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 CO10 - Sort by rates or availability

From £2,200

(last active 22/02/26)
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Premier Building

Relax... you have found a reliable extension builder in CO10. Premier Building is a friendly and reliable company based in CO10 who consider no job...

From £2,008

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We Love Property

Trusted and professional extension builder in CO10. Experienced in all extension buildering work and keeping within budget and on quote. We Love Pr...

From £1,896

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Cooper and Kelling Builders

Relax... you have found a reliable extension builder in CO10. Cooper and Kelling Builders is a friendly and reliable company based in CO10 who cons...

RSJ cost in CO10

Estimates for install an rsj near CO10

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CO10 it ranges from £1,896 (Cooper and Kelling Builders based in CO10) to £2,200 (Premier Building based in CO10).

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 CO10 by posting a job with HaMuch and we will send it to extension builders in CO10.


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Sudbury£34£229
Install An RSJ near Haverhill£37£260
Install An RSJ near Colchester£34£232
Install An RSJ near Bury St Edmunds£34£251
Install An RSJ near Braintree£37£247
Install An RSJ near Stowmarket£30£221
Install An RSJ near Witham£36£240
Install An RSJ near Ipswich£33£235
Install An RSJ near Tendring£31£226
Install An RSJ near Maldon£36£244

Estimates for common extension builder jobs in CO10;

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...