From £9,976
Trusted and professional extension builder in SA10. Experienced in all extension buildering work and keeping within budget and on quote. HALL & HAR...
From £9,760
Marin Hughes General Builders is a trusted extension builder serving customers in SA10 and the surrounding area. Contact us to today to get a compe...
From £9,936
A Room at the Top are here to help customers who need an Extension Builder in SA10. We offer a competitive rate to complete all your extension buil...
From £9,552
Need an Extension Builder in SA10? Calon Construction Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for ...
From £9,632
Karina Lane Construction Ltd are here to help customers who need an Extension Builder in SA10. We offer a competitive rate to complete all your ext...
From £9,824
Evans Home Improvements are here to help customers who need an Extension Builder in SA10. We offer a competitive rate to complete all your extensio...
From £9,832
Need an Extension Builder in SA10? K.D.L Property Maintenance has been helping local clients (20 mile radius) with their extension buildering jobs ...
From £9,848
SS BUILDER are here to help customers who need an Extension Builder in SA10. We offer a competitive rate to complete all your extension buildering ...
From £9,816
Dale Hopkins is an established and experienced local extension builder in SA10. Please contact us for a free, no obligation quote and competitive r...
From £9,776
KAW Developments is a trusted extension builder serving customers in SA10 and the surrounding area. Contact us to today to get a competitive quote ...

Garden offices range from the cheapest of £9,552 (Calon Construction Ltd based in SA7) to the dearest of £9,976 (HALL & HARRIS CONSTRUCTION based in SA11), but these are only estimates.
The best way to compare costs is to get actual quotes.
Get rates and quotes to build a garden office in SA10 by posting a job with HaMuch. We'll send it to extension builders in SA10.
"Garden office" - NEATH PORT TALBOT, job posted 03/04/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Neath | £30 | £225 |
| Garden Office near Neath Port Talbot | £31 | £224 |
| Garden Office near Port Talbot | £31 | £227 |
| Garden Office near Swansea | £29 | £230 |
| Garden Office near Maesteg | £38 | £283 |
| Garden Office near Gorseinon | £29 | £228 |
| Garden Office near Pyle | £34 | £262 |
| Garden Office near Porthcawl | £33 | £252 |
| Garden Office near Aberdare | £32 | £212 |
| Garden Office near Llanelli | £29 | £231 |
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 - £17,295

Two storey extension - £87,693

Build a timber frame extension - £25,795

Build a swimming pool - £80,795

Single storey extension - £50,904

Side return extension - £39,196

Install an RSJ - £1,995

Outbuilding - £9,795

Build a Mansard loft conversion - £51,795

Loft conversion - £31,830

Build a kitchen extension - £41,795

Hip to gable loft conversion - £41,795

Granny annexe - £86,795

Garden office - £9,795

Convert a Garage - £15,795

Garage - £18,295

Build a flat roof extension - £21,795

Build a dormer loft conversion - £41,795

Concrete foundations - £6,045

Convert a bungalow loft - £28,795

Convert a basement - £35,196