BEST DEALS THIS WEEK

10 Best External Sealants For Windows And Doors - May 2026

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Last Updated: 27-05-2026

1

UniBond Outdoor Window and Door Frame Sealant, Premium Silicone Sealant Suitable for Use on Various Materials*, Waterproof and Weather Resistant, White, 1 x 392g Cartridge

UniBond Outdoor Window and Door Frame Sealant, Premium Silicone Sealant Suitable for Use on Various Materials*, Waterproof and Weather Resistant, White, 1 x 392g Cartridge

Unibond

9.8

9.8

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2

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

Sika

9.6

9.6

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3

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

EVO-STIK

9.5

9.5

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4

Unibond Outdoor - Window & Door Frame - Brown 392g

Unibond Outdoor - Window & Door Frame - Brown 392g

Unibond

9.2

9.2

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5

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

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

Sika

9.1

9.1

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6

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

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

Everbuild

8.8

8.8

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7

BOSTIK Pro-Sealant S41 Multi-Purpose Neutral Cure Silicone Sealant, For Window & Door Frame Joints, Internal & External Use, Colour: Anthracite, 310ml

BOSTIK Pro-Sealant S41 Multi-Purpose Neutral Cure Silicone Sealant, For Window & Door Frame Joints, Internal & External Use, Colour: Anthracite, 310ml

Bostik

8.6

8.6

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8

UniBond Indoor Window & Door Frame Sealant, White Acrylic Sealant, Paintable from 1 Hour, 1 x 467g Cartridge

UniBond Indoor Window & Door Frame Sealant, White Acrylic Sealant, Paintable from 1 Hour, 1 x 467g Cartridge

Unibond

8.4

8.4

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9

1x Bond It Rosewood WP70 Neutral Cure Silicone Sealant for External Wood, Aluminium and uPVC Door and Window Frames

1x Bond It Rosewood WP70 Neutral Cure Silicone Sealant for External Wood, Aluminium and uPVC Door and Window Frames

Truly PVC Supplies

8.2

8.2

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10

EVO-STIK Frame Silicone Sealant Brown - 290ml - Ideal for Door and Window Frames - Highly Waterproof - Permanently Flexible - Lasts up to 25 Years

EVO-STIK Frame Silicone Sealant Brown - 290ml - Ideal for Door and Window Frames - Highly Waterproof - Permanently Flexible - Lasts up to 25 Years

EVO-STIK

8.1

8.1

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