Oldcastle Surfaces, Inc. sells, fabricates and installs Natural stone, Quartz, Solid Surface, and Forzastone shower systems. In addition to our countertop and shower products, we offer Grohe faucets, kitchen and vanity sinks, and tile for all of your backsplash needs OSI has 6 locations, servicing retail customers, kitchen and bath dealers, builders, remodelers, and the commercial market in the southeastern US. Recently, OSI-Winston-Salem relocated its operations into a new 45,000 sqft facility in Kernersville.