BP Builders are here to help customers who need an Extension Builder in S8. We offer a competitive rate to complete all your extension buildering j...
Hallamshire Paving is an established and experienced local extension builder in S8. Please contact us for a free, no obligation quote and competiti...
Woodtec Joinery is an established extension buildering business in S8. We come highly recommended and provide competitive quotes for your work.
...Trusted and professional extension builder in S8. 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 ...
Need to find an Extension Builder near you for all your extension buildering work?
A B Building Roofing Services provides a local, trusted ...
Relax... you have found a reliable extension builder in S8. CS Construction & Conversions is a friendly and reliable company based in S8 who consid...
Trusted and professional extension builder in S8. Experienced in all extension buildering work and keeping within budget and on quote. Merebrook Co...
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...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in S8 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 S8 by posting a job with HaMuch and we will send it to extension builders in S8.
"RSJ installation" - SHEFFIELD, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Dronfield | £33 | £262 |
| Install An RSJ near Sheffield | £32 | £261 |
| Install An RSJ near Chesterfield | £33 | £257 |
| Install An RSJ near Rotherham | £33 | £257 |
| Install An RSJ near Wickersley | £33 | £257 |
| Install An RSJ near Worksop | £33 | £265 |
| Install An RSJ near Barnsley | £31 | £242 |
| Install An RSJ near Mansfield Woodhouse | £33 | £262 |
| Install An RSJ near Alfreton | £34 | £261 |
| Install An RSJ near Sutton-in-Ashfield | £33 | £264 |
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 - £17,480

Two storey extension - £87,970

Build a timber frame extension - £25,980

Build a swimming pool - £80,980

Single storey extension - £54,600

Side return extension - £41,275

Install an RSJ - £2,180

Outbuilding - £9,980

Build a Mansard loft conversion - £51,980

Loft conversion - £33,563

Build a kitchen extension - £41,980

Hip to gable loft conversion - £41,980

Granny annexe - £86,980

Garden office - £9,980

Convert a Garage - £15,980

Garage - £18,480

Build a flat roof extension - £21,980

Build a dormer loft conversion - £41,980

Concrete foundations - £6,230

Convert a bungalow loft - £28,980

Convert a basement - £37,275