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 £17,340
Need to find an Extension Builder near you for all your extension buildering work?
Willbuild provides a local, trusted extension buildering...
From £17,348
Infinity Property Improvements Limited are here to help customers who need an Extension Builder in WS8. We offer a competitive rate to complete all...
From £17,508
Empire Builders is an established and experienced local extension builder in WS8. Please contact us for a free, no obligation quote and competitive...
From £17,300
Relax... you have found a reliable extension builder in WS8. Infinite Renewable Energy Ltd is a friendly and reliable company based in WS8 who cons...
From £17,252
Need an Extension Builder in WS8? C A MILLS BUILDING CONTR LTD has been helping local clients (20 mile radius) with their extension buildering jobs...
From £17,436
Zygi&Bob Builders is an established extension buildering business in WS8. We come highly recommended and provide competitive quotes for your work.<...
From £17,596
RJB BUILDERS is an established and experienced local extension builder in WS8. Please contact us for a free, no obligation quote and competitive ra...
From £17,268
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,356
BEACON BUILDERS are here to help customers who need an Extension Builder in WS8. We offer a competitive rate to complete all your extension builder...

Underpinning ranges from £16,796 (Saxonworld Ltd based in WS9) to £17,596 (RJB BUILDERS based in WS124), 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 WS8 by posting a job with HaMuch and we will send it to extension builders in WS8.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Brownhills | £28 | £225 |
| Underpin A Building near Burntwood | £29 | £229 |
| Underpin A Building near Bloxwich | £28 | £225 |
| Underpin A Building near Walsall | £29 | £226 |
| Underpin A Building near Cannock | £28 | £227 |
| Underpin A Building near Lichfield | £29 | £226 |
| Underpin A Building near Darlaston | £29 | £226 |
| Underpin A Building near Willenhall | £29 | £225 |
| Underpin A Building near Wednesbury | £29 | £227 |
| Underpin A Building near Rugeley | £30 | £230 |
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 - £17,320

Two storey extension - £87,730

Build a timber frame extension - £25,820

Build a swimming pool - £80,820

Single storey extension - £51,400

Side return extension - £39,475

Install an RSJ - £2,020

Outbuilding - £9,820

Build a Mansard loft conversion - £51,820

Loft conversion - £32,063

Build a kitchen extension - £41,820

Hip to gable loft conversion - £41,820

Granny annexe - £86,820

Garden office - £9,820

Convert a Garage - £15,820

Garage - £18,320

Build a flat roof extension - £21,820

Build a dormer loft conversion - £41,820

Concrete foundations - £6,070

Convert a bungalow loft - £28,820

Convert a basement - £35,475