How Do I Know When to Replace My AC?

Advantage Air HVAC • June 18, 2025

Much to our dismay, there comes a time in every appliance's life when it needs replacing. If you notice higher temperatures or humidity in your home, you may need an air conditioner replacement. AC replacement cost is often a homeowner’s least favorite topic, but sometimes, repairs cost more than the replacement itself.

A brand-new, modern, high-efficiency AC unit outside of a residential home near Lexington, KY

At Advantage Air HVAC, we can help you decide between AC repairs and air conditioner replacement near Lexington, KY.

5 Signs It’s Time to Have an AC Replacement

Our team of expert technicians, with over 32 years of experience, compiled five common signs that it's time for a new air conditioner:

1. Hearing Loud Noises

Your AC might require a tune-up or tightening of its screws if it makes more noise than it used to. Listen for sounds like:

  • Grinding.
  • Squeaking.
  • Chattering.
  • Rattling.
  • Banging

These noises can also indicate that the motor is about to go out. Based on the severity of the sounds, our technicians can help you decide between repairs and replacement.

2. Noticing Reduced Airflow

If you notice your AC is running, but the house isn't cooling down like it usually does, it’s likely that the airflow isn't quite what it used to be. You may also see an increase in energy bills, which is less than ideal. Getting an HVAC duct inspection is helpful, but having a professional inspect your AC is also worthwhile for resolving this issue.

Our HVAC technicians can swap parts, but replacing an AC could cost the same as repairs, meaning a new air conditioner would be a better financial investment.

3. Feeling Your Registers Blowing Warm Air

If warm air is pouring from your registers, or some rooms feel warmer than others, even with the air conditioner on, it's a bad sign for your AC. While there might be other causes, such as dirty air filters, incorrect thermostat settings, or even low refrigerant levels or leaks, the unit might need professional attention.

A replacement could also be necessary because the unit is overheating or there’s an issue with the electrical system or the compressor.

4. Experiencing High Humidity Inside

Your air conditioner doesn't just cool the air; it also dehumidifies, making it feel cooler. This problem is especially noticeable in more humid climates like Lexington, KY.

If your home feels humid even with the AC running, it could mean you have dirty coils, frost build-up, or even a clogged drain. However, it can also indicate it’s time to replace your AC as the unit might be insufficient for your home’s size or can’t keep up anymore.

5. Having an AC Over 10 Years Old

As your air conditioner ages, it becomes less effective and reliable, making replacement parts more challenging to find. Older AC systems can also become a burden when something constantly goes wrong, and you need to call your HVAC technician for help.

Newer air conditioner units use safer and less energy-consuming coolant methods, like geothermal cooling. They’re also more reliable, so you can spend less time, energy, and money on fixing and maintaining them.

Benefits of Scheduling Regular AC Maintenance

At Advantage Air HVAC, we’re a locally owned and operated residential and commercial HVAC service provider. When you schedule regular maintenance, you're getting certified technicians local to Lexington, KY, who know how different conditions impact heating and cooling in the area.

Regular maintenance allows us, and you, to keep an eye on all of the HVAC systems in your home so we can find problems, like duct repairs, while they're still small and cost less.

Additionally, we'll provide options so you can decide whether to pay for repairs or the AC replacement cost.

Schedule Your Air Conditioner Replacement Near Lexington, KY

If you recognize any of these five signs, contact our Advantage Air HVAC technicians for AC maintenance or replacement. We'll work with you to determine the most cost-effective route and get your home back to a comfortable temperature as soon as possible.

To schedule your AC check-up, call (859) 559-6409 or contact us online. Advantage Air HVAC is located in Lexington, KY, and proudly serves our neighboring communities, including Georgetown, Paris, Winchester, and Frankfort, KY.

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