From £17,628
Relax... you have found a reliable extension builder in B73. Sanwood is a friendly and reliable company based in B73 who consider no job as too big...
From £17,372
Need to find an Extension Builder near you for all your extension buildering work?
itsoktu Ltd provides a local, trusted extension builderi...
From £17,508
Founded in 2009 by educated interior and fashion tailor, Stuart Iain Greive, Itsoktu Ltd is a well-established and all-rounded design Company built...
From £17,156
Guild Building Solutions Ltd is a well established, reliable and trustworthy company with over 25 years' experience. We are based in Sutton Coldfie...
From £17,068
Dave Mattock is an established and experienced local extension builder in B73. Please contact us for a free, no obligation quote and competitive ra...
From £17,444
Need an Extension Builder in B73? D&J Advanced Builders has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
From £17,252
Experienced extension builder ready to quote for your work. Sas Building Solutions is the best extension builder in B73. No obligation free quotes ...
From £17,212
Add Surveyors is a trusted extension builder serving customers in B73 and the surrounding area. Contact us to today to get a competitive quote for ...
From £17,196
To whom it may concern where I small family business been in business for 36 years we carry out very good workmanship all our staff are prese...
From £17,252
Experienced extension builder ready to quote for your work. SELF BUILD is the best extension builder in B73. No obligation free quotes and many hap...

Underpinning ranges from £17,068 (Dave Mattock based in B44) to £17,628 (Sanwood based in B73), 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 B73 by posting a job with HaMuch and we will send it to extension builders in B73.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Sutton Coldfield | £29 | £228 |
| Underpin A Building near Birmingham | £29 | £227 |
| Underpin A Building near Walsall | £29 | £226 |
| Underpin A Building near Smethwick | £29 | £226 |
| Underpin A Building near West Bromwich | £29 | £227 |
| Underpin A Building near Sandwell | £29 | £229 |
| Underpin A Building near Brownhills | £28 | £225 |
| Underpin A Building near Wednesbury | £29 | £227 |
| Underpin A Building near Bloxwich | £28 | £225 |
| Underpin A Building near Darlaston | £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 - £17,309

Two storey extension - £87,713

Build a timber frame extension - £25,809

Build a swimming pool - £80,809

Single storey extension - £51,176

Side return extension - £39,349

Install an RSJ - £2,009

Outbuilding - £9,809

Build a Mansard loft conversion - £51,809

Loft conversion - £31,958

Build a kitchen extension - £41,809

Hip to gable loft conversion - £41,809

Granny annexe - £86,809

Garden office - £9,809

Convert a Garage - £15,809

Garage - £18,309

Build a flat roof extension - £21,809

Build a dormer loft conversion - £41,809

Concrete foundations - £6,059

Convert a bungalow loft - £28,809

Convert a basement - £35,349