From £17,484
Brickfast Builders is an established extension buildering business in B6. We come highly recommended and provide competitive quotes for your work.<...
From £17,204
Trusted and professional extension builder in B6. Experienced in all extension buildering work and keeping within budget and on quote. Probuild360 ...
From £17,140
Renka is an established and experienced local extension builder in B6. Please contact us for a free, no obligation quote and competitive rates. Cov...
From £17,196
Need an Extension Builder in B6? BellTrim Wood Products has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
From £17,204
Experienced extension builder ready to quote for your work. Spectrum Homes is the best extension builder in B6. No obligation free quotes and many ...
From £17,372
Relax... you have found a reliable extension builder in B6. BORDO Design is a friendly and reliable company based in B6 who consider no job as too ...
From £17,084
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,204
AJ Home Improvements is an established extension buildering business in B6. We come highly recommended and provide competitive quotes for your work...
From £17,364
Need to find an Extension Builder near you for all your extension buildering work?
LC BUILDING SERVICES provides a local, trusted extension...
From £17,212
Add Surveyors is a trusted extension builder serving customers in B6 and the surrounding area. Contact us to today to get a competitive quote for e...

Underpinning ranges from £17,084 (Parkfield Building Services Ltd based in B6) to £17,484 (Brickfast Builders based in B6), 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 B6 by posting a job with HaMuch and we will send it to extension builders in B6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Birmingham | £29 | £227 |
| Underpin A Building near Smethwick | £29 | £226 |
| Underpin A Building near Sutton Coldfield | £29 | £228 |
| Underpin A Building near West Bromwich | £29 | £227 |
| Underpin A Building near Oldbury | £29 | £227 |
| Underpin A Building near Sandwell | £29 | £229 |
| Underpin A Building near Rowley Regis | £29 | £226 |
| Underpin A Building near Wednesbury | £29 | £227 |
| Underpin A Building near Halesowen | £29 | £227 |
| Underpin A Building near Walsall | £29 | £226 |
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 - £17,246

Two storey extension - £87,620

Build a timber frame extension - £25,746

Build a swimming pool - £80,746

Single storey extension - £49,928

Side return extension - £38,647

Install an RSJ - £1,946

Outbuilding - £9,746

Build a Mansard loft conversion - £51,746

Loft conversion - £31,373

Build a kitchen extension - £41,746

Hip to gable loft conversion - £41,746

Granny annexe - £86,746

Garden office - £9,746

Convert a Garage - £15,746

Garage - £18,246

Build a flat roof extension - £21,746

Build a dormer loft conversion - £41,746

Concrete foundations - £5,996

Convert a bungalow loft - £28,746

Convert a basement - £34,647