Tri-Country Air Service
24 Hour Service 601-873-5755
image of an attic's duct system


Service Agreement

Heating and cooling systems have a way of breaking down when the weather is at its worst; on the coldest day of a frigid winter, or during a sizzling summer heat wave; times when your comfort system must work the hardest, and when you need it most.

Regular check-ups will help to maximize the life expectancy of your system; unfortunately, even the best maintenance won't prevent normal wear and tear.


Two inspections of your HVAC system/s per year.

  • Wash and clean condenser and coil.
  • Check thermostat operation.
  • Clean air return cavity and check for non-filtered air bypass.
  • Gas Furnaces: Check safety switches, flame sensors, carbon monoxide.
  • Inspect, tighten, and test all electrical connections and service disconnect.
  • Test condenser and air handler start/run capacitors.
  • Test contactor relay, inspect contacts for burns and pitting.
  • Inspect all safety controls, condensate drain line and pan switches if installed.
  • Check refrigerant pressures, record super heat and sub cool temperatures.
  • Blow-out and apply bleach to condensate and pan lines.
  • Monitor and record condenser fan and air handler blower motor line amperage's.
  • Measure compressor starting and running amps, line voltage, and control voltage.
  • Measure and record temperature split.
  • Customer receives 10% discount on parts, refrigerant, labor, and service call fees.
  • Receive a detailed report of inspection results for record purpose.

Serving Wiggins, Hattiesburg, Gulfport, Biloxi, Lucedale and surrounding Communities