Air Conditioner Installation Cost in Australia(Your Price Guide for 2025)

Last updated on June 6, 2025

Key Takeaways

✅ Air conditioner installation costs in Australia for 2025 vary based on space size, system type, and seasonal demand.

✅ Split system costs range from $1,299 to $3,999, depending on capacity:
– 2.5-2.6 kW units (10-20 m²): $1,299-$1,599
– 3.5 kW units (20-30 m²): $1,699-$1,949
– 5.0 kW units (30-45 m²): $2,099-$2,399
– 6.3-7.2 kW units (45-65 m²): $2,499-$2,899
– 8.0-9.5 kW units (65+ m²): $3,199-$3,999

✅ Ducted system costs range from $4,500 to $7,500:
– 7 kW units: $4,500-$5,000
– 10 kW units: $5,000-$6,000
– 12.5 kW units: $5,750-$6,500
– 14 kW units: $6,700-$7,000
– 17 kW units: $7,000-$7,500

✅ Additional installation costs may include:
– Extra piping: $80 per meter
– Extra cabling: $14-$30 per meter
– Wall brackets: $90 each
– Double-storey installation: $205 extra
– Roof brackets: $315 each
– WiFi kit installation: $349

✅ Cost-saving tips include:
– Selecting the correct unit capacity
– Getting multiple quotes
– Choosing energy-efficient models
– Installing during off-peak seasons
– Utilising government rebates and incentives

✅ Financial planning options include long-term savings, instalment plans, and government rebates for energy-efficient models.

Get a government-rebated energy-efficient air conditioner (supply+install). Get a FREE quote.

Understanding the Factors Influencing Air Conditioner Installation Costs in 2025

When considering an air conditioning installation in 2025, it’s essential to understand the factors influencing its overall cost. The initial price tag can vary significantly based on several key elements.

Firstly, the size of your space plays a vital role; larger areas require more powerful units, which naturally increases the air conditioner installation costs.

Secondly, the type of air conditioning system that you decide on is also a critical factor that will affect your budget. It may be split systems or ducted systems.

Each system has its own pricing structure and installation requirements.

Additionally, installing these systems involves various degrees of complexity, which can impact cost.

Thirdly, government rebates are available for various air conditioners in the residential, small business, and commercial categories.

It would help to take advantage of these opportunities once all the requirements are met.

Also, seasonal demands can lead to fluctuations in prices. During peak summer months, when everyone is seeking relief from the heat, installation costs may rise due to increased demand for skilled technicians.

Remember ongoing maintenance and energy efficiency ratings when budgeting for your air conditioning system. Going for eco-friendly air conditioners will help reduce acquisition costs.

These factors will affect long-term costs and comfort levels within your home. This guide presents information about these variables so that you can make informed decisions that ensure both comfort and value in your home or office for years to come.

Split System Air Conditioner Installation Cost

Split air conditioning systems are decentralised. Each has outdoor and indoor units. Split air conditioning units can be used in small buildings and apartments.

There is a range of options to suit every need and budget. Whether you’re cooling a cosy apartment or a sprawling home, there’s a unit that suits your needs. So, let’s break it down!

First up are the smaller units, which are perfect for those snug spaces or if you’re just looking to cool a single room that has a size within the range of 10 m2 to 20 m2.

These include 2.5 kW and 2.6 kW units from different manufacturers. The 2.5 kW unit has an average cost of $1,599 while for cold climates, government rebates can bring the cost to as low as $1,499.

The 2.6kW unit is slightly more powerful at a similar price; it is priced at $1,399, with deals that may drop to $1,299 for cold regions.

Moving up the scale, we have the mid-range units, which are ideal for medium-sized rooms or open-plan living areas. The common types are the 3.5 kW and 5.0 kW units.

The 3.5 kW units are a popular choice that is used to cool spaces with sizes in the range of 20 m2 to 30 m2.

The prices start at $1,949, but you might find them on sale for $1,899. Alternatively, there’s another model for $1,799, which sometimes goes for $1,699.

5.0 kW Units are perfect for larger spaces of about 30 m2 to 45 m2 in size. These units are priced at $2,399, but you can find them for $2,299 based on rebates. There’s also a slightly cheaper model at $2,199, with discounts bringing it down to $2,099.

