From £2,456
DUWIX BUILDING MAINTENANCE are here to help customers who need an Extension Builder in Camberwell. We offer a competitive rate to complete all your...
From £2,296
Camberwell London, SE5
Experienced builder in all aspects of building works. All work guaranteed. Quality finish, promt ,honest and reliable services. Public liabil...
From £6,248
Based in Camberwell south east London we provide a turnkey service for Domestic and Commercial construction Projects from conception to compl...
From £2,224
James Hall Property Solutions Ltd is a trusted extension builder serving customers in Camberwell and the surrounding area. Contact us to today to g...
From £2,408
Trusted and professional extension builder in Camberwell. Experienced in all extension buildering work and keeping within budget and on quote. Vida...
From £2,688
Need an Extension Builder in Camberwell? Oxus Construction has been helping local clients (5 mile radius) with their extension buildering jobs for ...
From £2,264
The Casa Shop is nestled in the heart of Peckham, London. Established in 1998, we are specialist suppliers and installers of Eco Wood-Burning and G...
From £2,336
JP Refurbishment London has completed countless renovations and home improvements in London. Our focus and determination are both solely centred ar...
From £2,448
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in Camberwell. No obligation fr...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Camberwell it ranges from £2,224 (James Hall Property Solutions Ltd based in SE22) to £6,248 (Chris Ellis Project Service based in SE5).
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 Camberwell by posting a job with HaMuch and we will send it to extension builders in Camberwell.
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 - £18,061

Two storey extension - £88,841

Build a timber frame extension - £26,561

Build a swimming pool - £81,561

Single storey extension - £66,216

Side return extension - £47,809

Install an RSJ - £2,761

Outbuilding - £10,561

Build a Mansard loft conversion - £52,561

Loft conversion - £39,008

Build a kitchen extension - £42,561

Hip to gable loft conversion - £42,561

Granny annexe - £87,561

Garden office - £10,561

Convert a Garage - £16,561

Garage - £19,061

Build a flat roof extension - £22,561

Build a dormer loft conversion - £42,561

Concrete foundations - £6,811

Convert a bungalow loft - £29,561

Convert a basement - £43,809