From £1,984
Relax... you have found a reliable extension builder in Washington. ORILLA CONSTRUCTION SOLUTIONS is a friendly and reliable company based in Washi...
From £3,080
Washington, NE37
Established 1983 . For more info visit web site please . Worked in industry for over 40 years.
From £2,480
HST ENG LTD is an established extension buildering business in Washington. We come highly recommended and provide competitive quotes for your work....
From £2,048
Skyline Loft Conversions (NE) Ltd is an established and experienced local extension builder in Washington. Please contact us for a free, no obligat...
From £2,112
Our building services company Home Grown NE has been providing professional, trustworthy building services to customers throughout the North-East f...
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 £5,192
Trusted and professional extension builder in Washington. Experienced in all extension buildering work and keeping within budget and on quote. Davi...
From £2,392
Dave Ogle is an established and experienced local extension builder in Washington. Please contact us for a free, no obligation quote and competitiv...
From £2,032
Experienced extension builder ready to quote for your work. L F BUILDING & JOINERY is the best extension builder in Washington. No obligation free ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Washington it ranges from £1,240 (OCC Construction based in NE10) 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 Washington by posting a job with HaMuch and we will send it to extension builders in Washington.
"RSJ installation" - SUNDERLAND, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Washington | £33 | £251 |
| Install An RSJ near Sunderland | £33 | £251 |
| Install An RSJ near Chester-le-Street | £35 | £242 |
| Install An RSJ near Gateshead | £33 | £234 |
| Install An RSJ near Jarrow | £34 | £261 |
| Install An RSJ near Hebburn | £34 | £244 |
| Install An RSJ near South Tyneside | £34 | £261 |
| Install An RSJ near Newcastle Upon Tyne | £33 | £233 |
| Install An RSJ near Wallsend | £34 | £242 |
| Install An RSJ near Stanley | £34 | £242 |
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 - £17,824

Two storey extension - £88,486

Build a timber frame extension - £26,324

Build a swimming pool - £81,324

Single storey extension - £61,480

Side return extension - £45,145

Install an RSJ - £2,524

Outbuilding - £10,324

Build a Mansard loft conversion - £52,324

Loft conversion - £36,788

Build a kitchen extension - £42,324

Hip to gable loft conversion - £42,324

Granny annexe - £87,324

Garden office - £10,324

Convert a Garage - £16,324

Garage - £18,824

Build a flat roof extension - £22,324

Build a dormer loft conversion - £42,324

Concrete foundations - £6,574

Convert a bungalow loft - £29,324

Convert a basement - £41,145