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 £3,224

Last active Sep 26
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KD Construction

Need an Extension Builder in SA14? KD Construction has been helping local clients (20 mile radius) with their extension buildering jobs for many ye...

From £1,760

Last active Sep 26
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NTW BUILDING

NTW BUILDING is an established and experienced local extension builder in SA14. Please contact us for a free, no obligation quote and competitive r...

From £2,280

Last active Aug 26
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Apex Building Services

Andy Power

Worked in building all my working life. 

Worked as a builder 30 plus year's. 

Am a hands on builder. Have built hou...

From £1,944

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L2 Construction Limited

L2 Construction Limited is an established and experienced local extension builder in SA14. Please contact us for a free, no obligation quote and co...

From £2,056

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RTC BUILDERS

RTC BUILDERS is a trusted extension builder serving customers in SA14 and the surrounding area. Contact us to today to get a competitive quote for ...

From £2,048

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Rowan Evans Building Contractors

Rowan Evans Building Contractors is an established extension buildering business in SA14. We come highly recommended and provide competitive quotes...

From £1,800

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HAYDN LEWIS BUILDING SVS LTD

Experienced extension builder ready to quote for your work. HAYDN LEWIS BUILDING SVS LTD is the best extension builder in SA14. No obligation free ...

From £2,104

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Asj Building Services

Relax... you have found a reliable extension builder in SA14. Asj Building Services is a friendly and reliable company based in SA14 who consider n...

From £1,872

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Custom Build Construction

Custom Build Construction are here to help customers who need an Extension Builder in SA14. We offer a competitive rate to complete all your extens...

RSJ cost in SA14

Estimates for install an rsj near SA14

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SA14 it ranges from £1,760 (NTW BUILDING based in SA15) to £3,224 (KD Construction based in SA15).

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 SA14 by posting a job with HaMuch and we will send it to extension builders in SA14.


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Llanelli£29£231
Install An RSJ near Gorseinon£29£228
Install An RSJ near Swansea£29£229
Install An RSJ near Carmarthen£26£205
Install An RSJ near Carmarthenshire£26£205
Install An RSJ near Neath£30£225
Install An RSJ near Neath Port Talbot£31£224
Install An RSJ near Port Talbot£31£227
Install An RSJ near Maesteg£38£283
Install An RSJ near Pyle£34£262

Estimates for common extension builder jobs in SA14;

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...