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Insulation Prices — BuildWatch
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Insulation
Compare insulation prices across 3 merchants.
📦 11 products
🏪 3 merchants
📊 Updated 23/03/2026
Timber & Sheet Materials
(18)
Plasterboard & Plastering
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Insulation
(11)
Cement, Aggregates & Concrete
(10)
Bricks & Blocks
(10)
Roofing
(8)
Copper & Plumbing
(10)
Electrical
(8)
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Fixings & Fasteners
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Sealants, Adhesives & Tapes
(8)
Doors & Windows
(8)
Product
Screwfix
Wickes
B&Q
Travis Perkins
100mm Rockwool RWA45 Acoustic Sound Insulation Slab (x16 Slabs)
—
£72.00
cheapest
£172.32
—
Save 139%
25mm Unilin Xtratherm Thin-R PIR Insulation Board 2400mm x 1200mm (7/pack)
—
£25.00
£25.00
cheapest
£180.60
—
Save 622%
75mm PIR Insulation Board with Aluminium Foil Layer 1200x450mm - Rigid Thermal Panel for Wall, Floor, Roof and Shed Insulation
—
—
£17.95
—
Celotex GA4000 PIR Insulation Board 2400 x 1200 x 100mm
2400x1200mm board
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—
—
—
Celotex GA4000 PIR Insulation Board 2400 x 1200 x 50mm
2400x1200mm board
—
—
—
—
Jabfloor 70 Polystyrene Insulation Board 2400 X 1200 X 25Mm
—
£8.50
—
—
Knauf Eko Loft insulation roll, (L)9.72m (W)1.14m (T)100mm
—
£26.00
£25.00
cheapest
—
Save 4%
Knauf Insulation Dritherm%C2%Ae 37 Standard Cavity Slab 100 X 455 X 1200Mm
—
£40.00
—
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PACK OF 15 (Total 15 Units) - Premium Space Saving Roof / Loft Insulation Roll - 7000mm x 1160mm x 170mm
—
£75.00
£75.00
cheapest
£8861.48
£8861.48
—
Save 11715%
PACK OF 5 Superwall 36 Cavity Wall Insulation - 50mm/87.4 m2 (Superglass)
—
£72.00
£72.00
cheapest
£593.00
—
Save 724%
Pack of 5 (Total 5 Units) - 50mm Cavity Wall Slab 36 - 1200mm (L) x 455mm (W) x 50mm (T)
—
£90.00
£18.00
cheapest
£877.57
£175.51
—
Save 875%
Price Trends (30 days)
100mm Rockwool RWA45 Acoustic Sound Insulation Slab (x16 Slabs)
25mm Unilin Xtratherm Thin-R PIR Insulation Board 2400mm x 1200mm (7/pack)
75mm PIR Insulation Board with Aluminium Foil Layer 1200x450mm - Rigid Thermal Panel for Wall, Floor, Roof and Shed Insulation
Celotex GA4000 PIR Insulation Board 2400 x 1200 x 100mm
Celotex GA4000 PIR Insulation Board 2400 x 1200 x 50mm
Jabfloor 70 Polystyrene Insulation Board 2400 X 1200 X 25Mm
Knauf Eko Loft insulation roll, (L)9.72m (W)1.14m (T)100mm
Knauf Insulation Dritherm%C2%Ae 37 Standard Cavity Slab 100 X 455 X 1200Mm
PACK OF 15 (Total 15 Units) - Premium Space Saving Roof / Loft Insulation Roll - 7000mm x 1160mm x 170mm
Price chart will appear once we have 2+ days of data
PACK OF 5 Superwall 36 Cavity Wall Insulation - 50mm/87.4 m2 (Superglass)
Pack of 5 (Total 5 Units) - 50mm Cavity Wall Slab 36 - 1200mm (L) x 455mm (W) x 50mm (T)
Note:
Prices shown include VAT. Per-unit prices (e.g. per m², per kg) enable fair comparison across different pack sizes.