How Much Does Air Conditioning Cost to Install? A Complete Australian Price Guide (2026)

What Are Aircon Installation Costs in Australia? (2026 Overview)

Aircon installation costs in Australia typically range from around $1,500 for a basic split system to well over $20,000 for a fully ducted whole-home setup. The final figure depends on three things: the type of system you choose, the layout of your home, and the installer you hire. There is no single answer, but this guide breaks it down clearly so you know exactly what to budget.

This article covers the three main cost tiers Australian homeowners face in 2026. Split systems are the most affordable and most popular option. Multi-head splits sit in the middle ground for homes needing multiple rooms cooled. Ducted systems are the premium choice for whole-home comfort, and they come with a price tag to match.

Aircon Installation Costs by System Type

Aircon installation costs vary significantly depending on the system type, with split systems starting under $2,000 fully installed and ducted systems regularly exceeding $15,000 for a medium-sized home. The table below gives a national average snapshot for 2026, covering the unit supply cost, typical labour, and the realistic total you should budget.

System Type	Unit Supply Cost (AUD)	Typical Install Labour	Total Installed Cost Range
Split System (single)	$800 – $3,500	$600 – $1,200	$1,500 – $4,500
Multi-Head Split	$2,500 – $6,000	$1,500 – $3,000	$4,000 – $9,000
Ducted System	$3,000 – $7,000+	$5,000 – $13,000+	$8,000 – $20,000+
Window / Wall Unit	$500 – $1,500	$200 – $500	$700 – $2,000

These figures are national averages. Costs in Sydney and Melbourne tend to run 10 to 20 percent higher than the national midpoint, largely due to higher labour rates and greater installer demand. Brisbane and Perth sit closer to the average, while regional areas can vary in either direction depending on how far a tradesperson needs to travel.

Split systems remain the most common choice for Australian homes by a wide margin. They are straightforward to install, available in a huge range of capacities and brands, and deliver strong value for single rooms or open-plan living areas.

Split System Installation Cost

A standard single split system installation, covering both the unit and labour, typically costs between $1,500 and $3,500 for a small-to-mid-size room. That range shifts depending on the capacity of the unit, the complexity of the install, and whether any additional electrical work is needed.

Labour alone for a straightforward split system install generally runs $600 to $1,200. This covers the installer mounting the indoor and outdoor units, running the refrigerant lines and electrical connections, pressure testing the system, and commissioning it. Jobs that require longer pipe runs, roof space access, or a new dedicated circuit will push labour costs toward the higher end.

Capacity is the biggest driver of unit cost. A 2.5kW unit is well suited to bedrooms and small rooms up to around 20 square metres. The Daikin 2.5kW Lite starts at $1,014, making it a solid entry-level option for bedrooms and small rooms. Add $600 to $900 in labour for a simple install and you are looking at a total of roughly $1,600 to $1,900 all up.

For larger open-plan living areas of 40 to 60 square metres, a 5kW to 7kW unit is the more appropriate choice. Step up to the Daikin 5kW Lite at $1,629 for open-plan living areas. With labour included, a 5kW install typically lands between $2,300 and $2,800 for a standard job. More complex installs, such as those requiring a two-storey pipe run or a new power circuit, can push that closer to $3,500.

One honest trade-off to keep in mind: the cheapest quote is not always the best value. An installer who cuts corners on pipe insulation, electrical work or refrigerant handling can cost you more in repairs and efficiency losses down the track.

Ducted Air Conditioning Installation Cost

Ducted air conditioning is the most expensive system type to install, with total costs typically ranging from $8,000 to $20,000 or more depending on the size of the home and the number of zones required. For larger homes above 250 square metres, or those with complex roof layouts, quotes above $20,000 are not unusual.

The unit itself is only one part of the bill. A Daikin 10kW ducted unit (FDYAN100) is priced from $4,017, and that's before ductwork, grilles, and labour. Once you add the full duct network, ceiling grilles for each room, a zoning controller, and the installation labour, the total cost can be two to four times the unit price alone.

