How often should HVAC systems typically be serviced?

The correct answer is that HVAC systems should typically be serviced once a year. Regular annual maintenance is crucial for ensuring that the system operates efficiently and reliably throughout its service life. This annual servicing often includes tasks such as cleaning or replacing air filters, checking and calibrating thermostats, inspecting and tightening electrical connections, lubricating moving parts, and checking refrigerant levels.

Conducting these maintenance tasks annually helps prevent unexpected breakdowns, reduces energy consumption, and extends the lifespan of the equipment. Additionally, it ensures the system runs at peak efficiency, which can lead to lower utility bills and a more comfortable indoor environment.

While monthly servicing may seem like a proactive approach, it is generally not necessary for most residential and light commercial systems, which can lead to unnecessary expenses. Conversely, servicing every 2 or 5 years may result in significant issues going unnoticed, ultimately leading to costly repairs or premature system failure. Therefore, an annual service schedule strikes the right balance for maintaining system health and efficiency.