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. 

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Install an RSJ cost in L9

KM Building Services

From £1,968

Relax... you have found a reliable extension builder in L9. KM Building Services is a friendly and reliable company based in L9 who consider no job...

Bob the Builder

From £2,104

Need an Extension Builder in L9? Bob the Builder has been helping local clients (20 mile radius) with their extension buildering jobs for many year...

P & P Building Services

From £2,136

Experienced extension builder ready to quote for your work. P & P Building Services is the best extension builder in L9. No obligation free quotes ...

CJ Construction

From £1,960

CJ Construction are here to help customers who need an Extension Builder in L9. We offer a competitive rate to complete all your extension builderi...

Red Avex Ltd

From £2,224

Red Avex Ltd are here to help customers who need an Extension Builder in L9. We offer a competitive rate to complete all your extension buildering ...

Jones Landscaping

From £1,672

Trusted and professional extension builder in L9. Experienced in all extension buildering work and keeping within budget and on quote. Jones Landsc...

Liverpool Builder

From £1,752

Liverpool Builder is an established extension buildering business in L9. We come highly recommended and provide competitive quotes for your work.

J.M.C Building Services

From £1,872

J.M.C Building Services is a trusted extension builder serving customers in L9 and the surrounding area. Contact us to today to get a competitive q...

Sbetts Building

From £2,080

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

Sbetts Building provides a local, trusted extension buil...

McBuild

From £2,000

McBuild is a trusted extension builder serving customers in L9 and the surrounding area. Contact us to today to get a competitive quote for extensi...

RSJ cost in L9

Estimates for install an rsj near L9

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in L9 it ranges from £1,672 (Jones Landscaping based in L30) to £2,224 (Red Avex Ltd based in L10).

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 L9 by posting a job with HaMuch and we will send it to extension builders in L9.

"RSJ installation" - LIVERPOOL, job posted 04/09/25


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Bootle£32£223
Install An RSJ near Kirkby£31£222
Install An RSJ near Crosby£34£223
Install An RSJ near Maghull£33£219
Install An RSJ near Liverpool£31£222
Install An RSJ near Sefton£34£221
Install An RSJ near Wallasey£33£224
Install An RSJ near Knowsley£31£221
Install An RSJ near Birkenhead£31£219
Install An RSJ near Prescot£31£222

Estimates for common extension builder jobs in L9;

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...