Underpin your home in RH20 from £17,372

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 RH20?

Underpin a building cost in RH20 - Sort by rates or availability

Main Construction

From £17,940

(last active 01/10/26)

Need to find an Extension Builder near you for all your extension buildering work?

Main Construction provides a local, trusted extension bu...

Whites Carpentry & Building

From £17,508

(last active 01/10/26)

Whites Carpentry & Building prides in delivering an excellent extension buildering service and value for money in RH20 and the surrounding areas. ...

MPS Home Improvements Ltd

From £17,372

(last active 29/09/26)

Need an Extension Builder in RH20? MPS Home Improvements Ltd has been helping local clients (20 mile radius) with their extension buildering jobs f...

H P Building Services Sussex

From £17,492

Member since August 2026

H P Building Services Sussex is a one-stop solution for all your extension buildering needs. Establish over 10 years ago and covering 20 miles arou...

R S Construction (Surrey)

From £17,668

(last active 22/09/26)

R S Construction (Surrey) is an established extension buildering business in RH20. We come highly recommended and provide competitive quotes for yo...

Shercoriana London Ltd

From £17,532

(last active 22/09/26)

We are a family run business we 40 years experience delivering multiple projects from new developments . Extension. Loft conversion. Including foun...

Futureways Design and Build

From £17,612

(last active 19/09/26)

Futureways Design and Build are here to help customers who need an Extension Builder in RH20. We offer a competitive rate to complete all your exte...

Alan Pacy Builder

From £17,700

(last active 18/09/26)

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

GD Project Management Ltd

From £17,876

(last active 18/09/26)

Giles Dixon is an experienced Project Manager with over 30 years experience, having worked from the ground up starting in 1984 as an apprentice ele...

Regent Property Holdings Ltd

From £17,628

(last active 18/09/26)

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

Cost of underpinning in RH20

Estimates for underpin a building near RH20

Underpinning ranges from £17,372 (MPS Home Improvements Ltd based in RH14) to £17,940 (Main Construction based in BN12), 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 RH20 by posting a job with HaMuch and we will send it to extension builders in RH20.


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Estimates for common extension builder jobs in RH20;

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...