

£91.21

per pack
£76.01 ex. vat
£45.60per item
Trade price
£77.89
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Knauf Dritherm Cavity Slab 37 100mm 455 x 1200mm 6.55m2 Per Pack
5 (2 reviews)
Product Code: 848602
Knauf Dritherm Cavity Slab 37 100mm 455 x 1200mm 6.55m2 Per Pack
Retail price

£68.87

per pack
£57.39 ex. vat
£5.74per item
Trade price
£57.55
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Knauf Acoustic Roll Ready Cut 100mm 10.30m 2 x 600 12.36m2 Per Pack
5 (3 reviews)
Product Code: 848621
Knauf Acoustic Roll Ready Cut 100mm 10.30m 2 x 600 12.36m2 Per Pack
Retail price

£122.45

per pack
£102.04 ex. vat
Trade price
£104.40
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Rockwool RWA45 50mm Acoustic Insulation Slab 1200mm x 600mm 6.48m2/ Pack
Product Code: 767866
Rockwool RWA45 50mm Acoustic Insulation Slab 1200mm x 600mm 6.48m2/ Pack
Retail price

£57.23

per pack
£47.69 ex. vat
Trade price
£54.50
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Rockwool RWA45 Semi-Rigid Acoustic Insulation Slab 100mm x 1200mm x 600mm (2.88m2 pack)
4.9 (17 reviews)
Product Code: 961938
Rockwool RWA45 Semi-Rigid Acoustic Insulation Slab 100mm x 1200mm x 600mm (2....
Retail price

£60.28

per pack
£50.23 ex. vat
Trade price
£54.25
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Knauf Dritherm Cavity Slab 32 100mm 455 x 1200mm 3.276m2 Per Pack
Product Code: 848611
Knauf Dritherm Cavity Slab 32 100mm 455 x 1200mm 3.276m2 Per Pack
Retail price

£59.57

per pack
£49.64 ex. vat
£9.93per item
Trade price
£50.16
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Knauf Insulation DriTherm 37 Cavity Insulation Slab  75mm 1200mm x 455mm
5 (2 reviews)
Product Code: 497095
Knauf Insulation DriTherm 37 Cavity Insulation Slab 75mm 1200mm x 455mm
Retail price

£45.10

per pack
£37.58 ex. vat
£5.64per item
Trade price
£41.84
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Rockwool Sound Insulation Slab 1200 x 400 x 100mm (2.88m2)
5 (2 reviews)
Product Code: 773734
Rockwool Sound Insulation Slab 1200 x 400 x 100mm (2.88m2)
Retail price

£60.06

per pack
£50.05 ex. vat
Trade price
£54.05
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Recticel Eurowall+ Insulation Board 1200 x 450 x 90mm
Product Code: 227170
Recticel Eurowall+ Insulation Board 1200 x 450 x 90mm
Retail price

£37.38

per sheet
£31.15 ex. vat
Trade price
£35.60
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Rockwool Ablative Coated Batt 50mm x 1200mm x 600mm 0.72m2/ Pack
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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Knauf Insulation DriTherm 37 Cavity Insulation Slab  50mm  1200mm x 455mm
5 (1 review)
Product Code: 497107
Knauf Insulation DriTherm 37 Cavity Insulation Slab 50mm 1200mm x 455mm
Retail price

£59.34

per pack
£49.45 ex. vat
£4.95per item
Trade price
£54.86
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Recticel Eurowall Cavity Insulation Board 1200 x 450 x 50mm
5 (1 review)
Product Code: 227299
Recticel Eurowall Cavity Insulation Board 1200 x 450 x 50mm
Retail price

£16.76

per sheet
£13.97 ex. vat
Trade price
£13.40
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Rockwool Sound Insulation Slab 1200 x 600 x 100mm (4.32m2)
Product Code: 773732
Rockwool Sound Insulation Slab 1200 x 600 x 100mm (4.32m2)
Retail price

£94.45

each
£78.71 ex. vat
Trade price
£85.01
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Knauf Acoustic Roll Ready Cut 25mm 11.10m 4 x 600 26.64 m2 Per Pack
Product Code: 848595
Knauf Acoustic Roll Ready Cut 25mm 11.10m 4 x 600 26.64 m2 Per Pack
Retail price

