Torrington Design
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
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
Trusted and professional extension builder in Hackney. Experienced in all extension buildering work and keeping within budget and on quote. GNB Con...
Mick Singh
At Building Services Contractors we pride ourselves on an efficient and friendly service, and strive to achieve 100% customer satisfaction.
Experienced extension builder ready to quote for your work. Five Star Builder is the best extension builder in Hackney. No obligation free quotes a...
J&H Builder is a trusted extension builder serving customers in Hackney and the surrounding area. Contact us to today to get a competitive quote fo...
Relax... you have found a reliable extension builder in Hackney. London Trowel Co. is a friendly and reliable company based in Hackney who consider...
Hackney, E8
Trusted and professional extension builder in Hackney. Experienced in all extension buildering work and keeping within budget and on quote. Thermod...
Experienced extension builder ready to quote for your work. Glenward Builders Ltd is the best extension builder in Hackney. No obligation free quot...
CK Constructions & Development Ltd is a trusted extension builder serving customers in Hackney and the surrounding area. Contact us to today to get...

A flat roof extension ranges from the cheapest of £22,024 (SH Enterprise based in EC1V) to the dearest of £22,400 (Five Star Builder based in N16), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in Hackney by posting a job with HaMuch. We'll send it to extension builders in Hackney.
"Flat roof extension" - E5, job posted 01/01/70
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 - £17,699

Two storey extension - £88,299

Build a timber frame extension - £26,199

Build a swimming pool - £81,199

Single storey extension - £58,984

Side return extension - £43,741

Install an RSJ - £2,399

Outbuilding - £10,199

Build a Mansard loft conversion - £52,199

Loft conversion - £35,618

Build a kitchen extension - £42,199

Hip to gable loft conversion - £42,199

Granny annexe - £87,199

Garden office - £10,199

Convert a Garage - £16,199

Garage - £18,699

Build a flat roof extension - £22,199

Build a dormer loft conversion - £42,199

Concrete foundations - £6,449

Convert a bungalow loft - £29,199

Convert a basement - £39,741