From £10,256
Greater London, N10
Relax... you have found a reliable extension builder in N10. PLAN C - Design. Build. Create is a friendly and reliable company based in N10 who co...
From £10,312
We are builders with a difference.We are proud to be a family business. Brothers Pierre and Christian Carboni established PLAN C in 2011, having pr...
From £10,304
Muswell Hill, N10
N10 Building Contractors Ltd are here to help customers who need an Extension Builder in N10. We offer a competitive rate to complete all your exte...
From £10,024
Need an Extension Builder in N10? Ally Electrical Services Ltd has been helping local clients (5 mile radius) with their extension buildering jobs ...
From £10,296
Greater London, N10
Property maintenance service, hold a pool of tradesmen ready to work.
From £10,368
Relax... you have found a reliable extension builder in N10. CM Build is a friendly and reliable company based in N10 who consider no job as too bi...
From £10,024
Greater London, N10
Whether it's garden design, a garden studio or home renovations - we can do it. What you show me, what you imagine, we can build. Contact us now fo...
From £10,272
Galaia Limited are here to help customers who need an Extension Builder in N10. We offer a competitive rate to complete all your extension builderi...
From £10,080
London, N10
Trusted and professional extension builder in N10. Experienced in all extension buildering work and keeping within budget and on quote. Arundell As...
From £10,192
SJ Expert Building Services are here to help customers who need an Extension Builder in N10. We offer a competitive rate to complete all your exten...

Garden offices range from the cheapest of £10,024 (Ally Electrical Services Ltd based in N10) to the dearest of £10,368 (CM Build based in N10), 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 N10 by posting a job with HaMuch. We'll send it to extension builders in N10.
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 - £17,713

Two storey extension - £88,319

Build a timber frame extension - £26,213

Build a swimming pool - £81,213

Single storey extension - £59,256

Side return extension - £43,894

Install an RSJ - £2,413

Outbuilding - £10,213

Build a Mansard loft conversion - £52,213

Loft conversion - £35,745

Build a kitchen extension - £42,213

Hip to gable loft conversion - £42,213

Granny annexe - £87,213

Garden office - £10,213

Convert a Garage - £16,213

Garage - £18,713

Build a flat roof extension - £22,213

Build a dormer loft conversion - £42,213

Concrete foundations - £6,463

Convert a bungalow loft - £29,213

Convert a basement - £39,894