top of page


Regular Service Saves You Money – Here’s How:

Regular service keeps quality performance up while holding operating costs down. This is the service philosophy you use with your vehicles, so why should your HVAC equipment be any different? As utility rates continue to rise, you’ll want to get the best “mileage” out of your system by keeping it running at peak efficiency.

Annual Maintenance Plans to Fit Your Needs & Budget

Dorton Bros, Inc. is proud to offer these popular annual maintenance agreements. Choose the one that suits your particular needs, or call Dorton Bros Heating & Air today for a free consultation on the best package for you. See the checklist below to see which ones are applicable to each package.

If you’re looking for a new air conditioning, Dorton Bros. Heating and Air Conditioning has a low price guarantee. Learn more about the top 10 reasons to buy from us!

20-Point Plus Checklist

Includes all of the points below; non-bolded items are part of our 20-Point Checklist:

  1. Check system for proper refrigerant charge

  2. Check compressor and fan amps

  3. Check and clean condenser fan

  4. Check capacitors

  5. Check contactor points

  6. Brush out electrical cabinet

  7. Check all caps and valves for seals and/or proper fit

  8. Check thermostat operation and mounting plus damper open/close

  9. Check blower amps

  10. Check heat strip amps, circuit components, and safeties

  11. Check/evaluate evaporator coil for buildup

  12. Check blower wheel for buildup

  13. Check all electrical connections and wires

  14. Change/wash filter

  15. Check temperature splits

  16. Lubricate all moving parts where applicable

  17. Flush and vacuum drain line/pan and evaluate drainage

  18. Check float switch operation

  19. Clean equipment exterior

  20. Check final performance and report necessary improvements

  21. Clean vegetation, etc. from outdoor unit

  22. Check and clean condenser coil

  23. Check crankcase heater

  24. Check reversing valve operation

  25. Check for excessive vibration

  26. Check condenser level

  27. Check safety controls where applicable

  28. Clean/dust return air grills

  29. Treat Air Handler/evap coil/case coil

  30. Treat plenum with micro-band and check for leaks


bottom of page