Best Expanding Foams Deals Online in the UK (25 Deals Found)

Last Updated - 09/09/2026 Sort By:

Best Choice
fischer

New
fischer 569386 B3 Triple X Expanding Hand Foam, Yellow, 670ml (Pack of 1)
Rapid-hardening foam reduces processing time

£5.49
Gorilla Filler

New
Gorilla Filler 500ml - Expanding Foam Filler | Weatherproof - Ideal for Pipes, Windows, Doors (For Internal & External U
WEATHERPROOF, SEALS & FILLS: The Original Gorilla Filler, is a ready to use foam filler, quickly and easily squeeze into

£5.38
New
EXPANDING FOAM BOND & FILL SEALING FILLING INSULATING GAP FILLER SPRAY 500ML NEW
Bond and Fill Expanding Foam Filler 500ml. Bond & Fill Expanding Foam Filler 500ml. 500ML GORILLA FILLER WHITE EXPANDING

£6.99
Gorilla Filler

New
GORILLA FILLER WEATHERPROOF EXPANDING FOAM FILLER
Waterproof expanding foam filler

£5.65
New
TAIGA Black Pond & Waterfall Expanding Foam 500ml | Hand Held, Fish Safe
TAIGA Black Landscape Pond & Waterfall Expanding Foam 500ml - Hand Held. The Taiga Landscape Expanding Foam is a black l

£16.31
Truly PVC Supplies

New
Soudal Gap Filler PU Polyurethane Expanding Foam (Gun Grade) - 12 Pack
Ready to use from can - one-component with no mixing

£49.97
Best Value
GORILLA

New
Gorilla Heavy Duty Expanding Foam 353ml - Multi-Purpose, Durable & Seals out Air, Moisture & Pests | No Shrinkage & Maxi
*For outdoor applications, cured foam must be painted or coated. Exposure to sunlight may cause discolouration.

£7.49 £9.49
New
SOUDAL EXPANDING FOAM GUN GRADE GAP FILLER PU FOAM DURAVALVE 750ML UK Seller
Soudal Soudafoam Gun Grade Expanding Foam Gap Filler is a polyurethane foam filler designed for gap filling applications

£8.98
Soudal

New
EXPANDING FOAM FILLER GUN GRADE (BOX OF 12) 750ML SOUDAL
EXPANDING FOAM FILLER GUN GRADE BOX OF 12 750ML SOUDAL

£50.38
New
TRADE SOUDAL GAP FILLER GUN GRADE EXPANDING FOAM PU FOAM 750ML UK Seller
Its gun-grade consistency gives smooth, accurate dispensing with minimal waste, making it ideal for trade use where spee

£45.98
Truly PVC Supplies

New
Soudal Gap Filler PU Polyurethane Expanding Foam (Gun Grade) - 6 Pack
Ready to use from can - one-component with no mixing

£30.98
JKG Unknown

New
2 x Cans Of The Original Gorilla Filler Weatherproof expanding foam 500ml Each
2 X Cans Of The Original Gorilla Filler Weatherproof Expanding Foam 500Ml Each

£9.40 £9.90
New
5x TRADE SOUDAL GAP FILLER GUN GRADE EXPANDING FOAM PU FOAM 750ML + FREE GUN
Shake the aerosol can for at least 20 seconds. Fit the gun on the adapter. Fill holes and cavities for 65 %, as the foam

£31.00
fischer

New
fischer Triple X Hand Expanding Foam 560g Yellow
EXPANDING FOAM FILLER: fischer Triple X Hand Foam expands for filling gaps, cavities and joints in building and repair a

£4.99
New
EXPANDED POLYSTYRENE FOAM PACKING SHEETS *ALL SIZES*
(They are also widely used in the construction industry as insulation. NO OF SHEETS) - ALL AT THE BEST PRICES! Colour: W

£440.00
Soudal

New
Soudal 750ml Champagne Gap Filler Expanding Foam Handheld Spray with Nozzle & Gloves (2)

£12.78
New
2x Professional Heavy Duty Expanding PU Foam Gun Application Applicator Foam Gun
Featuring a Stainless Steel Nozzle this Gun allows expanding foam to be applied quickly and with precision. 2x Foam Gun.

£7.99
New
POLYSTYRENE FOAM EPS SHEETS *Any Size/Qty* Expanded Packing Insulation Poly Foam
POLYSTYRENE SHEETS. Commonly used under hard flooring such as concrete slabs, screeds or a chipboard finish. Providing t

£492.00
New
3x Soudal Handheld Trade Expanding Gap Filler Foam, Champagne, 750ML
Ideal for both trade and DIY use, this high-expansion foam effectively fills cavities, cracks, and voids around windows,

£16.49
New
Soudal Genius Gun Insulation / Insulating Expanding Foam 750ml
Insulating Foam Genius - 750ml. Easy to use and can be operated with one hand. Re-useable for up to 6-weeks after first

£79.99
New
Soudal Genius Gun Gap Filling All-Purpose Polyurethane Expanding Foam 500ml
All purpose, hand held gap filling expanding PU Foam with patented "Genius Gun" application system. Re-usable up to 6 we

£48.99
New
12x TRADE SOUDAL GAP FILLER GUN GRADE EXPANDING FOAM PU FOAM 750ML + FREE GUN
Shake the aerosol can for at least 20 seconds. Fit the gun on the adapter. Fill holes and cavities for 65 %, as the foam

£58.00
New
Gorilla Filler Expanding Foam fills seals cracks gaps 500mlx2 FREE RM24 TRACKED
Can be cut, sawn, painted or sanded. The Original Gorilla Filler. Seals & Fills. Squeezes Into Gap &fills Them Tight.

£9.91
New
2 x 500ml EXPANDING FOAM PU UK FILLER FOR BONDING FILLING SEALING & INSULATING
Roof tile voids and draught points around the home. Gaps around pipe entries through walls. Gaps around window frames, d

£10.44 £10.99
New
Demsun P90 Thermcoat Insulation Spray Foam Set: 12 cans + cleaner+applicator gun
The Demsun P90 Thermcoat Insulation Spray Foam Set is a comprehensive DIY solution for filling, sealing, and insulating

£160.00

25 Expanding Foams deals are available from: Amazon, eBay stores, starting from £4.99.
The biggest discount we found is 21% on Gorilla Heavy Duty Expanding Foam 353ml - Multi-Purpose, Durable & Seals out Air, Moisture & Pests | No Shrinkage & Maximum Seal | For Indoor & Outdoor* Use at Amazon.
The lowest price we found is £4.99 while the highest is £492.00.
Prices for the best Expanding Foams deals average at £64.62.
Last updated on September 9, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Expanding Foams.