Experienced extension builder ready to quote for your work. Avalon Building Services Ltd is the best extension builder in RG21. No obligation free ...
D W BUILDERS is a trusted extension builder serving customers in RG21 and the surrounding area. Contact us to today to get a competitive quote for ...
J & M Building Services are here to help customers who need an Extension Builder in RG21. We offer a competitive rate to complete all your extensio...
Relax... you have found a reliable extension builder in RG21. Parkhouse Roofing is a friendly and reliable company based in RG21 who consider no jo...
Experienced extension builder ready to quote for your work. S & M Builders is the best extension builder in RG21. No obligation free quotes and man...
John McKinney Building is an established extension buildering business in RG21. We come highly recommended and provide competitive quotes for your ...
Relax... you have found a reliable extension builder in RG21. CHAMPION BUILD LTD is a friendly and reliable company based in RG21 who consider no j...
Trusted and professional extension builder in RG21. Experienced in all extension buildering work and keeping within budget and on quote. OAK BUILDI...
Tony Gawn
Experienced extension builder ready to quote for your work. D L P ASSOCIATES (BUILDINGS) is the best extension builder in RG21. No obligation free ...
From £2,464
Need an Extension Builder in RG21? BUILD IT DEVELOPMENT LIMITED has been helping local clients (20 mile radius) with their extension buildering job...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in RG21 it ranges from £2,136 (OAK BUILDING MANAGEMENT LTD based in RG22) to £2,888 (D L P ASSOCIATES (BUILDINGS) based in RG27).
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 RG21 by posting a job with HaMuch and we will send it to extension builders in RG21.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Basingstoke | £39 | £274 |
| Install An RSJ near Basingstoke & Deane | £39 | £273 |
| Install An RSJ near Fleet | £41 | £270 |
| Install An RSJ near Thatcham | £38 | £266 |
| Install An RSJ near Farnham | £41 | £276 |
| Install An RSJ near Newbury | £37 | £262 |
| Install An RSJ near Reading | £42 | £266 |
| Install An RSJ near Sandhurst | £41 | £283 |
| Install An RSJ near Aldershot | £41 | £275 |
| Install An RSJ near Farnborough | £41 | £272 |
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 - £17,706

Two storey extension - £88,308

Build a timber frame extension - £26,206

Build a swimming pool - £81,206

Single storey extension - £59,112

Side return extension - £43,813

Install an RSJ - £2,406

Outbuilding - £10,206

Build a Mansard loft conversion - £52,206

Loft conversion - £35,678

Build a kitchen extension - £42,206

Hip to gable loft conversion - £42,206

Granny annexe - £87,206

Garden office - £10,206

Convert a Garage - £16,206

Garage - £18,706

Build a flat roof extension - £22,206

Build a dormer loft conversion - £42,206

Concrete foundations - £6,456

Convert a bungalow loft - £29,206

Convert a basement - £39,813