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 £2,384

Last active Nov 26
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QA's Pointing and Brick Repair

QA's Pointing Brick Repair

Relax... you have found a reliable extension builder in SW3. QA's Pointing and Brick Repair is a friendly and reliable company based in SW3 who con...

From £2,560

Last active Oct 26
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M & A UK Ltd

Relax... you have found a reliable extension builder in SW3. M & A UK Ltd is a friendly and reliable company based in SW3 who consider no job as to...

From £2,520

Last active Sep 26
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D & G Building & Decorating

Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in SW3. No obligation free qu...

From £2,648

Last active Sep 26
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London Construction

London Construction is an established and experienced local extension builder in SW3. Please contact us for a free, no obligation quote and competi...

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 SW3. We offer a competitive rate to complete all your extension bui...

From £2,456

Last active Aug 26
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F & F Building Services

F & F Building Services is an established extension buildering business in SW3. We come highly recommended and provide competitive quotes for your ...

From £2,280

Last active Jun 26
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Battersea Plumbers

kanreen

Need an Extension Builder in SW3? Battersea Plumbers has been helping local clients (5 mile radius) with their extension buildering jobs for many y...

From £2,800

Last active Apr 26
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H G Builders

H G Builders is an established and experienced local extension builder in SW3. Please contact us for a free, no obligation quote and competitive ra...

From £2,512

Last active Mar 26
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Phormwork

Phormwork are here to help customers who need an Extension Builder in SW3. We offer a competitive rate to complete all your extension buildering jo...

From £2,160

Last active Mar 26
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Pure Contractors Ltd

In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...

RSJ cost in SW3

Estimates for install an rsj near SW3

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SW3 it ranges from £2,160 (Pure Contractors Ltd based in SW11) to £2,800 (H G Builders based in SW6).

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 SW3 by posting a job with HaMuch and we will send it to extension builders in SW3.


Estimates for common extension builder jobs in SW3;

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...