Ethos Property Developments Limited is an established extension buildering business in Deansgate. We come highly recommended and provide competitiv...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need to find an Extension Builder near you for all your extension buildering work?
DC Contractors provides a local, trusted extension build...
Relax... you have found a reliable extension builder in Deansgate. David Anderson Builders is a friendly and reliable company based in Deansgate wh...
Need to find an Extension Builder near you for all your extension buildering work?
ESBP Specialists Ltd provides a local, trusted extension...
Trusted and professional extension builder in Deansgate. Experienced in all extension buildering work and keeping within budget and on quote. We Bu...
Need an Extension Builder in Deansgate? MK Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many y...
Trusted and professional extension builder in Deansgate. Experienced in all extension buildering work and keeping within budget and on quote. Fit-o...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Deansgate it ranges from £1,160 (Aquatec Builder based in OL10) 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 Deansgate by posting a job with HaMuch and we will send it to extension builders in Deansgate.
"Install an RSJ" - M27, job posted 09/02/26
"RSJ installation replacing a badly installed RSJ that supports a wall between the old kitchen and rear lounge. The original builder installed the incorrect weight (not heavy enough) and then proceeded to put a suppirt bar underneath by welding. The weld buckled the beam and this is how its been..." - SK4, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Manchester | £32 | £236 |
| Install An RSJ near Old Trafford | £32 | £236 |
| Install An RSJ near Salford | £32 | £237 |
| Install An RSJ near Stretford | £32 | £235 |
| Install An RSJ near Prestwich | £31 | £233 |
| Install An RSJ near Droylsden | £34 | £237 |
| Install An RSJ near Failsworth | £35 | £236 |
| Install An RSJ near Swinton | £32 | £234 |
| Install An RSJ near Reddish | £34 | £236 |
| Install An RSJ near Eccles | £32 | £236 |
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 - £17,182

Two storey extension - £87,522

Build a timber frame extension - £25,682

Build a swimming pool - £80,682

Single storey extension - £48,632

Side return extension - £37,918

Install an RSJ - £1,882

Outbuilding - £9,682

Build a Mansard loft conversion - £51,682

Loft conversion - £30,765

Build a kitchen extension - £41,682

Hip to gable loft conversion - £41,682

Granny annexe - £86,682

Garden office - £9,682

Convert a Garage - £15,682

Garage - £18,182

Build a flat roof extension - £21,682

Build a dormer loft conversion - £41,682

Concrete foundations - £5,932

Convert a bungalow loft - £28,682

Convert a basement - £33,918