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Ducted air conditioning is usually the biggest heating and cooling decision a Geelong homeowner makes, and the two questions we get asked most are what it costs to install and what it costs to run. The honest answer is that installation cost comes down to three real things: how many zones the system needs, whether your existing ductwork can be reused, and how much roof and ceiling access the installers have to work with. Running costs are more predictable, because a reverse-cycle ducted system typically returns 3 to 4 units of heating or cooling for every 1 unit of electricity it uses, well ahead of an old gas ducted heater running alongside a separate cooling unit. However you type it into Google, air conditioning, aircon, or airconditioning Geelong, this is the system most homes end up comparing everything else against.
What actually drives the installation price
Geelong air conditioning needs vary a lot, from a single-storey weatherboard in Newtown to a two-storey new build in Armstrong Creek, and quoting one number without seeing the roof space would do you a disservice. A handful of specific things move the price more than anything else.
A three-bedroom home with one zone for the bedrooms and one for the living areas needs a lot less ducting and a simpler controller than a five-zone home where every room has its own control. If you’re replacing an old gas ducted heater and the existing ducts are still in good condition, reusing them cuts a meaningful amount off the job. Undersized, damaged, or missing ductwork, which is common in homes that have only ever had split systems, means a full duct run, and that adds both time and materials. A single-storey home with a standard pitched roof is usually the easiest and most affordable install, while cathedral ceilings, tight roof cavities, and second storeys all add labour. We most commonly recommend Fujitsu, alongside Mitsubishi Electric, Panasonic, ActronAir and Samsung, and the size and star rating you choose for your home changes the unit cost itself. And if you’re currently running an old gas ducted heater through winter and a separate cooling unit through summer, moving to one reverse-cycle ducted system is often closer in cost to just replacing the heater, since you’re no longer paying to service or eventually replace two separate systems.
You can see the systems and brands we install, along with the guarantees that come with every job, on our ducted air conditioning page.
Why running costs tend to surprise people, in a good way
A reverse-cycle ducted system typically delivers 3 to 4 units of heating or cooling for every 1 unit of electricity it draws, because it’s moving heat rather than generating it the way old gas heating does. Zoning adds another layer of saving on top of that. Instead of heating or cooling the whole house at once, you can shut off the guest room and the home office and only run the zones you’re actually using that evening.
Compare that to the two-system setup a lot of older Geelong homes are still running, a gas ducted heater for winter and a separate split system or two for summer. That means two services, two running-cost lines on the household budget, and two systems that can each fail on their own schedule.
| Old gas ducted heater plus separate cooling | One reverse-cycle ducted system | |
|---|---|---|
| Systems to maintain | 2 | 1 |
| Bills to track | Gas and electricity | Electricity only |
| Zoning control | Rarely available on older gas systems | Standard on modern ducted systems |
| Heats and cools | Heating only | Both, from the same system |
Rebates that can bring the upfront cost down
Victoria’s energy efficiency programs, including Victorian Energy Upgrades and Solar Victoria, can reduce the cost of moving to a reverse-cycle ducted system. In 2025 alone, we generated 29,567 Victorian Energy Efficiency Certificates for our customers, each one representing a tonne of carbon reduced. Eligibility and rebate amounts change and depend on your specific system and household, so rather than quote a figure that might be out of date by the time you read this, we’d rather check your eligibility properly and tell you exactly what applies to your home.
A Highton morning, before and after
Picture a weatherboard home in Highton with an ageing gas ducted heater from the early 2000s and a couple of wall-mounted split systems doing their best against the summer heat in the two bedrooms that actually get used. Every winter morning starts with cranking the heater up from cold while everyone showers and gets ready for school. Every 40-degree January afternoon means closing doors and hoping the split system in the lounge room can keep up while the rest of the house bakes.
Swap that setup for one zoned, reverse-cycle ducted system, and the same morning looks different. The bedrooms warm up on a timer before anyone’s alarm goes off, the heating switches off once everyone’s out the door, and on the hot days, the whole house cools evenly instead of one room doing all the work. That’s the everyday difference ducted air conditioning makes, not just a number on a bill.
Ready to find out what it would cost for your home?
Every Geelong home is different enough that we’d rather come and look at yours than guess over the phone. Book a free, no-pressure assessment with Too Hot To Handle and we’ll walk your roof space, talk through zoning, and give you a straight answer on cost, timing, and rebate eligibility, the same honest advice we’ve given Geelong homes since our very first job in 2017. Call us on 0480 005 425 or email info@toohottohandle.com.au to get started.
FAQ
How much does ducted air conditioning cost to install in Geelong?
It depends more on zone count, existing ductwork, and roof access than on your suburb. The most accurate way to get a real number is a free on-site assessment, since a phone quote risks pricing someone else’s roof, not yours.
Is ducted air conditioning cheaper to run than split systems or gas ducted heating?
A modern reverse-cycle ducted system usually costs less to run than old gas ducted heating, because it returns 3 to 4 units of heating for every unit of electricity instead of burning gas directly, and zoning means you’re not paying to heat or cool rooms nobody’s in. Compared with running several separate split systems, one well-zoned ducted system is often more efficient too, since it’s designed and controlled as one system rather than several units working independently.
Can I keep my existing ductwork when upgrading to a reverse-cycle ducted system?
Often yes. If the ducts are in good condition and sized correctly for the new system, reusing them is one of the biggest cost savings available. We check this as part of every assessment, since ducts that are undersized or damaged need replacing regardless of which system you choose.
Are there rebates available for ducted air conditioning in Victoria?
Programs like Victorian Energy Upgrades and Solar Victoria can reduce the cost of an eligible upgrade, but amounts and eligibility rules change and depend on your household and system choice. We check your actual eligibility before quoting rather than promising a figure that might not apply to your home.
How long does a ducted air conditioning installation take?
A straightforward install that reuses existing ductwork is usually quicker than a full new duct run in a home that’s never had ducted heating or cooling before. We’ll give you a realistic timeframe once we’ve seen the job, the same policy we apply to every quote.
