Air conditioning installation in Adelaide

How much does it cost to install a split system in Adelaide?

Adelaide calls it refrigerated air conditioning. It is the same reverse cycle heat pump the eastern states buy, and it cools and heats. These are estimated installed prices for a standard single-storey Adelaide job in 2026 with an ARCtick licensed installer. Adelaide installers rarely publish price lists, so the bands are built from installer guides, SA retailer install fees and national pricing. Treat them as a guide and compare real quotes.

See the split system cost guide and the ducted cost guide for what moves a price inside these bands. For your own house, compare quotes from up to three licensed Adelaide installers.

Dry heat, and why evaporative runs out of road

Adelaide summers are dry. At West Terrace the Bureau of Meteorology records an average January maximum of 28.7 degrees with afternoon humidity around 39 percent. The average hides the heatwaves. On those dry days an evaporative cooler works well.

It struggles on the humid nights after a change, and it cannot heat. The July average minimum at West Terrace is 7.6 degrees, and it is colder in the Hills. A refrigerated system covers both seasons from one install. Our reverse cycle vs evaporative guide sets out the running cost trade.

• Size for the hottest room, usually the west-facing lounge or the upstairs bedroom, not the average.
• Solar is common in Adelaide. Running a refrigerated system through the afternoon on your own panels is the cheapest cooling you will get.
• In the Hills, from Stirling to Mount Barker, compare heating output as closely as cooling.

Replacing evaporative with ducted refrigerated air

This is the most common Adelaide ducted job. The roof already has an opening and outlets, so part of the work is done. The catch is the ducting. Evaporative ducts are sized for large volumes of outside air, and they are rarely insulated or sized right for a refrigerated system. Most installers replace them. If someone offers to reuse the old ducts, ask them to show you why it will work. To price an evaporative swap properly, get up to three local quotes and ask for the ducting as its own line.

Growth suburbs such as Mawson Lakes, Golden Grove, Aldinga and Mount Barker have roof spaces that suit ducted well. A zoned system lets you run the living areas in the day and the bedrooms at night.

Sandstone villas, double brick and the coast

Sandstone and bluestone villas in Norwood, Unley and Prospect hold their temperature well, but thick walls make every penetration slow. Many sit in character or heritage areas, so keep outdoor units off the street frontage and check with council if the unit will be visible.

Post-war double brick and brick veneer across Salisbury, Modbury, Marion and Morphett Vale is the everyday split and ducted market. Coastal homes from Henley Beach to Glenelg get salt air, so ask about a corrosion-treated outdoor coil.

South Australian air conditioning rebates in 2026

South Australia has no VEU-style statewide discount you can count on for a typical household reverse cycle. It does run the Retailer Energy Productivity Scheme, which requires obliged energy retailers to deliver approved energy productivity activities, and efficient air conditioning is on the residential list. Offers depend on the retailer or activity provider, you do not need to be their customer, and any incentive is applied when the work is done.

Treat a REPS offer as a discount on one quote and compare it with the others. More detail is on our South Australia rebate page.

How to get an air con installation quote in Adelaide before summer

Adelaide installers fill up with the first heatwave. Book in September or October, while there is time to size the job properly. Enter your postcode and get up to three local quotes. Up to three vetted, ARCtick licensed installers who work your area each give you an itemised price. If an evaporative unit has died mid-summer, say so.