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 £2,328

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Trevillion Property Services Ltd

Stephen Trevillion

Member since October 2026

Location

Plymouth, PL6

Minor and major building works

From £1,912

Last active Oct 26
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PLATINUM CONSTRUCTION

Gary Ede

Location

Plymouth, PL7

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

PLATINUM CONSTRUCTION provides a local, trusted extensio...

From £1,912

Last active Oct 26
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Kiwi Construction

Patrick Rule

Location

Plymouth, PL5

Trading since 1997 kitchens,bathrooms lofts patios roof work and much more

From £1,680

Last active Sep 26
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Donovan Construction

Matthew Donovan

Location

Plymouth, PL6

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

Donovan Construction provides a local, trusted extensio...

From £2,624

Last active Sep 26
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JAVA CONSTRUCTION LTD

Luis Escrig

Location

Plymouth, PL7

Java construction 

provide a complete building service and design

we also provide building maitanance 

w...

From £1,968

Last active Sep 26
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NCN Building & Maintenance Ltd

Location

Plymouth, PL2

Need an Extension Builder in Plymouth? NCN Building & Maintenance Ltd has been helping local clients (20 mile radius) with their extension builderi...

From £2,216

Last active Aug 26
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Bob Jones Installations

Rob Jones

Location

Plymouth, PL1

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

From £2,312

Last active Jul 26
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GD ANDREW BUILDING CONTRACTORS

Relax... you have found a reliable extension builder in Plymouth. GD ANDREW BUILDING CONTRACTORS is a friendly and reliable company based in Plymou...

From £2,080

Last active Jul 26
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M D C Building Services

Location

Plymouth, PL3

Relax... you have found a reliable extension builder in Plymouth. M D C Building Services is a friendly and reliable company based in Plymouth who ...

From £1,864

Last active Mar 26
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MJR Construction SW Ltd

Location

Plymouth, PL6

Relax... you have found a reliable extension builder in Plymouth. MJR Construction SW Ltd is a friendly and reliable company based in Plymouth who ...

RSJ cost in Plymouth

Estimates for install an rsj near Plymouth

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Plymouth it ranges from £1,680 (Donovan Construction based in PL6) to £2,624 (JAVA CONSTRUCTION LTD based in PL7).

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

"RSJ installation" - PLYMOUTH, job posted 01/01/70


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Plymouth£30£230
Install An RSJ near Paignton£27£222
Install An RSJ near Newton Abbot£27£236
Install An RSJ near Teignbridge£27£260
Install An RSJ near Torbay£27£223
Install An RSJ near Torquay£28£223
Install An RSJ near St Austell£38£245
Install An RSJ near Exeter£27£221

Estimates for common extension builder jobs in Plymouth;

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...