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Air-con / HVAC · Adelaide, SA

Find a trusted air-con installer in Adelaide

Need air con installation in Adelaide before the next heatwave, or a reverse-cycle system to warm the house through winter? Let us know which rooms and which suburb, and we'll find you one local installer with their CBS licence, refrigerant licence, insurance and reviews already checked.

Air-con / HVAC in Adelaide

Common air-con installer jobs in Adelaide

  • Split systems for bedrooms and living areas ahead of summer
  • Swapping an old evaporative cooler for reverse-cycle ducted
  • Servicing evaporative coolers and replacing pads before the heat
  • Multi-head systems when only a few rooms need cooling
  • Reverse-cycle heating to replace old gas or electric heaters
  • Pre-summer service and clean of split and ducted systems
  • Moving outdoor units, including high wall brackets on two-storey homes
  • Adding zones to an existing ducted system

Evaporative or reverse-cycle for Adelaide’s dry heat

Most of Adelaide’s summer heat is dry, and that’s why so many roofs here still carry an evaporative cooler. Evaporative systems work well on hot, low-humidity days, are relatively cheap to run and need windows or doors open to do their job. They struggle on the occasional humid day and do nothing for winter. A rooftop cooler also needs a service before summer, with new pads, a clean of the water tray and a check of the float and drain valves, to keep it efficient and stop that musty smell.

Reverse-cycle air con, whether split, multi-head or ducted, cools whatever the humidity and heats the house through chilly winter nights too. That’s why a lot of homeowners replacing a tired evaporative system or an old gas heater go with reverse-cycle ducted. If you already have rooftop solar, as many South Australian homes do, running the air con through the sunny part of the afternoon makes good use of it.

Sizing and installing in older Adelaide homes

Villas with ceilings well over three metres hold a lot more air than a modern room with the same floor area, so sizing should come from a proper heat-load check, not a rule of thumb. Solid stone and double brick walls take longer to core through for the pipework, and a long run from the back of the house to the outdoor unit adds cost. In a historic or character area, ask whether an outdoor unit on the street side would need approval, and think about noise near a neighbour’s bedroom window.

Timing matters too. Installers are busiest once the first heatwave arrives, so booking in winter or spring makes it easier to get the unit and install date you want.

Licences on an air con install in SA

An air con installation in South Australia can involve three licences. Installing it is building work, so the business needs a Consumer and Business Services licence that covers air conditioning. The electrical connection needs a CBS-registered electrical worker. And the technician handling the refrigerant needs an Australian Refrigeration Council licence, which you can check on the ARC Licence Check. The CBS licences are searchable on the CBS Occupational Public Register, and our SA licence guide explains both lookups.

Air con installation prices in Adelaide

What you pay in Adelaide depends mostly on the system and the house. A standard split system typically costs $1,500–$3,000 supplied and installed, or $600–$1,500 to install a unit you’ve already bought. Multi-head systems run about $4,500–$11,000, reverse-cycle ducted $8,000–$18,000 for most houses, and a service $120–$300 per split. A new power circuit is extra. See the air con price guide for sizes and what pushes the price up.

Matching you with one Adelaide installer

Tell us which rooms you want cooled or heated and where you live, from Seaford to Gawler. We’ll find one local installer and check their CBS licence, refrigerant licence, insurance and reviews before introducing you. No flood of quotes, no hard sell, and it’s free for you.

For other cities, see our air conditioning page. Our Adelaide page covers the other trades we match. Get a free quote to get started.

Last reviewed 3 October 2026.

Air-con / HVAC in Adelaide: common questions

How much does it cost to install air conditioning in Adelaide?
As a guide, a single split system in Adelaide costs about $1,500 to $3,000 supplied and installed, depending on its size and how far the pipes have to run. Multi-head systems are around $4,500 to $11,000, and reverse-cycle ducted systems $8,000 to $18,000 for most homes. Two-storey installs, long pipe runs and a new circuit add to the price.
How much does Bunnings or Harvey Norman charge to install an air conditioner?
Retailers like these generally offer a fixed-price package covering a basic back-to-back split install, carried out by a contracted installer. That's fair for a straightforward job. Anything beyond the basic package, such as extra pipe, a high wall bracket or a dedicated circuit, is charged separately. Their prices change, so check with the retailer and compare the full written quote.
What is cheaper to run, a ducted or split system?
Split systems usually cost less to run if you only cool or heat a room or two at a time. Ducted systems condition more of the house, though zoning lets you shut off rooms you're not using. In Adelaide, evaporative cooling is cheaper again to run on dry days. The unit's efficiency rating, its size and your insulation matter as much as the system type.
Is evaporative or refrigerated cooling better in Adelaide?
Evaporative cooling suits dry heat and is cheap to run, but it needs open windows, works less well on humid days and doesn't heat. Refrigerated reverse-cycle systems cool in any weather and heat in winter, at a higher running cost. Plenty of Adelaide households choose reverse-cycle for year-round comfort, while evaporative still makes sense for cooling a big house on a budget.
What is the 3 minute rule for air conditioners?
After an air conditioner switches off, the compressor needs about three minutes before it restarts, so the refrigerant pressure can even out. Most modern units build in this delay, which is why the outdoor unit may sit quietly for a moment after you turn it back on. Switching a unit off and on repeatedly in quick succession is hard on the compressor.

Areas we cover around Adelaide

  • Salisbury
  • Mawson Lakes
  • Golden Grove
  • Modbury
  • Campbelltown
  • Burnside
  • Mitcham
  • Marion
  • Morphett Vale
  • Seaford
  • West Lakes
  • Woodville
  • Gawler
  • Stirling

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