Formwork Hoist: A formwork hoist heading to a customer’s building site in Sydney.

Sonnex has over 20 years experience in engineering and fabrication. Once a top tier supplier to GMH Holden factory in Elizabeth, Sonnex has successfully diversified to provide expert fabrication services across Adelaide, South Australia, and interstate.

Over the years Sonnex has completed large site installations at GMH, Cutler Brands, ALCAN, Hirotec, Walkers, Wolf Blass, AGL, Arium Mining, Leighton Contracting, Monadelphous, Broadspectrum, and other customer sites. Our leading team of fabricators have the advantage of in-house high-precision laser cutting and folding machines for rapid turnaround of prototypes and samples.

Sonnex’s background with major Australian and international companies has given us experience across a board range of industry sectors including transportation, automotive, mining, manufacturing, construction, rail and power generation.


  • Structural Steelwork;
  • Conveyors;
  • Sound Enclosures;
  • Building framework;
  • Tanks & Platforms.

Plant Equipment & Production Lines

  • Manufacture and Installation;
  • Maintenance and Demolition.

Sonnex has the capacity for processing of small production runs through to large quantity requirements. The guiding principles for our internal and external relationships are flexibility, responsibility and integrity with open and honest communication and team work to ensure that we deliver on, or ahead of time.

Please call (08) 8252 8777 or email us to find out more about our Engineering services and how Sonnex can help you. You can also visit our Frequently Asked Questions page for information about working with us.