Every day we’re inundated with offers for warranties and maintenance programs for everything from smartphones to toasters. Nine times out of ten, it seems like a scam as you can more easily replace whatever you’re covering with the money being used to “protect” it. A heating, ventilation, and air conditioning (HVAC) maintenance plan, however, is that one exception out of ten because you definitely need to regularly service this system. Still not convinced? We’ll go over five reasons below why you should rethink this position.