Experienced extension builder ready to quote for your work. Advanced Builders & Roofers is the best extension builder in M27. No obligation free qu...
Homeowners look no further if you want a qualified extension builder to work in your home. T K O Kitchens & Construction are tidy and neat, providi...
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 M27. David Anderson Builders is a friendly and reliable company based in M27 who consider n...
Jonathan
Need to find an Extension Builder near you for all your extension buildering work?
ESBP Specialists Ltd provides a local, trusted extension...
Here at RC Building Services Ltd we pride ourselves on providing reliable, excellent quality and competitively priced building services. Our priori...
BRENCOLL BUILDING is an established extension buildering business in M27. We come highly recommended and provide competitive quotes for your work.<...
Simon Schofield
A AND S SCHOFIELD BLDRS LTD is an established extension buildering business in M27. We come highly recommended and provide competitive quotes for y...
Trusted and professional extension builder in M27. Experienced in all extension buildering work and keeping within budget and on quote. Contact Con...
Cjl Brickwork are here to help customers who need an Extension Builder in M27. We offer a competitive rate to complete all your extension builderin...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in M27 it ranges from £1,672 (A AND S SCHOFIELD BLDRS LTD based in BL3) to £2,160 (ESBP Specialists Ltd based in M26).
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 M27 by posting a job with HaMuch and we will send it to extension builders in M27.
"Install an RSJ" - M27, job posted 09/02/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Swinton | £32 | £234 |
| Install An RSJ near Eccles | £32 | £236 |
| Install An RSJ near Salford | £32 | £237 |
| Install An RSJ near Prestwich | £31 | £233 |
| Install An RSJ near Whitefield | £31 | £229 |
| Install An RSJ near Radcliffe | £30 | £220 |
| Install An RSJ near Farnworth | £30 | £219 |
| Install An RSJ near Little Hulton | £31 | £220 |
| Install An RSJ near Urmston | £32 | £231 |
| Install An RSJ near Manchester | £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 - £17,252

Two storey extension - £87,628

Build a timber frame extension - £25,752

Build a swimming pool - £80,752

Single storey extension - £50,040

Side return extension - £38,710

Install an RSJ - £1,952

Outbuilding - £9,752

Build a Mansard loft conversion - £51,752

Loft conversion - £31,425

Build a kitchen extension - £41,752

Hip to gable loft conversion - £41,752

Granny annexe - £86,752

Garden office - £9,752

Convert a Garage - £15,752

Garage - £18,252

Build a flat roof extension - £21,752

Build a dormer loft conversion - £41,752

Concrete foundations - £6,002

Convert a bungalow loft - £28,752

Convert a basement - £34,710