From £2,704
Welcome to Adamko Interiors Ltd. We specialize in customized interior design solutions, prioritizing customer satisfaction and creating safe, comfo...
From £2,344
House Rendering Ltd is a trusted extension builder serving customers in Charring Cross and the surrounding area. Contact us to today to get a compe...
From £2,440
Relax... you have found a reliable extension builder in Charring Cross. HouseUP is a friendly and reliable company based in Charring Cross who cons...
From £2,400
Experienced extension builder ready to quote for your work. My Trusted Builder is the best extension builder in Charring Cross. No obligation free ...
From £2,224
Need to find an Extension Builder near you for all your extension buildering work?
ORO Projects provides a local, trusted extension builder...
From £2,472
Trusted and professional extension builder in Charring Cross. Experienced in all extension buildering work and keeping within budget and on quote. ...
From £2,280
Whitehorse Build London offers a full management service running each project from design through to completion, removing many of the hassle associ...
From £2,296
We offer many services in both residential and commercial settings including:BathroomsBuilding & RenovationDecking & PavingDemolitionDoor Installat...
From £2,592
Matstone Projects Limited is an established extension buildering business in Charring Cross. We come highly recommended and provide competitive quo...
From £2,240
Rucco Property is a trusted extension builder serving customers in Charring Cross and the surrounding area. Contact us to today to get a competitiv...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Charring Cross it ranges from £2,224 (ORO Projects based in WC2H) to £2,704 (Adamko Dry Lining London based in WC2N).
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 Charring Cross by posting a job with HaMuch and we will send it to extension builders in Charring Cross.
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 - £17,699

Two storey extension - £88,299

Build a timber frame extension - £26,199

Build a swimming pool - £81,199

Single storey extension - £58,984

Side return extension - £43,741

Install an RSJ - £2,399

Outbuilding - £10,199

Build a Mansard loft conversion - £52,199

Loft conversion - £35,618

Build a kitchen extension - £42,199

Hip to gable loft conversion - £42,199

Granny annexe - £87,199

Garden office - £10,199

Convert a Garage - £16,199

Garage - £18,699

Build a flat roof extension - £22,199

Build a dormer loft conversion - £42,199

Concrete foundations - £6,449

Convert a bungalow loft - £29,199

Convert a basement - £39,741