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Exquisite Design & Build Ltd
Need an Extension Builder in SE15? Exquisite Design & Build Ltd has been helping local clients (5 mile radius) with their extension buildering jobs...
The Perfectionist
Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in SE15. No obligation free quotes and ...
Vidanov Building Services
Trusted and professional extension builder in SE15. Experienced in all extension buildering work and keeping within budget and on quote. Vidanov Bu...
DUWIX BUILDING MAINTENANCE
DUWIX BUILDING MAINTENANCE are here to help customers who need an Extension Builder in SE15. We offer a competitive rate to complete all your exten...
Building and Plastering Solution
Peter Cesma
Experienced builder in all aspects of building works. All work guaranteed. Quality finish, promt ,honest and reliable services. Public liabil...
Home Tranformers Ltd
At Home Tranformers Ltd we have been fitting bespoke bathrooms for over 10 years. We pride ourselves on being the go-to bathroom fitters for discer...
Ask Building
Need to find an Extension Builder near you for all your extension buildering work?
Ask Building provides a local, trusted extension builder...
AAA Design Decorators
AAA Design Decorators are here to help customers who need an Extension Builder in SE15. We offer a competitive rate to complete all your extension ...
AGRI CONSTRUCTION
Need to find an Extension Builder near you for all your extension buildering work?
AGRI CONSTRUCTION provides a local, trusted extension bu...
South East Builders
South East Builders are here to help customers who need an Extension Builder in SE15. We offer a competitive rate to complete all your extension bu...
RSJ cost in SE15
How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SE15 it ranges from £2,224 (AGRI CONSTRUCTION based in SE1) to £2,656 (Ask Building based in SE1).
Comparing extension builders estimates for fitting an RSJ gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get rates and quotes to install an RSJ in SE15 by posting a job with HaMuch and we will send it to extension builders in SE15.
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Estimates for common extension builder jobs in SE15;
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 - £17,718
Two storey extension - £88,326
Build a timber frame extension - £26,218
Build a swimming pool - £81,218
Single storey extension - £59,352
Side return extension - £43,948
Install an RSJ - £2,418
Outbuilding - £10,218
Build a Mansard loft conversion - £52,218
Loft conversion - £35,790
Build a kitchen extension - £42,218
Hip to gable loft conversion - £42,218
Granny annexe - £87,218
Garden office - £10,218
Convert a Garage - £16,218
Garage - £18,718
Build a flat roof extension - £22,218
Build a dormer loft conversion - £42,218
Concrete foundations - £6,468
Convert a bungalow loft - £29,218
Convert a basement - £39,948