For over 50 years, Atrium has dedicated itself to building a solid company, with a national presence and an uncontested reputation for quality, selection and service. Today, we are the largest, most widely recognized manufacturer and distributor of residential vinyl and aluminum windows and patio doors. We have the product to meet the specific needs and preferences of our customers, which include the industry’s leading builders, retailers, home centers, lumberyards, contractors, designers and architects.