Cost to fit an RSJ in Brentford

Install an RSJ cost in Brentford

RSJ cost in Brentford

Estimates for install an rsj near Brentford

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Brentford it ranges from £2,104 (Elite Construction London Ltd based in TW8) to £2,688 (Buildup London Limited based in TW8).

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

"UC beam install 2.5m only (calculations done, building control notification done, no pretty boxing etc.)" - TW8, job posted 03/09/26

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Estimates for common extension builder jobs in Brentford;

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.