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Building Craft Ltd is an established extension buildering business in SR4. We come highly recommended and provide competitive quotes for your work....
Ian
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
David Robertson
Trusted and professional extension builder in SR4. Experienced in all extension buildering work and keeping within budget and on quote. David Robe...
STEVE MULVANEY BUILDING are here to help customers who need an Extension Builder in SR4. We offer a competitive rate to complete all your extension...
From £3,080
John Barrett
Established 1983 . For more info visit web site please . Worked in industry for over 40 years.
From £2,112
Our building services company Home Grown NE has been providing professional, trustworthy building services to customers throughout the North-East f...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SR4 it ranges from £2,112 (STEVE MULVANEY BUILDING based in SR2) to £5,192 (David Robertson builders based in Sr4).
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 SR4 by posting a job with HaMuch and we will send it to extension builders in SR4.
"RSJ installation" - SUNDERLAND, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Sunderland | £33 | £251 |
| Install An RSJ near Washington | £33 | £254 |
| Install An RSJ near South Tyneside | £34 | £261 |
| Install An RSJ near Jarrow | £34 | £262 |
| Install An RSJ near Seaham | £35 | £235 |
| Install An RSJ near Hebburn | £34 | £246 |
| Install An RSJ near South Shields | £36 | £257 |
| Install An RSJ near Chester-le-Street | £35 | £242 |
| Install An RSJ near Wallsend | £34 | £245 |
| Install An RSJ near Gateshead | £33 | £236 |
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 - £18,103

Two storey extension - £88,904

Build a timber frame extension - £26,603

Build a swimming pool - £81,603

Single storey extension - £67,053

Side return extension - £48,280

Install an RSJ - £2,803

Outbuilding - £10,603

Build a Mansard loft conversion - £52,603

Loft conversion - £39,400

Build a kitchen extension - £42,603

Hip to gable loft conversion - £42,603

Granny annexe - £87,603

Garden office - £10,603

Convert a Garage - £16,603

Garage - £19,103

Build a flat roof extension - £22,603

Build a dormer loft conversion - £42,603

Concrete foundations - £6,853

Convert a bungalow loft - £29,603

Convert a basement - £44,280