Air Conditioning Repair and Maintenance for the Medina, Atascosa County and Greater San Antonio, TX Area

Sub Zero Air Conditioning & Heating accepts most HVAC system manufacturer warranties for home heating and cooling equipment repair. We service most brands of cooling and heating systems. All the parts and labor are 100% guaranteed. We have over 50 years of combined experience. There is not much we have not seen.  Annual maintenance contracts are available.

Please don’t hesitate to call or contact us to schedule preventative maintenance for your heating and cooling equipment system. 
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What is Included in a Scheduled Cooling and Heating System Inspection?

  • Inspect ducts, filters, blower, and indoor coil for dirt and obstructions
  • Diagnose and seal duct leakage
  • Check for refrigerant leaks
  • Inspect electric terminals, clean/tighten connections; apply non-conductive coating
  • Verify correct refrigerant charge by measurement
  • Lubricate motors/inspect belts for wear
  • Verify adequate airflow by measurement
  • Verify correct electric control - heating is locked when the thermostat set for cooling
Air Conditioner — San Antonio, TX — Sub Zero Air Conditioning & Heating

What is Included in a Scheduled Cooling and Heating System Inspection?

  • Inspect ducts, filters, blower, and indoor coil for dirt and obstructions
  • Diagnose and seal duct leakage
  • Check for refrigerant leaks
  • Inspect electric terminals, clean/tighten connections; apply non-conductive coating
  • Verify correct refrigerant charge by measurement
  • Lubricate motors/inspect belts for wear
  • Verify adequate airflow by measurement
  • Verify correct electric control - heating is locked when the thermostat set for cooling
Technician is Checking Air Conditioner — San Antonio, TX — Sub Zero Air Conditioning & Heating

Why Schedule Preventative Maintenance Service for Your Heating and Cooling System?

Sub Zero Air Conditioning & Heating will inspect your existing HVAC system to learn more about its current condition. Our techs will discuss and compare the current condition of the HVAC system, plus compare the repair costs versus the cost and benefits of installing a new home heating or cooling system.  

Please call or contact us today to schedule a service call for a free estimate.
Local residential and commercial A/C & heating service and installation company serving customers in cities, towns, and suburbs in Greater San Antonio, Texas area.
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