Founded in 1893, Thad Ziegler Glass is among the oldest family-operated glass companies in the United States. The company maintains four offices in San Antonio, Texas, in addition to other Texas branches in Boerne, San Marcos and Kerrville. Originally specializing in paint, wallpaper and plate glass, the company s core products and services encompass car and truck glass replacement, insurance claims, windshield stone repair, road equipment glass replacement, window glass, plate glass, vanity mirrors, custom mirror work, framed mirrors, beveled glass and mirrors, architectural glass and commercial glass.