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. 

Install an RSJ cost in Seaton Sluice - Sort by rates or availability

Key Building Solutions

From £2,680

(rates verified 04/09/26)

On time/ professional/ time served/trustworthy

Radici Construction North East Ltd

From £3,112

(last active 02/10/26)

Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...

RAINTON CONSTRUCTION LTD

From £2,304

(last active 01/10/26)

RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in Seaton Sluice. Please contact us for a free, no obligation qu...

ANDREW HUNTER BUILDING SERVICES

From £2,008

(last active 30/09/26)

ANDREW HUNTER BUILDING SERVICES is an established and experienced local extension builder in Seaton Sluice. Please contact us for a free, no obliga...

OCC Construction

From £1,240

Member since July 2020

I have over 40 years experience in the field of construction. Thank you and I hope I will be of service to you.

DGS Property Services

From £1,984

(last active 25/09/26)

Trusted and professional extension builder in Seaton Sluice. Experienced in all extension buildering work and keeping within budget and on quote. D...

Arrowhead Construction

From £2,680

(last active 25/09/26)

Arrowhead Construction is a trusted extension builder serving customers in Seaton Sluice and the surrounding area. Contact us to today to get a com...

L & H Cleaning Ltd

From £2,192

(last active 24/09/26)

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

Building Craft Ltd

From £2,136

(last active 16/09/26)

Building Craft Ltd is an established extension buildering business in Seaton Sluice. We come highly recommended and provide competitive quotes for ...

COUSINS BUILDG & RFING SRV LTD

From £2,184

(last active 16/09/26)

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

RSJ cost in Seaton Sluice

Estimates for install an rsj near Seaton Sluice

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Seaton Sluice it ranges from £1,240 (OCC Construction based in NE10) to £3,112 (Radici Construction North East Ltd based in DH1).

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


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Whitley Bay£38£268
Install An RSJ near Tynemouth£36£257
Install An RSJ near North Tyneside£35£253
Install An RSJ near Wallsend£34£245
Install An RSJ near South Shields£36£257
Install An RSJ near Cramlington£36£256
Install An RSJ near Blyth£42£288
Install An RSJ near Jarrow£34£262
Install An RSJ near Longbenton£34£234
Install An RSJ near Hebburn£34£246

Estimates for common extension builder jobs in Seaton Sluice;

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...