From £21,792
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,976
Southbourne, BH6
Experienced extension builder ready to quote for your work. PINECLIFFE CONSTRUCTION LTD is the best extension builder in Southbourne. No obligation...
From £22,216
Need an Extension Builder in Southbourne? Upscale Home Improvements has been helping local clients (20 mile radius) with their extension buildering...
From £21,968
pantlin construction ltd are here to help customers who need an Extension Builder in Southbourne. We offer a competitive rate to complete all your ...
From £21,976
Our building services company Colin Sloper General Builder has twenty five years’ experience and have been helping customers in Dorset and the su...
From £22,160
A design and build service for commercial or residential properties. House of Tigerhorse is the design arm of Broad Construction which together of...
From £21,968
Trusted and professional extension builder in Southbourne. Experienced in all extension buildering work and keeping within budget and on quote. B.H...
From £21,840
Relax... you have found a reliable extension builder in Southbourne. First Alpha Home Improvements Ltd is a friendly and reliable company based in ...
From £22,224
Elmer Building Services ltd is an established extension buildering business in Southbourne. We come highly recommended and provide competitive quot...

A flat roof extension ranges from the cheapest of £21,792 (J F DEWHIRST & CO based in BH6) to the dearest of £22,504 (Zeneli Builders based in BH23), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in Southbourne by posting a job with HaMuch. We'll send it to extension builders in Southbourne.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Christchurch | £36 | £251 |
| Build A Flat Roof Extension near Bournemouth | £38 | £257 |
| Build A Flat Roof Extension near Poole | £38 | £250 |
| Build A Flat Roof Extension near New Forest | £32 | £245 |
| Build A Flat Roof Extension near Totton | £34 | £243 |
| Build A Flat Roof Extension near Southampton | £34 | £243 |
| Build A Flat Roof Extension near Isle of Wight | £34 | £246 |
| Build A Flat Roof Extension near Romsey | £32 | £230 |
| Build A Flat Roof Extension near Salisbury | £35 | £247 |
| Build A Flat Roof Extension near Locks Heath | £33 | £240 |
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 - £17,562

Two storey extension - £88,094

Build a timber frame extension - £26,062

Build a swimming pool - £81,062

Single storey extension - £56,248

Side return extension - £42,202

Install an RSJ - £2,262

Outbuilding - £10,062

Build a Mansard loft conversion - £52,062

Loft conversion - £34,335

Build a kitchen extension - £42,062

Hip to gable loft conversion - £42,062

Granny annexe - £87,062

Garden office - £10,062

Convert a Garage - £16,062

Garage - £18,562

Build a flat roof extension - £22,062

Build a dormer loft conversion - £42,062

Concrete foundations - £6,312

Convert a bungalow loft - £29,062

Convert a basement - £38,202