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CEDAR INTERIORS LIMITED are here to help customers who need an Extension Builder in OX17. We offer a competitive rate to complete all your extensio...
From £1,984
garry
ADVANCED BUILDING CONCEPTS is an established and experienced local extension builder in OX17. Please contact us for a free, no obligation quote and...
From £2,104
NJM GENERAL BUILDING CONTRACTO is an established and experienced local extension builder in OX17. Please contact us for a free, no obligation quote...
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...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in OX17 it ranges from £1,984 (ADVANCED BUILDING CONCEPTS based in OX17) 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 OX17 by posting a job with HaMuch and we will send it to extension builders in OX17.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Banbury | £33 | £239 |
| Install An RSJ near Daventry | £31 | £230 |
| Install An RSJ near Bicester | £35 | £249 |
| Install An RSJ near Cherwell | £35 | £249 |
| Install An RSJ near Leamington Spa | £27 | £212 |
| Install An RSJ near Warwick | £28 | £213 |
| Install An RSJ near Stratford-on-Avon | £27 | £215 |
| Install An RSJ near Stratford-upon-Avon | £27 | £215 |
| Install An RSJ near Northampton | £35 | £239 |
| 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 - £17,418

Two storey extension - £87,877

Build a timber frame extension - £25,918

Build a swimming pool - £80,918

Single storey extension - £53,360

Side return extension - £40,578

Install an RSJ - £2,118

Outbuilding - £9,918

Build a Mansard loft conversion - £51,918

Loft conversion - £32,981

Build a kitchen extension - £41,918

Hip to gable loft conversion - £41,918

Granny annexe - £86,918

Garden office - £9,918

Convert a Garage - £15,918

Garage - £18,418

Build a flat roof extension - £21,918

Build a dormer loft conversion - £41,918

Concrete foundations - £6,168

Convert a bungalow loft - £28,918

Convert a basement - £36,578