Relax... you have found a reliable extension builder in Maidenhead. ABC Associates STRUCTURES 4 U is a friendly and reliable company based in Maide...
Lee Townsend
Need to find an Extension Builder near you for all your extension buildering work?
Lp Townsend Brickwork provides a local, trusted extensio...
BeautifulRenovation are here to help customers who need an Extension Builder in Maidenhead. We offer a competitive rate to complete all your extens...
MRE Maintenance Services is an established and experienced local extension builder in Maidenhead. Please contact us for a free, no obligation quote...
BDR Home Improvement are here to help customers who need an Extension Builder in Maidenhead. We offer a competitive rate to complete all your exten...
Experienced extension builder ready to quote for your work. Sherry Construction is the best extension builder in Maidenhead. No obligation free quo...
EIC Builders Ltd are here to help customers who need an Extension Builder in Maidenhead. We offer a competitive rate to complete all your extension...
Maidenhead, SL6
B.A Ruffle Building Contractor is an established extension buildering business in Maidenhead. We come highly recommended and provide competitive qu...
HAMPTON CONSTRUCTION LTD are here to help customers who need an Extension Builder in Maidenhead. We offer a competitive rate to complete all your e...
Maidenhead, SL6
Trusted and professional extension builder in Maidenhead. Experienced in all extension buildering work and keeping within budget and on quote. TENN...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Maidenhead it ranges from £1,880 (Lp Townsend Brickwork based in SL2) to £2,584 (HAMPTON CONSTRUCTION LTD based in SL2).
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 Maidenhead by posting a job with HaMuch and we will send it to extension builders in Maidenhead.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Maidenhead | £41 | £273 |
| Install An RSJ near Windsor | £41 | £271 |
| Install An RSJ near Windsor & Maidenhead | £42 | £272 |
| Install An RSJ near Slough | £42 | £272 |
| Install An RSJ near High Wycombe | £39 | £272 |
| Install An RSJ near Bracknell Forest | £41 | £287 |
| Install An RSJ near Bracknell | £41 | £285 |
| Install An RSJ near Ascot | £41 | £276 |
| Install An RSJ near Wycombe | £40 | £271 |
| Install An RSJ near Gerrards Cross | £43 | £282 |
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 - £17,562

Two storey extension - £88,094

Build a timber frame extension - £26,062

Build a swimming pool - £81,062

Single storey extension - £56,248

Side return extension - £42,202

Install an RSJ - £2,262

Outbuilding - £10,062

Build a Mansard loft conversion - £52,062

Loft conversion - £34,335

Build a kitchen extension - £42,062

Hip to gable loft conversion - £42,062

Granny annexe - £87,062

Garden office - £10,062

Convert a Garage - £16,062

Garage - £18,562

Build a flat roof extension - £22,062

Build a dormer loft conversion - £42,062

Concrete foundations - £6,312

Convert a bungalow loft - £29,062

Convert a basement - £38,202