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Select your affordable Radstock extension builder
Radstock, BA3
K STOBBS BUILDING CONTRACTOR is an established extension buildering business in Radstock. We come highly recommended and provide competitive quotes...
BURNELL BUILDERS LTD is an established extension buildering business in Radstock. We come highly recommended and provide competitive quotes for you...
Trusted and professional extension builder in Radstock. Experienced in all extension buildering work and keeping within budget and on quote. CETH C...
From £17,604
Need an Extension Builder in Radstock? RHayes Roofing has been helping local clients (20 mile radius) with their extension buildering jobs for many...
From £17,796
Hughie Crumlish
All ways on time keep our customers 100% satisfied
From £17,372
Need an Extension Builder in Radstock? Marptree Design & Build limited has been helping local clients (20 mile radius) with their extension builder...
From £17,316
Experienced extension builder ready to quote for your work. J CROZIER (BUILDERS) LTD is the best extension builder in Radstock. No obligation free ...
From £18,428
Mark Richards
We are a family run small business, we only use fully time served tradespeople. Having been building for 22years a still having a passion for quali...
From £17,468
Our building services company Wellsway Building Company was established in 2017. Since then we have been helping customers in Bath and the surround...
From £17,452
Relax... you have found a reliable extension builder in Radstock. DAWSON BUILDING LIMITED is a friendly and reliable company based in Radstock who ...

Underpinning ranges from £17,316 (J CROZIER (BUILDERS) LTD based in BA2) to £18,428 (Unique Design & Build based in BS39), 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 Radstock by posting a job with HaMuch and we will send it to extension builders in Radstock.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bath | £32 | £249 |
| Underpin A Building near Frome | £33 | £263 |
| Underpin A Building near Keynsham | £33 | £251 |
| Underpin A Building near Trowbridge | £34 | £266 |
| Underpin A Building near Kingswood | £34 | £257 |
| Underpin A Building near Bristol | £33 | £255 |
| Underpin A Building near Clifton | £33 | £255 |
| Underpin A Building near North Somerset | £32 | £245 |
| Underpin A Building near South Gloucestershire | £34 | £260 |
| Underpin A Building near Chippenham | £34 | £258 |
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 - £17,618

Two storey extension - £88,178

Build a timber frame extension - £26,118

Build a swimming pool - £81,118

Single storey extension - £57,368

Side return extension - £42,832

Install an RSJ - £2,318

Outbuilding - £10,118

Build a Mansard loft conversion - £52,118

Loft conversion - £34,860

Build a kitchen extension - £42,118

Hip to gable loft conversion - £42,118

Granny annexe - £87,118

Garden office - £10,118

Convert a Garage - £16,118

Garage - £18,618

Build a flat roof extension - £22,118

Build a dormer loft conversion - £42,118

Concrete foundations - £6,368

Convert a bungalow loft - £29,118

Convert a basement - £38,832