The number of zones has a significant impact on cost. A basic two-zone system for a smaller home will cost considerably less than a six-zone setup covering every room in a large house. Each additional zone requires its own motorised damper, controller wiring and commissioning time. Homes without existing ductwork, or those being retrofitted rather than built new, also face higher labour costs because installers need to work through existing ceiling cavities.

Ducted systems do offer genuine advantages in return for that investment. They heat and cool the whole home from a single unit, keep every room at a consistent temperature, and are completely hidden from view. For a detailed breakdown of what drives ducted pricing, see our ducted air conditioning cost guide.

What Affects the Final Installation Price?

Air conditioning installation costs shift significantly based on five key variables: the physical complexity of the install, how far the refrigerant pipes need to run, whether new electrical work is required, whether an old unit needs removing, and the brand and model tier you choose. All refrigerant handling must be carried out by an ARC-licensed installer, so it pays to understand what drives their labour costs before you start collecting quotes.

Disposal of an old unit is a cost that catches many homeowners off guard. Most installers charge between $100 and $300 to remove and dispose of an existing system, covering the safe recovery of refrigerant and the physical removal of both the indoor and outdoor units. If you have an old system to get rid of, ask about this fee upfront so it does not appear as a surprise line item on the final invoice.

Brand and model tier also play a role in the overall budget. Premium brands like Daikin and Mitsubishi Electric typically cost more upfront than budget alternatives, but they tend to carry better energy star ratings, longer warranties and lower running costs over time. Choosing a cheaper brand to save $200 on the unit can cost more in electricity bills over a five-year period, so it is worth doing the sums before defaulting to the lowest price.

Installation Complexity and Access

The physical layout of your home is one of the biggest drivers of labour cost. A straightforward single-storey brick veneer home with easy roof space access and a short wall run is the cheapest scenario. Double-storey homes, heritage properties, homes with solid brick or concrete walls, and properties with restricted roof or wall access can add $200 to $600 to the labour bill, sometimes more.

Double-storey installs are more expensive for two reasons. First, running refrigerant pipes from an upstairs indoor unit down to an outdoor unit at ground level requires more pipe, more labour time and often more complex routing through wall cavities. Second, working at height adds time and, in some cases, requires additional safety equipment or scaffolding.

Heritage properties present their own challenges. Installers may need to avoid drilling through certain wall materials, route pipes in less direct paths to preserve the building's appearance, or use surface-mounted conduit rather than concealed runs. Each of these adds time to the job.

The position of the outdoor unit matters too, both for installation cost and for long-term performance. For a practical breakdown of where to place it, see our guide on the best place to position your outdoor unit.

Electrical and Switchboard Requirements

Larger air conditioning units often require dedicated electrical circuits, and if your switchboard cannot accommodate one, the cost of your install goes up considerably. Units above 4kW typically need a dedicated 20-amp circuit rather than sharing a general power circuit. If that circuit does not already exist, a licensed electrician needs to run one from the switchboard to the installation point.

If your switchboard is old or already at capacity, the cost increases further. A switchboard upgrade to accommodate a new circuit can add $300 to $800 to the total project cost, and in some cases more if the board needs a full replacement. This work is carried out by an electrician separately from the air conditioning installer, so it will often appear as a separate quote or invoice.

The key thing to understand is that electrical upgrade costs sit outside the installer's standard quote. Many homeowners receive an installation quote, accept it, and then discover the electrical work is an additional cost they had not budgeted for. Ask your installer directly whether a new circuit or switchboard upgrade will be needed before you commit, and factor that figure into your total budget from the start.

How to Keep Your Aircon Installation Costs Down

There are several practical ways to reduce your total air conditioning installation cost without compromising on quality or safety. The most effective strategies involve separating the cost of the unit from the cost of labour, planning the install location carefully, and timing your booking to avoid peak demand periods.

