From £16,972
33 years experience focussing on full home refurbishments, extensions, kitchens & bathrooms, rubber roofing, floor screed & loft conversion...
From £17,444
Need to find an Extension Builder near you for all your extension buildering work?
Avonvale Garage Doors provides a local, trusted extensio...
From £17,372
Welcome to WWM Property Solutions, where we specialize in creating exceptional outdoor and indoor spaces tailored to your unique lifestyle. As a le...
From £18,300
Member since December 2022
Hi, My name is Gus Sperin. I am self-employed electrician, and I have been running my business since 2010. I have been in the electrical ...
From £17,204
AJ Home Improvements is an established extension buildering business in B34. We come highly recommended and provide competitive quotes for your wor...
From £17,484
Brickfast Builders is an established extension buildering business in B34. We come highly recommended and provide competitive quotes for your work....
From £17,484
Need to find an Extension Builder near you for all your extension buildering work?
Atwal Building Services Ltd provides a local, trusted ex...
From £17,444
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,260
R.G Construction is an established and experienced local extension builder in B34. Please contact us for a free, no obligation quote and competitiv...
From £17,164
Experienced extension builder ready to quote for your work. S B Evans Bricklaying Contractor Ltd is the best extension builder in B34. No obligatio...

Underpinning ranges from £16,972 (Simms Building Services Ltd based in CV2) to £18,300 (Sperin Interiors based in B66), 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 B34 by posting a job with HaMuch and we will send it to extension builders in B34.
| 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 Solihull | £29 | £231 |
| Underpin A Building near Smethwick | £29 | £226 |
| Underpin A Building near Knowle | £31 | £241 |
| Underpin A Building near Oldbury | £29 | £227 |
| Underpin A Building near West Bromwich | £29 | £227 |
| Underpin A Building near Tamworth | £33 | £288 |
| Underpin A Building near Sandwell | £29 | £229 |
| 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 - £17,413

Two storey extension - £87,869

Build a timber frame extension - £25,913

Build a swimming pool - £80,913

Single storey extension - £53,256

Side return extension - £40,519

Install an RSJ - £2,113

Outbuilding - £9,913

Build a Mansard loft conversion - £51,913

Loft conversion - £32,933

Build a kitchen extension - £41,913

Hip to gable loft conversion - £41,913

Granny annexe - £86,913

Garden office - £9,913

Convert a Garage - £15,913

Garage - £18,413

Build a flat roof extension - £21,913

Build a dormer loft conversion - £41,913

Concrete foundations - £6,163

Convert a bungalow loft - £28,913

Convert a basement - £36,519