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 £2,712

Rates verified Oct 26
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Mandala Building Services

Mandala Building Services is a family-owned design and build maintenance company, encompassing everything from residential refurbishment to large-s...

From £2,280

Last active Nov 26
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ANGLE BUILDERS

ANGLE BUILDERS is an established and experienced local extension builder in Potters Bar. Please contact us for a free, no obligation quote and comp...

From £2,392

Last active Nov 26
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SJ Expert Building Services

SJ Expert Building Services are here to help customers who need an Extension Builder in Potters Bar. We offer a competitive rate to complete all yo...

From £2,760

Last active Oct 26
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Rafix Building

Rafal Szczepanski

Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...

From £2,544

Last active Oct 26
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Roberts & Co

Roberts & Co is a family run business est.2009. We specialize in Kitchen extensions and Loft conversions, and cover Hertfordshire, Essex and Greate...

From £2,640

Last active Oct 26
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COMPLETE CIVIL ENGINEERING

Ciaran Feeney

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

COMPLETE CIVIL ENGINEERING provides a local, trusted ext...

From £1,728

Last active Oct 26
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Bellator Construction Ltd

Dimitar Vakavliev

We are reliable tradesmen delivering quality works with attention to detail 

From £2,576

Last active Oct 26
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WT Construction Service Ltd

Need the extension buildering job done quickly without breaking the bank? WT Construction Service Ltd offer fast, reliable, and affordable extensio...

From £2,144

Last active Oct 26
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New Finishes

New Finishes is a trusted extension builder serving customers in Potters Bar and the surrounding area. Contact us to today to get a competitive quo...

From £2,576

Last active Oct 26
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Pavillion Building Services

Relax... you have found a reliable extension builder in Potters Bar. Pavillion Building Services is a friendly and reliable company based in Potter...

RSJ cost in Potters Bar

Estimates for install an rsj near Potters Bar

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Potters Bar it ranges from £1,728 (Bellator Construction Ltd based in N11) to £2,760 (Rafix Building based in EN4).

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


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Estimates for common extension builder jobs in Potters Bar;

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...