William E. Walter, Inc. Doug Wyrwicki 1917 Howard Ave., P.O. Box 391 Flint,  MI 48501 Phone: (810) 232-7459 Fax: (810) 232-8698 E-mail: dwyrwicki@williamewalter.com Services Offered • Air Conditioning • Backflow Prevention • Boilers • CAD • Conceptual Estimating • Controls • Design & Build Service • Food Service • Heat - Hydronic • Heat - In Floor • Heat - Radiant • Heat - Steam • Heat - Warm Air • Industrial Pipe • Mechanical Construction Management • Medical Gas • Pharmaceuticals • Pipe Systems • Plumbing • Pneumatics • Process Piping • Refrigeration • Service / Maintenance • Stainless Steel Pipe • Welding • Welding - High Purity