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 £1,848

Last active Jun 26
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Progress Construction

Andy Davies

Location

Nantwich, CW5

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

From £1,968

Last active Jun 26
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House Heroes

Location

Nantwich, CW5

Relax... you have found a reliable extension builder in Nantwich. House Heroes is a friendly and reliable company based in Nantwich who consider no...

From £2,248

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Rik Seaton (Brickwork Specialist)

Rik Seaton (Brickwork Specialist) is an established and experienced local extension builder in Nantwich. Please contact us for a free, no obligatio...

From £2,104

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Hough Construction

Relax... you have found a reliable extension builder in Nantwich. Hough Construction is a friendly and reliable company based in Nantwich who consi...

From £1,416

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AJM Building

Anthony Mcconnell

Relax... you have found a reliable extension builder in Nantwich. AJM Building is a friendly and reliable company based in Nantwich who consider no...

RSJ cost in Nantwich

Estimates for install an rsj near Nantwich

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Nantwich it ranges from £1,416 (AJM Building based in CW2) to £2,248 (Rik Seaton (Brickwork Specialist) based in CW1).

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

"RSJ corrosion repair quote" - CREWE, job posted 07/08/25


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Estimates for common extension builder jobs in Nantwich;

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...