From £1,952
Frank Fagan Builders, Joiners & Maintenance Contractors are here to help customers who need an Extension Builder in M30. We offer a competitive rat...
From £1,896
Advance Projects Ltd is a trusted extension builder serving customers in M30 and the surrounding area. Contact us to today to get a competitive quo...
From £2,000
Need to find an Extension Builder near you for all your extension buildering work?
AD TAYLOR JOINER & BUILDER provides a local, trusted ext...
From £1,904
Cjl Brickwork are here to help customers who need an Extension Builder in M30. We offer a competitive rate to complete all your extension builderin...
From £1,872
Relax... you have found a reliable extension builder in M30. Rdm Joinery & Building Specialists is a friendly and reliable company based in M30 who...
From £1,984
Need an Extension Builder in M30? Boothwells Building Services has been helping local clients (20 mile radius) with their extension buildering jobs...
From £2,352
With our engineers on board you can be sure that your premises maintain exactly the right temperature in all areas of all buildings for employee an...
From £1,984
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,176
Our building services company Casa Building Solutions Ltd was established in 2008. Since then we have been helping customers in Manchester and the ...
From £2,216
G P GILMORE JOINERY T/A is an established extension buildering business in M30. We come highly recommended and provide competitive quotes for you...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in M30 it ranges from £1,872 (Rdm Joinery & Building Specialists based in M27) to £2,352 (MT Group based in M41).
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 M30 by posting a job with HaMuch and we will send it to extension builders in M30.
"Install an RSJ" - M27, job posted 09/02/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Eccles | £32 | £237 |
| Install An RSJ near Swinton | £32 | £235 |
| Install An RSJ near Urmston | £32 | £231 |
| Install An RSJ near Salford | £32 | £238 |
| Install An RSJ near Stretford | £32 | £235 |
| Install An RSJ near Irlam | £32 | £225 |
| Install An RSJ near Old Trafford | £32 | £236 |
| Install An RSJ near Little Hulton | £30 | £220 |
| Install An RSJ near Trafford | £32 | £235 |
| Install An RSJ near Prestwich | £31 | £234 |
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 - £17,334

Two storey extension - £87,750

Build a timber frame extension - £25,834

Build a swimming pool - £80,834

Single storey extension - £51,672

Side return extension - £39,628

Install an RSJ - £2,034

Outbuilding - £9,834

Build a Mansard loft conversion - £51,834

Loft conversion - £32,190

Build a kitchen extension - £41,834

Hip to gable loft conversion - £41,834

Granny annexe - £86,834

Garden office - £9,834

Convert a Garage - £15,834

Garage - £18,334

Build a flat roof extension - £21,834

Build a dormer loft conversion - £41,834

Concrete foundations - £6,084

Convert a bungalow loft - £28,834

Convert a basement - £35,628