From £2,680
On time/ professional/ time served/trustworthy
From £3,112
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
From £2,120
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,096
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
2 reviews
From £2,464
30 years experience In building . Plastering and colour renders
"Totally unreliable, takes your money and doesn't finish the job." - NORTH EAST,reviewed 04/10/17, L S
From £1,960
Trusted and professional extension builder in Crook & Willington. Experienced in all extension buildering work and keeping within budget and on quo...
From £2,304
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in Crook & Willington. Please contact us for a free, no obligati...
From £1,944
Trusted and professional extension builder in Crook & Willington. Experienced in all extension buildering work and keeping within budget and on quo...
From £2,008
ANDREW HUNTER BUILDING SERVICES is an established and experienced local extension builder in Crook & Willington. Please contact us for a free, no o...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Crook & Willington it ranges from £1,944 (Empire Building Contracts based in TS18) to £3,112 (Radici Construction North East Ltd based in DH1).
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 Crook & Willington by posting a job with HaMuch and we will send it to extension builders in Crook & Willington.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Bishop Auckland | £39 | £247 |
| Install An RSJ near Spennymoor | £38 | £248 |
| Install An RSJ near Durham | £47 | £267 |
| Install An RSJ near Newton Aycliffe | £39 | £227 |
| Install An RSJ near Consett | £33 | £241 |
| Install An RSJ near Stanley | £34 | £242 |
| Install An RSJ near Chester-le-Street | £35 | £242 |
| Install An RSJ near Darlington | £60 | £222 |
| Install An RSJ near Washington | £33 | £254 |
| Install An RSJ near Sunderland | £33 | £251 |
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 - £17,589

Two storey extension - £88,133

Build a timber frame extension - £26,089

Build a swimming pool - £81,089

Single storey extension - £56,776

Side return extension - £42,499

Install an RSJ - £2,289

Outbuilding - £10,089

Build a Mansard loft conversion - £52,089

Loft conversion - £34,583

Build a kitchen extension - £42,089

Hip to gable loft conversion - £42,089

Granny annexe - £87,089

Garden office - £10,089

Convert a Garage - £16,089

Garage - £18,589

Build a flat roof extension - £22,089

Build a dormer loft conversion - £42,089

Concrete foundations - £6,339

Convert a bungalow loft - £29,089

Convert a basement - £38,499