Air Conditioning Cost Australia 2026
From split systems to ducted whole-home cooling, air conditioning installation costs depend on system type, size, and your home's requirements.
| City | Typical range | Year on year |
|---|---|---|
| Sydney | $1,250–$4,725 | ↑ +4.1% |
| Melbourne | $1,250–$4,725 | ↑ +3.9% |
| Brisbane | $1,200–$5,500 | ↑ +4.2% |
| Perth | $1,250–$4,725 | ↑ +3.5% |
| Adelaide | $1,100–$4,150 | ↑ +4.6% |
| Gold Coast | $1,175–$4,400 | ↑ +4.2% |
| Canberra | $1,325–$4,950 | ↑ +4.0% |
| Hobart | $1,075–$4,050 | ↑ +4.0% |
| Darwin | $1,200–$4,500 | ↑ +4.0% |
| Newcastle | $1,150–$4,275 | ↑ +4.1% |
| Geelong | $1,125–$4,175 | ↑ +3.9% |
| Sunshine Coast | $1,175–$4,375 | ↑ +4.2% |
| Townsville | $1,300–$4,850 | ↑ +4.2% |
| Wollongong | $1,300–$4,850 | ↑ +4.1% |
| Byron Bay | $1,250–$4,725 | ↑ +4.1% |
Choose Your City
National Pricing Overview
| Service | Low | Typical | High |
|---|---|---|---|
| Split system 2.5 kW (supply + install) | $1,200installed | $1,800 | $2,500 |
| Split system 5 kW (supply + install) | $1,800installed | $2,500 | $3,500 |
| Split system 7 kW (supply + install) | $2,200installed | $3,200 | $4,500 |
| Split system 9 kW (supply + install) | $3,000installed | $4,200 | $5,500 |
| Multi-split system (2 heads) | $4,000installed | $5,500 | $7,500 |
| Multi-split system (4 heads) | $7,000installed | $8,500 | $12,000 |
| Ducted system (basic) | $8,000installed | $11,000 | $14,000 |
| Ducted system (premium/zoned) | $12,000installed | $16,000 | $22,000 |
| AC service / clean | $100per unit | $200 | $320 |
| Ducted system service (per system) | $200per unit | $330 | $550 |
| AC repair (minor) | $150per job | $300 | $500 |
| AC repair (major / regas) | $300per job | $600 | $1,200 |
| Removal & disposal | $100per unit | $200 | $350 |
| Split system changeover (like-for-like, incl. old unit removal) | $1,500installed | $2,100 | $3,000 |
| Split system 3.5 kW (supply + install) | $1,400installed | $2,100 | $2,800 |
| Split system install only (customer-supplied unit) | $700installed | $950 | $1,500 |
| Ducted heating ductwork replacement (whole house, supply + install) | $1,900installed | $3,600 | $6,000 |
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Air conditioning installation in Australia costs $1,200–$2,500 for a small 2.5 kW split system, $1,800–$3,500 for a 5 kW unit (the most popular size for living rooms), and $2,200–$4,500 for a large 7 kW system. Ducted whole-home systems cost $8,000–$22,000 installed.
We've compiled pricing from HVAC installers across Australia as of October 2026. All prices include supply, installation, and GST.
Air Conditioning Types Compared: Split, Ducted, and Multi-Split
The type of air conditioning system you choose has the biggest impact on installation cost. Here's how the main system types compare for Australian homes:
| System Type | Supply + Install Cost | Best For | Running Cost (annual est.) |
|---|---|---|---|
| Single split system (2.5 kW) | $1,200–$2,500 | Single bedroom or small room | $100–$200 |
| Single split system (5 kW) | $1,800–$3,500 | Living room, open-plan area (25–35m²) | $200–$350 |
| Single split system (7–8 kW) | $2,200–$4,500 | Large open-plan living (35–55m²) | $300–$500 |
| Multi-split system (2–5 heads) | $4,000–$12,000 | Multiple rooms, one outdoor unit | $400–$800 |
| Ducted system (small home) | $8,000–$14,000 | 2–3 bedroom home, single storey | $500–$900 |
| Ducted system (medium home) | $12,000–$20,000 | 3–4 bedroom home | $700–$1,200 |
| Ducted system (large home) | $18,000–$22,000 | 4+ bedroom, two storey, zoned | $1,000–$1,800 |
| Evaporative cooling (ducted) | $4,000–$8,000 | Dry climates only (VIC, SA, WA) | $100–$300 |
| Portable unit | $400–$1,000 | Temporary or rental — no installation | $200–$400 |
Split systems are the most popular choice in Australia — they're affordable, efficient, and can be installed in a day. Ducted systems cost significantly more upfront but provide whole-home comfort with a cleaner aesthetic (no wall units). Evaporative cooling is the cheapest to run but only works effectively in dry climates — it's common in Melbourne, Adelaide, and Perth but not suitable for Brisbane or Sydney's humidity.
