" Jonathan Duncklee named 2012 Employer of the Year
by the Greater Mystic Chamber of Commerce!"
→ Click here for more information


Comfort. Quality. Reliability.

The old adage is true: an ounce of prevention is worth a pound of cure. That’s why we encourage all owners to have our HVAC service technicians perform preventative maintenance utilizing one of our prepaid plans. These plans are a flat rate instead of an hourly charge.

When to schedule maintenance:

If your system heats and cools your home:
Perform maintenance in the spring and fall.

Perform maintenance at least once a year, before the cooling season.

Perform maintenance at least once a year, before the heating season.


This agreement includes complete cleaning and a 15-point inspection only of your air conditioning unit. Any additional labor or any parts (filters, belts etc.) needed will be charged to the customer and payable at the time service and repairs have been made.


  1. Install gauges and check operating pressures.
  2. Check all voltage and amperage to all motors with meter.
  3. Check air temperature drop across evaporator.
  4. Check refrigerant charge.
  5. Lubricate all moving parts.
  6. Check belt and adjust tension.
  7. Inspect or wash air filters if needed.
  8. Check pressure switch cut-out settings.
  9. Check electrical lock our circuits.
  10. Check starting contractor contacts.
  11. Check all wiring and connections.
  12. Clean and adjust thermostat.
  13. Check air temperature across condenser.
  14. Check that condensation drain is open.
  15. Inspect and clean (extra charge) condenser coils.

*New Agreement accepted upon inspection of equipment & belts and filters must be kept at owner’s residence or business.

*This is a one-time inspection only. If your unit fails during this agreement period, there will be a service charge for repairs, however, you will receive a 10% discount on all service calls.

*System maintenance by Duncklee, Inc. is required annually to continue your warranty.