8 Reasons to Replace Older HVAC Systems

One of the biggest investments we make for our home is HVAC systems, so it’s good to maintain it properly. The major functionality of HVAC systems is to keep you warm in cold winters and cool in hot summers. Even if you regularly maintain and ensure that it performs well, at some point, the system may need to be replaced due to various reasons. 

Here are few tips to educate you about when it’s time to update your HVAC system,

Overall age

Generally, the maximum lifespan of an air conditioner is approximately 15-20 years, if you notice any frequent repairs then consider its age. If it’s too old, it would not function properly and run as efficiently, in the end, it would cost you money on your monthly power bill. Always keep an eye on the major components that may deteriorate after that many years. If you’ve decided to replace then consider replacing it with a more energy-efficient unit that can save up to 20 percent on heating and cooling costs.

Frequent repairs

Does your HVAC system require frequent repairs? Are you constantly replacing the parts? or do the same problems exist for a long time? then it may be time to replace your system. If an older system requires frequent repairs then it’s becoming less efficient. Also, your energy bills will start getting more expensive.When ordinary wear and tear causes a problem you can fix it several times, but if you spend hours every other day trying to work your air conditioning system again, then you might consider replacement. A new system will work efficiently and save money.

Rising bills

This happens due to the aging of the system, over time it loses efficiency. If you upgrade your system then it’s possible to cut down your energy bill by almost 20%.  It’s proven that one could reduce air conditioning energy use by 20 to 50% if the old HVAC unit is replaced with a new, energy-efficient system.


The goal of an HVAC system is to spread warm air in the winter and cool air in the summer. If your system fails to give enough comfort during such months then consider replacing it. You need an efficient unit that can keep you comfortable at extreme temperatures of the summer and winter. 

A newer HVAC system can heat and cool your home more efficiently than an older unit. When is it time to replace your old HVAC unit? You can detect the failure if one room is  warmer or cooler than the rest of the home. You may also feel discomfort throughout your home. An older HVAC system will face difficulty to reach the set temperature on the thermostat.

Unusual Noise

If your HVAC system could make loud, unsettling noises when it’s running then it’s a sign to consider replacement. Get assistance from an HVAC specialist to decide whether you need to replace the whole HVAC system or if you simply need to replace a faulty part.

If you hear squealing or grinding noise then you need to replace your HVAC system. A buzzing sound could indicate that the unit has loose parts, either a refrigerant leak or a broken compressor. If there are any loose parts the  system has to work harder to produce warm or cool air. If you hear a popping sound it could be fixed by cleaning and insulating the ducts. 

Humidity changes

If the air is unusually dry in the winter or unusually moist in the summer then it’s a potential sign to replace the older HVAC unit. Your air conditioner should efficiently manage humidity, if not then replace your AC. This could be caused by different factors such as a broken thermostat, damaged motor, or a clogged filter.

CO Leaks

Carbon monoxide leaks are very dangerous as it can cause a variety of unpleasant physical symptoms and even death. Leaks can occur in any system but mostly with old units. Furnaces can rust or develop failing parts, this results in carbon monoxide leaks.

Poor air quality

Managing a home’s indoor air quality is an important function of HVAC.  If you notice dust accumulating through your home, then there may be issues with the ventilation system of the HVAC. The HVAC system should provide clean air for you and your family to breathe. Newer HVAC units are equipped to clean the dust, airborne allergens, and other forms of debris. If you smell a burning odor in the heating unit, it’s due to the buildup of dust. Schedule an inspection with an HVAC specialist and replace the old unit.