This contract includes a preliminary inspection of your property, where trained refrigeration technicians will take not of the mechanical systems and equipment. A maintenance agreement outlines the steps one party will undertake to insure the upkeep, repair, serviceability of another party's property.Maintenance agreements help reduce your organization's legal liability. A service provider should have insurance to cover them in an accident. A service maintenance contract is a legal agreement between a company and a maintenance service provider. What is a Maintenance Agreement? A contractual maintenance agreement is a contract under which a service provider agrees to perform maintenance services. A maintenance agreement, maintenance plan, or service agreement (Lots of terms, all the same meaning) is a contract set between a contractor and a homeowner. A surprising number of buildings and properties in the United States have mechanical systems that are only inspected after they break down. To put it simply, a home maintenance contract agreement is an arrangement between an individual or organization and a home maintenance company.