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 £2,256

Last active Oct 26
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AJ Solutions

AJ Solutions is an established extension buildering business in Flintshire. We come highly recommended and provide competitive quotes for your work...

From £1,848

Last active Sep 26
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P WALKER JOINERY & BUILDING

Need an Extension Builder in Flintshire? P WALKER JOINERY & BUILDING has been helping local clients (20 mile radius) with their extension builderin...

From £2,248

Last active May 26
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Guest & Roberts

Experienced extension builder ready to quote for your work. Guest & Roberts is the best extension builder in Flintshire. No obligation free quotes ...

From £2,096

Last active Apr 26
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L & J BUILDERS

Relax... you have found a reliable extension builder in Flintshire. L & J BUILDERS is a friendly and reliable company based in Flintshire who consi...

From £2,784

Last active Apr 26
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David Williams General Builder & Maintenance

Relax... you have found a reliable extension builder in Flintshire. David Williams General Builder & Maintenance is a friendly and reliable company...

From £2,128

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K C MASSEY CONSTRUCTION LTD

Trusted and professional extension builder in Flintshire. Experienced in all extension buildering work and keeping within budget and on quote. K C ...

From £2,072

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A M F BUILDING SERVICES

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

A M F BUILDING SERVICES provides a local, trusted extens...

From £1,864

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K Phillips Building & Maintenance

Location

Flintshire, CH5

Relax... you have found a reliable extension builder in Flintshire. K Phillips Building & Maintenance is a friendly and reliable company based in F...

From £2,216

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READ CONSTRUCTION HOLDINGS LTD

Experienced extension builder ready to quote for your work. READ CONSTRUCTION HOLDINGS LTD is the best extension builder in Flintshire. No obligati...

From £2,024

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P M Harris Roofing and Joinery Services

P M Harris Roofing and Joinery Services is an established extension buildering business in Flintshire. We come highly recommended and provide compe...

RSJ cost in Flintshire

Estimates for install an rsj near Flintshire

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Flintshire it ranges from £1,848 (P WALKER JOINERY & BUILDING based in CH5) to £2,784 (David Williams General Builder & Maintenance based in LL11).

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


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Estimates for common extension builder jobs in Flintshire;

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...