Fill out all the pertinent information on the form and compile all of the required documents. 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. Contract Terms and Conditions. 1. DEFINITIONS. The Agreement is a nationally recognized tool that helps contractors provide quality, consistent service to their customers throughout the country. The technician performing the work fills out the service invoice and submits it to the contract-designated person before leaving the site. DESCRIPTION. The focus of this article is ongoing maintenance contracts such as those dealing with landscaping, snowplowing, or general building maintenance.