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 Bigby it ranges from £1,952 (Eden Homes Design based in Ln7) to £1,952 (Eden Homes Design based in Ln7).
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 Bigby by posting a job with HaMuch and we will send it to extension builders in Bigby.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near North Lincolnshire | £28 | £216 |
| Install An RSJ near Scunthorpe | £26 | £207 |
| Install An RSJ near North East Lincolnshire | £32 | £246 |
| Install An RSJ near Grimsby | £32 | £246 |
| Install An RSJ near Hull | £29 | £223 |
| Install An RSJ near Willerby | £29 | £221 |
| Install An RSJ near Cleethorpes | £32 | £246 |
| Install An RSJ near Gainsborough | £30 | £234 |
| Install An RSJ near East Riding | £29 | £223 |
| Install An RSJ near Beverley | £29 | £223 |
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 - £17,252

Two storey extension - £87,628

Build a timber frame extension - £25,752

Build a swimming pool - £80,752

Single storey extension - £50,040

Side return extension - £38,710

Install an RSJ - £1,952

Outbuilding - £9,752

Build a Mansard loft conversion - £51,752

Loft conversion - £31,425

Build a kitchen extension - £41,752

Hip to gable loft conversion - £41,752

Granny annexe - £86,752

Garden office - £9,752

Convert a Garage - £15,752

Garage - £18,252

Build a flat roof extension - £21,752

Build a dormer loft conversion - £41,752

Concrete foundations - £6,002

Convert a bungalow loft - £28,752

Convert a basement - £34,710