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Air conditioning installation in Brisbane

Long, wet, heavy summers. Humidity is the enemy, not just the temperature on the BOM app.

Short answer

Air conditioning in Brisbane usually costs about $1,750 to $4,000 installed for a split system in 2026, from a 2.5 kW bedroom unit to a large 8 or 9 kW lounge unit. Ducted reverse cycle for a typical lowset three bedroom home runs about $10,000 to $15,500. These are estimates for a standard single-storey install.

Prices are estimates, not quotes (how we estimate them). Rebate rules checked September 2026.

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Brisbane summers are long enough that a cheap unit you have to replace in four years is not cheap. Humidity matters. A unit that only knocks the temperature down and leaves the house clammy will make you hate it by February.

Splits are the everyday job. $1,750 to $4,000 installed, bedroom unit to big lounge unit, is the guide band for a standard job. Queenslanders can be fiddly because of the stumps and the tin. Ducted in a lowset brick home is usually cleaner.

We will not invent a rebate. Queensland money is pointed at hot water and other upgrades. You save here on a tight quote and a unit that can actually dehumidify.

How much does air conditioning installation cost in Brisbane?

These are supply-and-install prices for a standard Brisbane job in 2026: a licensed ARCtick installer, a normal pipe run, a bracket or ground pad, and a basic electrical connection.

Air conditioning installed prices in Brisbane, 2026
JobTypical sizeInstalled price
Bedroom split2.5 kW$1,750 to $2,500
Living room split5 to 7 kW$2,200 to $3,600
Large living area split8 to 9 kW$3,000 to $4,000
Multi-head, two roomsOne outdoor, two heads$4,500 to $7,500
Multi-head, three or four roomsOne outdoor, three or four heads$6,000 to $12,000
Ducted, lowset 3 bedroom10 to 14 kW, zoned$10,000 to $15,500
Ducted, 4 bedroom or highset14 kW and up, zoned$13,000 to $19,000
Estimates for a standard single-storey install. A double storey install adds about $275 to $800, pipe beyond the standard run $45 to $155 a metre, a dedicated circuit $300 to $900 and a switchboard upgrade $1,000 to $3,500. Highset Queenslanders and two storey pipe runs sit at the top of each band.

The full breakdown by size is in our split system cost guide and ducted cost guide. To see where your own house lands, compare quotes from up to three licensed Brisbane installers.

What air conditioner handles Brisbane humidity?

Brisbane's January average is 30.4 degrees, which is not dramatic. The problem is the nights. The average January minimum is 21.7 degrees and afternoon humidity sits around 57 to 59 percent through January and February, according to the Bureau of Meteorology. Your body does not get a break after dark, and neither does the air con.

Humidity changes what you should buy. An oversized unit cools the room fast, switches off, and leaves the moisture behind. That is the clammy lounge people complain about. A correctly sized inverter unit runs longer at low speed and pulls more water out of the air. Use the size calculator before you accept a 7 kW unit for a 20 square metre room.

  • Ask for a unit with a proper dry mode and check the installer sets it up. It earns its keep from December to March.
  • Run the condensate drain somewhere sensible. Brisbane units drain a lot of water, and a drain onto the deck stains it within one summer.

Split system installation in Brisbane by house type

Queenslanders in Paddington, Ashgrove, Red Hill and Wynnum are a different job from lowset brick in Carindale or Aspley. Timber walls are easy to drill. Tin roofs over a tight roof space are not easy to get ducts through. Most Queenslander owners end up with two or three splits, or a multi-head, with the outdoor units tucked under the house where they are out of sight and out of the rain.

Highsets and houses lifted on stumps usually put the outdoor unit on the ground underneath. That is good for noise and looks, but it adds pipe length. Ask the quote to state the pipe run.

Lowset brick through the northside and southside suburbs, plus the newer estates at North Lakes and Springfield Lakes, are where ducted is simplest. The roof space is usually workable, and a three bedroom lowset is the job most Brisbane ducted installers do every week.

