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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...
New Finishes
New Finishes is a trusted extension builder serving customers in Whetstone and the surrounding area. Contact us to today to get a competitive quote...
Pavillion Building Services
Relax... you have found a reliable extension builder in Whetstone. Pavillion Building Services is a friendly and reliable company based in Whetston...
Homeland Building Ltd
Homeland Building Ltd is a trusted extension builder serving customers in Whetstone and the surrounding area. Contact us to today to get a competit...
Wittick Building Ltd
Wittick Building Ltd is a trusted extension builder serving customers in Whetstone and the surrounding area. Contact us to today to get a competiti...
Roni Lofts Conversions Ltd
Need an Extension Builder in Whetstone? Roni Lofts Conversions Ltd has been helping local clients (10 mile radius) with their extension buildering ...
Onyx Iv
Ivaylo Shkodrov
Extremely reliable service . Flexibility, correct, listening customer. Wide experience.
Taylor Construction Services Ltd
Relax... you have found a reliable extension builder in Whetstone. Taylor Construction Services Ltd is a friendly and reliable company based in Whe...
Flat roof extension cost in Whetstone
A flat roof extension ranges from the cheapest of £21,320 (Onyx Iv 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 Whetstone by posting a job with HaMuch. We'll send it to extension builders in Whetstone.
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Estimates for common extension builder jobs in Whetstone;
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 - £17,567
Two storey extension - £88,101
Build a timber frame extension - £26,067
Build a swimming pool - £81,067
Single storey extension - £56,344
Side return extension - £42,256
Install an RSJ - £2,267
Outbuilding - £10,067
Build a Mansard loft conversion - £52,067
Loft conversion - £34,380
Build a kitchen extension - £42,067
Hip to gable loft conversion - £42,067
Granny annexe - £87,067
Garden office - £10,067
Convert a Garage - £16,067
Garage - £18,567
Build a flat roof extension - £22,067
Build a dormer loft conversion - £42,067
Concrete foundations - £6,317
Convert a bungalow loft - £29,067
Convert a basement - £38,256