our story.
Le Gassick Mechanical Services (LG Mech) stands at the forefront of HVAC and mechanical solutions, delivering excellence, innovation, and performance across residential, commercial, and industrial sectors. We are trusted to tackle the most complex, high-stakes projects, consistently exceeding expectations and setting the benchmark for quality, efficiency, and reliability in the industry.
Under the visionary leadership of Kelley Le Gassick, our director, LG Mech combines strategic insight with unmatched technical expertise. Kelley’s guidance ensures that every project — no matter the size or complexity — is executed flawlessly, on time, and on budget, delivering systems that are high-performing, sustainable, and engineered to stand the test of time.
Our team of specialists brings together deep industry knowledge, cutting-edge technology, and meticulous attention to detail. From initial consultation and design through to installation, commissioning, and ongoing service, we maintain the highest standards of professionalism and operational excellence, transforming challenges into streamlined, high-performance solutions.
At LG Mech, we do more than deliver projects — we create lasting partnerships. Every engagement is tailored to the unique needs of our clients, with a focus on innovation, efficiency, and measurable results. Our relentless commitment to excellence, precision, and reliability has earned us a reputation as an industry leader, trusted by clients to deliver outcomes that not only meet but redefine expectations.
With LG Mech, clients gain more than a service provider — they gain a dedicated partner capable of transforming the most complex HVAC and mechanical challenges into efficient, high-performance systems that deliver long-term value, confidence, and exceptional results every time.
kelley le gassick
founder & director
With over fourteen years in the HVAC industry, Kelley Le Gassick is a proven leader and innovator, renowned for delivering high-performance, reliable, and tailored HVAC solutions. He co-founded MK Air, transforming it from a small startup into a thriving business with a reputation for excellence, innovation, and client satisfaction.
Building on this success, Kelley established Le Gassick Mechanical Services to set a new standard in the industry. Hands-on and strategic, he oversees every project from design to commissioning and ongoing maintenance, ensuring precision, efficiency, and exceptional outcomes. Under his leadership, LG Mech is a powerhouse of expertise, teamwork, and innovation — consistently exceeding client expectations and delivering systems built to last.
jack le gassick
director of service & small projects
With over 20 years of industry experience, Jack Le Gassick brings deep technical expertise and strong leadership to the Service and Small Projects division at Le Gassick. A fully qualified refrigeration mechanic, he built his career with leading firms before co-founding and growing his own HVAC business into a trusted provider across residential, commercial, and specialised facilities.
Jack’s focus on building performance, energy efficiency, and preventative maintenance ensures clients benefit from reliable, sustainable systems that perform throughout their lifecycle. His commitment to quality, client value, and long-term partnerships continues to strengthen Le Gassick’s reputation for professionalism and reliability across Melbourne and regional Victoria.