REPAIR SERVICES ("Agreement. A maintenance agreement outlines the steps one party will undertake to insure the upkeep, repair, serviceability of another party's property.This agreement outlines the duties of both parties, including who is responsible for repairs and maintenance. These services include routine maintenance and replacements. A maintenance services agreement is a legal document between two parties in which one party provides ongoing maintenance support for the other party. "Operating Period" means the period commencing on the Substantial Completion Date and ending upon termination of the term of this Agreement. 6. Air Houston Mechanical offers comprehensive maintenance services to keep your HVAC equipment in top shape. Call today to sign our service agreement! How does a tenant request a repair? Improved efficiency means you'll spend less on your cooling and heating bills.