From £2,480
HST ENG LTD is an established extension buildering business in DH3. We come highly recommended and provide competitive quotes for your work.
From £2,032
Experienced extension builder ready to quote for your work. L F BUILDING & JOINERY is the best extension builder in DH3. No obligation free quotes ...
From £1,984
Relax... you have found a reliable extension builder in DH3. ORILLA CONSTRUCTION SOLUTIONS is a friendly and reliable company based in DH3 who cons...
From £2,048
Skyline Loft Conversions (NE) Ltd is an established and experienced local extension builder in DH3. Please contact us for a free, no obligation quo...
From £3,080
Established 1983 . For more info visit web site please . Worked in industry for over 40 years.
From £2,112
Need an Extension Builder in DH3? Spacesaver Loft Storage has been helping local clients (20 mile radius) with their extension buildering jobs for ...
From £2,096
S & A W Joinery & Construction is a trusted extension builder serving customers in DH3 and the surrounding area. Contact us to today to get a compe...
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 £3,112
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
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.

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in DH3 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 DH3 by posting a job with HaMuch and we will send it to extension builders in DH3.
"RSJ installation" - SUNDERLAND
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Chester-le-Street | £35 | £242 |
| Install An RSJ near Washington | £33 | £251 |
| Install An RSJ near Sunderland | £33 | £251 |
| Install An RSJ near Stanley | £34 | £242 |
| Install An RSJ near Gateshead | £33 | £234 |
| Install An RSJ near Durham | £47 | £267 |
| Install An RSJ near Hebburn | £34 | £244 |
| Install An RSJ near Jarrow | £34 | £261 |
| Install An RSJ near Newcastle Upon Tyne | £33 | £233 |
| Install An RSJ near South Tyneside | £34 | £261 |
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 - £17,530

Two storey extension - £88,044

Build a timber frame extension - £26,030

Build a swimming pool - £81,030

Single storey extension - £55,592

Side return extension - £41,833

Install an RSJ - £2,230

Outbuilding - £10,030

Build a Mansard loft conversion - £52,030

Loft conversion - £34,028

Build a kitchen extension - £42,030

Hip to gable loft conversion - £42,030

Granny annexe - £87,030

Garden office - £10,030

Convert a Garage - £16,030

Garage - £18,530

Build a flat roof extension - £22,030

Build a dormer loft conversion - £42,030

Concrete foundations - £6,280

Convert a bungalow loft - £29,030

Convert a basement - £37,833