Frequently Asked Questions
Clear, straightforward answers to the questions locals ask most.
What areas do you service?
We cover the southern Lake Macquarie and Central Coast region, including Cooranbong, Gosford, Tuggerah, Erina, Wyong, Morisset, Woy Woy, and Toronto.
Do you install both split and ducted systems?
Yes, we install and service split, ducted, cassette, and VRF/VRV systems for homes and businesses.
What should I try before calling for service?
* Check the mode – ❄ for cooling, ☀ for heating.
* Rinse the filters if they’re dusty.
* Reset the unit at the mains for two minutes.
* If it still won’t work, call Lilac HVAC on 0401 764 917.
How often should my system be serviced?
For most homes, once a year. Commercial sites may need servicing every three to six months.
Do you provide same-day repairs?
Yes, whenever possible. If not, we provide advice over the phone and book the next available slot.
How do I know if my system needs replacing?
Signs include weak airflow, frequent breakdowns, or a system over 10–15 years old.
Do you provide fixed-price quotes?
Yes, all quotes are fixed-price and transparent.
How can I book a service?
Call 0401 764 917 or fill out the booking form online.
Need a local HVAC specialist?
Call 0401 764 917
Free estimates are offered for jobs more complex than a standard service call.
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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