Next to the Rock Hill Cleaner, Bala Cynwyd's Glass Doctor is a four-person operation specializing in glass installations for automobiles, homes and businesses. Glass Doctor prides itself on its lifetime warranty and quality service. Some of the installation services offered by Glass Doctor include windows, doors, storefronts, showers, tubs, tabletops and mirrors. As a nationwide chain, Glass Doctor also has six other Pennsylvania locations, with directions and contact information available on its website.