Split System vs Ducted: Which Should You Choose?
This is the most common decision homeowners face. The right choice depends on your home, budget, and how many rooms you want to cool.
| Factor | Split Systems | Ducted System |
|---|---|---|
| Upfront cost (3-bed home) | $4,500–$10,000 (3 units) | $12,000–$20,000 |
| Running cost | Lower — only run the rooms you need | Higher — but zoning helps |
| Aesthetics | Wall-mounted units visible in each room | Discreet vents in ceiling, no wall units |
| Installation disruption | 1 day per unit, minimal disruption | 2–5 days, requires roof space access |
| Flexibility | Add units room by room over time | Whole-home system installed at once |
| Resale value | Moderate — expected in most homes | Higher — seen as a premium feature |
| Best for | Apartments, smaller homes, budget-conscious | Larger homes, new builds, full comfort |
If you're building a new home or doing a major renovation, ducted is usually the smarter long-term investment — the ductwork is much easier (and cheaper) to install during construction. For existing homes, split systems are typically more practical unless you have good roof cavity access. Multi-split systems offer a middle ground: one outdoor unit powering 2–5 indoor heads, with costs between $4,000–$14,000.
Air Conditioning Running Costs: What You'll Actually Pay
Installation cost is only half the picture — running costs over a system's 10–15 year lifespan often exceed the purchase price. Here's what different systems cost to run based on typical Australian electricity rates (30c/kWh):
| System | Cooling Capacity | Typical Usage | Annual Running Cost |
|---|---|---|---|
| Small split (2.5 kW, high efficiency) | 1 room | 6 hrs/day, 4 months | $100–$180 |
| Medium split (5 kW) | 1 large room | 8 hrs/day, 4 months | $200–$350 |
| Large split (7 kW) | Open-plan area | 8 hrs/day, 4 months | $300–$500 |
| 3x split systems | 3-bed home | 6–8 hrs/day, 4 months | $500–$900 |
| Ducted (zoned, 12–14 kW) | Whole home | 8 hrs/day, 4 months | $700–$1,200 |
| Evaporative (ducted) | Whole home | 10 hrs/day, 4 months | $100–$300 |
The energy efficiency rating (stars) makes a huge difference to running costs. A 5-star split system uses 25–40% less electricity than a 2-star model of the same capacity. Inverter technology — now standard on most units — also reduces running costs by adjusting compressor speed rather than cycling on and off. Setting your thermostat to 24–25°C rather than 20°C can cut running costs by 30%.
What Affects Air Conditioning Costs in Australia
System size (kW)
A bedroom needs 2.5 kW ($1,200–$2,500 in Australia), a living room 5–7 kW ($1,800–$4,500). Oversizing wastes energy; undersizing means the unit runs constantly. Get a proper sizing assessment.
Split vs ducted
Split systems ($1,200–$4,500) cool individual rooms. Ducted systems ($8,000–$22,000) cool the whole house through ceiling vents — more expensive but more discreet and effective for larger Australian homes.
Installation complexity
Back-to-back installs (indoor and outdoor units share a wall) are cheapest. Long pipe runs, multi-storey homes, and restricted access in Australian properties increase labour costs.
Brand & efficiency
Premium brands (Daikin, Mitsubishi Electric) cost more than budget brands (Kelvinator, TCL) but offer better efficiency, quieter operation, and longer warranties.
Electrical requirements
Most split systems need a dedicated power circuit. If your switchboard is full or needs upgrading, that electrical work is extra — ask for it to be priced on the quote.
Season & demand
Summer is peak season for Australian aircon installs — expect longer wait times and sometimes higher prices. Book in autumn or winter for the best availability.
How to Save Money on Air Conditioning Cost in Australia
Frequently Asked Questions — Air Conditioning Cost in Australia
About This Guide
Our air conditioning cost guides cover 14 major Australian cities with location-adjusted pricing. Updated monthly — last reviewed October 2026.
From the Homeowner Hub
HVAC Cost in Australia — What You Need to Know
In Australia, what Americans call "HVAC" is typically called ducted air conditioning or reverse-cycle air conditioning. The term HVAC (Heating, Ventilation and Air Conditioning) is used in commercial settings but less commonly in Australian residential contexts.
Residential HVAC (ducted system) cost: $8,000–$22,000 installed for a full home. Room-by-room HVAC (split system) cost: $1,200–$4,500 per unit installed. HVAC service/maintenance: $200–$550/year for ducted, $100–$320 for split system service.
HVAC estimates in Australia are typically provided free by licensed installers. A site inspection is recommended for ducted systems to assess ductwork routing, insulation requirements, and system sizing for your home's floor plan.