When to Replace Your Commercial HVAC Equipment

5 Factors to Determine When a New HVAC System is Necessary

It may be difficult to decide when to invest in a new commercial HVAC system. The following factors can help you determine if replacement is likely necessary or the most cost effective solution. Although HVAC replacement may sound daunting, there are many benefits including the peace of mind of a safe environment and significant energy cost reduction. 


If your HVAC system is over 10 years old, you may need to consider replacement. Depending on use and how well the equipment has been maintained, most systems tend to experience major issues after 10-15 years. Once you reach that point, maintenance and rising energy costs are more costly than replacement. 

Visible Rust or Moisture 

If you start to see rust on your HVAC system, the pipes that run to it, or you have moisture on your walls, this is a sure sign your equipment isn’t performing as it should. Excessive moisture creates an environment susceptible to mold, mildew and the accumulation of dust. For the safety of those in the building, this issue is best addressed immediately. Depending on the source of the problem, replacing HVAC equipment could be the most cost effective solution. 

Odors or Noises

If you notice any unusual smell or noise coming from your HVAC system, it should be addressed immediately to protect the safety of those in the building, air quality and the system itself. Your system, if functioning properly, should operate quietly, any grinding or rattling sounds are a sign of wear.  Depending on the issue and age of the system, replacement may be necessary. 

Uneven Heating or Cooling

If your building has pockets of air that aren’t consistent in temperature, this is a sign that your HVAC system is not heating or cooling your building properly. Depending on the cause of the inefficiency, replacement may be necessary. 

Rise in Energy Consumption

If your energy consumption increases suddenly, your HVAC system may not be running efficiently. If your utility bill doesn’t level out with maintenance, replacement may be necessary. New systems will provide a substantial reduction in energy consumption.