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Should You Replace or Simply Repair Your AC Unit
Should You Replace or Simply Repair Your AC Unit
25/Feb/2025

An AC unit replacement can cost anywhere from a few thousand dollars to well over ten grand, and it’s natural for homeowners and businesses to want to make the most of their existing unit. Luckily, the typical AC unit can last over a dozen years with proper installation and regular maintenance. Sadly, some can break down prematurely.
So, how do you know whether it’s time to replace the unit altogether or to simply schedule – yet another – AC repair? In this brief article brought to you by Aire Serv, we’ll touch on the factors that should influence your decision and signs of trouble to recognize. 
If you’d rather consult with a technician from a reputable HVAC company in Dallas, then contact Aire Serv for a one-on-one conversation. We’re happy to schedule a face-to-face meeting or onsite visit for as soon as possible.

Should You Replace or Simply Repair Your AC Unit

An AC Unit Will Only Last So Many Years.

One of the first questions to ask is, "How old is my AC?" If your system is 10+ years old, then it’s nearing the end of its lifespan. While a well-maintained unit can stretch to 15 years, the efficiency of older models declines over time due to natural laws of physics and chemistry.
Newer models are not only designed with higher energy efficiency standards but also come with advanced features for your comfort, health, and convenience.

Aire Serv Services

We provide reliable residential and commercial heating & cooling services.

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Recurring Repair Costs Can Add Up FAST!

An occasional AC repair is expected, but it might be a sign to replace the unit if you’re calling your HVAC technician more often than your barber. Frequent breakdowns add up quickly, and the repair costs could be close to what you’d spend on a new system – especially if your AC is out of warranty. 
Here’s a good rule of thumb: If a repair costs more than 50% of the price of a new unit, then a replacement is usually the smarter choice.

An Energy Inefficient AC Is Costing You BIG

If you’re living your humble life with little change but your energy bills are creeping up, then your AC unit may be to blame. After all, it’s estimated that heating and cooling account for around half of household energy consumption. This can be even greater in businesses.
Older models are naturally less efficient than modern ones, plus older units tend to lose efficiency over time. This is a big reason why some homeowners upgrade their AC unit years before it’s expected to expire.

These Sounds Can Indicate Internal Problems

A healthy AC unit should run relatively quietly. If you start hearing grinding, banging, squealing, or rattling sounds, then internal components may be in trouble. Burning or musty odors are also red flags; burning smells often mean electrical issues while musty odors suggest mold growth inside the system. 
Many times, the problem can be fixed with a quick cleaning or repair – or even a part replacement. As we mentioned earlier, however, repair costs that exceed half the price of a new unit typically deem a replacement more cost-effective.

Are Your Household and Activities Growing?

If you’ve recently added square footage, renovated your home, or upgraded insulation, then your current AC unit may no longer be properly sized for your needs. 
An undersized unit will overwork and struggle to cool your space efficiently. On the flip side, an oversized unit may cycle on and off too frequently. When your space changes, your cooling system should be reassessed accordingly.

Consult a Trained Technician Today

If you’re still unsure whether to repair or replace your AC unit, a professional HVAC assessment can help. At Aire Serv, we provide honest evaluations and upfront pricing to help you make the best decision for your home or business. Call or message us today to get in touch!

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