BP Builders are here to help customers who need an Extension Builder in S65. We offer a competitive rate to complete all your extension buildering ...
Hallamshire Paving is an established and experienced local extension builder in S65. Please contact us for a free, no obligation quote and competit...
Woodtec Joinery is an established extension buildering business in S65. We come highly recommended and provide competitive quotes for your work.
Trusted and professional extension builder in S65. Experienced in all extension buildering work and keeping within budget and on quote. AMB Joinery...
We are a family run business with 20 years experience.
We take great care and attention to the work we carry out and pride ourselves on ...
Relax... you have found a reliable extension builder in S65. CS Construction & Conversions is a friendly and reliable company based in S65 who cons...
Trusted and professional extension builder in S65. Experienced in all extension buildering work and keeping within budget and on quote. Merebrook C...
Dore Decor are a family run business with over 30 years experience - we offer an extensive range of building services and are able to provide a ful...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in S65 it ranges from £1,488 (JON WINDLE CONSTRUCTION based in S17) to £2,544 (AMB Joinery & Building Services based in S8).
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 S65 by posting a job with HaMuch and we will send it to extension builders in S65.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Rotherham | £33 | £257 |
| Install An RSJ near Wickersley | £33 | £257 |
| Install An RSJ near Sheffield | £32 | £261 |
| Install An RSJ near Doncaster | £29 | £238 |
| Install An RSJ near Barnsley | £31 | £242 |
| Install An RSJ near Dronfield | £33 | £262 |
| Install An RSJ near Worksop | £33 | £265 |
| Install An RSJ near Chesterfield | £33 | £257 |
| Install An RSJ near Bassetlaw | £31 | £243 |
| Install An RSJ near Pontefract | £30 | £228 |
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 - £17,492

Two storey extension - £87,988

Build a timber frame extension - £25,992

Build a swimming pool - £80,992

Single storey extension - £54,840

Side return extension - £41,410

Install an RSJ - £2,192

Outbuilding - £9,992

Build a Mansard loft conversion - £51,992

Loft conversion - £33,675

Build a kitchen extension - £41,992

Hip to gable loft conversion - £41,992

Granny annexe - £86,992

Garden office - £9,992

Convert a Garage - £15,992

Garage - £18,492

Build a flat roof extension - £21,992

Build a dormer loft conversion - £41,992

Concrete foundations - £6,242

Convert a bungalow loft - £28,992

Convert a basement - £37,410