From £2,392
Warlingham, CR6
Relax... you have found a reliable extension builder in CR6. G Sweeting Roofing Ltd is a friendly and reliable company based in CR6 who consider no...
From £2,352
Projema is a construction project Management Company dealing with all aspects of residential and commercial construction management in London and s...
From £2,544
Warlingham, CR6
Experienced extension builder ready to quote for your work. Parmenter Builders Limited is the best extension builder in CR6. No obligation free quo...
From £2,240
TP Construction Ltd is an established extension buildering business in CR6. We come highly recommended and provide competitive quotes for your work...
From £2,224
DL Jones are here to help customers who need an Extension Builder in CR6. We offer a competitive rate to complete all your extension buildering job...
From £2,240
Need to find an Extension Builder near you for all your extension buildering work?
D.E.P Building Services Ltd provides a local, trusted ex...
From £2,192
Whyteleafe, CR6
Conrad Paton Property Repair, Improvement & Management are here to help customers who need an Extension Builder in CR6. We offer a competitive rate...
From £2,384
Need an Extension Builder in CR6? PLG Building Services has been helping local clients (10 mile radius) with their extension buildering jobs for ma...
From £2,424
THOMAS & PHILLIPS CONSTRUCTION is a trusted extension builder serving customers in CR6 and the surrounding area. Contact us to today to get a compe...
From £2,504
Need an Extension Builder in CR6? Ak Construction kasko group ltd has been helping local clients (10 mile radius) with their extension buildering ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CR6 it ranges from £2,192 (Conrad Paton Property Repair, Improvement & Management based in CR6) to £2,544 (Parmenter Builders Limited based in CR6).
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 CR6 by posting a job with HaMuch and we will send it to extension builders in CR6.
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 - £17,650

Two storey extension - £88,224

Build a timber frame extension - £26,150

Build a swimming pool - £81,150

Single storey extension - £57,992

Side return extension - £43,183

Install an RSJ - £2,350

Outbuilding - £10,150

Build a Mansard loft conversion - £52,150

Loft conversion - £35,153

Build a kitchen extension - £42,150

Hip to gable loft conversion - £42,150

Granny annexe - £87,150

Garden office - £10,150

Convert a Garage - £16,150

Garage - £18,650

Build a flat roof extension - £22,150

Build a dormer loft conversion - £42,150

Concrete foundations - £6,400

Convert a bungalow loft - £29,150

Convert a basement - £39,183