Cost to fit an RSJ in Kew

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

RSJ cost in Kew

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Kew it ranges from £2,096 (Tota Builders based in TW2) to £2,704 (Ferdas Design & Build Ltd based in W3).

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

"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 Kew;

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.