Grand Opening Windows & Doors has been in business for over a decade. With 25+ years experience, we serve homes in the greater Harrisburg area and across Central Pennsylvania. Our company is not a franchise, but rather a locally-owned business, based right outside Mechanicsburg, Pennsylvania. The finest products are used, along with expert craftsmanship to ensure a beautiful, perfect-looking job every time. We offer FREE in-home estimates, and keep in continuous communication during the ordering process and a lifetime warranty on the entire job for your peace of mind!