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SJ Expert Building Services
SJ Expert Building Services are here to help customers who need an Extension Builder in North Finchley. We offer a competitive rate to complete all...
Rafix Building
Rafal Szczepanski
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
Bellator Construction Ltd
Dimitar Vakavliev
We are reliable tradesmen delivering quality works with attention to detail
WT Construction Service Ltd
Need the extension buildering job done quickly without breaking the bank? WT Construction Service Ltd offer fast, reliable, and affordable extensio...
Swiftdale Developments Ltd
Need the extension buildering job done quickly without breaking the bank? Swiftdale Developments Ltd offer fast, reliable, and affordable extension...
New Finishes
New Finishes is a trusted extension builder serving customers in North Finchley and the surrounding area. Contact us to today to get a competitive ...
Pavillion Building Services
Relax... you have found a reliable extension builder in North Finchley. Pavillion Building Services is a friendly and reliable company based in Nor...
Homeland Building Ltd
Homeland Building Ltd is a trusted extension builder serving customers in North Finchley and the surrounding area. Contact us to today to get a com...
Wittick Building Ltd
Wittick Building Ltd is a trusted extension builder serving customers in North Finchley and the surrounding area. Contact us to today to get a comp...
Roni Lofts Conversions Ltd
Need an Extension Builder in North Finchley? Roni Lofts Conversions Ltd has been helping local clients (10 mile radius) with their extension builde...
Flat roof extension cost in North Finchley
A flat roof extension ranges from the cheapest of £21,528 (Bellator Construction Ltd based in N11) to the dearest of £22,560 (Rafix Building based in EN4), 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 North Finchley by posting a job with HaMuch. We'll send it to extension builders in North Finchley.
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Estimates for common extension builder jobs in North Finchley;
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 - £17,659
Two storey extension - £88,239
Build a timber frame extension - £26,159
Build a swimming pool - £81,159
Single storey extension - £58,184
Side return extension - £43,291
Install an RSJ - £2,359
Outbuilding - £10,159
Build a Mansard loft conversion - £52,159
Loft conversion - £35,243
Build a kitchen extension - £42,159
Hip to gable loft conversion - £42,159
Granny annexe - £87,159
Garden office - £10,159
Convert a Garage - £16,159
Garage - £18,659
Build a flat roof extension - £22,159
Build a dormer loft conversion - £42,159
Concrete foundations - £6,409
Convert a bungalow loft - £29,159
Convert a basement - £39,291