From £16,032
P & I Construction is an established extension buildering business in Gants Hill. We come highly recommended and provide competitive quotes for you...
From £15,984
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £16,216
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £16,080
REMMY BUILDERS is an established extension buildering business in Gants Hill. We come highly recommended and provide competitive quotes for your wo...
From £15,968
Britbuild Direct is an established and experienced local extension builder in Gants Hill. Please contact us for a free, no obligation quote and com...
From £16,208
We are a British construction company with over 30 years experience in both commercial and residential building work. As a one-stop-shop, we provid...
From £16,032
M & S Builders is a trusted extension builder serving customers in Gants Hill and the surrounding area. Contact us to today to get a competitive qu...
From £16,280
Need an Extension Builder in Gants Hill? Sirha Builders has been helping local clients (10 mile radius) with their extension buildering jobs for ma...
From £16,152
Need to find an Extension Builder near you for all your extension buildering work?
BENNING CONSTRUCTION LIMITED provides a local, trusted e...
From £15,936
Slade Building and Construction Ltd is an established extension buildering business in Gants Hill. We come highly recommended and provide competiti...

Garage conversions in Gants Hill typically range from £15,936 (Slade Building and Construction Ltd based in IG6) to £16,280 (Sirha Builders based in IG2), but the only way to get an accurate cost for your specific project is to get quotes.
Post a job with HaMuch and we'll send it to extension builders in Gants Hill who will be happy to help.
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 - £17,589

Two storey extension - £88,133

Build a timber frame extension - £26,089

Build a swimming pool - £81,089

Single storey extension - £56,776

Side return extension - £42,499

Install an RSJ - £2,289

Outbuilding - £10,089

Build a Mansard loft conversion - £52,089

Loft conversion - £34,583

Build a kitchen extension - £42,089

Hip to gable loft conversion - £42,089

Granny annexe - £87,089

Garden office - £10,089

Convert a Garage - £16,089

Garage - £18,589

Build a flat roof extension - £22,089

Build a dormer loft conversion - £42,089

Concrete foundations - £6,339

Convert a bungalow loft - £29,089

Convert a basement - £38,499