From £5,938
PORTCLIFF BUILDING SERV LTD is an established extension buildering business in BS21. We come highly recommended and provide competitive quotes for ...
From £5,978
Neil Causon & Son is an established and experienced local extension builder in BS21. Please contact us for a free, no obligation quote and competit...
From £5,866
A J READ ESQ is a trusted extension builder serving customers in BS21 and the surrounding area. Contact us to today to get a competitive quote for ...
From £6,034
MICHAEL PANG BUILDING SERVICES is an established and experienced local extension builder in BS21. Please contact us for a free, no obligation quote...
From £6,186
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £6,394
'Imagination was created to deliver perfection. Our business philosophy is that you should never have to compromise on quality. Through our years o...
From £6,282
Need an Extension Builder in BS21? Creative Developments South West has been helping local clients (20 mile radius) with their extension buildering...
From £6,106
Creative Design and Build SW is a reputable company with over 30 years of experience in the construction industry. We are dedicating team providing...
From £6,738
Relax... you have found a reliable extension builder in BS21. MERIT SW LTD is a friendly and reliable company based in BS21 who consider no job as ...
From £6,090
MOORLAND DESIGN & BUILD LTD are here to help customers who need an Extension Builder in BS21. We offer a competitive rate to complete all your exte...

Concrete foundations range from the £5,866 (A J READ ESQ based in BS20) to £6,738 (MERIT SW LTD based in Bs20) in BS21.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in BS21 by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Concrete Foundations near Clevedon | £29 | £219 |
| Concrete Foundations near North Somerset | £29 | £216 |
| Concrete Foundations near Portishead | £29 | £221 |
| Concrete Foundations near Weston-super-Mare | £29 | £216 |
| Concrete Foundations near Clifton | £29 | £222 |
| Concrete Foundations near Bristol | £29 | £222 |
| Concrete Foundations near Newport | £37 | £200 |
| Concrete Foundations near Bradley Stoke | £29 | £221 |
| Concrete Foundations near Cardiff | £30 | £190 |
| Concrete Foundations near Penarth | £31 | £189 |
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 - £17,411

Two storey extension - £87,867

Build a timber frame extension - £25,911

Build a swimming pool - £80,911

Single storey extension - £53,224

Side return extension - £40,501

Install an RSJ - £2,111

Outbuilding - £9,911

Build a Mansard loft conversion - £51,911

Loft conversion - £32,918

Build a kitchen extension - £41,911

Hip to gable loft conversion - £41,911

Granny annexe - £86,911

Garden office - £9,911

Convert a Garage - £15,911

Garage - £18,411

Build a flat roof extension - £21,911

Build a dormer loft conversion - £41,911

Concrete foundations - £6,161

Convert a bungalow loft - £28,911

Convert a basement - £36,501