Introduction: The Value of Professional Air Conditioning Installation
Australia’s climate demands efficient cooling solutions, whether you’re facing the humid summers of Brisbane, the dry heat of Perth, or the chilly winters of Melbourne. An air conditioning installation improves indoor comfort, enhances air quality, and increases property value.
But how much does it cost to install an air conditioner? The answer depends on various factors, including the type of system, home size, installation complexity, and additional electrical work. In this guide, we’ll cover installation costs across Australia, helping you make an informed decision.

Types of Air Conditioning Systems and Their Installation Costs
1. Split System Air Conditioners
Split systems are ideal for single-room cooling and are among the most affordable options for Australian homeowners. They consist of an indoor unit mounted on a wall and an outdoor compressor, offering quiet operation and energy efficiency.
Split System Air Conditioner Installation Costs
- Small (2.5kW – 3.5kW): $600 – $1,500
- Medium (5kW – 7kW): $900 – $2,500
- Large (8kW+): $1,500 – $4,000
💡 Best for: Apartments, bedrooms, home offices, and small living areas.
2. Ducted Air Conditioning Systems
Ducted systems provide whole-home cooling through vents installed in the ceiling. They are ideal for larger homes but require more complex installation.
Ducted Air Conditioning Installation Costs
- Small homes (up to 120m²): $5,000 – $9,000
- Medium homes (120m² – 200m²): $8,000 – $12,000
- Large homes (200m²+): $10,000 – $18,000
💡 Best for: Homes with multiple rooms, open-plan spaces, and luxury properties.
3. Multi-Split Air Conditioners
A multi-head split system connects multiple indoor units to a single outdoor unit. This is an excellent solution for homes that lack space for ducted air conditioning but require multi-room cooling.
Multi-Split Air Conditioner Installation Costs
- 2-room system: $2,500 – $4,500
- 3-room system: $3,500 – $6,500
- 4-room system: $5,000 – $8,000
💡 Best for: Homes needing cooling in multiple rooms without extensive ductwork.
4. Evaporative Cooling Systems
Evaporative cooling is energy-efficient and environmentally friendly, using water evaporation to cool the air. It works best in dry climates like Perth, Adelaide, and regional Victoria.
Evaporative Cooling Installation Costs
- Small home: $2,500 – $4,500
- Medium home: $3,500 – $6,500
- Large home: $5,500 – $9,000
💡 Best for: Homes in dry climates where humidity is low.
5. Window Air Conditioners
Window AC units are budget-friendly and easy to install, making them a good choice for small apartments or rental properties.
Window Air Conditioner Installation Costs
- Basic installation: $300 – $700
- Installation with electrical work: $500 – $1,500
💡 Best for: Small apartments, rental units, and budget-conscious buyers.
Additional Costs to Consider When Installing Air Conditioning
1. Electrical Upgrades
Older homes may require switchboard upgrades to support a new AC system.
💰 Cost: $500 – $2,500
2. Removal of Old Air Conditioner
If you’re replacing an old unit, removal fees may apply.
💰 Cost: $150 – $600
3. Smart Thermostat Installation
Upgrading to a smart thermostat can improve energy efficiency and allow remote temperature control.
💰 Cost: $200 – $800
4. Installation Complexity
If your home has limited space for an outdoor unit or requires custom ductwork, installation will be more expensive.
Air Conditioning Installation Costs by Location
Installation prices vary by state and city due to demand, labor costs, and climate conditions:
| Location | Typical Installation Cost | 
|---|---|
| Melbourne | $700 – $5,000 | 
| Sydney | $750 – $5,500 | 
| Brisbane | $600 – $4,500 | 
| Perth | $650 – $4,800 | 
| Adelaide | $600 – $4,200 | 
| Gold Coast | $700 – $4,700 | 
| Newcastle | $750 – $5,200 | 
💡 Prices may vary based on installer rates and house type.
How to Get the Best Deal on Air Conditioning Installation
1. Compare AC Installation Quotes
Get at least three quotes from local installers to find the best deal.
2. Install During the Off-Season
Demand for aircon installation is lower in winter and spring, so prices may be cheaper.
3. Look for Government Rebates
Check if you qualify for energy-efficient air conditioning rebates in Victoria, NSW, or Queensland.
4. Choose the Right AC Size for Your Home
An undersized unit struggles to cool your space, while an oversized unit increases energy bills.
Frequently Asked Questions (FAQs)
How much does it cost to install air conditioning in Sydney?
Air conditioning installation in Sydney costs between $750 – $5,500, depending on the type of unit, home size, and complexity of installation. Factors such as electrical upgrades, wall material, and accessibility can influence the final price. If you live in areas like Parramatta, Blacktown, or the Northern Beaches, installation prices may vary based on demand and contractor availability. To get an accurate cost, always request multiple quotes from local installers.
What is the cost of installing ducted air conditioning in Melbourne?
Ducted AC installation in Melbourne ranges from $5,000 – $18,000, depending on house size, the number of zones, and ceiling accessibility. If your home requires extensive ductwork, roof modifications, or additional vents, installation costs will be higher. Suburbs like Mornington, Dandenong, or Geelong may have different pricing due to labor costs and material availability. Opting for an energy-efficient system can also reduce long-term expenses.
How long does it take to install air conditioning?
- Split system: Typically takes 2 – 6 hours, but this depends on wall type, electrical work, and pipe length.
- Ducted system: Requires 1 – 3 days, as installers must fit ducts, vents, and a central unit.
- Multi-head system: Takes 4 – 12 hours, based on the number of indoor units and piping layout.
If additional work like removing an old system, upgrading the switchboard, or modifying walls is needed, installation time may increase. To ensure a smooth process, always clear the work area before installation.
Is it cheaper to install air conditioning in winter?
Yes! Many air conditioning companies offer discounted installation rates during winter, as demand is lower. This can save you hundreds of dollars compared to peak summer pricing. Additionally, scheduling installation in winter gives you more availability with technicians, reducing wait times. If you’re considering split system or ducted air conditioning, buying during off-peak months can also help you take advantage of seasonal promotions and rebates.
What is the cheapest air conditioner to install?
Window AC units and small split systems are the most affordable, with installation costs starting at $300 – $1,500. Window air conditioners are easy to install and don’t require professional assistance in some cases. However, split system units offer better energy efficiency and cooling performance, making them a better long-term investment. If budget is a concern, consider looking for energy rebates in your state to reduce costs further.
Does air conditioning increase property value?
Yes! A professionally installed air conditioning system can increase home value by 5%–10%, especially in warm climates where cooling is essential. Buyers prefer homes with energy-efficient air conditioning, as it provides year-round comfort and lowers electricity costs. Features like smart thermostats, zoning controls, and high-star energy ratings make a home more attractive to potential buyers. If you’re planning to sell, investing in quality air conditioning installation can give you a competitive edge in the property market.
Final Thoughts: Choosing the Right Air Conditioner for Your Home
Air conditioning installation is a long-term investment in comfort and energy efficiency. Whether you choose a split system, ducted system, or evaporative cooler, understanding the costs and factors involved helps you make a smarter purchase decision.
💡 Need expert air conditioning installation in Melbourne? Get a free AC installation quote today and enjoy year-round comfort! 🚀
 
				