What Does Air Conditioning Installation Cost in Australia?
Air conditioning installation cost in Australia typically ranges from $1,500 to over $15,000 all up, depending on the type of system, the complexity of the job, and where you live. The number that applies to your home comes down to a handful of specific factors: system type, unit capacity, access difficulty, and whether your home needs additional electrical work.
The table below gives you a quick-reference starting point across the three most common system types. These are ballpark figures covering both the unit and installation labour combined.
| System Type | Typical All-Up Cost (AUD) | Notes |
|---|---|---|
| Split system (single room) | $1,500 – $3,500 | Most common, easiest to install |
| Multi-head split system | $4,000 – $9,000 | Multiple indoor units, one outdoor unit |
| Ducted system | $8,000 – $20,000+ | Whole-home solution, highest install complexity |
The sections below break down what drives those numbers for each system type, so you can get a realistic sense of what your specific job is likely to cost before you call a single installer.
Split System Installation Costs: The Full Breakdown
Split system air conditioners are by far the most common installation type in Australia, and for good reason. They're relatively affordable, straightforward to install in most homes, and available in capacities that suit everything from a small bedroom to a large open-plan living area. Understanding the cost means separating two distinct components: what you pay for the unit itself, and what you pay the installer to fit it.
A standard single-storey installation typically adds $600 to $1,200 in labour on top of the unit price. So a 2.5kW Daikin Lite (FTXF25WVMA) at $989 plus a standard install sits around $1,600 to $2,200 all up. Step up to a 5kW Mitsubishi Electric AP Series (MSZ-AP50VGKD) at $1,653, and the installed price can reach $2,500 to $3,000 depending on your installer and location.
State and city also play a role. Metro areas in Sydney and Melbourne tend to sit at the higher end of the labour range, partly due to higher tradesperson rates and partly because older housing stock often throws up complications like brick walls and limited roof access. Regional areas can be cheaper on labour but may carry a travel surcharge if qualified installers aren't local.
What's Included in a Standard Installation?
A standard split system installation quote from a licensed refrigeration mechanic typically covers the following: mounting the indoor unit on the wall, positioning and securing the outdoor unit (usually on a bracket or concrete slab), running the refrigerant pipe and electrical cable between the two units, and commissioning the system to confirm it's operating correctly. Disposal of packaging is usually included as well.
The catch is that 'standard' has a specific meaning in the trade. Most standard quotes assume a pipe run of up to three metres between the indoor and outdoor units, a straightforward wall penetration through timber or brick veneer, and an existing power point or circuit nearby. Anything outside those assumptions is typically quoted as an extra.
Common add-ons that push the final invoice higher include:
- Extended pipe runs beyond three metres (usually charged per additional metre)
- Wall penetrations through double brick or concrete, which require core drilling
- Installing a new dedicated electrical circuit from the switchboard
- Condenser bracket installation on a second-storey wall or roof
- Removal and disposal of an old unit
Always ask your installer to itemise the quote so you can see exactly what's included and what's been priced as an extra. A low headline price can climb quickly once the extras are added.
Factors That Push the Price Up
Beyond the standard scope, several variables can add meaningfully to your final installation cost. Here's what to watch for:
- Storey height and roof access. Double-storey installs require scaffolding or elevated work platforms in some cases, adding time and cost. Expect to pay $200 to $400 more than a ground-floor equivalent.
- Distance between indoor and outdoor units. Every metre of pipe run beyond the standard three metres adds roughly $50 to $100, including the extra refrigerant line, insulation, and cable.
- Wall material. Drilling through double brick or concrete takes significantly longer than timber frame and may require specialist equipment. Budget an extra $100 to $250 for masonry penetrations.
- New power circuit. If your switchboard doesn't have a spare circuit, a licensed electrician needs to install one. This alone can add $300 to $600 to the job.
- Regional location. Installers in remote or regional areas may charge a call-out or travel fee on top of their standard labour rate. This can range from $80 to $200 depending on distance.
- Existing system removal. Removing and disposing of an old unit typically adds $100 to $200 to the quote.
For a closer look at how these variables play out across different home types and states, see our guide to Split System Installation Price: What Australians Actually Pay in 2025.
Ducted Air Conditioning Installation Costs
Ducted air conditioners are a fundamentally different investment to split systems. You're not just paying for a unit and a few hours of labour. You're paying for a complete climate control system that runs through your entire home, including the central unit, a network of insulated ductwork, ceiling vents in each zone, a controller, and the labour to tie it all together. That complexity is reflected in the price.
For a smaller home with five to eight zones, expect to pay $8,000 to $15,000 all up, installed. Larger whole-home systems in bigger properties can push well past $20,000 once ductwork, zoning controls, and any ceiling modifications are factored in. These figures assume a new installation with no existing ductwork in place. Retrofitting into an established home with limited roof space can add further cost.
