Air conditioning installation in Brisbane usually costs between $1,000 and $4,000 for a supply-and-install split system, with most single-room jobs landing around $1,800 to $2,500. Whole-home ducted systems are a bigger project and generally start near $7,500 and can pass $20,000 on larger homes. The final price depends on the type and size of the system, how tricky the install is, and whether your home needs any electrical upgrades.
At SolusAir, we install air conditioning across Brisbane every week, and the biggest driver of cost is the type of system you choose. In our experience, most single-room split installs land between $1,800 and $2,500, while a ducted system that cools the whole house sits at the top of the range. Below we break down the typical Brisbane price ranges by system type, explain what goes into a quote, and show you how to compare offers so you know exactly what you are paying for.
Brisbane air conditioning installation cost at a glance
Here are the typical supply-and-install ranges we see for standard “back-to-back” installations in Brisbane, where the indoor and outdoor units sit close together on the same wall. Prices include both the equipment and the labour.
| System type | Typical installed cost (Brisbane) | Best suited to |
| Split system, ~2.5 kW | $1,000 to $1,900 | A single small room or bedroom |
| Split system, ~5 kW | $1,500 to $2,500 | A living area or large bedroom |
| Multi-split (2 to 5 heads) | $3,000 to $8,000 | Several rooms from one outdoor unit |
| Ducted, whole-home | $7,500 to $20,000+ | Cooling the entire house |
These ranges cover a straightforward install. Homes that need long pipe runs, extra electrical work, or difficult roof access will sit toward the higher end. The sections below explain why.
How much does it cost to install a split system in Brisbane?
A single split system is the most affordable way to cool one room, and it is the most common choice in Brisbane. A small unit around 2.5 kW, suited to a bedroom, typically costs $1,000 to $1,900 supplied and installed. A larger 5 kW unit for a living area usually runs $1,500 to $2,500.
The equipment itself is only part of the bill. According to the consumer group CHOICE, installation fees for a standard split system commonly range from $600 to $800 or more, depending on the job. A basic back-to-back install where the two units sit close together keeps labour hours low and the price down.
How much does a multi-split system cost to install?
A multi-split system connects two to five indoor heads to a single outdoor compressor. It suits homes that want to cool several rooms without the cost or ceiling space of full ducting. In Brisbane, a multi-split install generally costs $3,000 to $8,000, depending on the number of indoor heads and the length of pipework between them.
Multi-splits cost more per room than a single split, but they use one outdoor unit instead of several. That saves wall space and can be tidier on smaller blocks where there is limited room for multiple compressors.
How much does ducted air conditioning cost to install in Brisbane?
Ducted air conditioning is the most expensive option because it cools the whole home through a network of ducts and vents hidden in the roof space. A ducted system in Brisbane typically starts around $7,500 and can exceed $20,000 for larger homes or higher-capacity units. The equipment alone often accounts for $8,000 to $15,000 of that figure, with installation adding several thousand more.
Ducted installs take longer and involve more trades, since the ductwork, vents, and controller all need to be fitted through the ceiling. Older Brisbane homes with limited roof space can be more complex again. Once installed, a ducted system also benefits from occasional ducted system cleaning to keep airflow and air quality where they should be.
Split system vs ducted: which costs less to run and install?
For most Brisbane households the choice comes down to how many rooms you need to cool and your budget. This table compares the two at a glance.
| Feature | Split system | Ducted system |
| Typical install cost | $1,000 to $2,500 per room | $7,500 to $20,000+ whole home |
| Rooms cooled | One per indoor unit | Entire home |
| Install time | Often a few hours | One to several days |
| Best for | Bedrooms, living areas, budgets | Whole-house comfort, new builds, renovations |
A split system is cheaper to install and lets you cool only the rooms you use. A ducted system costs more upfront but delivers even, whole-home cooling from a single controller. If you only need to cool one or two rooms, a split almost always makes more financial sense.
What is included in an air conditioning installation quote?
A complete Brisbane installation quote should cover both the equipment and every part of the labour to get it running. When you compare quotes, check that each one includes:
- The air conditioner unit itself, including GST
- Standard installation labour and mounting hardware
- Refrigerant pipework, drainage, and electrical connection for a back-to-back setup
- Testing, commissioning, and removal of packaging
- The workmanship warranty and the manufacturer’s parts warranty
Anything beyond a standard back-to-back install, such as long pipe runs or a new electrical circuit, is usually quoted as an extra. A quote that looks unusually cheap often leaves these items out, which is why the cheapest number is not always the lowest final cost.
What factors affect the cost of air conditioning installation?
