Ethos Property Developments Limited is an established extension buildering business in OL5. We come highly recommended and provide competitive quot...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need an Extension Builder in OL5? W WELSBY BUILDING SERVICE has been helping local clients (20 mile radius) with their extension buildering jobs fo...
Trusted and professional extension builder in OL5. Experienced in all extension buildering work and keeping within budget and on quote. We Build ha...
Trusted and professional extension builder in OL5. Experienced in all extension buildering work and keeping within budget and on quote. Fit-on Gara...
Relax... you have found a reliable extension builder in OL5. CM BUILDING SERVICES is a friendly and reliable company based in OL5 who consider no j...
We undertake all aspects of building, including eco and natural building, in the Greater Manchester area. From extensions and conversions to kitche...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
John Ashton
Relax... you have found a reliable extension builder in OL5. JSY Electrical is a friendly and reliable company based in OL5 who consider no job as ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in OL5 it ranges from £1,384 (Valdecor based in OL8) to £2,248 (Northern Garage Conversion based in OL9).
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 OL5 by posting a job with HaMuch and we will send it to extension builders in OL5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Stalybridge | £38 | £231 |
| Install An RSJ near Ashton-under-Lyne | £36 | £232 |
| Install An RSJ near Tameside | £35 | £232 |
| Install An RSJ near Oldham | £31 | £229 |
| Install An RSJ near Dukinfield | £35 | £232 |
| Install An RSJ near Hyde | £36 | £227 |
| Install An RSJ near Chadderton | £31 | £225 |
| Install An RSJ near Failsworth | £35 | £236 |
| Install An RSJ near Royton | £30 | £225 |
| Install An RSJ near Droylsden | £34 | £237 |
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 - £17,296

Two storey extension - £87,694

Build a timber frame extension - £25,796

Build a swimming pool - £80,796

Single storey extension - £50,920

Side return extension - £39,205

Install an RSJ - £1,996

Outbuilding - £9,796

Build a Mansard loft conversion - £51,796

Loft conversion - £31,838

Build a kitchen extension - £41,796

Hip to gable loft conversion - £41,796

Granny annexe - £86,796

Garden office - £9,796

Convert a Garage - £15,796

Garage - £18,296

Build a flat roof extension - £21,796

Build a dormer loft conversion - £41,796

Concrete foundations - £6,046

Convert a bungalow loft - £28,796

Convert a basement - £35,205