From £9,904
HOLBROOK CONSTRUCTION are here to help customers who need an Extension Builder in Keynsham. We offer a competitive rate to complete all your extens...
From £9,936
Need an Extension Builder in Keynsham? Just Plastered has been helping local clients (20 mile radius) with their extension buildering jobs for many...
From £9,872
Relax... you have found a reliable extension builder in Keynsham. Uks is a friendly and reliable company based in Keynsham who consider no job as t...
From £10,152
MOBILE .... 07901 808 028 EMAIL .... angel201665@
From £9,760
Relax... you have found a reliable extension builder in Keynsham. ASHWIN CONSTRUCTION is a friendly and reliable company based in Keynsham who cons...
From £10,240
M L BUILDING SERVICES are here to help customers who need an Extension Builder in Keynsham. We offer a competitive rate to complete all your extens...
From £9,912
Vears Decorating Limited was established in 1993 and since then has gained extensive experience with decorating all types and styles of properties,...
From £9,776
Relax... you have found a reliable extension builder in Keynsham. MSH Construction (Bristol) Ltd is a friendly and reliable company based in Keynsh...
From £10,152
J GREEN PLASTERING LTD are here to help customers who need an Extension Builder in Keynsham. We offer a competitive rate to complete all your exten...
From £10,160
S JOYCE BUILDING are here to help customers who need an Extension Builder in Keynsham. We offer a competitive rate to complete all your extension b...

Outbuilding costs in Keynsham range from the cheapest of £9,760 (ASHWIN CONSTRUCTION based in BS30) to the dearest of £10,240 (M L BUILDING SERVICES based in BS14), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in Keynsham by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Keynsham | £33 | £251 |
| Outbuilding near Kingswood | £34 | £257 |
| Outbuilding near Bristol | £33 | £255 |
| Outbuilding near Bath | £32 | £249 |
| Outbuilding near Clifton | £33 | £255 |
| Outbuilding near South Gloucestershire | £34 | £260 |
| Outbuilding near Yate | £34 | £263 |
| Outbuilding near Bradley Stoke | £34 | £259 |
| Outbuilding near Portishead | £33 | £247 |
| Outbuilding near North Somerset | £32 | £245 |
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 - £17,486

Two storey extension - £87,980

Build a timber frame extension - £25,986

Build a swimming pool - £80,986

Single storey extension - £54,728

Side return extension - £41,347

Install an RSJ - £2,186

Outbuilding - £9,986

Build a Mansard loft conversion - £51,986

Loft conversion - £33,623

Build a kitchen extension - £41,986

Hip to gable loft conversion - £41,986

Granny annexe - £86,986

Garden office - £9,986

Convert a Garage - £15,986

Garage - £18,486

Build a flat roof extension - £21,986

Build a dormer loft conversion - £41,986

Concrete foundations - £6,236

Convert a bungalow loft - £28,986

Convert a basement - £37,347