Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Steve Knight Construction is a High Wycombe based Building Company with 38 years experience in all aspects of the Construction Industry. We are abl...
Chris Warren Construction Ltd is an established extension buildering business in HP16. We come highly recommended and provide competitive quotes fo...
From £88,108
As a full-service provider, we are dedicated to delivering an outstanding fit out experience for all of our customers. With our innovative designs,...
From £88,192
Trusted and professional extension builder in HP16. Experienced in all extension buildering work and keeping within budget and on quote. Steve Knig...
From £88,684
AQUITAINE(BUILDING SERVICES)LT is an established and experienced local extension builder in HP16. Please contact us for a free, no obligation quote...
From £88,528
CONCEPT BUILD are here to help customers who need an Extension Builder in HP16. We offer a competitive rate to complete all your extension builderi...

Costs range from £88,108 (Chamfer Projects based in HP13) to £88,684 (AQUITAINE(BUILDING SERVICES)LT based in HP16), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
Post your job on HaMuch and we'll send it to extension builders to HP16.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Hazlemere | £40 | £272 |
| Two Storey Extension near Chesham | £42 | £277 |
| Two Storey Extension near Wycombe | £40 | £271 |
| Two Storey Extension near High Wycombe | £39 | £272 |
| Two Storey Extension near Berkhamsted | £41 | £263 |
| Two Storey Extension near Aylesbury | £42 | £270 |
| Two Storey Extension near Dacorum | £42 | £269 |
| Two Storey Extension near Gerrards Cross | £43 | £282 |
| Two Storey Extension near Hemel Hempstead | £42 | £270 |
| Two Storey Extension near Rickmansworth | £42 | £279 |
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 - £17,798

Two storey extension - £88,447

Build a timber frame extension - £26,298

Build a swimming pool - £81,298

Single storey extension - £60,966

Side return extension - £44,856

Install an RSJ - £2,498

Outbuilding - £10,298

Build a Mansard loft conversion - £52,298

Loft conversion - £36,546

Build a kitchen extension - £42,298

Hip to gable loft conversion - £42,298

Granny annexe - £87,298

Garden office - £10,298

Convert a Garage - £16,298

Garage - £18,798

Build a flat roof extension - £22,298

Build a dormer loft conversion - £42,298

Concrete foundations - £6,548

Convert a bungalow loft - £29,298

Convert a basement - £40,856