Air conditioning in Wollongong
Wollongong, Shellharbour and across the Illawarra. Houses between the escarpment and the sea, sized for the local climate.
Between the escarpment and the sea
The Illawarra sits in the milder coastal band, the sea moderates the heat and the escarpment shapes local conditions, so cooling loads are lower than the western plains.
Right on the coast, salt air is the practical consideration. Outdoor units near the sea need siting and protecting accordingly, which we account for when we recommend a system.
Work out your size
Mostly houses, which suits ducted
The Illawarra is largely freestanding houses, around 71% of dwellings, so there is the roof space ducted needs. Zoned ducted gives even comfort across the home.
Where ducted is not the right fit, a few high-capacity splits handle it. We match the system to the house and to where the outdoor unit can sit out of the worst of the sea air.
- Ducted & zoned, whole-home comfort for houses
- High-capacity splits, where ducted isn’t practical
What it costs to run in Wollongong
Cooling is the biggest summer line on the bill, even with the sea close by. These are official GEMS energy figures for the average climate zone, costed at the median Endeavour Energy network rate the Illawarra is on.
Rinnai T Series 2.5kW Split System
Rinnai · HINRT25B / HONRT25B · 7 stars coolingAbout $144 a year $39 cooling $105 heating
See this systemCarrier QSH High Static 13.6kW Ducted System
Carrier · 42QSH140D8S-1 · 3.5 stars coolingAbout $896 a year $324 cooling $572 heating
See this systemMitsubishi Electric PEA High Static Ducted 16kW Ducted System
Mitsubishi Electric · PEA-M160HAA · 3 stars coolingAbout $1,190 a year $439 cooling $751 heating
See this systemOr look up the exact model you have in mind:
Source: Australian GEMS registry · median of 162 Endeavour-network residential tariffs, including GST · Refreshed monthly · Last updated October 2026
Suburbs we cover in Wollongong
We install and service across Wollongong and the Illawarra, including:
Running cost guides
Energy & costsWhat air conditioning actually costs to run in Sydney
Most articles that tell you what air conditioning costs to run just make a number up. We use the official government energy figures for real models, times the current median Sydney electricity rate, and we show our working. Here is what it actually costs, and where your own bill might land differently.
Read
Energy & costsWhat reverse-cycle heating costs in a Sydney winter
In the official Sydney-zone figures, every one of the 275 rated models we install uses more energy heating than cooling. A bedroom split runs $86 to $125 a winter at the Sydney median rate, a 7 kW living-room split $283 to $363, a 14 kW ducted system $570 to $874.
Read
Energy & costsSame size, different bill: what the energy star rating is worth in dollars
At 7 kW, the 2-star and the 4-star wall splits we install are $111 a year apart to run at the Sydney median rate; at 2.5 kW the whole field spans $73. Here is what a star is worth, size by size, from the official figures.
ReadWhat customers say.
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Great service Reasonably priced Highly recommend using them 👌
We had an amazing experience with Schillair. From start to finish, Mark was professional, punctual, and incredibly knowledgeable. He quickly diagnosed the issue with our air-conditioning unit and provided a clear explanation of the necessar…
I recently had a great experience with Schillair again after had their service 7 years ago. The technician Mark arrived on time, quickly diagnosed the issue with my AC, and had it repaired efficiently. Mark was professional, knowledgeable,…
Wollongong air conditioning FAQs
Is ducted or split better for a Wollongong home?
Most Illawarra homes are freestanding houses with the roof space for ducted, which gives even, zoned comfort across the whole home. Where ducted is not practical, a couple of high-capacity splits do the job. We recommend on the actual house, not a default.
Does the coastal salt air affect air conditioners in the Illawarra?
Close to the sea, yes, salt corrodes exposed outdoor units over time. Where the condenser is mounted and how it is protected makes a real difference, so we site it with that in mind.
Do you cover the whole Illawarra, not just Wollongong?
Yes, from Thirroul and Bulli in the north through Wollongong and Figtree to Shellharbour, Albion Park and Kiama in the south. If you are nearby and not listed, just ask.
Are you licensed and insured?
Yes. Installs are carried out by licensed technicians and we are fully insured, with a clear fixed-price quote in writing before any work starts.
Other areas we cover
Penrith, Blacktown, Parramatta and right across the west. The inland heat changes what you actually need, here's how we size, recommend and quote for it.
Air conditioning in Western Sydney
Bondi to Coogee and across the east. Apartment living, strata rules and salt air change what works, here’s how we size and install for it.
Air conditioning in Eastern Suburbs
Manly to Palm Beach. Beachside units and freestanding homes, salt air, and a mix of splits and ducted, sized for the coast.
Air conditioning in Northern Beaches
Newtown to Balmain. Terraces, warehouse conversions and unit blocks, each needs a different approach, here’s ours.
Air conditioning in Inner West
Gosford to The Entrance. Mostly freestanding homes near the water, sized for warm, humid summers and salt air.
Air conditioning in Central Coast
A fixed-price quote, sized for your home
Tell us your space and we’ll size it properly for Wollongong and the Illawarra, from your photos or a site visit when the job needs one, then put a fixed price in writing. No obligation.