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AM Builder
Trusted and professional extension builder in SE7. Experienced in all extension buildering work and keeping within budget and on quote. AM Builder ...
Jmc buildets
Jay Christenson
Experienced extension builder ready to quote for your work. Jmc buildets is the best extension builder in SE7. No obligation free quotes and many h...
JASPG Construction & Design
JASPG excel in finding investment opportunities, working together with clients and partners to achieve optimal results. We project manage from star...
RLD Contractors Ltd
RLD Contractors Ltd is an established and experienced local extension builder in SE7. Please contact us for a free, no obligation quote and competi...
From £2,120
Trafalgar Building Company Limited
Trusted and professional extension builder in SE7. Experienced in all extension buildering work and keeping within budget and on quote. Trafalgar B...
From £2,424
TA LEE BUILDING SERVICES
TA LEE BUILDING SERVICES is an established extension buildering business in SE7. We come highly recommended and provide competitive quotes for your...
From £2,472
Prestige Roofing Limited
Ricky Fuller
Experienced extension builder ready to quote for your work. Prestige Roofing Limited is the best extension builder in SE7. No obligation free quote...
From £2,280
Dry Spell Builders
Dry Spell Builders are here to help customers who need an Extension Builder in SE7. We offer a competitive rate to complete all your extension buil...
From £2,328
Storeyboard
Experienced extension builder ready to quote for your work. Storeyboard is the best extension builder in SE7. No obligation free quotes and many ha...
From £2,400
Storeyboard
Storeyboard work on projects of all sizes from outhouses and extensions to full renovations and commercial projects.We offer a complete and bespoke...
RSJ cost in SE7
How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SE7 it ranges from £1,816 (Jmc buildets based in SE9) to £2,720 (JASPG Construction & Design based in SE18).
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 SE7 by posting a job with HaMuch and we will send it to extension builders in SE7.
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Estimates for common extension builder jobs in SE7;
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 - £17,598
Two storey extension - £88,148
Build a timber frame extension - £26,098
Build a swimming pool - £81,098
Single storey extension - £56,968
Side return extension - £42,607
Install an RSJ - £2,298
Outbuilding - £10,098
Build a Mansard loft conversion - £52,098
Loft conversion - £34,673
Build a kitchen extension - £42,098
Hip to gable loft conversion - £42,098
Granny annexe - £87,098
Garden office - £10,098
Convert a Garage - £16,098
Garage - £18,598
Build a flat roof extension - £22,098
Build a dormer loft conversion - £42,098
Concrete foundations - £6,348
Convert a bungalow loft - £29,098
Convert a basement - £38,607