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Select your affordable HX4 extension builder
Need to find an Extension Builder near you for all your extension buildering work?
MEP Building Services provides a local, trusted extensio...
Benchmark Builders is a trusted extension builder serving customers in HX4 and the surrounding area. Contact us to today to get a competitive quote...
From £1,768
Gary Ingham
Trusted and professional extension builder in HX4. 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 HX4. Diamond Construction (Glazing) is a friendly and reliable company based in HX4 who con...
From £2,064
Haven Building and Maintenance Ltd is a trusted extension builder serving customers in HX4 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 HX4 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 HX4 by posting a job with HaMuch and we will send it to extension builders in HX4.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Halifax | £32 | £243 |
| Install An RSJ near Brighouse | £30 | £230 |
| Install An RSJ near Huddersfield | £29 | £224 |
| Install An RSJ near Calderdale | £33 | £253 |
| Install An RSJ near Kirklees | £30 | £231 |
| Install An RSJ near Mirfield | £31 | £236 |
| Install An RSJ near Holmfirth | £30 | £232 |
| Install An RSJ near Bradford | £29 | £225 |
| 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 - £17,855

Two storey extension - £88,533

Build a timber frame extension - £26,355

Build a swimming pool - £81,355

Single storey extension - £62,104

Side return extension - £45,496

Install an RSJ - £2,555

Outbuilding - £10,355

Build a Mansard loft conversion - £52,355

Loft conversion - £37,080

Build a kitchen extension - £42,355

Hip to gable loft conversion - £42,355

Granny annexe - £87,355

Garden office - £10,355

Convert a Garage - £16,355

Garage - £18,855

Build a flat roof extension - £22,355

Build a dormer loft conversion - £42,355

Concrete foundations - £6,605

Convert a bungalow loft - £29,355

Convert a basement - £41,496