Air Conditioning Installation Cost in Perth (2026)
Perth's dry heat makes evaporative cooling a genuine option, and its double-brick walls make ducting the hard part.
Your air conditioning installation details
Running cost depends on usage, these are typical annual figures.
Your estimate sits within the typical range.
Where the money goes
Estimated breakdown for your configuration
💰 Ways to save
- A split system for one or two rooms is far cheaper than ducted.
- Install in shoulder season (autumn/spring) for off-peak installer rates.
How we estimate this
Air conditioning installation in Australia in 2026 typically costs $600–$1,200 for a single split system, $2,500–$6,000 for multi-split, and $7,000–$20,000 for ducted, including the unit and standard install.
Pricing reviewed: June 2026.
What a air conditioning installation costs in Perth
Perth is one of the few capitals where evaporative cooling genuinely competes: the dry summer heat suits it, and it is cheaper to buy and run than refrigerated air, so many homes weigh evaporative against reverse-cycle in a way humid cities cannot. For refrigerated ducted systems, the double-brick construction common here makes running ducts and cabling harder than in a timber-framed house, which lifts the install cost.
Isolation adds lead time on specific units and parts compared with the eastern states. Perth's fierce summer sun means the cooling load is real, so whatever the system, correct sizing matters. A licensed electrician and refrigerant-handling licence are required. Local labour sits a touch below the national average, so a straightforward split-system install in a modern home is among the cheaper capitals.
Compare against the national picture: Air Conditioning Installation Cost in Australia →
Air Conditioning Installation Cost in other cities
Frequently asked questions
How much does air conditioning installation cost in Australia?
A single split system typically costs $600–$1,200 installed in 2026, multi-split $2,500–$6,000, and ducted $7,000–$20,000 depending on home size.
Is ducted or split air conditioning cheaper?
Split systems are far cheaper to install and run for one or two rooms. Ducted suits whole-home comfort but costs much more to install and run.
Can I install air conditioning myself?
No, in Australia air conditioning must be installed by a licensed refrigeration mechanic and signed off by a licensed electrician.