From £2,208
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 ...
From £2,136
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...
From £2,312
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,544
Trusted and professional extension builder in Conisbrough. Experienced in all extension buildering work and keeping within budget and on quote. AMB...
From £2,288
Hallamshire Paving is an established and experienced local extension builder in Conisbrough. Please contact us for a free, no obligation quote and ...
From £2,184
BP Builders are here to help customers who need an Extension Builder in Conisbrough. We offer a competitive rate to complete all your extension bui...
From £2,064
Trusted and professional extension builder in Conisbrough. Experienced in all extension buildering work and keeping within budget and on quote. MGG...
From £2,472
R.J Building Services is an established extension buildering business in Conisbrough. We come highly recommended and provide competitive quotes for...
From £2,024
Relax... you have found a reliable extension builder in Conisbrough. Foundation Building Services is a friendly and reliable company based in Conis...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Conisbrough 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 Conisbrough by posting a job with HaMuch and we will send it to extension builders in Conisbrough.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Doncaster | £29 | £238 |
| Install An RSJ near Wickersley | £33 | £257 |
| Install An RSJ near Rotherham | £33 | £257 |
| Install An RSJ near Barnsley | £31 | £242 |
| Install An RSJ near Sheffield | £32 | £261 |
| Install An RSJ near Worksop | £33 | £265 |
| Install An RSJ near Pontefract | £30 | £228 |
| Install An RSJ near Bassetlaw | £31 | £243 |
| Install An RSJ near Retford | £31 | £243 |
| Install An RSJ near Dronfield | £33 | £262 |
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 - £17,472

Two storey extension - £87,958

Build a timber frame extension - £25,972

Build a swimming pool - £80,972

Single storey extension - £54,440

Side return extension - £41,185

Install an RSJ - £2,172

Outbuilding - £9,972

Build a Mansard loft conversion - £51,972

Loft conversion - £33,488

Build a kitchen extension - £41,972

Hip to gable loft conversion - £41,972

Granny annexe - £86,972

Garden office - £9,972

Convert a Garage - £15,972

Garage - £18,472

Build a flat roof extension - £21,972

Build a dormer loft conversion - £41,972

Concrete foundations - £6,222

Convert a bungalow loft - £28,972

Convert a basement - £37,185