From £18,236
An experienced quality tradesman who is a member of the federation of master builders.
Any projects will be undertaken safely, professio...
From £16,548
Need to find an Extension Builder near you for all your extension buildering work?
P K BUILDING provides a local, trusted extension builder...
From £17,684
Trusted and professional extension builder in TA9. Experienced in all extension buildering work and keeping within budget and on quote. MICHAEL PAR...
From £17,756
TOTAL BUILDING SERVICES is an established extension buildering business in TA9. We come highly recommended and provide competitive quotes for your ...
From £17,540
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,356
Inspired Worx is a trusted extension builder serving customers in TA9 and the surrounding area. Contact us to today to get a competitive quote for ...
From £17,364
Obsession design and build is a full building services company with an in house team combining extensive experienceand exquisite aspirations. Our t...
From £17,628
Colin Clarke building:roofing has been successfully in business for 30 years. A vast amount of skills and knowledge has been gained and used to cre...
From £17,860
We are a medium sized Buisness with a huge reputation for quality workmanship
From £17,660
Experienced extension builder ready to quote for your work. LEES BUILDING CONTRACTORS LTD is the best extension builder in TA9. No obligation free ...

Underpinning ranges from £16,548 (P K BUILDING based in TA8) to £18,236 (WMP Builders based in TA9), 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 TA9 by posting a job with HaMuch and we will send it to extension builders in TA9.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bridgwater | £30 | £236 |
| Underpin A Building near Weston-super-Mare | £33 | £253 |
| Underpin A Building near North Somerset | £32 | £245 |
| Underpin A Building near Clevedon | £32 | £243 |
| Underpin A Building near Taunton | £31 | £242 |
| Underpin A Building near Penarth | £36 | £217 |
| Underpin A Building near South Somerset | £62 | £270 |
| Underpin A Building near Portishead | £33 | £247 |
| Underpin A Building near Barry | £33 | £218 |
| Underpin A Building near Cardiff | £35 | £219 |
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 - £17,563

Two storey extension - £88,095

Build a timber frame extension - £26,063

Build a swimming pool - £81,063

Single storey extension - £56,264

Side return extension - £42,211

Install an RSJ - £2,263

Outbuilding - £10,063

Build a Mansard loft conversion - £52,063

Loft conversion - £34,343

Build a kitchen extension - £42,063

Hip to gable loft conversion - £42,063

Granny annexe - £87,063

Garden office - £10,063

Convert a Garage - £16,063

Garage - £18,563

Build a flat roof extension - £22,063

Build a dormer loft conversion - £42,063

Concrete foundations - £6,313

Convert a bungalow loft - £29,063

Convert a basement - £38,211