email John John Kowalski Trade Division Sales Representative John Kowalski has been with K.C. Company for 3 years. He attended the School of Architecture at North Carolina State University. Before joining K.C. Company, he worked for Acorn Structures and has 15 years of experience as a Design/Sales Regional Manager. John and his family are proud to say that they have used Pella windows exclusively in their homes. He and his wife of 25 years have 4 children, and his favorite hobbies include golf, skiing, golf, fishing, and more golf! Back to Meet our Pella Beltsville staff!