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. 

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Install an RSJ cost in Hesleden

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Key Building Solutions

From £2,680

(rates verified 04/09/26)

Location

Gateshead, NE9

On time/ professional/ time served/trustworthy

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Radici Construction North East Ltd

From £3,112

(last active 23/09/26)

Location

Durham, DH1

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

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KIETH GRAY ROOFING & BUILDING

From £1,728

(last active 16/09/26)

Location

Hartlepool, TS24

Experienced extension builder ready to quote for your work. KIETH GRAY ROOFING & BUILDING is the best extension builder in Hesleden. No obligation ...

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DHB Builders

From £2,008

(last active 16/09/26)

Location

Shadforth, DH6

Trusted and professional extension builder in Hesleden. Experienced in all extension buildering work and keeping within budget and on quote. DHB Bu...

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COUSINS BUILDG & RFING SRV LTD

From £2,184

(last active 16/09/26)

Location

Sunderland, SR1

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

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Building Craft Ltd

From £2,136

(last active 16/09/26)

Location

Grindon, SR4

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

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LJP Roofing

From £2,032

(last active 16/09/26)

Location

Shadforth, DH6

LJP Roofing are here to help customers who need an Extension Builder in Hesleden. We offer a competitive rate to complete all your extension builde...

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Empire Building Contracts

From £1,944

(last active 14/09/26)

Location

Preston-on-Tees, TS18

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

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OCC Construction

From £1,240

Member since July 2020

Location

Gateshead, NE10

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

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Under Pressure

From £2,080

(last active 27/08/26)

Location

County Durham, DL2

Relax... you have found a reliable extension builder in Hesleden. Under Pressure is a friendly and reliable company based in Hesleden who consider ...

RSJ cost in Hesleden

Estimates for install an rsj near Hesleden

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Hesleden 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 Hesleden by posting a job with HaMuch and we will send it to extension builders in Hesleden.


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Peterlee£36£230
Install An RSJ near Hartlepool£40£236
Install An RSJ near Billingham£44£242
Install An RSJ near Seaham£35£235
Install An RSJ near Middlesbrough£43£236
Install An RSJ near Stockton-on-Tees£41£228
Install An RSJ near Durham£47£267
Install An RSJ near Redcar£42£240
Install An RSJ near Redcar & Cleveland£43£254
Install An RSJ near Eston£42£241

Estimates for common extension builder jobs in Hesleden;

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.

Underpin a building

Underpin a building - £17,414

Two storey extension

Two storey extension - £87,872

Build a timber frame extension

Build a timber frame extension - £25,914

Build a swimming pool

Build a swimming pool - £80,914

Single storey extension

Single storey extension - £53,288

Side return extension

Side return extension - £40,537

Install an RSJ

Install an RSJ - £2,114

Outbuilding

Outbuilding - £9,914

Build a Mansard loft conversion

Build a Mansard loft conversion - £51,914

Loft conversion

Loft conversion - £32,948

Build a kitchen extension

Build a kitchen extension - £41,914

Hip to gable loft conversion

Hip to gable loft conversion - £41,914

Granny annexe

Granny annexe - £86,914

Garden office

Garden office - £9,914

Convert a Garage

Convert a Garage - £15,914

Garage

Garage - £18,414

Build a flat roof extension

Build a flat roof extension - £21,914

Build a dormer loft conversion

Build a dormer loft conversion - £41,914

Concrete foundations

Concrete foundations - £6,164

Convert a bungalow loft

Convert a bungalow loft - £28,914

Convert a basement

Convert a basement - £36,537

More extensions & conversions cost guides...