To put the unit cost in perspective, a Daikin 10kW ducted unit (FDYAN100) is priced at $4,017 before a single metre of duct is run or a single vent is cut. That unit cost is typically just 25 to 40 per cent of the total installed price. The rest goes to ductwork materials, ceiling vents, zoning hardware, electrical work, and installation labour, which is a multi-day job for a team of technicians.
Because every home is different, ducted installations almost always require a site inspection before a quote can be issued. The installer needs to assess roof cavity access, ceiling height, structural layout, and the most efficient duct routing for your floor plan. Be cautious of any ducted quote given over the phone without a site visit.
The higher upfront cost does come with real long-term benefits. A well-designed ducted system delivers consistent comfort across every room, eliminates the visual clutter of multiple indoor units, and is widely regarded as a positive factor in property valuations. For homeowners planning to stay long-term, the cost per year of ownership often looks more reasonable than the headline installation figure suggests.
How to Get the Best Value on Your Installation
Getting a fair price on air conditioning installation comes down to a few straightforward habits. The most important is getting at least three quotes before committing to anyone. Prices for the same job can vary by $500 to $1,500 between installers, and comparing quotes also gives you a clearer sense of what a reasonable price looks like in your area.
Make sure every installer you approach holds an ARCtick licence. This is the refrigerant-handling accreditation required by Australian law for anyone working on refrigerant circuits. It's not optional, and hiring an unlicensed operator can void your unit's warranty and create liability issues down the track. You can verify ARCtick accreditation through the Australian Refrigeration Council's online register.
One of the most effective ways Australians reduce their installation costs is by separating the unit purchase from the installation. Many installers mark up the unit price when they supply it themselves, sometimes by 15 to 30 per cent above retail. Buying your unit online from a retailer like OzAir and supplying it to your installer means you pay the installer only for their labour and materials, and you can shop around on both independently. Just confirm your installer is comfortable with a supply-only arrangement before you purchase.
Always ask whether the installer offers a workmanship warranty on top of the manufacturer's product warranty. A reputable installer will typically back their work for at least 12 months. If something goes wrong with the installation itself, such as a refrigerant leak caused by a poor joint, you want that covered without a dispute.
Timing also matters. Demand for installation peaks in November through February across most of Australia, which means longer wait times and less room to negotiate on price. Booking your install in autumn or winter, particularly for a system you plan to use for summer cooling, often means faster scheduling and more competitive quotes.
Finally, remember that installation is only one part of what you'll spend over the life of the system. Understanding how much air conditioning costs to run gives you the full picture on total cost of ownership, and can help you choose a more efficient unit upfront that pays for itself over time.
Ready to Find the Right System for Your Budget?
Air conditioning installation cost in Australia comes down to three things: the type of system you choose, the complexity of your specific job, and where you live. Split systems remain the most affordable entry point, with most single-room installs landing between $1,500 and $3,500 all up. Ducted systems deliver whole-home comfort but require a significantly larger upfront investment, typically $8,000 to $20,000 or more depending on the size of your home.
Buying your unit separately from a retailer like OzAir is one of the most practical ways to reduce your total spend. You get to compare unit prices independently, avoid installer markups, and choose the right capacity for your space without being steered toward whatever the installer happens to stock.
If you're ready to start comparing options, browse our full range of split system air conditioners to find a unit that suits your room size and budget. If ducted is on your radar, our ducted range covers systems from all the major brands. Either way, knowing your unit cost upfront puts you in a much stronger position when installer quotes start coming in.
Frequently Asked Questions
How much does it cost to install a new aircon unit?
Installation labour for a standard split system typically costs $600 to $1,200 in Australia, bringing the all-up cost (unit plus install) to roughly $1,500 to $3,500 depending on system size and complexity. Ducted systems are a different story altogether, often running $8,000 to $20,000 or more all up once you factor in the unit, ductwork, and installation. For anything beyond a straightforward single-storey install, a site inspection is the only reliable way to get an accurate quote.
What is the $5000 rule for AC?
The '$5,000 rule' is a repair-vs-replace guideline: multiply the age of your unit in years by the cost of the repair, and if the result exceeds $5,000, replacement is usually the smarter financial move. A 10-year-old unit needing a $600 repair scores 6,000 on that scale, which puts it firmly in replacement territory. It is a rule of thumb rather than a hard standard, so always get a qualified technician's assessment before making the final call.
How much does Bunnings split system installation cost?
Bunnings offers split system installation through a third-party trade network, with pricing typically starting around $750 to $1,000 for a standard single-storey install. Costs vary by location and job complexity, and the total outlay includes the unit purchased in-store. It is worth comparing the Bunnings bundle price against buying a unit from a specialist retailer and sourcing a local installer separately, as that approach can sometimes result in meaningful savings on both the unit and the labour.