Rowland Air

JLC Air is a well-established business since 1991. Our office is located at 2330 west ave L. Lancaster, CA ( The Heart of Antelope Valley ). We specialize in the installation and repair of all makes and models of heating, air conditioning and ventilation systems for residential, commercial and industrial buildings. We have a full parts department located in our office with qualified technicians ready to help you find exactly what you need. We offer same day service and free service calls with repairs. We give free estimates on equipment replacements or new construction. Our company employs five technicians who are all certified in the State of California as well as being E.P.A. certified. These technicians are exceptionally experienced at repairing and installing ALL makes and models of heating and air conditioning units. They have many years of on-the-job training as well as specialty training in the field.

Founded in 1965, Circulating Air provides mechanical engineering solutions and in-house and contractor services. The company serves school projects, public works, residential projects, hotel conversions and government projects. It also offers contractor services to private and public industries and markets. The company operates engineering and drafting department. It also has a service department that offers mechanical contracting and engineering, air conditioning, heating, piping, and sheet metal and electrical services. Circulating Air operates in North Hollywood, Calif. It also has a satellite office in Lancaster, Calif. The company employs over 125 people.