Bay Associates Group, Inc. (Est'd. 1974) represents leading manufacturers of plumbing and mechanical equipment in Maryland, Virginia, and the District of Columbia. In addition, Bay maintains a comprehensive in-house service division that includes combustion technicians, welders, and electricians. Backed by over 40 years of experience, Bay Associates Group, Inc. offers you a winning combination of quality products, service and in-depth product knowledge. Click below to see the manufacturers we represent.