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Cairns, Queensland

Heating and cooling in CairnsCooling and drying the air, almost all year.

An installer for Cairns

Licence-checked installers in Cairns who specialise in your kind of job see it, and the one who takes it calls you to quote.

  • Goes to installers who specialise in your job
  • Licences checked: ARCtick and the state register
  • Free for you: installers pay us for each job we pass on
  • Only the installer who takes your job gets your details

In Cairns, air conditioning is about cooling and drying the air for most of the year. July nights at the Bureau of Meteorology's Cairns station average a minimum of 17.2 degrees, and February afternoons average 71% humidity. So the choices that matter are sizing for humidity, looking after the unit in wet, salty air, and keeping it above flood level.

What's different about Cairns

Warm winters, humid summers

At the Cairns station, December's mean maximum is 31.8 degrees and July's mean minimum is 17.2. Wikipedia describes hot, humid summers and very warm winters, with a wet-season dew point averaging 23 degrees.

The tropical design brief

The ABCB map puts Cairns in climate zone 1. The Queensland Government's aims there are to cool the home all year round, catch breezes with good ventilation, shade the whole house with wide eaves, and insulate and seal any air-conditioned rooms.

Apartments and renters

At the 2021 Census, 15.7% of occupied dwellings in the Cairns council area were flats or apartments, more than double Townsville's 7.0%, and 35.0% were rented.

Floods and storm tide

Cyclone Jasper in December 2023 pushed the Barron River past its 1977 record, the worst flood since records began in 1915. For homes in storm tide prone areas, the QRA recommends moving electrical wiring, the meter box and other installations above the adopted storm tide level.

Near the water

Beachside suburbs such as Machans Beach, 9.9 km north of the CBD, contend with storm surge, and sea air is hard on outdoor units. Daikin's warranty card makes extra corrosion protection in sea air the owner's job.

Electric only

Cairns isn't on the Queensland Government's natural gas distribution list, and it's on Ergon Energy's regional network.

The jobs that matter most in Cairns

Choosing a system here is mostly about humidity. A unit sized from a heat load keeps drying the air instead of cycling off early; Rinnai says oversized systems short cycle and dehumidify less effectively. Our page on installation in Cairns covers sizing and placement.

Servicing never really has an off-season, because the unit runs most of the year in warm, moist air. Servicing in Cairns explains what to ask for, mould included.

When something goes wrong, look for water first: a unit dripping inside, or one that floodwater has reached. Repairs in Cairns starts with the safe checks.

Renting, or in a unit block?

If you rent, a new or replacement system is the owner's decision, so start with your property manager and say what you need.

In an apartment, expect the body corporate to want a say in where the outdoor unit goes and how the pipes run. Our apartments and strata page explains what to ask before anyone quotes.

Safe for you, and for a technician

You can

  • Clean the filters often. Daikin suggests at least monthly through summer.
  • Keep windows and doors shut while the aircon runs, so it isn't fighting humid outside air.
  • Know where the isolator is before cyclone season starts on 1 November.

Leave to a licensed installer

  • Cleaning mould from the coil, fan and drain.
  • Raising an outdoor unit and its wiring above flood or storm tide level.
  • Refrigerant and electrical work, and any unit you can't reach safely from the ground.

What we'd do

Our advice for Cairns

Pick reverse cycle for its cooling and drying, sized properly rather than big, with the outdoor unit out of the worst of the salt and above any flood or storm tide level. Keep the doors shut when it's on, the filters clean, and book a professional service every year. If you rent or live in a unit block, sort out approvals before anyone quotes.

What this work looks like

Photos from real jobs in Melbourne, to show what the work looks like. They aren't from an installer near you.

New insulated ducts run through a roof space
New insulated ducts run through a roof space. Sep 2023. A job in Melbourne.
A linear slot diffuser in a ceiling, for ducted air
A linear slot diffuser in a ceiling, for ducted air. Oct 2023. A job in Melbourne.
A split system outdoor unit on a timber deck
A split system outdoor unit on a timber deck. Jul 2023. A job in Melbourne.

More job photos

Heating and cooling jobs in Cairns

Suburbs and areas around Cairns

Questions people ask

Do I need heating in Cairns?
Rarely. July's mean minimum at the Cairns station is 17.2 degrees, and Wikipedia calls the winters very warm. If you buy reverse cycle for cooling, the heat mode is there for the odd cool night.
Does evaporative cooling work in Cairns?
It's a poor match. Cairns averages 71% humidity on February afternoons, and the Queensland Government's advice is to turn an evaporative cooler's pump off once humidity passes 65%.
Is there natural gas in Cairns?
Cairns isn't on the Queensland Government's list of natural gas distribution areas, which notes that not every area has a network. Heating and cooling here is an electric job.
Do you have installers in Cairns?
Where we have them, licence-checked local installers who specialise in that work see each Cairns job, and the one who takes it is the only one given your contact details. If nobody around Cairns takes it within 48 hours, installers elsewhere in Queensland may see it, and your contact details still go only to whoever takes it.
Is there help with power bills for medical cooling in Cairns?
Queensland's Medical Cooling and Heating Electricity Concession Scheme covers residents with a qualifying chronic condition that needs cooling or heating at home, if they hold a Pensioner Concession Card or Health Care Card. Re-applying every two years is part of it.

Ready for the right installer to take a look in Cairns?

Your postcode and three quick questions. Licence-checked local installers who specialise in your kind of job see it, and the one who takes it gets in touch to quote.

Free for you. Installers pay us for each job we pass on.

Read next

  1. 01Reverse cycle air conditioningHow reverse cycle heats and cools, which type suits your home, and what to check for winter.
  2. 02Apartments, units and strata approvalBody corporate approval, outdoor unit spots, pipe routes and noise rules for apartments.
  3. 03Air conditioning near the coastSalt, coil coatings, warranty fine print and where the outdoor unit should go near the sea.
  4. 04Evaporative or refrigerated cooling?How each kind of cooling works, why humidity matters, and what each one needs from your home.
  5. 05Air conditioner leaking waterWhat's normal outside, what isn't inside, and the checks you can do yourself.
  6. 06Heating and cooling in QueenslandQueensland's QBCC licence at any value, who does the wiring and gas, and how to read an installer's ad.

Where this information comes from

We don't publish prices. Every home is different, so an installer's written quote is the only real number. How we write and check these pages.

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