In this post, we share a free HVAC service agreement template that you can use to set up recurring service agreements with your customers. Housecall Pro has a free HVAC service contract template that your business can take advantage of today.What is an HVAC Service Contract? An HVAC service contract allows a client to hire an individual or company for the continued maintenance and repairs on their HVAC system. Use our HVAC maintenance contract template to define service schedules, costs, and terms. Draft your contract with ease! A maintenance services agreement is a legal document between two parties in which one party provides ongoing maintenance support for the other party. A maintenance agreement is essentially a contract between you and your HVAC company for ongoing service. This HVAC contract template contains areas for scope of work, client details, pricing, and legal terms. The benefits of an HVAC service contract can be worth the cost, depending on a few factors.