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 DL7 reply

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From £1,920

Last active Aug 26
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S & K Windows

S & K Windows are here to help customers who need an Extension Builder in DL7. We offer a competitive rate to complete all your extension builderin...

From £2,072

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Darren Collin Joinery

Darren Collin

Hi I'm darren 

I'm a fully qualified time served joiner I have been doing it for 30 years and have been self employed for 12 years ...

RSJ cost in DL7

Estimates for install an rsj near DL7

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in DL7 it ranges from £1,920 (S & K Windows based in DL6) to £2,072 (Darren Collin Joinery based in DL7).

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 DL7 by posting a job with HaMuch and we will send it to extension builders in DL7.


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Estimates for common extension builder jobs in DL7;

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...