Service Contracts Benefit Both Owners and HVAC Service Providers Service contracts, clean and service agreements, or maintenance contracts. All these terms describe scheduled inspection, cleaning, and service of your HVAC system. HVAC service contracts may vary in terms of frequency of visit and scope of maintenance, but 1-2 visits a year is common.  There are benefits of scheduled service for both HVAC companies and homeowners. HVAC companies benefit from the reliability service work,...