Find a builder to make your building structurally sound

RSJs support your new extension or other construction to ensure that your property is structurally sound. They are crucial parts of your building work that mustn't be ignored, and must be installed by a professional. 

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Install an RSJ cost in Harlech

WJ Builders

From £1,632

WJ Builders is an established and experienced local extension builder in Harlech. Please contact us for a free, no obligation quote and competitive...

Building & Flat Roofing Contractors

From £1,456

Building & Flat Roofing Contractors is a trusted extension builder serving customers in Harlech and the surrounding area. Contact us to today to ge...

RSJ cost in Harlech

Estimates for install an rsj near Harlech

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Harlech it ranges from £1,456 (Building & Flat Roofing Contractors based in LL54) to £1,632 (WJ Builders based in LL53).

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


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Conwy£28£211
Install An RSJ near Conway£28£211
Install An RSJ near Colwyn Bay£28£211

Estimates for common extension builder jobs in Harlech;

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.

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