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. 

Need help with a job?

Or call 02046521400
HaMuch is Excellent

Install an RSJ cost in Shankill Road

SM Plumbing & Heating

From £1,568

Relax... you have found a reliable extension builder in Shankill Road. SM Plumbing & Heating is a friendly and reliable company based in Shankill R...

Extended living by Gilbert-Ash

From £1,376

Trusted and professional extension builder in Shankill Road. Experienced in all extension buildering work and keeping within budget and on quote. E...

Designco Ltd

From £1,584

Designco Ltd is an established extension buildering business in Shankill Road. We come highly recommended and provide competitive quotes for your w...

Belfast Loft Company

From £1,536

Trusted and professional extension builder in Shankill Road. Experienced in all extension buildering work and keeping within budget and on quote. B...

LM Design & Build

From £1,576

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Ballantine building solutions

From £1,496

Ballantine building solutions is an established extension buildering business in Shankill Road. We come highly recommended and provide competitive ...

DGA

From £1,464

Trusted and professional extension builder in Shankill Road. Experienced in all extension buildering work and keeping within budget and on quote. D...

Finch Construction NI

From £1,584

Relax... you have found a reliable extension builder in Shankill Road. Finch Construction NI is a friendly and reliable company based in Shankill R...

Mount Oriel Conversions & Extensions

From £1,336

Need to find an Extension Builder near you for all your extension buildering work?

Mount Oriel Conversions & Extensions provides a local, t...

RSJ cost in Shankill Road

Estimates for install an rsj near Shankill Road

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Shankill Road it ranges from £1,336 (Mount Oriel Conversions & Extensions based in BT8) to £1,688 (AK Building Services based in BT8).

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

"RSJ installation" - BELFAST, job posted 09/08/25


Get extension builder rates instantly

Estimates for common extension builder jobs in Shankill Road;

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.

More extensions & conversions cost guides...