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 £3,784

Last active Nov 26
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Propello

Ali Alagoz

Propello is an established and experienced local extension builder in N17. Please contact us for a free, no obligation quote and competitive rates...

From £2,136

Last active Oct 26
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2nwest Builders and Decorators Ltd

Relax... you have found a reliable extension builder in N17. 2nwest Builders and Decorators Ltd is a friendly and reliable company based in N17 who...

From £2,272

Last active Oct 26
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J&H Builder

J&H Builder is a trusted extension builder serving customers in N17 and the surrounding area. Contact us to today to get a competitive quote for ex...

From £2,120

Last active Oct 26
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MEGABUILD LTD

MEGABUILD LTD is a trusted extension builder serving customers in N17 and the surrounding area. Contact us to today to get a competitive quote for ...

From £2,368

Last active Oct 26
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Best Builders

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

From £2,328

Last active Aug 26
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GG CONSTRUCTION LTD

GG CONSTRUCTION LTD is a trusted extension builder serving customers in N17 and the surrounding area. Contact us to today to get a competitive quot...

From £2,232

Last active Aug 26
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A K Decoration & Building Serv

Need an Extension Builder in N17? A K Decoration & Building Serv has been helping local clients (5 mile radius) with their extension buildering job...

From £1,800

Last active Mar 26
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ADD CONSTRUCTION (LONDON) LTD

Dan Boris

All building works for all your buildings needs 

From £2,280

Last active Feb 26
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Fine Loft Construction

Fine Loft Construction are here to help customers who need an Extension Builder in N17. We offer a competitive rate to complete all your extension ...

From £2,456

Last active Feb 26
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KJV CONSTRUCTION LTD

KJV CONSTRUCTION LTD is an established and experienced local extension builder in N17. Please contact us for a free, no obligation quote and compet...

RSJ cost in N17

Estimates for install an rsj near N17

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in N17 it ranges from £1,800 (ADD CONSTRUCTION (LONDON) LTD based in N15) to £3,784 (Propello based in E17).

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 N17 by posting a job with HaMuch and we will send it to extension builders in N17.


Estimates for common extension builder jobs in N17;

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...