Wittichen Supply Company 1732 Creighton Avenue S.E. Decatur AL 35601-5990 is a family owned and operated wholesale supply house of HVACR parts equipment and supplies. They offer a large inventory of HVAC and refrigeration supplies as well as customer friendly employees and competitive pricing. AREAS SERVED: Wittichen Supply operates 25 locations throughout the Southeastern United states including Alabama Georgia and Florida. BRANDS CARRIED: Wittichen Supply carries name brand HVAC supplies from Fujitsu Ruud Clamatemaster Larkin Reznor Hart & Cooley EMI Flatplate Bard Copeland Sporlan Honeywell Johnson Controls White Rodgers Robertshaw First Company and many more.