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10 bestExterior Caulksof October 2025

112M consumers helped this year.

11% off

1

Everbuild Stixall – Extreme Power Sealant And Adhesive – Waterproof – Grey – 290ml

Everbuild Stixall – Extreme Power Sealant And Adhesive – Waterproof – Grey – 290ml

Everbuild Stixall – Extreme Power Sealant And Adhesive – Waterproof – Grey – 290ml

Everbuild

9.8

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18% off

2

Sika Sikaflex -522 Caravan and Motorhome Adhesive Sealant – Moisture Curing – Weather and Mould Resistant – White – 300ml

Sika Sikaflex -522 Caravan and Motorhome Adhesive Sealant – Moisture Curing – Weather and Mould Resistant – White – 300ml

Sika Sikaflex -522 Caravan and Motorhome Adhesive Sealant – Moisture Curing – Weather and Mould Resistant – White – 300ml

Sika

9.6

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38% off

3

Gorilla 1144110 All Conditions Sealant Silicone Clear 295ml

Gorilla 1144110 All Conditions Sealant Silicone Clear 295ml

Gorilla 1144110 All Conditions Sealant Silicone Clear 295ml

Gorilla

9.4

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4

Everbuild General Purpose Silicone Sealant – Waterproof – Suitable for Interior and Exterior Use – White – 280ml

Everbuild General Purpose Silicone Sealant – Waterproof – Suitable for Interior and Exterior Use – White – 280ml

Everbuild General Purpose Silicone Sealant – Waterproof – Suitable for Interior and Exterior Use – White – 280ml

Everbuild

9.2

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5

Haltons Expanding Foam Filler | Ready To Use | No Tools Required | Waterproof Caulk Spray Sealant for Walls, Cracks, Gaps, Holes in Brick, Wood, Metal | Strong & Reliable Repair Indoor & Outdoor (2pk)

Haltons Expanding Foam Filler | Ready To Use | No Tools Required | Waterproof Caulk Spray Sealant for Walls, Cracks, Gaps, Holes in Brick, Wood, Metal | Strong & Reliable Repair Indoor & Outdoor (2pk)

Haltons Expanding Foam Filler | Ready To Use | No Tools Required | Waterproof Caulk Spray Sealant for Walls, Cracks, Gaps, Holes in Brick, Wood, Metal | Strong & Reliable Repair Indoor & Outdoor (2pk)

Haltons

8.9

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OtherRelated productsUp to 11% off

Sika Everbuild Everflex 125 One Hour Cartridge - 125C3, White, 300 ml

Sika Everbuild Everflex 125 One Hour Cartridge - 125C3, White, 300 ml

Everbuild External Frame Sealant – Interior And Exterior Use – Permanently Flexible – Mould-Resistant – White – 290ml

Everbuild External Frame Sealant – Interior And Exterior Use – Permanently Flexible – Mould-Resistant – White – 290ml

EVO-STIK Window & Door Frame Sealant, Waterproof, Flexible, Overpaintable, Lasts up to 15 Years, Colour: White, Size: 290ml

EVO-STIK Window & Door Frame Sealant, Waterproof, Flexible, Overpaintable, Lasts up to 15 Years, Colour: White, Size: 290ml

Everbuild Everflex 450 Premium+ Builders Silicone Sealant – Waterproof Seal – Suits Most Building Materials – Internal and External Use – Grey – 300ml

Everbuild Everflex 450 Premium+ Builders Silicone Sealant – Waterproof Seal – Suits Most Building Materials – Internal and External Use – Grey – 300ml

19% off

6

UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Ideal for Window and Door Frames, Weather Resistant and Waterproof Sealant, White, 1 x 392g Cartridge

UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Ideal for Window and Door Frames, Weather Resistant and Waterproof Sealant, White, 1 x 392g Cartridge

UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Ideal for Window and Door Frames, Weather Resistant and Waterproof Sealant, White, 1 x 392g Cartridge

Unibond

8.7

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5% off

7

UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Suitable for Use on Various Materials*, Weather Resistant and Waterproof Sealant, Translucent, 1 x 294g Cartridge

UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Suitable for Use on Various Materials*, Weather Resistant and Waterproof Sealant, Translucent, 1 x 294g Cartridge

UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Suitable for Use on Various Materials*, Weather Resistant and Waterproof Sealant, Translucent, 1 x 294g Cartridge

Unibond

8.4

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8

EVO-STIK Multipurpose Silicone Sealant, Waterproof + Mould Resistant, for Interior and Exterior Use, Colour: Clear

EVO-STIK Multipurpose Silicone Sealant, Waterproof + Mould Resistant, for Interior and Exterior Use, Colour: Clear

EVO-STIK Multipurpose Silicone Sealant, Waterproof + Mould Resistant, for Interior and Exterior Use, Colour: Clear

EVO-STIK

8.1

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63% off

9

Everbuild Everflex Roof and Gutter Sealant – Butyl-Based Sealant and Adhesive for Roofing – Excellent Weathering Properties – Black – 295 ml

Everbuild Everflex Roof and Gutter Sealant – Butyl-Based Sealant and Adhesive for Roofing – Excellent Weathering Properties – Black – 295 ml

Everbuild Everflex Roof and Gutter Sealant – Butyl-Based Sealant and Adhesive for Roofing – Excellent Weathering Properties – Black – 295 ml

Everbuild

7.8

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10

XFasten Silicone Sealant Waterproof Black Cartridge, 10.1 oz (Single Pack) Black Caulking Silicone Adhesive Sealant Cartridge for RV, General Use, Window, Door, Glass, Automotive Leak Sealing

XFasten Silicone Sealant Waterproof Black Cartridge, 10.1 oz (Single Pack) Black Caulking Silicone Adhesive Sealant Cartridge for RV, General Use, Window, Door, Glass, Automotive Leak Sealing

XFasten Silicone Sealant Waterproof Black Cartridge, 10.1 oz (Single Pack) Black Caulking Silicone Adhesive Sealant Cartridge for RV, General Use, Window, Door, Glass, Automotive Leak Sealing

XFasten

7.6

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