Jamie Brant
Trusted and professional extension builder in Basingstoke. Experienced in all extension buildering work and keeping within budget and on quote. Bra...
Basingstoke, RG21
Experienced extension builder ready to quote for your work. Avalon Building Services Ltd is the best extension builder in Basingstoke. No obligatio...
D W BUILDERS is a trusted extension builder serving customers in Basingstoke and the surrounding area. Contact us to today to get a competitive quo...
Need to find an Extension Builder near you for all your extension buildering work?
M Warwick (Builders) provides a local, trusted extension...
J & M Building Services are here to help customers who need an Extension Builder in Basingstoke. We offer a competitive rate to complete all your e...
Basingstoke, RG22
Relax... you have found a reliable extension builder in Basingstoke. Parkhouse Roofing is a friendly and reliable company based in Basingstoke who ...
Experienced extension builder ready to quote for your work. S & M Builders is the best extension builder in Basingstoke. No obligation free quotes ...
Basingstoke, RG21
John McKinney Building is an established extension buildering business in Basingstoke. We come highly recommended and provide competitive quotes fo...
Ash Brice
APB provides a range of building services, including carpentry, plastering and decorating but specializing in stone, brick and tile. If you ne...
Relax... you have found a reliable extension builder in Basingstoke. CHAMPION BUILD LTD is a friendly and reliable company based in Basingstoke who...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Basingstoke it ranges from £2,248 (S & M Builders based in RG22) to £2,632 (Brant Builders based in RG26).
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 Basingstoke by posting a job with HaMuch and we will send it to extension builders in Basingstoke.
| 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 - £17,722

Two storey extension - £88,334

Build a timber frame extension - £26,222

Build a swimming pool - £81,222

Single storey extension - £59,448

Side return extension - £44,002

Install an RSJ - £2,422

Outbuilding - £10,222

Build a Mansard loft conversion - £52,222

Loft conversion - £35,835

Build a kitchen extension - £42,222

Hip to gable loft conversion - £42,222

Granny annexe - £87,222

Garden office - £10,222

Convert a Garage - £16,222

Garage - £18,722

Build a flat roof extension - £22,222

Build a dormer loft conversion - £42,222

Concrete foundations - £6,472

Convert a bungalow loft - £29,222

Convert a basement - £40,002