Callahan's Gas & Appliance is a full-service propane company and retail center providing all your residential, and commercial heating, cooking, and entertaining needs in Centreville, MD and surrounding communities for over 3 generations. Locally owned and operated, we provide propane gas sales and delivery, rentals, tanks installations and much, much more. We are your area-favorite retail center for all types of propane appliances, accessories, parts and more. We also carry propane water heaters. Call us today for more information about our special easy-payment options. Our licensed, bonded, and insured technicians offer a 2 year warranty on workmanship.