Schedule regular servicing every 12 months – ideally in April or September (October or November at the very latest) – to keep your air conditioning unit running efficiently. A technician will clean coils and filters, top up refrigerant and check electrical connections, protecting your family’s comfort while extending the lifetime of the system.
When is the Best Time of Year for Air Conditioner Services?
We all seek the toasty warmth of indoor comfort when those frosty winter days are here. But summer will be knocking on the door before you know it, which begs the question, “When is the best time for air conditioner services and maintenance?”
Most modern air conditioners are reverse cycle. They provide a full range of air conditioning services, delivering heating for the winter and cooling for the summer. That’s why you want assurance that it’s in perfect working order, no matter what the season.
But when exactly is the best time of the year to have your air conditioning system serviced or repaired? And for that matter, when is the best time to have a new heater or air conditioner unit installed? Let’s take a look at each scenario.
The Best Time for Air Conditioner Repairs
Generally, it makes sense to book air conditioner services or scheduled maintenance before they get worse and become emergency repairs.
You don’t want to find yourself in a mid-winter cold snap, only to discover your reverse cycle air con is unable to hold up its end of the heating bargain.
At the same time, you don’t want to find yourself sweating profusely through a summer heatwave because you can’t get an air conditioner technician in for another three weeks.
The ‘Off-Season’ – the Best Time to Book
The off-season periods of the year are often when your local air con business is typically quieter and therefore more available.
For a reverse cycle split system air conditioner, getting maintenance or repair services in the early weeks of autumn will put you in good stead for both winter.
For summer? If you’re just running a cooling system, then you could certainly consider having that serviced in the early weeks of spring. Definitely no later than October or November.
Always keep in mind that as you get closer to the cold of June or the sweltering heat of the summer months, demand for repairs and servicing does increase.
Therefore, you may need to wait a little longer. Which is precisely why we recommend that you get your heater or air conditioner serviced or repaired during the off-season.

The Benefits of Regular AC Servicing
So now that we understand the importance of well-timed air conditioner services, why is regular professional maintenance so important in the first place? As it happens, the benefits are well worth your while. They include:
- You can save up to 30% on energy running costs.
- Servicing extends the lifespan of the unit and protects its warranty.
- Maintains healthy indoor air quality by removing dust and mould.
- The process detects minor faults before costly breakdowns occur.
- Keeps reverse‑cycle performance efficient all year.
It’s important to always use a licensed air con technician for your air conditioner services. DIY attempts can violate the terms of your warranty. There may even be potential implications on your home and contents insurance policy. None of them positive.
What’s Involved in an AC Service?
So, what does a licensed technician do when they conduct air conditioner services? A thorough service will typically involve:
- Carrying out a comprehensive visual inspection of both the indoor and outdoor units, checking for wear, loose connections and any obvious damage that may cause system faults or breakdowns in the future.
- Clean the evaporator and condenser coils to eliminate built‑up dust and debris. This restores efficient heat transfer and reliable cooling performance.
- Check and replace the air filters to prevent airflow restrictions, lower energy use, and maintain healthy indoor air quality.
- Measure refrigerant levels and top up (or repair leaks) to protect the air con compressor and ensure the system delivers sufficiently heated or cooled air when needed.
- Lubricate moving parts and tighten electrical connections to minimise friction, prevent overheating and keep the unit running smoothly.
- Test the thermostat and overall controls to confirm accurate temperature regulation and fault‑free operation.
Following these six steps enables you (with help from your qualified technician) to keep your air conditioner efficient. They will extend the unit’s natural lifespan, and you’ll experience year‑round, climate-controlled comfort.

The Best Time for AC Installation
If you’re looking to replace an old or inefficient air conditioner or get a new unit installed from scratch, winter is typically the best time of the year to take the plunge.
If you wait until summer, you’ll be competing for emergency installations. You’re smack bang in the middle of the hot weather, and everyone else is seeking immediate relief. Emergency breakdowns also mean that supply and demand are stretched to the limit.
During the cooler months of the year, though, finding the perfect aircon at a competitive price will generally be easier. This is because the overall demand is not quite as high.
That being said, getting the air conditioner installed at the same time as your purchase might not necessarily be the best approach.
As mentioned above, the off-season periods of the year are typically when specialist air conditioner installers are more available.
And you’ll need a professional installation; it’s not a DIY job.
Effective AC Solutions All Year Round
Of course, you are free to buy your air conditioner and book a qualified technician to install or service it at any time of the year. An experienced and licensed air conditioning installation specialist will ensure your system is fitted to meet Australian safety standards.
We’re also here to make sure it works at optimal energy efficiency while improving your air quality and providing year-round, climate-controlled comfort. It’s what we all want.
Please note: Thanks for reading our blog “When is the Best Time of Year for Air Conditioner Services?” This information is provided for advice purposes only. Regulations differ from state to state, so please consult your local authorities or an industry professional before proceeding with any work. See our Terms & Conditions here.
Frequently Asked Questions
All your essential questions about air conditioner services answered here!
Having a split system air conditioner installed in winter offers the best balance of price and availability. Off‑season installation means shorter wait times, access to a wider product range, and potential savings on both units and labour before summer demand spikes.
Yes. Routine maintenance keeps components clean, maintains correct refrigerant levels and replaces clogged filters. This helps the air conditioning system cool or heat more efficiently, cuts energy running costs, and removes dust and allergens, delivering healthier air quality throughout your home.
Call qualified technicians if the unit blows warm air (in summer), the fan rattles, energy bills suddenly rise, or you see ice on the outdoor unit. Ignoring these symptoms can lead to higher repair costs or complete breakdown, especially during extreme summer or winter temperatures.
Published: 2025-07-16