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 £2,520

Last active Nov 26
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Greystone Roofing & Building

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

From £2,136

Last active Oct 26
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Bacan's cleaning painting and decorating

Elena nuta Radu

Plumbing, painting exterior, interior, extensions, plastering, skiming, carpeting, Flooring, you can ask us ..

From £2,544

Last active Oct 26
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Greg-Bud

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

Greg-Bud provides a local, trusted extension buildering ...

From £2,472

Last active Oct 26
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Top Notch Tradesmen

Top Notch Tradesmen is an established and experienced local extension builder in LU3. Please contact us for a free, no obligation quote and competi...

From £2,656

Last active Oct 26
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A.J Builders

A.J Builders is an established and experienced local extension builder in LU3. Please contact us for a free, no obligation quote and competitive ra...

From £2,216

Last active Oct 26
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FULLERS BUILDING SERVICES

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

From £2,296

Last active Jul 26
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G&D Builders Ltd

We use only the highest quality products, and you can rest assured knowing that we are fully certified and registered with the relevant authorities...

From £2,200

Last active Apr 26
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S Sherazi Home Improvement Service

S Sherazi Home Improvement Service are here to help customers who need an Extension Builder in LU3. We offer a competitive rate to complete all you...

From £5,152

Last active Mar 26
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A & D Maintenance Services Ltd

Melvyn Dallimore

Painting & Decorating including property maintenance Building  services honest trustworthy fully qualified decorators established 35 years.We cove...

From £2,192

Last active Dec 25
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ARC Building Services

Abbas Shah

ARC Building Services is a trusted extension builder serving customers in LU3 and the surrounding area. Contact us to today to get a competitive q...

RSJ cost in LU3

Estimates for install an rsj near LU3

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in LU3 it ranges from £2,136 (Bacan's cleaning painting and decorating based in LU1) to £5,152 ( A & D Maintenance Services Ltd based in LU2).

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 LU3 by posting a job with HaMuch and we will send it to extension builders in LU3.


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Estimates for common extension builder jobs in LU3;

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...