From £41,860
P & I Construction is an established extension buildering business in Gants Hill. We come highly recommended and provide competitive quotes for you...
From £41,320
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £43,930
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £42,400
REMMY BUILDERS is an established extension buildering business in Gants Hill. We come highly recommended and provide competitive quotes for your wo...
From £41,140
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 £43,840
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 £41,860
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 £44,650
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 £43,210
Need to find an Extension Builder near you for all your extension buildering work?
BENNING CONSTRUCTION LIMITED provides a local, trusted e...
From £40,780
Slade Building and Construction Ltd is an established extension buildering business in Gants Hill. We come highly recommended and provide competiti...

Comparing extension builders estimates for Side return extension gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for a side return extention by posting your job to extension builders in Gants Hill.
"Side return extension" - REDBRIDGE, job posted 11/08/25
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