5.0 ★ from 42 Google reviews
Fast, Reliable Air Conditioning Repairs Across the Central Coast
Get honest, expert repairs for split, ducted, and VRF/VRV systems, done by licensed local technicians with 10+ years on the tools. Same-day support where possible.
Same-day support where possible
Split, ducted and VRF/VRV systems repaired
Fixed-price quotes, no hidden extras
Licensed and insured in NSW
★★★★★
"Got our A/C unit working again with the minimum of fuss. Great communication and punctuality, very polite too."
- Catherine C.
When Your Air Conditioner Stops, We’ll Get It Sorted
When your air conditioner stops on a hot day, you want the truth about what it needs. Lilac HVAC diagnoses the real fault and fixes it properly, rather than simply patching the symptoms. Split, ducted, cassette, and VRF/VRV systems repaired for homes and small commercial sites, with same-day support where possible and a fixed price before any work starts.
Get your comfort back, without the runaround.
Air Conditioning Systems We Repair
Split systems
Wall-mounted and multi-head units that have stopped cooling, heating, or running properly.
Ducted systems
Whole-home ducted air conditioning, including airflow problems, zoning faults, and noisy operation.
VRF/VRV systems
Variable refrigerant systems in larger homes and commercial buildings, diagnosed and repaired properly.
Cassette and bulkhead units
Ceiling-mounted units in offices, shops, and open-plan spaces.
Signs It's Time to Replace, Not Repair
Your system is more than 10 to 15 years old
Repeated breakdowns, with each repair costing more than the last
Airflow that keeps dropping off no matter what
Running costs creeping up while performance drops
Parts becoming hard to source for an older unit
A system that was the wrong size for the space from day one
If a repair still makes sense, we’ll say so. You get an honest assessment and the numbers to make your own call. We’ll never push you into replacing a system that still makes financial sense to repair.
Why the Central Coast Chooses Lilac HVAC for Installations

Authorised Hitachi and Temperzone installer
Your system is installed to manufacturer spec, which protects your warranty and keeps it running the way it should.
Fixed-price quotes, no hidden extras
You get the number before the work starts. What you're quoted is what you pay.
Sized for the local climate.
Systems chosen for Coast conditions: humid summers, cool winters, and salt air near the water.
Tidy installs, backed by a guarantee.
Cabling run neatly, mess cleaned up, and if you're not completely satisfied with our work, we'll make it right.
How It Works
1.Get in touch
Call 0401 764 917 or request a quote and tell us what you need.
2. Site check and fixed-price quote
We assess the space, recommend the right system, and send a clear, fixed-price quote before any work starts.
3. The install, done tidy
We install the system to manufacturer specifications, test it thoroughly, show you how it works and clean the site before leaving.
5.0 ★ from 42 Google reviews
What Our Customers Say
Air Conditioning Installation Across the Central Coast
Lilac HVAC installs and replaces air conditioning right across the Central Coast, from Woy Woy in the south up through Gosford and Erina to Tuggerah and Wyong.
Gosford
Wyong
Tuggerah
Erina
Woy Woy
Umina Beach
The Entrance
Terrigal
Lake Haven
Bateau Bay
Not sure if we service your area? Give us a call, we probably do.
Frequently Asked Questions
What air conditioning brands do you install?
Lilac HVAC is an authorised Hitachi and Temperzone installer, so your system is installed to manufacturer spec and your warranty is protected. Have another brand in mind? Get in touch and we’ll talk through your options.
How much does air conditioning installation cost?
It depends on the system type, size, and your home’s layout, so we quote each job individually. You get a fixed price before any work starts, with no hidden extras, and free estimates on larger installs and commercial jobs.
Should I get a split system or ducted air conditioning?
Split systems suit single rooms and smaller budgets. Ducted suits whole-home comfort with zoning to manage running costs. We’ll assess your space and recommend the option that fits how you live, not the one with the biggest price tag.
Can you replace my old air conditioner?
Yes. We replace ageing split and ducted systems and install the new one cleanly. If a repair is the smarter spend, we’ll tell you that first.
Are you licensed and insured?
Yes. Lilac HVAC is licensed and insured in NSW, and all work is completed to Australian standards.
What areas do you cover?
Lilac HVAC installs air conditioning across the Central Coast, including Gosford, Erina, Tuggerah, Wyong, and Woy Woy, plus Cooranbong, Morisset, and Toronto in southern Lake Macquarie.
Get the Right System, Quoted at a Fixed Price
Request a fixed-price quote and get an honest recommendation on the right system for your home or business. Free estimates on larger installs and commercial jobs.
Licensed and insured in NSW. Most quotes are back within 24 hours.