Benchmark Builders is a trusted extension builder serving customers in HX5 and the surrounding area. Contact us to today to get a competitive quote...
Need to find an Extension Builder near you for all your extension buildering work?
MEP Building Services provides a local, trusted extensio...
iConstruction are here to help customers who need an Extension Builder in HX5. We offer a competitive rate to complete all your extension builderin...
From £1,768
Gary Ingham
Trusted and professional extension builder in HX5. Experienced in all extension buildering work and keeping within budget and on quote. GARY INGHAM...
From £4,920
Relax... you have found a reliable extension builder in HX5. Diamond Construction (Glazing) is a friendly and reliable company based in HX5 who con...
From £2,064
Haven Building and Maintenance Ltd is a trusted extension builder serving customers in HX5 and the surrounding area. Contact us to today to get a c...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in HX5 it ranges from £1,768 (GARY INGHAM JOINERY & BLDG LTD based in HX6) to £4,920 (Diamond Construction (Glazing) based in HX6).
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 HX5 by posting a job with HaMuch and we will send it to extension builders in HX5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Brighouse | £30 | £230 |
| Install An RSJ near Halifax | £32 | £243 |
| Install An RSJ near Huddersfield | £29 | £224 |
| Install An RSJ near Mirfield | £31 | £236 |
| Install An RSJ near Kirklees | £30 | £231 |
| Install An RSJ near Holmfirth | £30 | £232 |
| Install An RSJ near Calderdale | £33 | £253 |
| Install An RSJ near Bradford | £29 | £224 |
| Install An RSJ near Batley | £32 | £239 |
| Install An RSJ near Dewsbury | £33 | £245 |
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 - £17,751

Two storey extension - £88,376

Build a timber frame extension - £26,251

Build a swimming pool - £81,251

Single storey extension - £60,013

Side return extension - £44,320

Install an RSJ - £2,451

Outbuilding - £10,251

Build a Mansard loft conversion - £52,251

Loft conversion - £36,100

Build a kitchen extension - £42,251

Hip to gable loft conversion - £42,251

Granny annexe - £87,251

Garden office - £10,251

Convert a Garage - £16,251

Garage - £18,751

Build a flat roof extension - £22,251

Build a dormer loft conversion - £42,251

Concrete foundations - £6,501

Convert a bungalow loft - £29,251

Convert a basement - £40,320