Banbury, OX16
CEDAR INTERIORS LIMITED are here to help customers who need an Extension Builder in Banbury. We offer a competitive rate to complete all your exten...
Need an Extension Builder in Banbury? A C SPENCER BUILDERS has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £2,016
Trusted and professional extension builder in Banbury. Experienced in all extension buildering work and keeping within budget and on quote. P GEORG...
From £1,984
garry
ADVANCED BUILDING CONCEPTS is an established and experienced local extension builder in Banbury. Please contact us for a free, no obligation quote ...
From £2,104
Banbury, OX16
NJM GENERAL BUILDING CONTRACTO is an established and experienced local extension builder in Banbury. Please contact us for a free, no obligation qu...
From £2,352
Haras Building Contractors Ltd is a family run business with over 20 years experience within the building trade. We firmly believe in and work from...
From £1,968
UJ Developments is an established extension buildering business in Banbury. 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 Banbury it ranges from £1,968 (UJ Developments based in NN13) to £2,352 (Haras Building Contractors Ltd based in OX16).
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 Banbury by posting a job with HaMuch and we will send it to extension builders in Banbury.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Banbury | £33 | £239 |
| Install An RSJ near Cherwell | £35 | £249 |
| Install An RSJ near Bicester | £35 | £249 |
| Install An RSJ near Daventry | £31 | £230 |
| Install An RSJ near Leamington Spa | £27 | £212 |
| Install An RSJ near Stratford-upon-Avon | £27 | £215 |
| Install An RSJ near Stratford-on-Avon | £27 | £215 |
| Install An RSJ near Warwick | £28 | £213 |
| Install An RSJ near Witney | £32 | £244 |
| Install An RSJ near Rugby | £31 | £224 |
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 - £17,398

Two storey extension - £87,847

Build a timber frame extension - £25,898

Build a swimming pool - £80,898

Single storey extension - £52,966

Side return extension - £40,356

Install an RSJ - £2,098

Outbuilding - £9,898

Build a Mansard loft conversion - £51,898

Loft conversion - £32,796

Build a kitchen extension - £41,898

Hip to gable loft conversion - £41,898

Granny annexe - £86,898

Garden office - £9,898

Convert a Garage - £15,898

Garage - £18,398

Build a flat roof extension - £21,898

Build a dormer loft conversion - £41,898

Concrete foundations - £6,148

Convert a bungalow loft - £28,898

Convert a basement - £36,356