For those with bigger spaces or a penchant for serious cooling power, the larger units are where it’s at. Some common sizes are:

The 6.3 kW Units, which are great for bigger rooms, are priced at $2,799, but with rebates, the cost can be reduced to $2,599.
7.1 kW and 7.2 kW Units are used to cool spaces that are 45 m2 to 65 m2 in size. These are powerhouses for larger areas, with the 7.1 kW model priced at $2,899, dropping to $2,699 on rebate. The 7.2 kW unit is a bit more elusive, priced at $2,499, though discounts aren’t always available.
For those who need serious cooling for the same space as the previous one, the 8.0 kW units are ideal. These units are priced at $3,299, with some discounts bringing them down to $3,199.
The 9.5 kW Units are meant to cool spaces that are larger than 65 m2, like large homes or commercial spaces. It is priced at $3,999, but you might find it for $3,799 depending on your location.

Featured Government Rebate Split System Air Conditioners Prices. The prices listed include both supply and installation costs. (Click here for more details)

SIZES	AVERAGE	COLD
2.5kW	$1,599	$1,499
3.5kW	$1,949	$1,899
5.0kW	$2,399	$2,299
6.3kW	$2,799	$2,599
7.1kW	$2,899	$2,699
8.0kW	$3,299	$3,199
9.5kW	$3,999	$3,799

2.6kW	$1,399	$1,299
3.5kW	$1,799	$1,699
5.0kW	$2,199	$2,099
7.2kW	$2,499	N/A

Ducted Air Conditioner Installation Cost

Ducted air conditioning systems are a fantastic investment for several reasons. They provide even temperature control throughout your home, are centralised, generally quieter than split systems, and can be more aesthetically pleasing since the main unit is hidden away.

Plus, they can add value to your property. Ducted systems are the ultimate way to maintain a consistent temperature throughout your entire house, offering seamless comfort with just the touch of a button.

Let’s explore the different sizes and costs of these systems to help you find the perfect fit for your needs.

Featured Government Rebated Ducted Air Conditioners Prices. The prices listed include both supply and installation costs. (Click here for more details)

SIZES	AVERAGE	COLD
7kW	$5,000	$4,500
10kW	$6,000	$5,000
12.5kW	$6,500	$5,750
14kW	$7,000	$6,700
17kW	$7,500	$7,000

The Range of Ducted Air Conditioning Options

Ducted air conditioning units come in various sizes, each suited for different space requirements and cooling needs. Here’s a breakdown of what’s available:

7 kW Units

These are great for smaller homes or apartments. The average cost is around $5,000, but if you’re in the cold region of Sydney, you might find it for as low as $4,500. It’s a fantastic choice if you’re looking to cool a modest space without breaking the bank.

10 kW Units

They are ideal for medium-sized homes; these units offer more power and efficiency. The average price is about $6,000, but in cold regions, you can find deals for around $5,000. This size strikes a nice balance between power and cost.

12.5 kW Units

For larger homes, a 12.5 kW unit provides ample cooling capacity. These are typically priced at $6,500, with some deals dropping the price to $5,750 based on rebates. It’s a solid choice for those with more space to cool.

14 kW Units

If you’re looking to cool a large home or have specific cooling needs, a 14 kW unit might be the way to go. These are priced at $7,000, with discounts sometimes bringing the cost down to $6,700. It’s a powerhouse option for serious cooling.

17 kW Units

These are the big guns of ducted air conditioning. 17kW units are perfect for very large homes or commercial spaces. The average cost is $7,500, but you might find them for $7,000 if you are located in the cold region of Sydney. This is the ultimate choice for those who need maximum cooling power.

Additional Expenses to Consider Beyond the Installation Cost

There are additional charges associated with air conditioning installation, all of which include GST. Here’s a detailed explanation of the costs:

An extra pipe is charged at $80 for each additional meter required for the installation. The extra cable comes at $14 per additional meter. When conduit is needed, including the cable, it costs $30 per meter. Wall brackets are priced at $90 each, and for double-storey buildings, an additional $205 is charged for the installation.
If roof brackets are required, they are priced at $315 each. For any penetrations through double brick walls, the cost is $90 per penetration. A circuit breaker enclosure, if needed, will cost $45, while an isolation switch is priced at $100.
If the installation requires a side exit, there’s an extra charge of $120. Replacing an existing air conditioning unit involves a decommissioning fee of $140, which includes removing the old unit. The use of poly slabs or PVC feet during installation comes with a $70 charge.
If the customer is unavailable or fails to provide access, there is a $99 no-show or no-access fee. In cases where the installer has to return on another day, an additional site visit fee of $99 is applied. The installation of a WiFi kit costs $349, and installing an additional circuit also costs $349.

Tips for Reducing Your Air Conditioning System Installation Costs

Getting the best value when installing either a split or ducted air conditioning system can be achieved by using the following steps:

✅ The first thing is to select the correct air conditioning unit capacity. This step requires some technicalities that may require the services of a consultant or technician to help with the selection. Cooling load calculations will be performed to execute this task successfully.