Two homes on the same street can receive different quotes for the same unit. These are the factors that move the price up or down.
System type and size. A higher kilowatt rating or a multi-head setup costs more in both equipment and labour. Correctly sizing the unit to the room matters, because an undersized system runs constantly and an oversized one wastes money.
Installation complexity. The distance between the indoor and outdoor units, the unit height, the roof type, and the length of the refrigerant pipe run all add labour time. Long pipe runs, tight ceiling cavities, and multi-storey homes drive the cost up.
Required electrical upgrades. Adding a dedicated circuit, a safety switch, or a condensate drain adds to the bill. Many older Brisbane houses need an electrical upgrade before a new system can be connected, which brings extra electrician labour into the job.
Labour rates and timing. Rates are higher in the city than in regional areas, and demand peaks in mid-summer. Booking ahead of the December to February rush can sometimes save money, since installers are less stretched.
Extras and warranties. Wi-Fi controllers, upgraded filters, and longer warranty or service agreements all add to the total. These are worth weighing against the comfort and peace of mind they deliver.
Why Brisbane installation costs differ from other cities
Brisbane’s humid subtropical climate makes air conditioning close to essential, and that shapes the local market. The city’s average daily maximum sits close to 27°C across the year, and the hottest days push into the high 30s, according to the Bureau of Meteorology, so units here work hard for much of the year. We usually advise homeowners to prioritise cooling capacity and energy efficiency over heating performance when sizing a system for Brisbane.
Housing stock also plays a part. Many Brisbane homes are older timber Queenslanders or post-war builds with limited ceiling space, which can complicate ducted installs and add labour. Across the city we see split systems make up roughly 70 percent of installs because they are quicker and cheaper, while ducted systems account for around 30 percent in larger homes that want whole-house cooling. If you are moving away from old gas heating, a gas to reverse-cycle conversion is another path that changes the scope and cost of the work.
Are there rebates for air conditioning installation in Brisbane?
Rebates and incentives change often, so it is worth checking what is current before you buy. For several years, South East Queensland households could claim the Energex PeakSmart cashback, which paid $200 for a 4 kW to under 10 kW system and $400 for units of 10 kW or more when a PeakSmart-enabled air conditioner was installed. That program closed to new customers at the end of 2025, so it is no longer available for new installs.
Because incentives come and go, we recommend confirming any current government or energy provider offers at the time of your quote. When a rebate is available for a qualifying unit, it lowers the net cost of an eligible new system.
How to get an accurate air conditioning installation quote
The most reliable way to know what your install will cost is to get a written, itemised quote from a licensed installer after they have assessed your home. We recommend three steps.
First, get at least three quotes so you can compare like for like. Second, make sure each quote is itemised, so you can see the unit price, GST, labour, and warranty rather than a single lump sum. Third, confirm the installer is properly licensed. In Queensland, connecting an air conditioner is electrical work, and the installer needs the correct electrical work licence to do it legally and safely.
Our own approach at SolusAir is to measure your rooms, windows, and ceilings before we quote, then present three clear options at different price points so you can choose the one that fits your budget. Because the quote is the invoice, you see a fixed price before any work begins, and our installs come with a five-year workmanship warranty on top of the manufacturer’s parts warranty. You can read more about our process on our air conditioning installation page, or learn about our team and how we work.
Frequently asked questions
How long does air conditioning installation take?
A standard back-to-back split system is often installed in a few hours. A multi-split or ducted system usually takes one to several days, depending on the number of heads or the size of the ductwork.
Do I need an electrician to install air conditioning in Queensland?
Yes. Connecting an air conditioner is classed as electrical work in Queensland, so the person doing the wiring must hold a valid electrical work licence. A refrigerant handling licence alone does not cover the electrical connection.
Is it cheaper to install air conditioning in winter?
Often, yes. Demand peaks in mid-summer, so booking in the cooler months can mean better availability and, at times, lower prices before the busy December to February period.
Is a split system or ducted system cheaper?
A split system is cheaper to install, usually $1,000 to $2,500 per room. Ducted air conditioning costs more upfront, starting around $7,500, but cools the whole home from one system.
How often should an air conditioner be serviced?
We recommend a professional service once a year to keep the system running efficiently and to catch small faults early. Regular air conditioning servicing also helps protect the manufacturer’s warranty and extends the life of the unit.
Get a fixed-price quote for your Brisbane install
If you are ready to know exactly what your installation will cost, get in touch with our Brisbane team for a fixed-price quote with no hidden fees. We will assess your home, size the system correctly, and give you the price before any work starts.