£112.90

per pack
£94.08 ex. vat
Trade price
£101.76
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Recticel Eurowall Cavity Insulation Board 1200 x 450 x 100mm
Product Code: 227158
Recticel Eurowall Cavity Insulation Board 1200 x 450 x 100mm
Retail price

£19.92

per sheet
£16.60 ex. vat
Trade price
£15.94
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Knauf Insulation OmniFit® Slab 70mm 1200x600 5.76m2
Product Code: 734011
Knauf Insulation OmniFit® Slab 70mm 1200x600 5.76m2
Retail price

£216.76

per pack
£180.63 ex. vat
£27.09per item
Trade price
£197.15
Inc. VAT
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Recticel Eurowall Cavity Insulation Board 1200 x 450 x 60mm
Product Code: 227083
Recticel Eurowall Cavity Insulation Board 1200 x 450 x 60mm
Retail price

£17.28

per sheet
£14.40 ex. vat
Trade price
£13.82
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Actis Hybris Panels 140mm 2 Pack 2.74m2
Product Code: 447785
Actis Hybris Panels 140mm 2 Pack 2.74m2
Retail price

£57.53

per pack
£47.94 ex. vat
£28.77per item
Trade price
£54.78
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Actis Hybris Panels 170mm 2 Pack 2.74m2
Product Code: 447862
Actis Hybris Panels 170mm 2 Pack 2.74m2
Retail price

£69.82

per pack
£58.18 ex. vat
£34.91per item
Trade price available
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Knauf Insulation Masonry Party Wall Slab 100mm 6.55m2
Product Code: 295474
Knauf Insulation Masonry Party Wall Slab 100mm 6.55m2
Retail price

£89.76

per pack
£74.80 ex. vat
£7.48per item
Trade price
£81.61
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Recticel Eurowall Cavity Insulation Board 1200 x 450 x 75mm
Product Code: 227313
Recticel Eurowall Cavity Insulation Board 1200 x 450 x 75mm
Retail price

£19.45

per sheet
£16.21 ex. vat
Trade price
£15.55
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Knauf Insulation OmniFit® Slab 140mm 1200x600 2.88m2
Product Code: 734008
Knauf Insulation OmniFit® Slab 140mm 1200x600 2.88m2
Retail price

£110.76

per pack
£92.30 ex. vat
£27.69per item
Trade price
£104.76
Inc. VAT
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Knauf Insulation Timber Frame Party Wall Slab 60mm 11.52m2
Product Code: 295477
Knauf Insulation Timber Frame Party Wall Slab 60mm 11.52m2
Retail price

£172.66

per pack
£143.88 ex. vat
£10.79per item
Trade price
£163.31
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Ecotherm Eco-cavity 1200 x 450 x 75mm Cavity Wall Insulation CAV75
Product Code: 692893
Ecotherm Eco-cavity 1200 x 450 x 75mm Cavity Wall Insulation CAV75
Retail price

£26.51

per sheet
£22.09 ex. vat
Trade price
£25.24
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Rockwool Sound Insulation Slab 1200 x 600 x 50mm (8.64m2)
5 (1 review)
Product Code: 773730
Rockwool Sound Insulation Slab 1200 x 600 x 50mm (8.64m2)
Retail price

£99.53

per pack
£82.94 ex. vat
Trade price
£86.47
Inc. VAT
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Knauf Insulation FrameTherm Roll 35 6000mm x 1140mm x 90mm
Product Code: 665075
Knauf Insulation FrameTherm Roll 35 6000mm x 1140mm x 90mm
Retail price

£132.23

per pack
£110.19 ex. vat
£66.11per item
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Recticel Eurowall Cavity Insulation Board 1200 x 450 x 70mm
Product Code: 227129
Recticel Eurowall Cavity Insulation Board 1200 x 450 x 70mm
Retail price

£29.52

per sheet
£24.60 ex. vat
Trade price
£28.12
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Knauf Insulation FrameTherm Roll 32 4500mm x 1140mm x 90mm
Product Code: 949787
Knauf Insulation FrameTherm Roll 32 4500mm x 1140mm x 90mm
Retail price

£166.14

per pack
£138.45 ex. vat
£83.07per item
Trade price
£158.22
Inc. VAT
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Showing 1—30 items of 51