Contact A.J. Michaels for additional details and pricing for your specific system. Commercial Service contract prices will be determined with an on-site visit depending on the type of equipment you have.The cost of an HVAC maintenance contract is typically less than the charge for two individually scheduled maintenance services alone. This agreement includes 2 visits per year for normal maintenance. It is agreed that all work under this agreement will be completed during normal work hours of am to pm. , Monday through Friday, unless otherwise. McCrea offers residential and commercial HVAC service contracts. Download Maryland HVAC Service Contract template, modify and send for signing using BoloForms Signature. We also include a very nice looking Precision Tune-up and Professional Cleaning document for a gas heating system, heat pump, and air conditioning unit. CroppMetcalfe Silver Service Agreement for maintenance and repair in the Virginia, Maryland, and Washington DC areas.