Air Conditioning Repair:

Trust the pros that know HVAC repair in San Antonio!

At My Father’s Mechanical we are passionate about keeping our customers comfortable in their home or office. We are a local HVAC company focused on excellent customer service and uncommon technical expertise. With an “A” rating with the Better Business Bureau (link to MFM BBB listing – separate tab) we are quickly becoming San Antonio’s favorite HVAC repair company.

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Learn more about MFM Services. You can also Schedule Online or call 210-400-5889


Quality Installation On New HVAC Equipment Whether you need a new system installed or an existing HVAC system needs to be replaced, installing equipment properly is essential to getting the best performance.

Did you know that nearly half of all heating and cooling equipment in U.S. homes never perform to their “advertised” capacity and energy efficiency. The reason or cause is very simple; too many HVAC contractors don’t follow QI (Quality Installation) guidelines. Incorrect installation translates to homeowners paying higher operating costs over the life of the equipment, not to mention unnecessary wear and tear resulting in untimely malfunctions.

Correct installation of new heating and cooling equipment prevents installation problems that can reduce the efficiency of your home or office. The difference in efficiency can mean a reduction in heating and cooling costs by as much as 30%.

My Fathers Mechanical’s quality installation guidelines, are based on the Air Conditioning Contractors of America’s (ACCA) HVAC Quality Installation Specifications, working with these industry best practices helps ensure customer satisfaction by makings sure that your new equipment is:

  • Correctly sized to meet your home or office needs
  • Connected to a well-sealed duct system
  • Operating with sufficient airflow in the system
  • Installed with the proper amount of refrigerant

Proper Sizing of Equipment

Installing the right size equipment for your home is essential to getting the best performance for your heating and cooling equipment and maintaining the comfort you deserve. Some believe that bigger is better when buying new equipment, but a system actually operates best when each component is properly sized. Oversized equipment may cycle on and off more frequently, which can make the home less comfortable and shorten the equipment life. In the ENERGY STAR QI program, contractors will take measurements of your home then do calculations to determine the appropriate size for your air conditioner, furnace or heat pump.

Sealing Ducts

Ducts circulate air from the furnace, central air conditioner or heat pump throughout the house. Often ducts have damage or poor connections that leak the hot or cold air and waste a lot of energy. Sealing ducts can greatly improve the efficiency of your heating and cooling system. MFM HVAC technicians make necessary repairs to minimize losses. (A third party company can be hired to measure before and after repairs to actually see the improvement.)

Optimizing Air Flow

To operate well, a heating or cooling system needs to have the proper volume of airflow. Should the airflow be too high or too low; it is likely to make your home or office uncomfortable and increase utility bills.

Proper Refrigerant Charge

It is important for an air conditioner or heat pump to have the correct amount of refrigerant, or correct refrigerant charge. An improperly charged system may consume more energy and provide less dehumidification. That is why we recommend timely seasonal Tune-Ups or better yet Comprehensive HVAC coverage

The charts below show the losses in common residential HVAC systems. Quality HVAC installations by MFM ensure delivery of the equipment’s full potential.

Typical Furnace Installation

Typical Air Conditioner or Heat Pump Installation

energy lost due to leakage 15% ;  Heating Delivered 85%Energy lost 27% ;  Cooling/Heating Delivered 85%