A.O. Reed & Co., a Legence company, is the nation’s most reputable mechanical contracting company built on excellence, integrity, customer satisfaction, and top-quality expertise. Having over a century of experience in the construction industry, A.O. Reed takes pride in building and servicing memorable projects throughout Southern California. We have gained the trust of top customers and clients by providing cost-effective budgets, a team of professional engineers, and exceptional service while maintaining aggressive schedules.