If a lower-capacity unit is selected, it will struggle to meet the required cooling and thus incur further upgrading or replacement costs in the future. A higher capacity unit will simply cost more to install.

✅ Do not rely on one installer. Quotations should be obtained from various installers so as to know the most cost-effective options. While you should not just focus on the installation prices, your preferred installer should also have effective after-sales services.

✅ Air conditioning systems have high capacity and thus high energy demands. They will add substantial overhead to your energy bills. Energy-efficient units should be preferred because they will help with savings on your energy bills over time, even if they cost more in the market.

✅ Make sure you read and understand the terms and details of the air conditioning unit’s warranty. You should be satisfied that more expenses will not be incurred if the unit develops a major fault in the first few years of purchase.

✅ The demand for air conditioning systems is lowest during winter or in cold climates/regions. Try to schedule your installation for periods of low demand.

Financial Planning for Air Conditioner Installation

Due to the significant cost implication of installing air conditioning systems, it is essential to have a concrete financial plan that will ensure a smooth purchase and not overblow your budget.

After determining the initial cost of the selected air conditioning system, additional expenses such as electrical wiring, fittings, ductwork, permits, and workmanship should also be factored into the budget. The estimated cost should then be compared with the funds available.

The components of the budget should be carefully reviewed until an affordable cost of investment is attained.

Sometimes the cost of installation may still be too high to be funded. In this case, you should take advantage of the offerings provided by installers and government incentives that may help in lowering costs or paying in instalments. Some common options are the long-term savings, instalments and government rebates.

Long-Term Savings

Create a financial plan that will span a couple of months or years. While this option does not provide an immediate solution, it helps you to achieve the installation of your air conditioning unit in a proactive manner. You can conveniently complete your installation at the desired target time.

Pay in Instalments

If you are looking to install the air conditioning unit without delay, there are installers that offer payment in instalments over a period of time, such as 12 to 46 months. While the total cost may be way above your estimate, it is a convenient option that makes you pay low and often insignificant amounts every month.

Government Rebates

Rebates are available for all properties in NSW, but the amount varies depending on the location and type of facility, which may be residential, small business or commercial. The discount for cold regions and energy-efficient air conditioning system models offers higher rebates.

The amounts and terms of rebates are clearly stated in the installers’ documentation.

MASSIVE GOVERNMENT REBATES + EXCLUSIVE BONUSES WITH AIR CONDITIONING INSTALLATIONS

Beat the Heat AND Save Big This Summer!

The Australian Government is giving you UP TO $500 CASH BACK on energy-efficient air conditioners – but these incredible offers won’t last forever!

MITSUBISHI HEAVY INDUSTRIES MEGA DEAL

GET UP TO $500 CASH BACK on premium Mitsubishi Heavy Industries air conditioning systems

BONUS: WIN 1 of 3 Luxury Wellness Retreats in Beautiful Bali!

Purchase Period: June 1 – August 31, 2025
Final Claim Deadline: September 21, 2025 (11:59 PM AEST)
Imagine cooling your home AND potentially relaxing in a Balinese paradise!

RINNAI SUMMER SPECIAL

UP TO $500 CASH BACK on Rinnai’s industry-leading air conditioning solutions

Purchase Period: May 15 – July 31, 2025
Final Claim Deadline: May 15 – August 31, 2025

Why Choose Government Rebated Air Conditioners?

✅ Instant Savings – Get money back from the government
✅ Premium Brands – Mitsubishi Heavy Industries & Rinnai quality
✅ Energy Efficient – Lower electricity bills year-round
✅ Professional Installation – Expert setup included
✅ Extended Warranties – Peace of mind protection

LIMITED TIME OPPORTUNITY

These government rebates are designed to help Australian families stay cool while saving money on energy-efficient cooling solutions. But with strict deadlines approaching, you need to act NOW!

Don’t Miss Out:

Rebate funds are limited
Purchase periods are closing soon
Professional installation books up quickly in summer

Ready to Save Big? Contact Us Today!

Call Now for a FREE Quote & Rebate Information
Live Chat Available
Email for Instant Rebate Calculator

Transform your home comfort while the government pays you back – it’s a win-win opportunity that won’t last!

Conclusion

With the information provided in this guide, you should get more savings on your air conditioning installation costs in 2025. Informed decisions on installations can be made based on pricing, capacity, room or office space, model and additional costs.

Strategic planning, such as installing during periods of low demand and comparing multiple quotes, can help achieve the lowest costs. In addition, financial planning, such as long-term savings and paying in instalments and rebates, can ease the burden on your budget.