About Lilac HVAC
Local air conditioning and HVAC service you can count on across the Central Coast and Lake Macquarie.
Expertise
Skilled in residential and commercial air conditioning, VRF systems, and ventilation.
RELIABILITY
Fast call-backs, dependable scheduling, same-day support when possible.
SAFETY
Licensed and insured, with every installation and repair meeting Australian standards.
TRANSPARENT
Fixed-price quotes and honest advice so you know what to expect.
About Us
A Commitment to Reliable, Honest Service
I’m Gary Lui, owner and licensed technician at Lilac HVAC. With years of hands-on experience across the Central Coast and southern Lake Macquarie, I provide every customer with clear advice, tidy workmanship, and transparent pricing. Whether it’s a split system in a family home or a commercial ventilation system, you can trust the job will be done properly.
10+ years working with residential and light-commercial HVAC
Authorised Hitachi and Temperzone installer
Known locally for fast call-backs and tidy work
Licensed and insured
About Gary
Every job matters. I believe in practical, lasting solutions - not quick fixes. My work is hands-on and detail focused, with clear communication from start to finish.
Expert in ducted, split, and VRF systems
Proven track record of clean, compliant installs
Trusted by homeowners and local businesses alike
Clear advice, neat workmanship, and a local you can trust to keep your power safe.
Excellent Service, Excellent Value!
We take pride in doing the job right the first time. Clear quotes, neat work, and local support you can count on.
How We Work
Consultation
We listen, assess, and recommend the best HVAC solution for your space.
Evaluation & Planning
Site inspection and transparent quote.
Tailored Solutions
Professional installation, maintenance, or repair with tidy workmanship.
Some Of Our Projects
Why Customers Choose Us
Discover why our clients rely on us for all their electrical needs.
Friendly communication from quote to clean-up
Trusted and recommended locally
Licensed and insured
Fixed-price quotes and same-day response where possible
Installations, Repairs, and Maintenance You Can Depend On
Free estimates are available for larger or complex jobs.
Lilac HVAC is The Central Coast & Lake Macquarie’s top choice when it comes to professional HVAC installation, service, and repairs for residential and commercial customers. Our main goal is to make sure that we recommend the right HVAC solution at the right price to every customer. We offer a 100% satisfaction guarantee to all of our customers. If you’re not completely satisfied with our work, then we promise to make it right.
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