Established in 1984, Sierra Air Conditioning and Heating is a locally owned and operated company that offers installation and repair solutions for heating, ventilation and air conditioning systems. The company provides preventive maintenance services for transformers, electrical boxes, safety controls, condenser motors, run capacitors and evaporator coils. It offers inspection solutions for heat anticipators, limit switches, system disconnect boxes and carbon monoxide output units. In addition, Sierra Air Conditioning and Heating provides 24-hour emergency and home energy auditing solutions for residential and commercial clients. The company also offers customer support services. It is a member of the Better Business Bureau and is registered by the Arizona Register of Contractors.