Superior Window is a third generation, family owned window manufacturing company in Plum, Pa. We manufacture our own hand-crafted, quality windows that guarantee our retail customers a lifetime limited warrantee. We also sell wholesale windows to contractors. Our windows are energy efficient. Those who purchase our windows also qualify for tax credit. All parts for our windows are made locally, in the city of Pittsburgh. Superior Windows and all of our installers are lead certified. Superior Window also installs several other items for your home including: - Entry, Storm and Patio Doors - Siding - Gutters - Soffit & Fascia - Designer Garage organizational systems - Gutter Grip We offer free estimates for all of our customers!