As one of California’s premier glazing subcontractors, BAGS exceeds client expectations with superior quality-control procedures, outstanding design, and maximum efficiency. BAGS is one of few vertically integrated glazing subcontractors in the U.S. We design, engineer, and manufacture our own proprietary unitized curtain wall systems in-house, allowing for complete quality assurance every step of the way. Bagatelos Architectural Glass Systems, Inc. remains owned and operated by Chris Bagatelos, who established the company in February of 1999 in Sacramento, California.