CORNERSTONE DOOR & WINDOW, INC

Cornerstone Door & Window, Inc. specializes in the manufacturing and supply of custom metal window and door systems for federal infrastructure projects. Their technical expertise centers on precision fabrication of commercial-grade metal fenestration products, including double-door assemblies designed to meet stringent architectural and security specifications. The company demonstrates proficiency in material selection, structural integrity testing, and compliance with building codes for government facilities, with recent work involving the production of NOPS-compliant double-door components—indicating experience with standardized federal procurement specifications for durable, high-security entry systems. Their focus on metal fabrication rather than installation suggests a niche role as a specialized supplier within the broader construction supply chain, differentiating themselves through engineered solutions tailored to federal durability and performance requirements. The contractor has delivered products to the U.S. Department of Agriculture, supporting facility upgrades likely tied to rural infrastructure, agricultural research sites, or USDA-operated buildings requiring robust, low-maintenance fenestration. This relationship indicates a track record of fulfilling mission-critical procurement needs within a federal agency known for managing extensive property portfolios in remote or high-exposure environments. Their primary industry focus is NAICS 332321—Metal Window and Door Manufacturing—positioning them as a niche supplier in the building products sector, serving federal construction and renovation programs that demand engineered metal fenestration. They operate within the vertical of government facility modernization, particularly where security, weather resistance, and long-term lifecycle performance are paramount. Cornerstone Door & Window, Inc. is a small business structured as a 2L entity, headquartered in Redding, California. While currently holding no federal certifications, their geographic presence in Northern California supports regional responsiveness to federal project demands across the Western U.S. They maintain a focused market position as a manufacturer rather than a general contractor, emphasizing product quality and specification adherence over broad construction services.