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 Get quotes.

HaMuch is Excellent

Install an RSJ cost in CO7 - Sort by rates or availability

From £1,808

(last active 09/10/26)
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JDS Building Services

JDS Building Services is an established extension buildering business in CO7. We come highly recommended and provide competitive quotes for your wo...

From £1,824

(last active 09/10/26)
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T F Builders

T F Builders are here to help customers who need an Extension Builder in CO7. We offer a competitive rate to complete all your extension buildering...

From £1,880

(last active 12/09/26)
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CHAPEL BUILDING SERVICES LTD

Trusted and professional extension builder in CO7. Experienced in all extension buildering work and keeping within budget and on quote. CHAPEL BUIL...

From £2,040

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Open Plan Renovation

Adam

Having been established for over 10 years, we have accumulated a vast amount of local experience in all aspects of domestic renovation projects.We ...

From £1,904

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John O Connell Building Solutions

John O Connell Building Solutions is an established extension buildering business in CO7. We come highly recommended and provide competitive quotes...

RSJ cost in CO7

Estimates for install an rsj near CO7

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CO7 it ranges from £1,808 (JDS Building Services based in CO7) to £2,040 (Open Plan Renovation based in CO4).

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 CO7 by posting a job with HaMuch and we will send it to extension builders in CO7.


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Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Tendring£31£226
Install An RSJ near Colchester£34£232
Install An RSJ near Clacton-on-Sea£31£230
Install An RSJ near Harwich£34£248
Install An RSJ near Ipswich£33£235
Install An RSJ near Felixstowe£31£231
Install An RSJ near Maldon£36£244
Install An RSJ near Witham£36£240
Install An RSJ near Sudbury£34£229
Install An RSJ near Braintree£37£247

Estimates for common extension builder jobs in CO7;

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...