This Maintenance Contract template is available for use on UpCounsel. A maintenance services agreement is a legal document between two parties in which one party provides ongoing maintenance support for the other party.Download our free Equipment Maintenance Agreement template for your business needs. A preventative maintenance agreement is a service contract designed to help businesses maintain their equipment and avoid costly repairs. SAMPLE Service Agreement. Dos and don'ts of an HVAC maintenance agreement; 7 free HVAC service contract templates; Tips on how to sell your HVAC maintenance program. Equipments Maintenance Agreement - Free download as Word Doc (. Service, the service will be provided under section 10.