01
Correct sizing
Oversized units short-cycle and fail to dehumidify; undersized units can't hold setpoint. Ask for a heat load calculation, not just a guess by room count.
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Split AC, multi-head, and ducted system prices, plus how to size properly so you don't end up cooling a room with twice the capacity you need.
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Home Services
Air conditioning in Australia is dominated by reverse-cycle (heat + cool) inverter systems. Split systems are the entry point; ducted systems cool the whole house from one outdoor unit. Pricing depends on capacity (kW), number of zones, and install complexity more than brand alone.
Sizing matters enormously. An undersized unit runs flat-out and can't reach setpoint. An oversized unit short-cycles, humidifies the room badly, and wastes power. Good installers do a rough heat-load calculation based on floor area, insulation, and glass.
What to look for
What separates a good hvac & air conditioning job from a bad one
The differences between quotes usually come down to a few things. None are visible on day one, and all show up later.
02
Star rating matters
Higher energy star rating = lower running cost. Over a 15-year system life, a 6-star unit can save $1,500–$3,000 vs a 3-star, often justifying the price gap.
03
Zoning on ducted
Zoning (per-room control) costs extra but saves significantly on running costs. Don't skimp here.
04
Servicing
Filters should be cleaned every 3 months; full service every 12–24 months ($200–$400) to preserve efficiency and warranty.
05
Body corporate approvals
Apartments and townhouses often need body corporate sign-off on outdoor unit placement. Check before booking install.
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Typical pricing
What does air conditioning installation cost in Australia?
So you know what’s fair to pay, not because cheapest is best.
Get a tighter estimate with our pricing calculatorTypical packages at a glance
Split system install, single room
$1,800–$4,500
What’s included
Reverse-cycle inverter (2.5–5kW), indoor + outdoor unit, back-to-back install, standard electrical.
When this fits
Cooling or heating a single bedroom, living area, or home office.
Multi-split (2–4 rooms, one outdoor unit)
$5,500–$11,000
What’s included
One outdoor unit driving 2–4 indoor heads. Good for townhouses and apartments with no ceiling space.
When this fits
Apartment or townhouse with distributed rooms and limited outdoor space.
Ducted reverse-cycle (3–4 bedroom home)
$9,000–$16,000
What’s included
One outdoor unit, indoor fan unit in ceiling, ductwork, 4–6 zones, controller, return air grille.
When this fits
Whole-house cooling in a single-storey with ceiling space. Cleanest aesthetic.
Ducted (large / double-storey / high spec)
$15,000–$28,000+
What’s included
Larger unit (14–20kW), more zones, My Air or similar smart controllers, roof insulation upgrade if needed.
When this fits
4+ bedroom home, high ceilings, or premium system with zone-per-room control.
Quotes well below the entry tier usually skip prep work or use lower-grade product. Quotes above the premium tier are worth asking why. Use this as a fairness check, not a bargain hunt.
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What affects your quote
What affects your quote
A few factors do most of the work. Use them to decode why two quotes for “the same job” can be hundreds apart.
Capacity (kW)
Rough rule: 1.5kW per 10–15 sqm. Insulation, glass area, and orientation modify this significantly.
Indoor vs ducted
Ducted costs 2–3x a split but cools the whole house. Better aesthetic, more installation complexity.
Electrical upgrades
Large ducted systems often need a switchboard upgrade, dedicated circuit, and sometimes a 3-phase supply. Add $1,500–$4,000 extra for that work.
Inverter vs non-inverter
Inverters cost more upfront but run 30–40% cheaper. Effectively standard now, non-inverter is legacy.
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How we vet specialists
Only specialists who meet our quality bar
We don’t list every business in your area, only the ones who pass our checks. Here’s what we look for.
Verified ABN
Every business is checked against the Australian Business Register before they can quote. Sole-trader cowboys without registration don't make the cut.
Strong review history
Listed businesses meet our review and rating bar. We don't feature unproven operators, and we audit ongoing review velocity.
Quick to respond
We monitor how quickly each business responds to quote requests. Slow responders fall down the matching order automatically.
Customer feedback after every job
Real customers rate every completed job. That signal decides who keeps showing up in your matches, and who quietly disappears.
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Brands you’ll see
Leading HVAC brands
Brand and product names you’re likely to see in quotes.
Daikin
Market leader, reliable, wide range from splits to ducted.
Mitsubishi Electric
Premium Japanese build quality, strong ducted range.
Fujitsu
Mid-to-premium, solid inverter range.
Panasonic
Mid-range, strong split system value.
Actron Air
Australian-made ducted specialist. MyAir controllers.
Samsung / Hitachi / LG
Budget-to-mid range, growing Australian presence.
Braemar / Brivis
Heating specialists (gas/ducted).
Frequently asked
Frequently asked questions
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