From £10,048
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in IG7. No obligation free quotes ...
From £9,880
Experienced extension builder ready to quote for your work. CIA Construction Limited is the best extension builder in IG7. No obligation free quote...
From £10,064
Hyde Building Ltd are here to help customers who need an Extension Builder in IG7. We offer a competitive rate to complete all your extension build...
From £10,504
At Ferdas Design & Build Ltd we have been fitting bespoke bathrooms since 2013. We pride ourselves on being the go-to bathroom fitters for discerni...
From £10,360
Need an Extension Builder in IG7? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering jo...
1 review
From £10,192
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
From £10,024
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
From £10,392
Need an Extension Builder in IG7? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for many yea...
From £10,152
I am a qualified, builder, electrician and plumber. I have been working in the construction industry for over 23 years and have built everything fr...
From £10,304
Hi we have 15 years of experience in building and construction industry our specialization is bathrooms and renovations please have a look at the w...

Garden offices range from the cheapest of £9,880 (CIA Construction Limited based in RM18) to the dearest of £10,504 (Ferdas Design & Build Ltd based in W3), 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 IG7 by posting a job with HaMuch. We'll send it to extension builders in IG7.
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 - £17,692

Two storey extension - £88,288

Build a timber frame extension - £26,192

Build a swimming pool - £81,192

Single storey extension - £58,840

Side return extension - £43,660

Install an RSJ - £2,392

Outbuilding - £10,192

Build a Mansard loft conversion - £52,192

Loft conversion - £35,550

Build a kitchen extension - £42,192

Hip to gable loft conversion - £42,192

Granny annexe - £87,192

Garden office - £10,192

Convert a Garage - £16,192

Garage - £18,692

Build a flat roof extension - £22,192

Build a dormer loft conversion - £42,192

Concrete foundations - £6,442

Convert a bungalow loft - £29,192

Convert a basement - £39,660