From £17,244
Relax... you have found a reliable extension builder in B31. Platinum Build is a friendly and reliable company based in B31 who consider no job as ...
From £17,444
Wilson & Son is an established and experienced local extension builder in B31. Please contact us for a free, no obligation quote and competitive ra...
From £17,228
Trusted and professional extension builder in B31. Experienced in all extension buildering work and keeping within budget and on quote. D & S Decor...
From £17,100
Need to find an Extension Builder near you for all your extension buildering work?
D Broomhall provides a local, trusted extension builderi...
From £17,404
Trusted and professional extension builder in B31. Experienced in all extension buildering work and keeping within budget and on quote. Ciara Const...
From £17,196
Experienced extension builder ready to quote for your work. Plowman & Wood is the best extension builder in B31. No obligation free quotes and many...
From £17,460
SM&S General Property Repairs is a trusted extension builder serving customers in B31 and the surrounding area. Contact us to today to get a compet...
From £17,300
Need to find an Extension Builder near you for all your extension buildering work?
Michael Locke Garage Doors provides a local, trusted ext...
From £17,380
Relax... you have found a reliable extension builder in B31. Tucker Construction is a friendly and reliable company based in B31 who consider no jo...
From £17,188
Experienced extension builder ready to quote for your work. Buildtech is the best extension builder in B31. No obligation free quotes and many happ...

Underpinning ranges from £17,100 (D Broomhall based in B45) to £17,460 (SM&S General Property Repairs based in B38), 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 B31 by posting a job with HaMuch and we will send it to extension builders in B31.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Halesowen | £29 | £227 |
| Underpin A Building near Oldbury | £29 | £227 |
| Underpin A Building near Smethwick | £29 | £226 |
| Underpin A Building near Rowley Regis | £29 | £226 |
| Underpin A Building near Birmingham | £29 | £227 |
| Underpin A Building near Bromsgrove | £31 | £237 |
| Underpin A Building near West Bromwich | £29 | £227 |
| Underpin A Building near Brierley Hill | £28 | £223 |
| Underpin A Building near Stourbridge | £28 | £223 |
| Underpin A Building near Solihull | £29 | £231 |
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 - £17,294

Two storey extension - £87,692

Build a timber frame extension - £25,794

Build a swimming pool - £80,794

Single storey extension - £50,888

Side return extension - £39,187

Install an RSJ - £1,994

Outbuilding - £9,794

Build a Mansard loft conversion - £51,794

Loft conversion - £31,823

Build a kitchen extension - £41,794

Hip to gable loft conversion - £41,794

Granny annexe - £86,794

Garden office - £9,794

Convert a Garage - £15,794

Garage - £18,294

Build a flat roof extension - £21,794

Build a dormer loft conversion - £41,794

Concrete foundations - £6,044

Convert a bungalow loft - £28,794

Convert a basement - £35,187