From £5,866
Need to find an Extension Builder near you for all your extension buildering work?
Max Sandford & San provides a local, trusted extension b...
From £5,826
Need to find an Extension Builder near you for all your extension buildering work?
G.I Davies & Son provides a local, trusted extension bui...
From £5,986
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £5,874
D.A Fisher General Builders is an established and experienced local extension builder in Carmarthenshire. Please contact us for a free, no obligati...
From £6,186
Need to find an Extension Builder near you for all your extension buildering work?
N Morgans & Son Ltd provides a local, trusted extension ...
From £6,026
Relax... you have found a reliable extension builder in Carmarthenshire. ANTIS CONSTRUCTION is a friendly and reliable company based in Carmarthens...
From £6,154
Relax... you have found a reliable extension builder in Carmarthenshire. Asj Building Services is a friendly and reliable company based in Carmarth...
From £6,098
Need an Extension Builder in Carmarthenshire? Graham & Co Home Improvement Specialists has been helping local clients (20 mile radius) with their e...
From £5,706
The Home Extension Company has earned its reputation as being one of the leading Home Development Companies in and around South Wales. We pride our...
From £5,442
I have 26 years experience in the building industry and owned my company for 24 years, i am able to carry out most buildin...

Concrete foundations range from the £5,442 (R i daniels based in SA14) to £6,186 (N Morgans & Son Ltd based in SA33) in Carmarthenshire.
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 Carmarthenshire 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 Carmarthenshire | £26 | £205 |
| Concrete Foundations near Carmarthen | £26 | £205 |
| Concrete Foundations near Llanelli | £29 | £231 |
| Concrete Foundations near Gorseinon | £29 | £228 |
| Concrete Foundations near Swansea | £29 | £230 |
| Concrete Foundations near Neath | £30 | £225 |
| Concrete Foundations near Neath Port Talbot | £31 | £224 |
| Concrete Foundations near Pembrokeshire | £19 | £163 |
| Concrete Foundations near Port Talbot | £31 | £227 |
| Concrete Foundations near Milford Haven | £18 | £159 |
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 - £17,166

Two storey extension - £87,500

Build a timber frame extension - £25,666

Build a swimming pool - £80,666

Single storey extension - £48,328

Side return extension - £37,747

Install an RSJ - £1,866

Outbuilding - £9,666

Build a Mansard loft conversion - £51,666

Loft conversion - £30,623

Build a kitchen extension - £41,666

Hip to gable loft conversion - £41,666

Granny annexe - £86,666

Garden office - £9,666

Convert a Garage - £15,666

Garage - £18,166

Build a flat roof extension - £21,666

Build a dormer loft conversion - £41,666

Concrete foundations - £5,916

Convert a bungalow loft - £28,666

Convert a basement - £33,747