From £2,680
On time/ professional/ time served/trustworthy
From £1,240
Member since July 2020
I have over 40 years experience in the field of construction. Thank you and I hope I will be of service to you.
From £1,984
Trusted and professional extension builder in Castletown. Experienced in all extension buildering work and keeping within budget and on quote. DGS ...
From £2,680
Arrowhead Construction is a trusted extension builder serving customers in Castletown and the surrounding area. Contact us to today to get a compet...
From £2,192
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £3,112
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
From £2,008
ANDREW HUNTER BUILDING SERVICES is an established and experienced local extension builder in Castletown. Please contact us for a free, no obligatio...
From £1,728
Experienced extension builder ready to quote for your work. KIETH GRAY ROOFING & BUILDING is the best extension builder in Castletown. No obligatio...
From £2,136
Building Craft Ltd is an established extension buildering business in Castletown. We come highly recommended and provide competitive quotes for you...
From £2,184
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 Castletown it ranges from £1,240 (OCC Construction based in NE10) 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 Castletown by posting a job with HaMuch and we will send it to extension builders in Castletown.
"RSJ installation" - SUNDERLAND, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near South Tyneside | £34 | £261 |
| Install An RSJ near Sunderland | £33 | £251 |
| Install An RSJ near Jarrow | £34 | £262 |
| Install An RSJ near Washington | £33 | £254 |
| Install An RSJ near South Shields | £36 | £257 |
| Install An RSJ near Hebburn | £34 | £246 |
| Install An RSJ near Wallsend | £34 | £245 |
| Install An RSJ near Tynemouth | £36 | £257 |
| Install An RSJ near Seaham | £35 | £235 |
| Install An RSJ near North Tyneside | £35 | £253 |
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 - £17,494

Two storey extension - £87,992

Build a timber frame extension - £25,994

Build a swimming pool - £80,994

Single storey extension - £54,888

Side return extension - £41,437

Install an RSJ - £2,194

Outbuilding - £9,994

Build a Mansard loft conversion - £51,994

Loft conversion - £33,698

Build a kitchen extension - £41,994

Hip to gable loft conversion - £41,994

Granny annexe - £86,994

Garden office - £9,994

Convert a Garage - £15,994

Garage - £18,494

Build a flat roof extension - £21,994

Build a dormer loft conversion - £41,994

Concrete foundations - £6,244

Convert a bungalow loft - £28,994

Convert a basement - £37,437