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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Available extension builders in Southend-on-sea reply

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From £2,208

Last active Nov 26
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Thoroughbuild UK Services Ltd

Frederick Head

Over 35 years experience 

We are Gas Safe registered 

We are Verified

We pride ourselves on great custom...

From £2,328

Last active Oct 26
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GAB Design

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

From £1,920

Last active Sep 26
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JLS Building Services

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

JLS Building Services provides a local, trusted extensio...

From £2,152

Last active Aug 26
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CONCORD BUILDERS LIMITED

Need an Extension Builder in Southend-on-sea? CONCORD BUILDERS LIMITED has been helping local clients (20 mile radius) with their extension builder...

From £2,416

Last active Jul 26
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Fox Conversions Limited

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

From £2,264

Last active Jun 26
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HIGHLAND CONSTRUCTION

Experienced extension builder ready to quote for your work. HIGHLAND CONSTRUCTION is the best extension builder in Southend-on-sea. No obligation f...

From £3,528

Last active Jun 26
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City build.com

Joe Copperthwaite

Trusted and professional extension builder in Southend-on-sea. Experienced in all extension buildering work and keeping within budget and on quote....

From £2,128

Last active Jun 26
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RAYBRIDGE TOTAL CONSTRUCTION

Need an Extension Builder in Southend-on-sea? RAYBRIDGE TOTAL CONSTRUCTION has been helping local clients (20 mile radius) with their extension bui...

From £2,176

Last active May 26
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Anglian Preservation

Anglian Preservation is an established and experienced local extension builder in Southend-on-sea. Please contact us for a free, no obligation quot...

From £2,216

Last active Apr 26
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SMH Property Services Ltd

SMH Property Services Ltd are here to help customers who need an Extension Builder in Southend-on-sea. We offer a competitive rate to complete all ...

RSJ cost in Southend-on-sea

Estimates for install an rsj near Southend-on-sea

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Southend-on-sea it ranges from £1,920 (JLS Building Services based in SS1) to £3,528 (City build.com based in Ss5).

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 Southend-on-sea by posting a job with HaMuch and we will send it to extension builders in Southend-on-sea.


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Estimates for common extension builder jobs in Southend-on-sea;

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...