5.0 ★ from 42 Google reviews
Split System Air Conditioners for Central Coast Homes, Sized and Installed Right
Get split systems supplied, installed, replaced, and repaired by licensed local technicians with 10+ years on the tools. Fixed price before any work starts.
Supply, install, replacement and repairs
Authorised Hitachi and Temperzone installer
Fixed-price quotes, no hidden extras
Licensed and insured in NSW
★★★★★
"The installer was on time and did a wonderful job. The price was excellent and we were so happy we're having another unit installed to replace an old one. Highly recommend."
- Robin K, Toronto
The Most Cost-Effective Way to Cool the Rooms You Actually Use
A split system is the workhorse of Central Coast homes: one indoor unit, one outdoor unit, and reverse-cycle comfort for the bedroom, living area, or home office you spend the most time in.
The catch is that a split only performs as well as its sizing and its install. Lilac HVAC assesses the room, recommends the right capacity for the space and the Coast climate, and installs it to Hitachi and Temperzone spec: condensate drained properly, cabling run neatly, and the outdoor unit positioned with salt air in mind.
A unit that fits the room, quoted at a fixed price.
Split Systems We Handle
New split systems sized for the room and installed to manufacturer spec, protecting your warranty from day one.
Ageing, noisy, or inefficient units swapped out cleanly for modern reverse-cycle systems that cost less to run.
Splits that won't cool, won't heat, leak water, or throw error codes, diagnosed and fixed properly.
Coil cleans, filter cleans, and drain flushes that keep the unit efficient and protect it from salt-air wear.
Need to run several rooms off one outdoor unit? Ask about a multi-head system.
Signs a Split System Is the Right Call
One or two rooms doing all the work: a main bedroom, living area, or home office
No ceiling or roof space for ducting, or a budget that doesn't stretch to it
An extension, granny flat, or garage conversion the existing system doesn't reach
A unit or townhouse where a compact system has to do the job
An old split that's more than 10 years old, struggling, or costing more each summer
A window box or portable unit that can't keep up with Coast humidity
Not sure whether a split, multi-head, or ducted system suits your home best? We’ll assess the space and give you an honest recommendation, not the one with the biggest price tag.
Why Central Coast Homes Choose Lilac HVAC for Split Systems
Sized for the room, not the brochure.
An undersized unit runs flat out and dies early; an oversized one short-cycles and wastes power. We measure the space and recommend the capacity it actually needs.
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.
Installed for coastal conditions.
Outdoor units positioned and maintained with salt air in mind, because near the water, corrosion is what kills systems early.
How It Works
1.Get in touch
Call 0401 764 917 or request a quote and tell us what you need.
Site check and fixed-price quote.
We assess the space, recommend the right unit and position, and send a clear, fixed-price quote before any work starts.
3. The install, done tidy
Unit installed to manufacturer spec, tested in every mode, the controls explained, and the site cleaned before we leave.
5.0 ★ from 42 Google reviews
What Our Customers Say
Split System Installation Across the Central Coast
Lilac HVAC supplies, installs, and services split system air conditioners 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
How much does a split system air conditioner cost installed?
It depends on the unit’s capacity, the wall it’s going on, and the distance between the indoor and outdoor units, so we quote each job individually. You get a fixed price before any work starts, with no hidden extras.
What size split system do I need?
As a rough guide, small bedrooms suit around 2.5kW, larger bedrooms and offices 3.5kW, and open living areas 5kW to 8kW. Ceiling height, insulation, window size, and sun exposure all shift the number, so we size the unit to your actual room rather than a chart.
Should I get a split system or ducted air conditioning?
A split system suits cooling and heating one or two rooms at the lowest cost. Ducted suits whole-home comfort with zoning. If your home sits somewhere in between, a multi-head system can run several rooms off one outdoor unit. We’ll assess your space and recommend the option that fits how you live.
What brands of split system 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.
Are split systems reverse cycle? Can they heat in winter?
Modern split systems are reverse cycle, so the same unit cools in summer and heats in winter. Reverse-cycle heating is one of the cheapest ways to heat a Central Coast home per kilowatt of warmth.
Does salt air affect split systems on the Central Coast?
Yes. Salt air corrodes outdoor coils and cabinets, especially in homes near the water, which shortens system life. We position outdoor units sensibly and recommend annual servicing to keep coils clean and protected.
Can you replace my old split system?
Yes. We remove the old unit, install the new one cleanly, and take the old system away. If a repair is the smarter spend, we’ll tell you that first.
What areas do you cover?
Lilac HVAC installs split systems across the Central Coast, including Gosford, Erina, Tuggerah, Wyong, and Woy Woy.
Get the Right Split System, Quoted at a Fixed Price
Request a fixed-price quote and get an honest recommendation on the right unit and size for your room. No pressure, no hidden extras.
Licensed and insured in NSW. Most quotes are back within 24 hours.