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SH Enterprise
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
Torrington
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
Thermodynamic Building Services Ltd
Trusted and professional extension builder in EC1Y. Experienced in all extension buildering work and keeping within budget and on quote. Thermodyna...
CK Constructions & Development Ltd
CK Constructions & Development Ltd is a trusted extension builder serving customers in EC1Y and the surrounding area. Contact us to today to get a ...
GS Fabric Ltd
GS Fabric Ltd is an established and experienced local extension builder in EC1Y. Please contact us for a free, no obligation quote and competitive ...
JM Building Services
JM Building Services is a trusted extension builder serving customers in EC1Y and the surrounding area. Contact us to today to get a competitive qu...
Buildwiser
Buildwiser is a trusted extension builder serving customers in EC1Y and the surrounding area. Contact us to today to get a competitive quote for ex...
Renobuild Group
Daniel Dixon
Need to find an Extension Builder near you for all your extension buildering work?
Renobuild Group provides a local, trusted extension buil...
Brooks Builders & Decorators
Brooks Builders & Decorators is an established extension buildering business in EC1Y. We come highly recommended and provide competitive quotes for...
COMPLETE BUILDING COMPANY
Frankie
COMPLETE BUILDING COMPANY are here to help customers who need an Extension Builder in EC1Y. We offer a competitive rate to complete all your extens...
Flat roof extension cost in EC1Y
A flat roof extension ranges from the cheapest of £21,928 (GS Fabric Ltd based in E2) to the dearest of £22,376 (CK Constructions & Development Ltd based in WC1N), 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 EC1Y by posting a job with HaMuch. We'll send it to extension builders in EC1Y.
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Estimates for common extension builder jobs in EC1Y;
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 - £17,634
Two storey extension - £88,202
Build a timber frame extension - £26,134
Build a swimming pool - £81,134
Single storey extension - £57,688
Side return extension - £43,012
Install an RSJ - £2,334
Outbuilding - £10,134
Build a Mansard loft conversion - £52,134
Loft conversion - £35,010
Build a kitchen extension - £42,134
Hip to gable loft conversion - £42,134
Granny annexe - £87,134
Garden office - £10,134
Convert a Garage - £16,134
Garage - £18,634
Build a flat roof extension - £22,134
Build a dormer loft conversion - £42,134
Concrete foundations - £6,384
Convert a bungalow loft - £29,134
Convert a basement - £39,012