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5 Signs of Impending HVAC System Replacement

Barry Martin
March 22, 2023

How do you know your HVAC system replacement is impending? In most cases, the signs of replacements are ignored until a dire state; when your HVAC is struggling to do its job correctly.

There are plenty of signs and indications that tell you about the current condition of your HVAC system if you pay close attention to them. Being aware of these signs and symptoms helps you determine the fitness of your air conditioning system and avoid dangerous incidents..

Apartment tenants and individual homeowners expect an uninterrupted supply of fresh air in their homes. Therefore HVAC systems are some of the best improvements a property owner or operator can have today. Here are five signs that it might be time to replace your HVAC system to avoid unforeseen catastrophes:

Your Energy Bills are Skyrocketing:

When you notice that your energy bills are consistently higher than usual for a sustained period, it may be the warning that your HVAC system is not functioning efficiently.

women seeing her energy bills

An aged air conditioning system will elevate your electricity usage to unexpected levels, and your bills will skyrocket without you even realising. Repairing an old HVAC system can also seem more expensive than regular repairs. A newer, more efficient system could save you money on your energy bills, which is more efficient than spending a hefty amount on repetitive maintenance.

Getting Tired of the Cycle of Repair:

If you find yourself constantly having to repair your HVAC system, it may be more cost-effective to replace it rather than continuing to pay for repairs. According to the U.S. Department of Energy, the average lifespan of an HVAC system is around 10-15 years, after which it is advised to change the whole system for better performance.

man repairing a vent

If your system is approaching or has surpassed this age, consider replacing it. Newer units are much more energy-efficient and can save you 20-40% off your heating and cooling bill!

Poor Indoor Air Quality:

If you are experiencing poor indoor air quality, such as excess dust or allergens in the air, it could be a sign that your HVAC system is not functioning correctly and may need to be replaced. Another common symptom of problematic air conditioning is that the temperature varies in different places in your living space.

You may also notice sounds and unpleasant smells coming out of the vents, indicating unhealthy air moving through your house and corrupting your healthy living situation. Musty smells could also signify major problems, including mould or other contaminants that could harm your family's health in various ways.

image of bacteria in the air

According to the US Environmental Protection Agency, indoor air pollution can be 5 times more critical than the outside air, which can lead to various dust, bacteria, allergen related concerns to individuals. Inspecting the health of your HVAC system is significant to a wholesome living condition.

Your Home Atmosphere Feels Uncomfortable:

women feeling uncomfortable

If you notice that the temperature around your home is not levelled, despite adjusting the thermostat, it could be a sure sign of some irregularities in the vents above your living. Rather than living in a volatile temperature setup and a humid ambiance, replace the HVAC system with a new one that can help regulate the temperature in your home more effectively.

People with allergic sensitivities and asthma can often suffer concurrent uneasiness due to the poor quality of air running through their vents for a sustained period. The HVAC system needs maintenance and supervision every year for a comfortable living situation.

You Hear Strange Noises from Your System:

If you hear loud or unusual noises from your HVAC system, it could be a sign of a malfunction or a problem with the system. Hissing sounds from the HVAC system indicate that your system might be leaking air through the vents. The leading cause in such cases is often a problem with the furnace oil.

women hearing strange noises from the hvac

Leaks inhibit your system's performance, cause energy waste, and allow dust to build up in your home. When the system makes a rattling noise, it could indicate that the motor components and blades are loose or worn out. When you observe these symptoms, call for professional help to assess the issue and determine if a replacement or repair is necessary.


Despite your close attention and surveying, if you're unsure whether it's time to replace your HVAC system, call a licensed HVAC professional who can assess the condition of your current system and recommend the best course of action, or contact us for expert suggestions and supervision.

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