From £17,340
Need to find an Extension Builder near you for all your extension buildering work?
Willbuild provides a local, trusted extension buildering...
From £17,436
Zygi&Bob Builders is an established extension buildering business in WS3. We come highly recommended and provide competitive quotes for your work.<...
From £17,252
Need an Extension Builder in WS3? C A MILLS BUILDING CONTR LTD has been helping local clients (20 mile radius) with their extension buildering jobs...
From £17,508
Empire Builders is an established and experienced local extension builder in WS3. Please contact us for a free, no obligation quote and competitive...
From £17,164
Experienced extension builder ready to quote for your work. S B Evans Bricklaying Contractor Ltd is the best extension builder in WS3. No obligatio...
From £17,356
BEACON BUILDERS are here to help customers who need an Extension Builder in WS3. We offer a competitive rate to complete all your extension builder...
From £16,796
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,532
Need an Extension Builder in WS3? Elite Property Renovation Midlands Ltd has been helping local clients (20 mile radius) with their extension build...
From £17,260
R.G Construction is an established and experienced local extension builder in WS3. Please contact us for a free, no obligation quote and competitiv...
From £17,484
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Underpinning ranges from £16,796 (Saxonworld Ltd based in WS9) to £17,532 (Elite Property Renovation Midlands Ltd based in WV11), 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 WS3 by posting a job with HaMuch and we will send it to extension builders in WS3.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bloxwich | £28 | £225 |
| Underpin A Building near Walsall | £29 | £226 |
| Underpin A Building near Brownhills | £28 | £225 |
| Underpin A Building near Willenhall | £29 | £225 |
| Underpin A Building near Darlaston | £29 | £226 |
| Underpin A Building near Wednesbury | £29 | £227 |
| Underpin A Building near Cannock | £28 | £227 |
| Underpin A Building near Burntwood | £29 | £229 |
| Underpin A Building near Bilston | £29 | £226 |
| Underpin A Building near Sandwell | £29 | £229 |
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.

Underpin a building - £17,313

Two storey extension - £87,719

Build a timber frame extension - £25,813

Build a swimming pool - £80,813

Single storey extension - £51,256

Side return extension - £39,394

Install an RSJ - £2,013

Outbuilding - £9,813

Build a Mansard loft conversion - £51,813

Loft conversion - £31,995

Build a kitchen extension - £41,813

Hip to gable loft conversion - £41,813

Granny annexe - £86,813

Garden office - £9,813

Convert a Garage - £15,813

Garage - £18,313

Build a flat roof extension - £21,813

Build a dormer loft conversion - £41,813

Concrete foundations - £6,063

Convert a bungalow loft - £28,813

Convert a basement - £35,394