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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...
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 Cockfosters and the surrounding area. Contact us to today to get a competitive quo...
Pavillion Building Services
Cockfosters, EN4
Relax... you have found a reliable extension builder in Cockfosters. Pavillion Building Services is a friendly and reliable company based in Cockfo...
Homeland Building Ltd
Homeland Building Ltd is a trusted extension builder serving customers in Cockfosters and the surrounding area. Contact us to today to get a compet...
Wittick Building Ltd
Cockfosters, EN4
Wittick Building Ltd is a trusted extension builder serving customers in Cockfosters and the surrounding area. Contact us to today to get a competi...
Roni Lofts Conversions Ltd
Need an Extension Builder in Cockfosters? Roni Lofts Conversions Ltd has been helping local clients (10 mile radius) with their extension builderin...
Onyx Iv
Ivaylo Shkodrov
Extremely reliable service . Flexibility, correct, listening customer. Wide experience.
Raf's Building Service
Need to find an Extension Builder near you for all your extension buildering work?
Raf's Building Service provides a local, trusted extensi...
Odp Builders
Need an Extension Builder in Cockfosters? Odp Builders has been helping local clients (5 mile radius) with their extension buildering jobs for many...
Extension builder estimates (based on hourly rates) to build a single storey extension in Cockfosters
- How much does a single storey extension cost?
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Estimates for common extension builder jobs in Cockfosters;
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 - £17,641
Two storey extension - £88,211
Build a timber frame extension - £26,141
Build a swimming pool - £81,141
Single storey extension - £57,816
Side return extension - £43,084
Install an RSJ - £2,341
Outbuilding - £10,141
Build a Mansard loft conversion - £52,141
Loft conversion - £35,070
Build a kitchen extension - £42,141
Hip to gable loft conversion - £42,141
Granny annexe - £87,141
Garden office - £10,141
Convert a Garage - £16,141
Garage - £18,641
Build a flat roof extension - £22,141
Build a dormer loft conversion - £42,141
Concrete foundations - £6,391
Convert a bungalow loft - £29,141
Convert a basement - £39,084