Annual maintenance schedule:
AC inspection: April or early May (before heavy use)
Heating inspection: September or October (before cold weather)
Additional inspection needed if:
System is over 10 years old (biannual)
Noticeable efficiency decrease
Strange noises or smells
Before buying or selling a home
After major storm or power event
System hasn't been serviced in 2+ years
Why it matters:
Prevents 85% of major breakdowns
Maintains warranty coverage (most require annual service)
Extends equipment lifespan by 40%
Reduces energy costs by 15-20%
Identifies minor issues before they become expensive repairs
Regular maintenance costs $225. Emergency repairs average $400-800. Prevention pays.