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 £2,064

Last active Oct 26
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Advance Construction Solutions

Location

Hertfordshi, EN6

Trusted and professional extension builder in EN6. Experienced in all extension buildering work and keeping within budget and on quote. Advance Con...

From £2,464

Last active Oct 26
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London Elite Construction

London Elite Construction is an established extension buildering business in EN6. We come highly recommended and provide competitive quotes for you...

From £2,528

Last active Oct 26
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BSL

Location

Potters Bar, EN6

BSL are here to help customers who need an Extension Builder in EN6. We offer a competitive rate to complete all your extension buildering jobs to ...

From £2,312

Last active Oct 26
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SWB Construction Services

Trusted and professional extension builder in EN6. Experienced in all extension buildering work and keeping within budget and on quote. SWB Constru...

From £2,680

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Premium Design Construction LTD

Location

London, EN6

Premium Design Construction Ltd. specialise in home remodelling and refurbishments from start to finish. Extensions, Loft conversion, bespoke carp...

From £2,456

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JMB Design & Build

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

JMB Design & Build provides a local, trusted extension b...

From £2,280

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JMB Design & Build

Location

Potters Bar, EN6

JMB Design & Build is a full service building construction company dedicated to building and improving residential and commercial structures accord...

From £2,096

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TMP build solutions ltd

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

TMP build solutions ltd provides a local, trusted extens...

From £2,200

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TMP build solutions ltd

Location

Hertfordshire, EN6

TMP Build Solutions is a reputable building company that specialises in loft conversions and extensions. The team has a diverse range of trade skil...

From £2,104

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Defined Builds

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

RSJ cost in EN6

Estimates for install an rsj near EN6

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in EN6 it ranges from £2,064 (Advance Construction Solutions based in EN6) to £2,680 (Premium Design Construction LTD based in EN6).

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 EN6 by posting a job with HaMuch and we will send it to extension builders in EN6.


Estimates for common extension builder jobs in EN6;

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...