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Ava Constructions & Decors Ltd
Need an Extension Builder in Northolt? Ava Constructions & Decors Ltd has been helping local clients (10 mile radius) with their extension builderi...
T M Builder
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Matharu Buildings
Bill Matharu
Matharu Buildings is an established extension buildering business in Northolt. We come highly recommended and provide competitive quotes for your w...
Mario Prajar Building Services
Mario Prajar Building Services is an established and experienced local extension builder in Northolt. Please contact us for a free, no obligation q...
MAX CONSTRUCTION LTD
Need to find an Extension Builder near you for all your extension buildering work?
MAX CONSTRUCTION LTD provides a local, trusted extension...
Vital Builders
Northolt, UB5
Vital Builders are here to help customers who need an Extension Builder in Northolt. We offer a competitive rate to complete all your extension bui...
C T Edwards
Relax... you have found a reliable extension builder in Northolt. C T Edwards is a friendly and reliable company based in Northolt who consider no ...
J K GENERAL BUILDING LTD
Northolt, UB5
Need to find an Extension Builder near you for all your extension buildering work?
J K GENERAL BUILDING LTD provides a local, trusted exten...
ALG Renovations
ALG Renovations is a well established, trustworthy, reliable and professional operation with over 17 years experience myself in the trade, base...
MJ Builders (London) Ltd
Hardeep Samra
MJ Builders (London) Ltd are here to help customers who need an Extension Builder in Northolt. We offer a competitive rate to complete all your ext...
Flat roof extension cost in Northolt
A flat roof extension ranges from the cheapest of £21,880 (MAX CONSTRUCTION LTD based in HA4) to the dearest of £22,344 (C T Edwards based in HA4), 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 Northolt by posting a job with HaMuch. We'll send it to extension builders in Northolt.
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Estimates for common extension builder jobs in Northolt;
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 - £17,600
Two storey extension - £88,150
Build a timber frame extension - £26,100
Build a swimming pool - £81,100
Single storey extension - £57,000
Side return extension - £42,625
Install an RSJ - £2,300
Outbuilding - £10,100
Build a Mansard loft conversion - £52,100
Loft conversion - £34,688
Build a kitchen extension - £42,100
Hip to gable loft conversion - £42,100
Granny annexe - £87,100
Garden office - £10,100
Convert a Garage - £16,100
Garage - £18,600
Build a flat roof extension - £22,100
Build a dormer loft conversion - £42,100
Concrete foundations - £6,350
Convert a bungalow loft - £29,100
Convert a basement - £38,625