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Need an Extension Builder in SA14? KD Construction has been helping local clients (20 mile radius) with their extension buildering jobs for many ye...
NTW BUILDING is an established and experienced local extension builder in SA14. Please contact us for a free, no obligation quote and competitive r...
Andy Power
Worked in building all my working life.
Worked as a builder 30 plus year's.
Am a hands on builder. Have built hou...
From £34,620
L2 Construction Limited is an established and experienced local extension builder in SA14. Please contact us for a free, no obligation quote and co...
From £35,880
RTC BUILDERS is a trusted extension builder serving customers in SA14 and the surrounding area. Contact us to today to get a competitive quote for ...
From £35,790
Rowan Evans Building Contractors is an established extension buildering business in SA14. We come highly recommended and provide competitive quotes...
From £33,000
Experienced extension builder ready to quote for your work. HAYDN LEWIS BUILDING SVS LTD is the best extension builder in SA14. No obligation free ...
From £36,420
Relax... you have found a reliable extension builder in SA14. Asj Building Services is a friendly and reliable company based in SA14 who consider n...
From £33,810
Custom Build Construction are here to help customers who need an Extension Builder in SA14. We offer a competitive rate to complete all your extens...

Comparing extension builders estimates for a Convert a basement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost to convert a basement in SA14 by posting a job with HaMuch and we will send it to extension builders in SA14.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Llanelli | £29 | £231 |
| Convert A Basement near Gorseinon | £29 | £228 |
| Convert A Basement near Swansea | £29 | £229 |
| Convert A Basement near Carmarthen | £26 | £205 |
| Convert A Basement near Carmarthenshire | £26 | £205 |
| Convert A Basement near Neath | £30 | £225 |
| Convert A Basement near Neath Port Talbot | £31 | £224 |
| Convert A Basement near Port Talbot | £31 | £227 |
| Convert A Basement near Maesteg | £38 | £283 |
| Convert A Basement near Pyle | £34 | £262 |
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 - £17,421

Two storey extension - £87,881

Build a timber frame extension - £25,921

Build a swimming pool - £80,921

Single storey extension - £53,418

Side return extension - £40,610

Install an RSJ - £2,121

Outbuilding - £9,921

Build a Mansard loft conversion - £51,921

Loft conversion - £33,008

Build a kitchen extension - £41,921

Hip to gable loft conversion - £41,921

Granny annexe - £86,921

Garden office - £9,921

Convert a Garage - £15,921

Garage - £18,421

Build a flat roof extension - £21,921

Build a dormer loft conversion - £41,921

Concrete foundations - £6,171

Convert a bungalow loft - £28,921

Convert a basement - £36,610