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 £2,248

Last active Nov 26
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NWL Renovations Ltd

Patrick Gavin

Need an Extension Builder in Marleybone? NWL Renovations Ltd has been helping local clients (5 mile radius) with their extension buildering jobs f...

From £2,176

Last active Nov 26
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SLS BUILDERS LIMITED

SLS BUILDERS LIMITED is a trusted extension builder serving customers in Marleybone and the surrounding area. Contact us to today to get a competit...

From £2,128

Last active Nov 26
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BPS Building

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

From £2,560

Last active Oct 26
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M & A UK Ltd

Relax... you have found a reliable extension builder in Marleybone. M & A UK Ltd is a friendly and reliable company based in Marleybone who conside...

From £2,368

Last active Oct 26
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Newpark Construction

Newpark Construction are here to help customers who need an Extension Builder in Marleybone. We offer a competitive rate to complete all your exten...

From £4,520

Last active Oct 26
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Reid and Co Developments Ltd

Jay Reid

We are a well established buildng firm who have been providing building services and managing of projects now for 25 years. We have all the necessary ...

From £2,384

Last active Sep 26
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First guard Roofing

Darren Bergin

Relax... you have found a reliable extension builder in Marleybone. First guard Roofing is a friendly and reliable company based in Marleybone who ...

From £2,576

Last active Sep 26
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CK Constructions & Development Ltd

CK Constructions & Development Ltd is a trusted extension builder serving customers in Marleybone and the surrounding area. Contact us to today to ...

From £2,176

Last active Sep 26
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A to Z Builders Ltd

A to Z Builders Ltd are here to help customers who need an Extension Builder in Marleybone. We offer a competitive rate to complete all your extens...

From £2,184

Last active Sep 26
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JK Doors

JK Doors is a trusted extension builder serving customers in Marleybone and the surrounding area. Contact us to today to get a competitive quote fo...

RSJ cost in Marleybone

Estimates for install an rsj near Marleybone

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Marleybone it ranges from £2,128 (BPS Building based in NW6) to £4,520 (Reid and Co Developments Ltd based in NW8).

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


Estimates for common extension builder jobs in Marleybone;

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...