Get the right system designed for your home from day one. Gary works with builders, owner-builders, and new homeowners across the Central Coast to design and install air conditioning that suits the home — not just what's cheapest or easiest to install.
Whether you're building a new home, buying off the plan, or moving into a newly purchased property, getting your air conditioning right from the start saves money and headaches down the track. Retrofitting ducted air conditioning after a home is built is significantly more expensive and disruptive than installing it during construction. And choosing the wrong split system for a room means years of inadequate comfort and inflated energy bills.
Gary works with homeowners at every stage — from pre-construction planning with your builder, to post-settlement installation in an existing home. He'll assess your floor plan, orientation, insulation, and lifestyle to recommend the most cost-effective system for your situation.
There's no one-size-fits-all answer. A north-facing open-plan home on the Central Coast needs a very different solution to a south-facing two-storey with multiple bedrooms. Gary takes the time to understand your home before recommending anything.
Best for: Larger homes, new builds, whole-home comfort
A single outdoor unit connects to concealed ductwork throughout the home, delivering conditioned air to every room through ceiling diffusers. Zoned systems let you control different areas independently. Ideal for new builds where ductwork can be installed before plasterboard.
Best for: Medium homes, targeted room control, retrofits
One outdoor unit connects to multiple indoor units in different rooms. Each room has its own controller and can be set independently. More flexible than ducted for existing homes, and more cost-effective for homes where only certain rooms need conditioning.
Best for: Apartments, single rooms, targeted areas
The most common and cost-effective solution for conditioning a single room or open-plan living area. Gary will size it correctly for the space and install it in the optimal position for even airflow.
Gary regularly coordinates with builders and project managers on new construction projects. He can provide specifications and drawings for building approval, attend site meetings, and schedule installation to align with construction milestones — ensuring ductwork is installed before plasterboard and outdoor units are positioned before landscaping.
Discuss Your BuildFree consultation and fixed-price quote. Gary responds within a few hours.
Lilac Air Conditioning has a 5.0 average from 50 Google reviews, and every one of them is five stars. Here are some, in the reviewers' own words.
Heidi Iveson
February 2025
"Not expecting our air conditioning to stop on one of the hottest days of the year, I contacted Gary and he advised me straight away his availability and turned up to review our situation. Unable to source spare parts for our older unit, Gary was up front and honest in quoting, supply and installation. I would highly recommend Gary for his experience, knowledge and thorough communication. Thanks Gary"
Tania Kanaan
July 2026
"We recently had our ducted air conditioning system serviced and were very happy with the service we received. Gary is friendly, knowledgeable and professional. Everything was explained clearly, and the service was completed efficiently. If you are located on the Central Coast, we would definitely recommend Lilac HVAC and will happily use them again in the future."
Sutha Suthakar
June 2026
"We got this group to service our Daikin Ducted reverse cycle AC system. Gary and his team were fantastic. They were on time and did thorough job. We found them to very professional and cleared lot technical questions we had. They are locals!!!!!! and located within the Watagan Estate. Keep up the good work guys."
Michael
January 2026
"We had four air conditioners installed and couldn’t be more satisfied. From the initial quotation to the final installation, communication was always prompt and professional. The installer arrived on time, worked diligently, and ensured everything was installed to a high standard. Excellent workmanship and very reliable service"
Gosford Dental Centre
June 2025
"We highly recommend Lilac HVAC. They were able to fix 3 previously installed units that were incorrectly linked at our business premises. Very professional service and knowledgeable."
Michelle MacKnight
March 2026
"Thanks Gary and your Apprentice for installing my new split system air conditioner. I appreciate your friendliness, punctuality, and job quality. I am very happy with my new system!"
Perfectionist Detailing
February 2026
"From start to finish, Gary was a pleasure to deal with when we needed an additional outlet installed to our ducted aircon system. He is a highly knowledgeable professional who takes pride in his work and the service he delivers to customers. Thank you Gary!"
Brett Ashman-Steel
January 2026
"Gary came highly recommended by another business. We discussed the problem we were having with my partners business and he provided a quick and affordable quote. Within days the problem was rectified. Very friendly and professional service. Would certainly recommend Lilac HVAC. Thanks Gary"
Takes less than 60 seconds — and it means the world to a small local business.
Gary will assess your home, recommend the right system, and provide a fixed-price quote — no obligation, no pressure.