Ducted air conditioning in Brisbane: when it is worth it

Ducted makes sense if you actually use most of the house through a Brisbane summer and you want one quiet, even system. Budget about $10,000 to $15,500 for a lowset three bedder. Zoning is what makes it affordable to run. Being able to shut the bedrooms during the day is the difference between a sensible bill and cooling the whole roof.

If you live in the lounge and the main bedroom, two good splits will cost less to buy and less to run. Our guide to split, multi-head or ducted walks through the call.

Queensland air conditioning rebates in 2026

There is no statewide household air conditioning rebate in Queensland in 2026. The Climate Smart Energy Savers appliance rebate, which did cover efficient reverse cycle units, has closed, and the Queensland Government's home energy savings page no longer lists it. The details are on our Queensland rebate page.

What you can control is the quote. An itemised quote from a vetted local installer, checked against the table above, does more for your budget than any rebate rumour. Running the system on rooftop solar through the afternoon is the closest thing Brisbane has to a subsidy.

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

Brisbane installers are busy from October through February, and the first run of humid 32 degree days empties their diaries fast. September and early October are the sweet spot. Enter your postcode and get up to three local quotes. We pass your job to up to three vetted, ARCtick licensed installers who work your suburb, not an open auction, and each prices your house with an itemised quote. If the old unit dies in January, say so. Emergency work gets prioritised.

Sources

Typical split, estimate

$1,750 to $4,000 installed

Typical ducted, estimate

$10,000 to $15,500 for a typical lowset three bedder

The rebate in Brisbane

There is no statewide Queensland rebate for household air conditioning right now. The Climate Smart Energy Savers appliance rebate has closed. Anyone promising one on Facebook is selling.

Queenslanders, lowset brick, and a lot of outdoor units that have been dying quietly under the house.

Suburbs we hear from

Chermside, Indooroopilly, Carindale, North Lakes, Ipswich, Logan, Paddington, Ashgrove, The Gap, Aspley, Mount Gravatt, Sunnybank, Wynnum, Springfield Lakes, Redcliffe, Kenmore.

Common questions

How much does it cost to install an air conditioner in Brisbane?

Most Brisbane split system installs land between about $1,750 and $4,000 on a standard job, depending on size and the pipe run. Ducted for a lowset three bedroom home is usually $10,000 to $15,500, and a bigger or highset home can reach $19,000.

Is there a Queensland air con rebate in 2026?

Not a statewide household scheme like Victoria. The Climate Smart Energy Savers rebate has closed. If someone quotes an $8,000 government grant on a single split, walk away.

Split or ducted in a Queenslander?

Plenty of Queenslanders do two or three splits because the roof space is not friendly. Ducted can work. It needs someone who has done tin and stumps before, not a first-year apprentice with a brochure.

How much does Harvey Norman or Bunnings charge to install an aircon?

Retailer install packages cover a back-to-back install: indoor and outdoor units on opposite sides of one wall, a short pipe run and a basic electrical connection. Longer pipe runs, under-house mounting, a new circuit or removing the old unit are extras. An itemised quote from a local installer shows those extras before you commit, so get up to three local quotes and compare like with like.

Which is cheaper to run in Brisbane, ducted or split?

Per room, a split is cheaper to run. Ducted can be close if it is zoned and you only run the zones you are using. Run the numbers for your house on the running cost calculator.

How many years should an air conditioner last in Brisbane?

A well-installed split from a major brand commonly lasts 10 to 15 years with a yearly clean. Brisbane humidity is hard on neglected units because the coil and drain grow mould. Bayside homes in Wynnum and Redcliffe should ask about a corrosion-treated outdoor coil.

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How installation works and what it costs · Split, multi-head or ducted: which suits your home? · What size air conditioner do I need? Room size chart · Air con rebates in Australia in 2026

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