Underpin your home in SW20 from £17,420

If your home needs underpinning due to subsidence, it can be a worrying time for you. Luckily, specialist builders can help you underpin your house and stabilise it for years to come. But how much will it cost in SW20?

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Underpin a building cost in SW20

J&J Building Solutions

From £17,548

(rates verified 18/09/26)

Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in SW20. No obligation free quotes...

WHITE EAGLE CONSTRUCTION LTD

From £17,548

(last active 27/09/26)

Trusted and professional extension builder in SW20. Experienced in all extension buildering work and keeping within budget and on quote. WHITE EAGL...

Samuele Paolini

From £17,892

(last active 27/09/26)

Need an Extension Builder in SW20? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for many ye...

LCD Pixel Construction Ltd

From £17,660

(last active 27/09/26)

Homeowners look no further if you want a qualified extension builder to work in your home. LCD Pixel Construction Ltd are tidy and neat, providing ...

J Stevens Roofing & Guttering

From £17,828

(last active 27/09/26)

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Masonic Plumbing and Heating Ltd

From £17,420

(last active 27/09/26)

Masonic Plumbing and Heating Ltd are here to help customers who need an Extension Builder in SW20. We offer a competitive rate to complete all your...

Gb construction

From £17,692

(last active 27/09/26)

Gb construction are here to help customers who need an Extension Builder in SW20. We offer a competitive rate to complete all your extension build...

CC&D BUILDING LTD

From £17,684

(last active 26/09/26)

Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in SW20. No obligation free quotes and ...

T M Builder

From £17,812

(last active 26/09/26)

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Rafix Building

From £18,060

(last active 26/09/26)

Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...

Cost of underpinning in SW20

Estimates for underpin a building near SW20

Underpinning ranges from £17,420 (Masonic Plumbing and Heating Ltd based in BR2) to £18,060 (Rafix Building based in EN4), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.

Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.

Get quotes to underpin your home in SW20 by posting a job with HaMuch and we will send it to extension builders in SW20.


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Estimates for common extension builder jobs in SW20;

Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

More extensions & conversions cost guides...