From £2,120
Relax... you have found a reliable extension builder in OX29. TG Projects Ltd is a friendly and reliable company based in OX29 who consider no job ...
From £2,192
DH Building Services (Oxford) Ltd are a family-owned building firm based in Witney with over 30 years of experience providing professional, trustwo...
From £1,912
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,232
Experienced extension builder ready to quote for your work. MILLHOUSE CONSTRUCTION LIMITED is the best extension builder in OX29. No obligation fre...
From £2,232
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £2,160
APPLEWOOD CONSTRUCTION is a trusted extension builder serving customers in OX29 and the surrounding area. Contact us to today to get a competitive ...
From £2,544
Need an Extension Builder in OX29? Yarnton Leisure Buildings has been helping local clients (20 mile radius) with their extension buildering jobs f...
From £2,296
KEITH COOK CONSTRUCTION LIMITED are here to help customers who need an Extension Builder in OX29. We offer a competitive rate to complete all your ...
From £2,440
Approved extension builder in OX29, covering 20 miles.
Whatever extension buildering work you need, including emergency repairs, hire a comp...
From £2,184
Lambert Home Builds is a trusted extension builder serving customers in OX29 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 OX29 it ranges from £1,912 (Reece Berry Building Contractor based in OX28) to £2,544 (Yarnton Leisure Buildings based in OX5).
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 OX29 by posting a job with HaMuch and we will send it to extension builders in OX29.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Witney | £32 | £244 |
| Install An RSJ near Oxford | £37 | £261 |
| Install An RSJ near Abingdon-on-Thames | £35 | £258 |
| Install An RSJ near Vale of White Horse | £36 | £271 |
| Install An RSJ near Cherwell | £35 | £249 |
| Install An RSJ near Bicester | £35 | £249 |
| Install An RSJ near Didcot | £36 | £266 |
| Install An RSJ near South Oxfordshire | £36 | £253 |
| Install An RSJ near Banbury | £33 | £239 |
| Install An RSJ near Stratton St Margaret | £37 | £238 |
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 - £17,531

Two storey extension - £88,047

Build a timber frame extension - £26,031

Build a swimming pool - £81,031

Single storey extension - £55,624

Side return extension - £41,851

Install an RSJ - £2,231

Outbuilding - £10,031

Build a Mansard loft conversion - £52,031

Loft conversion - £34,043

Build a kitchen extension - £42,031

Hip to gable loft conversion - £42,031

Granny annexe - £87,031

Garden office - £10,031

Convert a Garage - £16,031

Garage - £18,531

Build a flat roof extension - £22,031

Build a dormer loft conversion - £42,031

Concrete foundations - £6,281

Convert a bungalow loft - £29,031

Convert a basement - £37,851