From £6,114
Obsession design and build is a full building services company with an in house team combining extensive experienceand exquisite aspirations. Our t...
From £6,410
Experienced extension builder ready to quote for your work. LEES BUILDING CONTRACTORS LTD is the best extension builder in BS23. No obligation free...
From £6,290
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £5,298
Need to find an Extension Builder near you for all your extension buildering work?
P K BUILDING provides a local, trusted extension builder...
From £5,938
PORTCLIFF BUILDING SERV LTD is an established extension buildering business in BS23. We come highly recommended and provide competitive quotes for ...
From £6,250
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £6,034
MICHAEL PANG BUILDING SERVICES is an established and experienced local extension builder in BS23. 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 £6,010
Trusted and professional extension builder in BS23. Experienced in all extension buildering work and keeping within budget and on quote. L J Iles C...

Concrete foundations range from the £5,298 (P K BUILDING based in TA8) to £6,610 (A K BISHOP based in BS24) in BS23.
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 BS23 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 Weston-super-Mare | £29 | £216 |
| Concrete Foundations near Clevedon | £29 | £219 |
| Concrete Foundations near North Somerset | £29 | £216 |
| Concrete Foundations near Penarth | £31 | £189 |
| Concrete Foundations near Cardiff | £30 | £190 |
| Concrete Foundations near Portishead | £29 | £221 |
| Concrete Foundations near Bridgwater | £27 | £212 |
| Concrete Foundations near Barry | £29 | £189 |
| Concrete Foundations near Newport | £37 | £200 |
| Concrete Foundations near Clifton | £29 | £222 |
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 - £17,364

Two storey extension - £87,796

Build a timber frame extension - £25,864

Build a swimming pool - £80,864

Single storey extension - £52,280

Side return extension - £39,970

Install an RSJ - £2,064

Outbuilding - £9,864

Build a Mansard loft conversion - £51,864

Loft conversion - £32,475

Build a kitchen extension - £41,864

Hip to gable loft conversion - £41,864

Granny annexe - £86,864

Garden office - £9,864

Convert a Garage - £15,864

Garage - £18,364

Build a flat roof extension - £21,864

Build a dormer loft conversion - £41,864

Concrete foundations - £6,114

Convert a bungalow loft - £28,864

Convert a basement - £35,970