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Mr
Jonathan Rimmer
Experienced extension builder ready to quote for your work. Mr is the best extension builder in W12. No obligation free quotes and many happy custo...
1st & 2nd Fix Vasconstruct
Vas Constructs
RUBBERCOVER™ EPDM Permaroof rubber cover and roof system. Lead flashing. NCTS. Timber Frame Buildings. Refurbish fit out, structural ...
M & A UK Ltd
Relax... you have found a reliable extension builder in W12. M & A UK Ltd is a friendly and reliable company based in W12 who consider no job as to...
Newpark Construction
Newpark Construction are here to help customers who need an Extension Builder in W12. We offer a competitive rate to complete all your extension bu...
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
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...
HUGHES BUILDERS
Shepherd's Bush, W12
Experienced extension builder ready to quote for your work. HUGHES BUILDERS is the best extension builder in W12. No obligation free quotes and man...
R Burton & Sons Builders
R Burton & Sons Builders are here to help customers who need an Extension Builder in W12. We offer a competitive rate to complete all your extensio...
Heaven Sent Construction
Shepherd's Bush, W12
Need to find an Extension Builder near you for all your extension buildering work?
Heaven Sent Construction provides a local, trusted exten...
LINE BUILDERS LTD
LINE BUILDERS LTD is an established extension buildering business in W12. We come highly recommended and provide competitive quotes for your work.<...
RSJ cost in W12
How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in W12 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 W12 by posting a job with HaMuch and we will send it to extension builders in W12.
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Estimates for common extension builder jobs in W12;
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 - £17,871
Two storey extension - £88,557
Build a timber frame extension - £26,371
Build a swimming pool - £81,371
Single storey extension - £62,424
Side return extension - £45,676
Install an RSJ - £2,571
Outbuilding - £10,371
Build a Mansard loft conversion - £52,371
Loft conversion - £37,230
Build a kitchen extension - £42,371
Hip to gable loft conversion - £42,371
Granny annexe - £87,371
Garden office - £10,371
Convert a Garage - £16,371
Garage - £18,871
Build a flat roof extension - £22,371
Build a dormer loft conversion - £42,371
Concrete foundations - £6,621
Convert a bungalow loft - £29,371
Convert a basement - £41,676