5.0 ★ from 42 Google reviews
Packaged Air Conditioning Units Supplied, Installed and Replaced Across the Central Coast
Get packaged rooftop and slab-mounted units for shops, offices, clubs, and light industrial sites, handled by licensed local technicians with 10+ years on the tools. Free estimates on commercial jobs.
Supply, changeovers, repairs and maintenance
Authorised Hitachi and Temperzone installer
Fixed-price quotes, no hidden extras
Licensed and insured in NSW
★★★★★
"We highly recommend Lilac HVAC. They fixed three previously installed units that were incorrectly linked at our business premises. Very professional and knowledgeable."
- Gosford Dental Centre
The Workhorse on the Roof, Running When It Matters
A packaged unit puts the whole air conditioning system in one cabinet, usually on the roof or a slab beside the building, ducting conditioned air straight into the space below. It’s the workhorse of Central Coast shops, offices, medical suites, clubs, and light industrial units, and when it stops, so does trade.
Lilac HVAC supplies, installs, replaces, repairs, and maintains packaged units across the Coast. Where the existing ductwork and roof penetrations are sound, a like-for-like changeover is often the cleanest fix: old unit off, new unit on, minimal disruption to the building.
One local contractor for the unit on the roof and everything it connects to.
Packaged Unit Services We Handle
Ageing rooftop and slab-mounted units replaced like-for-like where the ductwork is sound, sized properly for the space rather than just matching the old nameplate.
Packaged units specified and installed for new fit-outs, extensions, and buildings moving off failed or obsolete systems.
Units that trip, short-cycle, lose airflow, or stop dead, diagnosed at the cause and fixed properly.
Coils, filters, belts, drains, and controls checked on a three-to-six-month cycle, with a written report for commercial and strata records.
Signs Your Packaged Unit Is on Borrowed Time
The unit is 15 to 20 years old, or nobody remembers when it went in
It runs on R22 refrigerant, which has been phased out in Australia and is now costly or impossible to source
Power bills climbing while the space gets harder to keep comfortable
Breakdowns arriving closer together, each repair dearer than the last
Tripping, short-cycling, or airflow that keeps dropping off
Rust, corrosion, or water where it shouldn't be, especially near the coast
An old packaged unit rarely fails on a mild day. It fails in January, with customers in the building. If yours is showing any of these signs, get it assessed before summer makes the decision for you.
Why Central Coast Businesses Choose Lilac HVAC for Packaged Units
Authorised Hitachi and Temperzone installer.
Packaged units are core Temperzone territory, and yours is installed and commissioned to manufacturer spec, which protects the warranty and the performance.
Sized for the space, not the old nameplate.
Buildings change: new shopfronts, more equipment, different use. We check the current load before quoting a changeover, so you're not inheriting a 20-year-old sizing mistake.
One contractor for HVAC and ventilation.
The packaged unit, the ductwork, and the exhaust systems around it handled by the same local business, so nothing falls between contractors.
Fixed-price quotes, no hidden extras.
You get the number before the work starts, and free estimates on larger and more complex commercial sites.
How It Works
1.Get in touch
Call 0401 764 917 or request a quote and tell us about the building and the unit.
Site check and fixed-price quote.
We inspect the existing unit, ductwork, and access, confirm the right replacement or repair, and quote it clearly before any work starts.
3. The install, done tidy
Installation or changeover completed to Australian standards, the unit commissioned and tested, and the site left clean, with work scheduled around your trade where possible.
5.0 ★ from 42 Google reviews
What Our Customers Say
Packaged Air Conditioning Units Across the Central Coast
Lilac HVAC installs, replaces, and maintains packaged air conditioning units right across the Central Coast, from Woy Woy in the south up through Gosford and Erina to Tuggerah and Wyong.
Suburbs serviced include:
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 is a packaged air conditioning unit?
A packaged air conditioning unit houses the entire system, compressor, coils, and fans, in a single cabinet, usually mounted on the roof or on a slab beside the building, with ducts carrying conditioned air into the space. It suits shops, offices, clubs, and light industrial buildings that need reliable heating and cooling from one self-contained unit.
What is a packaged air conditioning unit?
A split or ducted system separates the components: an outdoor compressor connected by refrigerant pipes to indoor units or a roof-space unit. A packaged unit puts everything in one cabinet outside the building, which simplifies servicing and frees up internal space. Packaged units are mostly a commercial choice; splits and ducted dominate homes.
Can you replace my old packaged unit like-for-like?
Usually, yes. Where the existing ductwork and roof penetrations are sound, we replace the unit on the same footprint with minimal disruption to the building. We also check the space’s current load first, so the new unit is sized for how the building is used today.
My unit runs on R22 refrigerant. What does that mean?
R22 has been phased out in Australia, so regassing an R22 unit after a leak or repair is now expensive and often not possible at all. If your packaged unit runs on R22, plan its replacement on your timeline rather than waiting for a January breakdown to set it for you.
How long does a packaged air conditioning unit last?
Around 15 to 20 years with regular maintenance, though coastal salt air can shorten that, particularly for units near the water. Condition matters more than age: we assess the unit and tell you straight whether repair or replacement is the smarter spend.
How often should a packaged unit be serviced?
Every three to six months for most commercial sites, depending on run hours and the environment. Regular servicing keeps coils, filters, belts, and drains in order, protects the compressor, and gives commercial and strata managers a written record.
How much does a packaged unit cost to supply and install?
It depends on the unit’s capacity, roof access, and the state of the existing ductwork, so we quote each job individually after a site assessment. You get a fixed price before any work starts, and estimates are free on larger and more complex commercial sites.
What areas do you cover?
Lilac HVAC installs and maintains packaged air conditioning units across the Central Coast, including Gosford, Erina, Tuggerah, Wyong, and Woy Woy, plus Cooranbong, Morisset, and Toronto in southern Lake Macquarie.
Get a Fixed-Price Plan for the Unit on Your Roof
Request a site assessment and a fixed-price quote for a packaged unit changeover, repair, or maintenance plan. Free estimates on larger installs and complex commercial sites. Strata or property manager? Request a written quote for your owners’ corporation or file.
Licensed and insured in NSW. Most quotes are back within 24 hours.