From £2,304
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,416
Experienced extension builder ready to quote for your work. DRC Construction is the best extension builder in OX14. No obligation free quotes and m...
From £2,320
Bluestones Garden Design Ltd is an established and experienced local extension builder in OX14. Please contact us for a free, no obligation quote a...
From £2,336
Need to find an Extension Builder near you for all your extension buildering work?
THAMESIDE CONSTRUCTION provides a local, trusted extensi...
From £2,232
Trusted and professional extension builder in OX14. Experienced in all extension buildering work and keeping within budget and on quote. Jamie Lang...
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 £2,176
D.Bradbury Property Services are here to help customers who need an Extension Builder in OX14. We offer a competitive rate to complete all your ext...
From £2,400
The business can carry out all aspects of building work:- single or double storey extensions- kitchen and bathroom installations- p...
From £2,160
Friendly local builder... professional tidy and competitive....
From £2,184
Lambert Home Builds is a trusted extension builder serving customers in OX14 and the surrounding area. Contact us to today to get a competitive quo...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in OX14 it ranges from £2,080 (JKT BUILDERS based in OX4) to £2,416 (DRC Construction based in OX14).
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 OX14 by posting a job with HaMuch and we will send it to extension builders in OX14.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Abingdon-on-Thames | £35 | £258 |
| Install An RSJ near Didcot | £36 | £266 |
| Install An RSJ near Oxford | £37 | £265 |
| Install An RSJ near South Oxfordshire | £36 | £253 |
| Install An RSJ near Vale of White Horse | £36 | £271 |
| Install An RSJ near Witney | £32 | £244 |
| Install An RSJ near Cherwell | £35 | £249 |
| Install An RSJ near Bicester | £35 | £249 |
| Install An RSJ near Caversham | £38 | £266 |
| Install An RSJ near Newbury | £37 | £262 |
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 - £17,561

Two storey extension - £88,091

Build a timber frame extension - £26,061

Build a swimming pool - £81,061

Single storey extension - £56,216

Side return extension - £42,184

Install an RSJ - £2,261

Outbuilding - £10,061

Build a Mansard loft conversion - £52,061

Loft conversion - £34,320

Build a kitchen extension - £42,061

Hip to gable loft conversion - £42,061

Granny annexe - £87,061

Garden office - £10,061

Convert a Garage - £16,061

Garage - £18,561

Build a flat roof extension - £22,061

Build a dormer loft conversion - £42,061

Concrete foundations - £6,311

Convert a bungalow loft - £29,061

Convert a basement - £38,184