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GJ Welding is owned and operated by Graham Johnson, out of South Island New Zealand.  We have extensive experience in welding and fabrication disciplines, serving a variety of industries.

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We are all about quality, and delivering the best possible outcomes for our clients.

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Home: About
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Services

GJ Welding provides mobile welding services & labour-hire New Zealand wide.

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We serve a wide range of industries including:

  • Commercial & Civil construction

  • Timber treatment & processing 

  • Oil & gas

  • Heavy equipment

  • Agricultural

  • Conservation

  • Residential construction

Our focus:​

  • Pipe welding & fabrication​​

  • ​Structural welding & erection

  • vessel maintenance & repair

  • equipment repair

  • pile splicing

  • shutdowns 


Current Certifications:​

  • ASME IX​​​

  • AS/NZ 2980



We have the capacity to develop and qualify welding procedures specific to the requirements of your job

Home: About
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Carbomn pipe fab
vessel sample extraction and patching
Installation of bypass
Stainless pipe work at t he sawmill
Carbon pipe fab
Bevelling pile casings
Carbon pipe fab
Extracting samples from an out of service vessel
Fabbing carbon pipe spools for Xpole, Cromwell NZ
splicing pile casings
Bevelling pile casings
Long lining material into the job site
carbon-inconel spool
stainless riser replacements for PanPac
Flying Aviary prefab
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 021 235 2404

Contact us with queries about welding requirements for your next project.


We are based in the Dunedin area of  Otago NZ

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