Welcome to Gregco Supply! We have been serving Southern Utah and the surrounding area since 1988. We specialize in residential and commercial glass such as glazing, windows, mirrors, shower doors, residential and commercial doors, hardware and storefronts. We offer top of the line Weathershield wood, vinyl windows and doors, as well as the moderately- priced window and door line from Linford. Specialty items such as acrylic glass block and skylites are also available. The most important thing to us is you, the customer, and your satisfaction. We strive to offer the best and most friendly customer service in the region.