O'Connors

O’Connors is South Australia’s leading mechanical services contractor, delivering end-to-end solutions from design to construction and ongoing maintenance. With more than 25 years of proven expertise and over a century of industry heritage, we bring unmatched skill, innovation and reliability to every project. Our team of engineers, designers, tradespeople and project managers collaborate closely with clients to achieve outcomes that combine performance, efficiency and sustainability. We specialise in creating and installing complex mechanical systems, supported by advanced planning, prefabrication and cutting-edge Building Information Modelling (BIM). Every project benefits from our strong focus on safety, compliance and environmental responsibility, backed by ISO-certified quality systems. With 120 dedicated staff and trusted industry partners, we continue to set benchmarks for excellence across health, education, retail and defence projects. By choosing O’Connors, clients gain a partner who values integrity, teamwork and long-term results.

• Mechanical engineering design and drafting
• Prefabrication and modularisation
• Project management and commissioning
• Construction and installation of mechanical systems
• Service, repair and preventative maintenance
• Energy optimisation and lifecycle system performance