From £2,080
Relax... you have found a reliable extension builder in OX44. JOHN BURDER CONSTRUCTION LIMIT is a friendly and reliable company based in OX44 who c...
From £2,552
Draisey is an established extension buildering business in OX44. We come highly recommended and provide competitive quotes for your work.
From £2,192
Need to find an Extension Builder near you for all your extension buildering work?
Brian Watts Partners Ltd provides a local, trusted exten...
From £2,080
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,416
Need to find an Extension Builder near you for all your extension buildering work?
BA Knott Oxford Ltd provides a local, trusted extension ...
From £2,056
AJC PROJECT SERVICES Ltd is an established and experienced local extension builder in OX44. Please contact us for a free, no obligation quote and c...
From £2,392
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £216
Trusted and professional extension builder in OX44. Experienced in all extension buildering work and keeping within budget and on quote. Beaumont D...
From £2,296
Trusted and professional extension builder in OX44. Experienced in all extension buildering work and keeping within budget and on quote. E.N.K. Con...
From £2,232
CROWN CONSTRUCTION is an established extension buildering business in OX44. We come highly recommended and provide competitive quotes for your work...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in OX44 it ranges from £216 (Beaumont Design & Build Ltd based in OX4) to £2,552 (Draisey based in ox33).
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 OX44 by posting a job with HaMuch and we will send it to extension builders in OX44.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near South Oxfordshire | £36 | £253 |
| Install An RSJ near Oxford | £37 | £261 |
| Install An RSJ near Abingdon-on-Thames | £35 | £258 |
| Install An RSJ near Didcot | £36 | £266 |
| Install An RSJ near Cherwell | £35 | £249 |
| Install An RSJ near Bicester | £35 | £249 |
| Install An RSJ near Wycombe | £39 | £271 |
| Install An RSJ near Aylesbury | £42 | £270 |
| Install An RSJ near Vale of White Horse | £36 | £271 |
| Install An RSJ near High Wycombe | £39 | £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 - £17,351

Two storey extension - £87,777

Build a timber frame extension - £25,851

Build a swimming pool - £80,851

Single storey extension - £52,024

Side return extension - £39,826

Install an RSJ - £2,051

Outbuilding - £9,851

Build a Mansard loft conversion - £51,851

Loft conversion - £32,355

Build a kitchen extension - £41,851

Hip to gable loft conversion - £41,851

Granny annexe - £86,851

Garden office - £9,851

Convert a Garage - £15,851

Garage - £18,351

Build a flat roof extension - £21,851

Build a dormer loft conversion - £41,851

Concrete foundations - £6,101

Convert a bungalow loft - £28,851

Convert a basement - £35,826