In our HVAC Books we discuss two basic types of service agreements for HVAC Companies. Preventive maintenance (PM) and full coverage agreements. There are hundreds of variations on these two basic themes.
Some common practices have been developed over the years.
- One service agreement is written per location.
- Service agreements are written and tracked by address. Owners change, but the address is permanent.
- For ease of accounting it is a good idea for service agreement pricing to be devisable by 12. This will eliminate the cents is monthly calculations.
- Service agreements terms should be written to expire on at the beginning of the summer season. Customers are most likely to renew at this time of year.
Residential Preventive Maintenance Agreements
A preventive maintenance (PM) Agreement provides the customer (2) precision tune-ups annually, priority service and a 10% to 15% discount on all parts and labor. Emergency service will be billed at the normal rates or a flat rate, less the discount on parts and labor.
Replacement units do not qualify for the discount.
This agreement can be 1, 2, or 3 years and the full amount is prepaid by the customer. All emergency calls performed under this agreement will be paid by cash, check, or bank card. On the month prior to expiration, the renewal agreement is mailed. Include the agreement in duplicate, plus a cover letter and a self-addressed stamped return envelope for the return of the signed agreement and payment. Any renewals not received within 30 days of the mailing should be forwarded to the Sales Department and a Salesperson will renew the agreement.
Residential Full Service Agreement
The Full service is a PM agreement plus insurance for repairs. The agreement includes two precision tune-ups for all heating and air conditioning equipment. The agreement also includes priority service, repair for any emergency breakdowns, parts and labor. An annual fixed amount is prepaid by the customer. An option for monthly payments made by automatic credit card charge is an option. The HVAC Companies will handle all inspections and repairs just like an insurance policy. The agreement can be terminated by either party at any time, as long as full payment has been made.
Items covered by the Full Service Plan are:
- Furnace and Flue Dampers
- Circuit Breakers
- Air Conditioner
- Air Handler/Furnace
- Electronic Air Cleaner
- Heat Recovery Unit
- Thermostat
- Electrical Low Voltage Wiring
- Condensate Piping – Condensate Pump
- Refrigerant Piping
- Humidifiers
The plan covers only the equipment specifically listed on the agreement.
Items not covered by the Full Service Plan are:
- Ductwork
- Grilles and Registers
- Secondary Drain Pans
- High Voltage Wiring
- Water Piping
- Casings, Cabinets and Base Pans
- Water, Oil Gas & Flue Piping
- Vent and Chimney Caps
These items will be maintained but not replaced under this agreement. Repairs required as a result of abuse, fire, water, lightning, accidents, damage as a result of non-operation or malfunction of the equipment are not covered.
A Full Service Customer should be invoiced 45 days prior to the July 1st renewal date (May 15). If the invoice has not been paid by July15, the Sales Department should be notified so the appropriate salesperson can attempt to renew the agreement. If the amount due is not collected by August 15 at the latest, the Agreement should be cancelled. Any costs incurred for services rendered between July 1 and August 15 on a cancelled agreement should be invoiced at normal rates.
Sample Service Agreements can be found in the HVAC Books apendix.

