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 £2,200

Last active Nov 26
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NA Brickwork

Experienced extension builder ready to quote for your work. NA Brickwork is the best extension builder in Dartford. No obligation free quotes and m...

From £2,312

Last active Nov 26
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Master Builders

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

Master Builders provides a local, trusted extension buil...

From £2,168

Last active Nov 26
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UNIVERSAL CONSTRUCTION

Relax... you have found a reliable extension builder in Dartford. UNIVERSAL CONSTRUCTION is a friendly and reliable company based in Dartford who c...

From £2,416

Last active Nov 26
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POVERSET BUILDING COMPANY

Curtis Archer

Relax... you have found a reliable extension builder in Dartford. POVERSET BUILDING COMPANY is a friendly and reliable company based in Dartford wh...

From £2,528

Last active Nov 26
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Tony Rutter

Need an Extension Builder in Dartford? Tony Rutter has been helping local clients (10 mile radius) with their extension buildering jobs for many ye...

From £2,368

Last active Nov 26
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Sevcan Construction

Relax... you have found a reliable extension builder in Dartford. Sevcan Construction is a friendly and reliable company based in Dartford who cons...

From £2,472

Last active Nov 26
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Kunshi Services UK Ltd

Kunshi Services UK Ltd is a trusted extension builder serving customers in Dartford and the surrounding area. Contact us to today to get a competit...

From £2,552

Last active Oct 26
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R Tredget & Son

R Tredget & Son are here to help customers who need an Extension Builder in Dartford. We offer a competitive rate to complete all your extension bu...

From £2,816

Last active Oct 26
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HOUSE BUILDING SERVICES LIMITED

Tommy House

HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in Dartford and the surrounding area. Contact us to today to get a...

From £2,568

Last active Oct 26
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MONOLITH CONSTRUCTION LTD

Need an Extension Builder in Dartford? MONOLITH CONSTRUCTION LTD has been helping local clients (10 mile radius) with their extension buildering jo...

RSJ cost in Dartford

Estimates for install an rsj near Dartford

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Dartford it ranges from £2,168 (UNIVERSAL CONSTRUCTION based in BR8) to £2,816 (HOUSE BUILDING SERVICES LIMITED based in DA16).

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


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Dartford£41£265
Install An RSJ near Bexley£42£265
Install An RSJ near South Ockendon£42£264
Install An RSJ near Grays£41£261
Install An RSJ near Northfleet£41£261
Install An RSJ near Chafford Hundred£41£261
Install An RSJ near Thurrock£41£260
Install An RSJ near Gravesend£40£260
Install An RSJ near Barking£43£261
Install An RSJ near Bromley£43£268

Estimates for common extension builder jobs in Dartford;

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...