A-Z Heating, A/C & Refrigeration

A-Z Heating, A/C & Refrigeration is an HVAC company that handles air conditioning and heating installation, repair, maintenance, boiler service, pre-season tune-ups and annual inspections for both homes and commercial properties. The company says its licensed technicians have at least 10 years in the trade and can service all makes and brands of equipment.

The company offers flat-rate pricing rather than hourly billing, and free estimates for new equipment installs. It also sells maintenance contracts and warranty registration. Emergency service is available 24 hours a day, every day of the year, and regular office hours run Monday through Saturday. The office is at 1012 Leslie Ave in Catonsville, and the company lists Randallstown and Bowie among its customers' towns.