Cost to fit an RSJ in M25

Install an RSJ cost in M25 - Sort by rates or availability

RSJ cost in M25

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in M25 it ranges from £1,160 (Aquatec Builder based in OL10) to £2,208 (Ethos Property Developments Limited based in SK15).

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 M25 by posting a job with HaMuch and we will send it to extension builders in M25.

"Install an RSJ" - M27, job posted 09/02/26

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Install An RSJ near Prestwich	£31	£233
Install An RSJ near Whitefield	£31	£229
Install An RSJ near Swinton	£32	£234
Install An RSJ near Salford	£32	£237
Install An RSJ near Radcliffe	£30	£220
Install An RSJ near Manchester	£32	£236
Install An RSJ near Middleton	£31	£227
Install An RSJ near Eccles	£32	£236
Install An RSJ near Bury	£30	£219
Install An RSJ near Heywood	£30	£221

Estimates for common extension builder jobs in M25;

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.