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.  To see prices and availability for your job click green button.

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From £2,192

Last active Nov 26
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J.T.Construction

J.T.Construction is a trusted extension builder serving customers in WA5 and the surrounding area. Contact us to today to get a competitive quote f...

From £1,872

Last active Nov 26
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Fixit Cheshire

Fixit Cheshire is an established and experienced local extension builder in WA5. Please contact us for a free, no obligation quote and competitive ...

From £1,920

Last active Nov 26
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JOHN ROSS BUILDERS LTD

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

JOHN ROSS BUILDERS LTD provides a local, trusted extensi...

From £2,024

Last active Nov 26
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Warrington Builders

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

From £2,152

Last active Jul 26
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National Plumbing and Heating

Get an Extension Builder in WA5 who you can trust. National Plumbing and Heating provide friendly and reliable extension buildering services to the...

From £1,848

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HPH Improvment&Building

Trusted and professional extension builder in WA5. Experienced in all extension buildering work and keeping within budget and on quote. HPH Improvm...

From £1,896

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Space Design & Build

Welcome to Space Design & Build a building company based in Warrington.With nearly 40 years combined experience in the industry Space Design & Buil...

From £1,984

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DT ANDERSON CONSTRUCTION LTD

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

DT ANDERSON CONSTRUCTION LTD provides a local, trusted e...

From £1,864

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I Wright Building & Joinery

Trusted and professional extension builder in WA5. Experienced in all extension buildering work and keeping within budget and on quote. I Wright Bu...

From £1,976

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RP Construction Design

RP Construction Design is an established extension buildering business in WA5. We come highly recommended and provide competitive quotes for your w...

RSJ cost in WA5

Estimates for install an rsj near WA5

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in WA5 it ranges from £1,848 (HPH Improvment&Building based in WA2) to £2,192 (J.T.Construction based in WA5).

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 WA5 by posting a job with HaMuch and we will send it to extension builders in WA5.


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Estimates for common extension builder jobs in WA5;

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...