How often should HVAC systems be inspected for refrigerant leaks?

The frequency of refrigerant leak inspections depends on various factors, including system age, usage, and maintenance history. As a general rule, HVAC systems should be inspected at least annually, with more frequent inspections recommended for systems that are older, heavily used, or have a history of leaks. Regular inspections can help detect leaks early, preventing energy waste, system damage, and environmental harm.