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 £1,600

Rates updated Nov 26
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D.r.m.brickwork

David Mather

Small brickwork jobs welcome.garden wall's and pointing as well.any type of walls built.

From £4,600

Rates updated Oct 26
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DJ Brooks Construction

Experienced extension builder ready to quote for your work. DJ Brooks Construction is the best extension builder in Northern Quarter. No obligation...

From £1,160

Last active Nov 26
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Aquatec Builder

Paul Foran

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

From £2,208

Last active Nov 26
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Ethos Property Developments Limited

Ethos Property Developments Limited is an established extension buildering business in Northern Quarter. We come highly recommended and provide com...

From £1,952

Last active Nov 26
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Prowess Joinery & Building Ltd

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

From £1,960

Last active Nov 26
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Unique Building Services & Consultancy

Shehele

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

From £1,808

Last active Nov 26
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MK Builders

Need an Extension Builder in Northern Quarter? MK Builders has been helping local clients (20 mile radius) with their extension buildering jobs for...

From £1,384

Last active Nov 26
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Valdecor

Titus Pinzariu

20 years experience. 

Great recommendations. 

From £2,048

Last active Nov 26
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We Build

Trusted and professional extension builder in Northern Quarter. Experienced in all extension buildering work and keeping within budget and on quote...

From £1,832

Last active Nov 26
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Fit-on Garage Doors

Trusted and professional extension builder in Northern Quarter. Experienced in all extension buildering work and keeping within budget and on quote...

RSJ cost in Northern Quarter

Estimates for install an rsj near Northern Quarter

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Northern Quarter it ranges from £1,160 (Aquatec Builder based in OL10) to £4,600 (DJ Brooks Construction based in WA14).

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

"RSJ installation replacing a badly installed RSJ that supports a wall between the old kitchen and rear lounge. The original builder installed the incorrect weight (not heavy enough) and then proceeded to put a suppirt bar underneath by welding. The weld buckled the beam and this is how its been..." - SK4, job posted 01/01/70

"Install an RSJ" - M27, job posted 09/02/26


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Manchester£32£236
Install An RSJ near Old Trafford£32£236
Install An RSJ near Salford£32£237
Install An RSJ near Droylsden£34£237
Install An RSJ near Failsworth£35£236
Install An RSJ near Prestwich£31£233
Install An RSJ near Stretford£32£239
Install An RSJ near Reddish£34£235
Install An RSJ near Middleton£31£227
Install An RSJ near Swinton£32£234

Estimates for common extension builder jobs in Northern Quarter;

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...