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1st & 2nd Fix Vasconstruct
Vas Constructs
RUBBERCOVER™ EPDM Permaroof rubber cover and roof system. Lead flashing. NCTS. Timber Frame Buildings. Refurbish fit out, structural ...
LALI BUILDERS
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Newpark Construction
Newpark Construction are here to help customers who need an Extension Builder in W3. We offer a competitive rate to complete all your extension bui...
Ferdas Design & Build Ltd
At Ferdas Design & Build Ltd we have been fitting bespoke bathrooms since 2013. We pride ourselves on being the go-to bathroom fitters for discerni...
The Diamond Property Service Ltd
Tomasz Pedowicz
London, W3
Hi we have 15 years of experience in building and construction industry our specialization is bathrooms and renovations please have a look at the w...
Vision Refurbishments Ltd.
Mick Shehabi
Vision Refurbishments Ltd. brings over 10 years of experience in building and construction, including interior and exterior renovations, painting, ...
HUGHES BUILDERS
Experienced extension builder ready to quote for your work. HUGHES BUILDERS is the best extension builder in W3. No obligation free quotes and many...
R Burton & Sons Builders
R Burton & Sons Builders are here to help customers who need an Extension Builder in W3. We offer a competitive rate to complete all your extension...
Heaven Sent Construction
Need to find an Extension Builder near you for all your extension buildering work?
Heaven Sent Construction provides a local, trusted exten...
PJS Building & Maintenance Ltd
PJS Building & Maintenance Ltd is a trusted extension builder serving customers in W3 and the surrounding area. Contact us to today to get a compet...
RSJ cost in W3
How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in W3 it ranges from £2,224 (HUGHES BUILDERS based in W12) to £4,040 (1st & 2nd Fix Vasconstruct based in W12).
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 W3 by posting a job with HaMuch and we will send it to extension builders in W3.
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Estimates for common extension builder jobs in W3;
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 - £17,902
Two storey extension - £88,604
Build a timber frame extension - £26,402
Build a swimming pool - £81,402
Single storey extension - £63,048
Side return extension - £46,027
Install an RSJ - £2,602
Outbuilding - £10,402
Build a Mansard loft conversion - £52,402
Loft conversion - £37,523
Build a kitchen extension - £42,402
Hip to gable loft conversion - £42,402
Granny annexe - £87,402
Garden office - £10,402
Convert a Garage - £16,402
Garage - £18,902
Build a flat roof extension - £22,402
Build a dormer loft conversion - £42,402
Concrete foundations - £6,652
Convert a bungalow loft - £29,402
Convert a basement - £42,027