Trusted Air Conditioning and HVAC Services on the Central Coast and Lake Macquarie

From new installations to urgent repairs, Lilac HVAC delivers clear advice, tidy work, and fixed-price quotes you can rely on.

Air Conditioning and HVAC Services That Keep Your Home and Business Comfortable

01.

Residential Installations

Ducted and split system air conditioning installed to suit your home and lifestyle.

02.

Commercial HVAC

Professional service for offices, retail, and industrial sites, including VRF and ventilation systems.

03.

Repairs and Breakdowns

Fast response to faults and system failures, reducing downtime and restoring comfort.

04.

Routine Maintenance

Scheduled servicing, coil cleans, filter changes, and drain flushes to keep systems efficient.

05.

VRF/VRV Systems

Supply, install, and maintain variable refrigerant systems for complex buildings and large spaces.

06.

Ventilation Solutions

Carpark exhaust, kitchen and toilet exhaust fans supplied, installed, and maintained.

Quick Fixes

Before You Call

Air conditioners sometimes stop working for simple reasons. Before booking a service, try these quick checks – they solve most of the calls we receive.

If these steps don’t get things back on track,

give us a call and we’ll sort it quickly.

  • Check the mode – make sure your unit is set correctly.
    ❄ for cooling, ☀ for heating.

  • Clean the filters – clogged filters cause weak airflow, smells, and faults.

  • Reset the unit – after a power surge, turn it off at the mains, wait 2 minutes, and restart.

A Commitment to Reliable Service

I am Gary Lui, owner of Lilac HVAC. With years of experience across the Central Coast and Lake Macquarie, I deliver every job personally with clear quotes, honest advice, and tidy workmanship. From homes to commercial sites, you can count on dependable service and same-day support when it matters most.

  • Licensed & insured

  • Hitachi and Temperzone installer

  • Transparent pricing with no hidden extras

See Why Locals Trust Lilac HVAC

Your Local HVAC Specialist Across the Central Coast and Lake Macquarie

Based in Cooranbong, Lilac HVAC provides licensed air conditioning and HVAC services from Woy Woy to Toronto, including Gosford and Tuggerah. Whether it is a home installation, a strata building, or a commercial site, we deliver reliable service across the region.

Our Work

Keeping Your Home and Business Comfortable

Year-Round

We install, maintain, and repair split and ducted air conditioning, ventilation systems, and commercial HVAC across the Central Coast and southern Lake Macquarie. All work is licensed, insured, and completed to Australian standards.

What types of air conditioning and HVAC services do you offer?

We install, service, and repair split and ducted air conditioning, VRF/VRV systems, and ventilation for homes and small commercial sites across the Central Coast and southern Lake Macquarie.

Are you licensed and insured?

Yes. We are fully licensed in NSW and insured. All work is completed to Australian standards, and we are also authorised to install Hitachi and Temperzone systems.

How quickly can you respond to an urgent breakdown?

We aim for same-day support in Cooranbong, Morisset, Gosford, Tuggerah, Erina, Wyong, Woy Woy, and Toronto. If same-day is not possible, we provide advice over the phone and confirm the next available time. Call 0401 764 917.

Installations, Repairs, and Maintenance You Can Depend On

Free estimates are available for larger projects and complex commercial sites.

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.

Address

Jeremiah Drive, Cooranbong NSW 2265

Contact

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