April 17, 2025
Whether you’ve found yourself Googling “why isn’t my AC cooling like it used to?” or simply wondering how long a system should last — you’re in the right place.
At Roberts Air Conditioning, we speak to Sydney homeowners daily who are facing the same question: Is it time to replace my air conditioner? If your unit is 10–15 years old, struggling to keep up, or sending your power bills soaring, it might be trying to tell you something.
Let’s dive into the key signs your system may be due for an upgrade — and what you can do about it.
In Sydney’s increasingly hot and unpredictable climate, residential air conditioning isn’t just a luxury — it’s essential. A well-functioning AC system does more than keep you cool. It:
A faulty system, on the other hand, can do the opposite — increasing your energy use and decreasing your comfort.
Most air conditioning units last between 10 and 15 years. After this point, they often:
If your system is getting up there in age, it may not be worth spending more on repairs. Replacing it with a modern, energy-efficient air conditioner could save you hundreds on your power bill each year.
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Notice a steady spike in your energy bills, even though your usage habits haven’t changed? Older units tend to become less energy efficient over time, especially if they have a low SEER (Seasonal Energy Efficiency Ratio) rating.
A new system with higher efficiency standards can:
Is your technician becoming a regular visitor?
Frequent breakdowns are a red flag that your system’s components — like the compressor or fan motor — are wearing out. Replacing parts on an aging system might offer a short-term fix but can cost more than it’s worth long-term.
New systems often come with manufacturer warranties, improved reliability, and lower maintenance costs.
If some rooms in your home feel like a freezer while others feel like a sauna, your air conditioner may be failing to distribute air properly.
Inconsistent temperatures and humidity levels can be caused by:
Upgrading to a correctly sized and zoned air conditioning system can vastly improve comfort and airflow throughout your home.
All air conditioners make some noise — but grinding, banging, or buzzing sounds? Not normal.
Loud operation could mean:
Modern systems are designed to be quieter, with features to reduce vibration and noise levels, offering a more peaceful home environment.
Many older AC units still use outdated refrigerants like R-22 (Freon), which are harmful to the ozone layer and now phased out in Australia.
Newer systems use eco-friendly refrigerants and are designed to be more energy-efficient — better for your home and for the planet.
Looking to reduce your carbon footprint? Our team can recommend energy-smart, environmentally conscious solutions tailored to your needs.
Smart technology has changed the game in home cooling. New systems feature:
If your current air conditioner is missing these features, upgrading could give you more control, more comfort, and better savings.
If your current air conditioner is showing signs of age, inefficiency or breakdown, now is the time to consider a replacement. With new air conditioning installations, you’ll benefit from:
At Roberts Air Conditioning, we provide expert air conditioning installation in Sydney so that homeowners can upgrade with confidence. Whether you’re after a full replacement or just some advice, our licensed professionals are here to make the process seamless from start to finish.
