Your air conditioner plays a crucial role in keeping your home comfortable, especially during the hottest days of the year. But as your system ages or starts acting up, you may find yourself wondering: should I repair it or replace it altogether? If you're unsure which direction to take, the information below can help guide your decision and protect both your comfort and your wallet.

Signs Your AC Needs to be Repaired or Replaced

Wondering how to tell whether your AC just needs a quick fix or if it's time for something new? Keep an eye out for signs like:

  • Strange noises or rattling
  • Unusual smells, like burning or mustiness
  • Uneven cooling throughout your home
  • Frequent on/off cycling
  • Weak or inconsistent airflow
  • Excess humidity indoors
  • Water pooling near the unit
  • Recurring repair needs
  • High energy bills
  • Overall reduced performance

If you’re noticing one or more of these issues, it may just be a repairable problem. But the longer you wait to get it checked, the more strain your system may experience, which can lead to even costlier repairs down the line. One common red flag is uneven cooling. If your upstairs rooms feel hotter than the rest of the house, or one side of your home is always uncomfortable, your AC could be on its last leg. Systems running inefficiently often cycle more frequently and use more energy, sending your utility bills through the roof. If your AC is over 10 years old and these problems keep showing up, it may be time to seriously consider a replacement.

Age of Your AC System

Most air conditioners last around 10 to 15 years, 20 if maintained well. But if yours is over 15 years old, it’s probably operating far less efficiently than a newer model would. Upgrading to a modern, energy-efficient AC can significantly lower your monthly cooling costs. New systems are designed to cool your home better while using less energy. If your old system struggles to keep your house comfortable or breaks down often, replacement could be the smarter financial decision. A good rule of thumb? If a repair costs more than half the price of a new unit, it’s better to upgrade.

Can Repairs Really Hold Me Over for Another Season?

It depends on the situation. If your AC only needs a minor fix, like replacing a capacitor or topping off refrigerant, it might get you through another summer just fine. But if you’re dealing with major issues like compressor failure, motor problems, or aging ductwork, a repair may only delay the inevitable. In these cases, you’re likely better off replacing the unit to avoid ongoing repair bills and poor performance. Ask your technician to weigh the short-term fix against the long-term cost of ownership. A professional evaluation can give you the peace of mind you need to make the best call.

SEER2 Ratings

SEER stands for Seasonal Energy Efficiency Ratio, which measures how efficiently your AC operates over a cooling season. SEER2 is the updated standard, incorporating new testing procedures to reflect real-world performance more accurately. The current minimum SEER2 rating for new systems is 13.4. Many high-efficiency models fall between 14 and 21. The higher the SEER2 number, the less energy your system wastes, saving you money over time. Ductwork, insulation, and home size can all impact how well your system performs.

Benefits of Replacing Your Old AC

Still on the fence about upgrading your AC? Here are some of the key benefits of making the switch:

Lower Energy Use

Modern systems are far more energy-efficient, and some homeowners see a 20–40% drop in cooling costs. You’ll also reduce your home’s carbon footprint, which is great if you’re eco-conscious.

Better Indoor Air Quality

Newer systems feature advanced filtration that can reduce dust, allergens, and humidity levels. That’s a big win if anyone in your household suffers from allergies or asthma.

Right-Sizing for Your Home

A new installation is a great opportunity to make sure your AC is properly sized. An undersized or oversized unit won’t cool efficiently and may wear out faster. We'll help you find the perfect fit.

Fewer Repairs and More Peace of Mind

New systems are reliable and backed by warranties. You won’t have to worry about constant breakdowns or expensive emergency repairs.

Quieter Operation

Today’s AC units are engineered to run quietly, so you can stay cool without the disruptive noise.

Smart Features

Many systems now work with smart thermostats and mobile apps, allowing for remote control and energy tracking. Some even alert you when maintenance is due.

Environmentally Friendly Refrigerants

Still using R-22 refrigerant? It’s being phased out and is expensive to replace. New systems use eco-friendlier refrigerants that are better for both your wallet and the environment.

Get in Touch With Us

If you're not sure whether to repair or replace your AC, give us a call. At One Hour Heating & Air Conditioning® in Herrin, we’ll assess your system and walk you through your options. We’re here to make sure your home stays cool, comfortable, and energy-efficient, no matter what.