The single biggest saving most homeowners can make is buying the unit themselves rather than letting the installer supply it. Installers typically mark up the unit cost by 15 to 30 percent. Purchasing directly from an online retailer like Oz Air Online and supplying the unit to your installer means you pay trade-close prices for the hardware and a fair labour rate for the installation. You can browse our range of split system air conditioners to compare models and prices before you start getting labour quotes.

Beyond that, here are five practical steps to keep costs under control:

1. Get at least three quotes from licensed installers. Labour rates vary more than most people expect. Three quotes give you a realistic sense of the market rate for your specific job and help you identify any outliers on either end.
2. Choose a straightforward installation location. The closer the indoor unit is to an exterior wall, and the shorter the pipe run to the outdoor unit, the lower the labour cost. A standard install assumes a three to four metre pipe run. Every additional metre adds to the bill, so positioning matters.
3. Book in autumn or winter. Demand for air conditioning installers peaks in spring and early summer. Booking in the cooler months often means faster availability and, with some installers, lower rates. You also avoid the frustration of waiting weeks for an appointment when the heat arrives.
4. Check state government rebates and incentives. Several Australian states offer energy efficiency rebates or interest-free finance for high-star-rated systems. Schemes change regularly, so check your state government's energy website before you buy to see what is currently available in 2026.
5. Do not go too cheap on labour. A quote that is significantly below the others is a warning sign, not a bargain. Poor installation, including inadequate pipe insulation, incorrect refrigerant charge or sloppy electrical work, leads to reduced efficiency, more frequent breakdowns and a shorter system lifespan. The labour cost is not the place to cut corners.

Ready to Install? Here's How to Get Started

Split system installs typically cost $1,500 to $3,500 all in, while ducted systems run from $8,000 to well over $20,000 for larger homes. The biggest variables are installation complexity, pipe run length and electrical requirements. Get those three factors clear before you start collecting quotes and you will be in a much stronger position to compare them accurately.

Before you contact any installers, make sure you have the right size unit for your space. Buying too small means the system runs constantly and never quite keeps up. Buying too large wastes money upfront and can cause humidity problems. Our what size air conditioner do I need guide is the best place to start before you commit to a model.

Once you know the right capacity, browse the range at Oz Air Online to lock in your unit at a competitive price, then get at least three quotes from licensed installers for the labour. That combination gives you the best chance of a quality install at a fair total cost.

Frequently Asked Questions

How much does it cost to get a new aircon installed?

Getting a new aircon installed typically costs between $1,500 and $3,500 for a standard split system in a bedroom or living area, covering the unit, labour and materials. Ducted systems are a much larger investment, running anywhere from $8,000 to $20,000 or more depending on home size. The final price shifts based on system type, capacity and how complex the installation is.

What is the $5000 rule for AC?

The $5,000 rule says that if repairing your existing air conditioner will cost more than $5,000, you are generally better off replacing the unit entirely rather than paying for the repair. It is a rule of thumb rather than a hard standard, so the age of the unit and its energy efficiency rating should also factor into your decision. An older, inefficient system that needs a $3,000 repair may still be worth replacing. If you are weighing up your options, our guide to repairing or replacing your air conditioner walks through the full decision.

How much does it cost to have an aircon installed?

Labour for a standard split system installation runs $600 to $1,200, with the total cost including the unit, labour and materials landing between $1,500 and $3,500 for most homes. More complex jobs such as double-storey homes, long pipe runs or switchboard upgrades can push the total higher. Always get at least three quotes from ARC-licensed installers before committing.

How much does Bunnings charge to install an air conditioner?

Bunnings offers air conditioner installation through its trade services network, with prices typically starting around $600 to $800 for a basic split system install, though the total cost including the unit will be higher. Bunnings installations are carried out by third-party licensed tradespeople rather than Bunnings staff directly. Buying your unit separately online and supplying it to a local installer is often a more cost-effective approach, as you can shop around for the best unit price independently of the installation quote.