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Corner Stone Contracting is a general construction company based in Elk Grove Village, IL, specializing in a wide range of services including design build construction, construction management, and pre-construction. With a strong focus on client satisfaction, they prioritize building relationships and delivering projects on time and within budget. With expertise in commercial, education, healthcare, and transportation projects, Corner Stone Contracting has an impressive portfolio that includes notable clients such as Metra, Chicago Public Schools, and the Forest Preserve District of Cook County. Their commitment to safety and their dedication to always building and improving sets them apart in the industry.Generated from the website

Petersen Aluminum Corporation was founded in 1965 as a metals service center to the architectural metal industry. The company has a national sales base that allows it to maintain large inventories and cost economies to customers. Petersen Aluminum Corporation has full production facilities in Annapolis Junction, Md.; Tyler, Texas; and Atlanta, Ga. The company offers its catalog as a standard 3-ring binder, Web site and in CD-ROM format. Petersen Aluminum Corporation offers technical assistance and services in areas, such as material selection, finish specification and budgeting. The company provides materials for application in roofing, curtain wall, storefront and trim applications, as well as coping, gravel stops, gutters and downspouts. Petersen Aluminum Corporation maintains its headquarters in Elk Grove Village, Ill.