WHEN TO REPLACE YOUR HVAC: 8 MAJOR SIGNS YOU SHOULD KNOW
As much as you might wish otherwise, HVAC systems don’t last forever. When your unit shows signs of disrepair or age, you need to have a new one installed sooner rather than later. Trying to keep using an old HVAC system actually costs you more in the long-term.
Not only do old HVAC systems struggle to heat or cool, but they can also cause your monthly bills to spike. You can avoid these increasingly diminishing returns by reaching out to Conway Services.
We’ll talk to you about when to replace your HVAC system and handle the service in your home. Conway Services is a trusted provider of air conditioning, heating, and cooling services, serving homeowners and landlords since 1990. Our team offers HVAC repair, HVAC maintenance, and HVAC installations to keep your home comfortable and your energy bills low.
HOW LONG DOES AN HVAC SYSTEM TYPICALLY LAST?
An HVAC system has a lifespan of around 10 to 15 years. However, we recommend you start thinking about replacement once you reach the eight-year mark, especially in warm, humid states.
Regular use, extreme climates, aging, and outdated models all contribute to reduced performance in HVAC systems. While regular heating preventive maintenance or quick AC tune-ups can extend your system’s lifespan, you’ll eventually have to replace it once it shows major signs of wear and tear.
8 KEY SIGNS IT MAY BE TIME TO REPLACE YOUR HVAC
SYSTEM
We understand the urge to hold onto your HVAC system for as long as possible. However, if your unit is showing any of these signs, it may be time to take the plunge and move forward with replacement.
1. YOUR SYSTEM IS OVER 10 YEARS OLD
Just like old age can bring creaky knees and a sore back, it can make everyday use harder on an HVAC system. Older units often struggle with worn-out parts or failing electrical components.
2. RISING ENERGY BILLS
Have you ever done a double-take looking at your monthly energy bill? If this reaction happens often, you might have an outdated or improperly sized HVAC system that is taking more than it’s giving.

3. FREQUENT REPAIRS
An HVAC repair once every year or two is nothing to worry about, but multiple repairs in a single year usually point to a failing system.
4. STRANGE OR LOUD NOISES
Your HVAC may hum or creak slightly when turning on. However, you shouldn’t hear any grinding, banging, or rattling sounds. These noises usually indicate failing parts and should be examined by a professional immediately.
5. UNEVEN TEMPERATURES
Deciding when to replace your HVAC unit can be as simple as just wanting a more comfortable home. If you’re tired of dealing with uneven heating or cooling, a new installation will offer sweet relief.
6. POOR INDOOR AIR QUALITY
If you have a sensitive constitution, old HVAC equipment can make things worse. Aging systems tend to kick up dust and dirt, worsening indoor air quality and aggravating your sinuses. They can also lead to higher humidity levels or even mildew buildup from dirty filters or leaks.
7. UNPLEASANT OR FOUL ODORS
Knowing when to replace an HVAC system means following your nose. Slightly musty or dusty smells are normal, especially if you haven’t used the unit in a while. However, you should never smell something like sulfur or rotten eggs. Strange odors in your heating system or cooling system require immediate professional attention.
8. YOUR SYSTEM USES R-22 REFRIGERANT
R-22 refrigerant is an outdated fluid used in older HVAC systems. Since it’s not the most sustainable material, many brands now use alternative fuels to help you heat or cool your home.
If your system is over 15 years old, it may rely on this outdated and unsustainable refrigerant.
Do any of these problems sound familiar? Conway Services can help, so give us a call. We can help you choose a new HVAC model, whether it’s an AC unit or a heating system.
REPAIR VS. REPLACE YOUR HVAC SYSTEM
You may not need a brand new HVAC model just yet. Here are a few signs that your AC is usually running efficiently and may qualify for a repair:
Your system is less than eight years old.
It only experiences issues every year or two.
The system typically maintains a consistent temperature.
Your energy bills don’t seem unusually high.
WHEN’S THE BEST TIME OF YEAR TO REPLACE HVAC SYSTEMS?
Not sure when to replace your HVAC system? Spring and fall are the best times of year since the weather tends to be milder. Instead of waiting until the middle of a hot summer or chilly winter, you can prepare early and give yourself peace of mind.
Check out our tips on preventive maintenance for your furnace or when to get your AC coils professionally cleaned.
WHAT TO CONSIDER WHEN REPLACING AN HVAC
Once you know when to replace an HVAC, it’s helpful to start exploring the main factors in a new installation, such as the right size, efficiency ratings, and your general comfort needs. An experienced HVAC technician will perform an in-depth inspection of your home to ensure you’re getting a system that saves money while keeping your space comfortable year-round.
Don’t have ductwork? Consider a ductless mini-split if you want to enjoy the convenience of zoned heating and cooling without ducts.
CALL CONWAY SERVICES FOR HVAC INSTALLATION OR
REPAIR
Conway Services has experienced technicians and great deals to help turn the inconvenience of needing a new HVAC system into a more pleasant memory. Our service area spans across the Memphis area, so you won’t have to search far to get fast service.
Check out what sets us apart:
Pro Service Plan: Enjoy priority service, yearly maintenance, and extra discounts.
Financing options: Apply for flexible financing to help you budget for a new installation.
Discounts and coupons: All our customers get access to our latest specials.
Exceptional Service Guarantee: If you’re not happy with your service, we’ll make it right.
Ready to enjoy lower bills and a more comfortable home? Call now or schedule an appointment online and finally enjoy the high-quality HVAC system you’ve always wanted.