"Honest, Reliable Service"
That's what you will get when you call Felix Air Services in San Antonio, TX!

Services at Felix Air Services


We service any brand and type of residential air conditioning system. We charge a diagnostic fee of $39.95 inside 1604 and $49.95 outside 1604. After hours diagnostic fee is $75. Our technicians will tell you what repairs need to be made to get your system working, and will notify you of any other problems that may cause your system to fail in the future. We may offer to correct these problems for you, but we will not pressure you or mislead you in any way. We are there to serve you, and will answer any questions you have.


Preventive maintenance is the best way to ensure that your system is prepared to stand up to the blazing Texas heat throughout the entire summer. The last thing you need is for your air conditioner to break on one of our notorious 110° days! Let us give your system a checkup to make sure it's running properly. We will also inspect your heater in the fall to check for any problems or hazards.

Sign up now for a maintenance agreement with Felix Air Services! For only $120 per year, we will check your system before the cooling season in the spring, and before the heating season in the fall. Give yourself peace of mind knowing that your system is prepared. If your system is in need of immediate repairs, we will make recommendations and offer you a discounted price to make the repairs on the spot. We will also give you a full system report so you are aware of any problems which may arise with your system in the future. All Felix customers on a maintenance agreement will receive a 10% discount on repairs while the agreement is in effect, and $15 off any service call.

Download our Maintenance Report Card to see what you can expect at our maintenance appointment.

During maintenance we will:

Spring Maintenance

  • Verify System Operation
  • Check filters
  • Clean Condenser
  • Check compressor amperage
  • Inspect and tighten electrical connections
  • Check system amperage
  • Check system voltage
  • Check belts and bearings
  • Check inside temperature
  • Clean and calibrate thermostat
  • Check refrigerant pressures and temperatures for proper operation
  • Check metering device
  • Inspect evaporator coil
  • Check drain pan
  • Blow out drain
  • Verify secondary drain pan safety control
  • Check capacitors and contactors
  • Inspect all ducts for leaks or age

Fall Maintenance

  • Check Filters
  • Check carbon monoxide level
  • Inspect flue pipe (vent pipe)
  • Inspect and tighten electrical connections
  • Check heat exchanger for leaks
  • Check evaporator coil (heat pump)
  • Check heat pump mode operation
  • Blow out condensate drain
  • Check blower motor amperage
  • Tighten electrical connections
  • Check inside temperature
  • Clean and calibrate thermostat
  • Clean and adjust pilot
  • Vacuum area around furnace
  • Check gas connections
  • Check for gas leaks
  • Check heat anticipator setting
  • Check combustion air

Spring and Fall Maintenance Checks are available separately for $65. You save 15% with a one year maintenance contract.