A General Contractor Serving the Washington, DC Metropolitan Area Since 1951
About Us News Awards
A family-owned and operated company, the John C. Grimberg Co. has served the Mid-Atlantic region providing complete general and mechanical contractor services to federal, state, and private offices since its founding in 1951. Department of the Navy recently awarded the John C. Grimberg Co. a $17.8 million contract to construct a new building at its Naval Support Facility, Indian Head, Maryland. The John C. Grimberg Co. received the 2018 AGC Washington Contractor Award: Public/Government & Institutional Projects Under $5 Million Category for Design/ Build Chemical Room Implementation U.S. Capitol Power Plant, Washington, DC
A Unique Commitment to Green Construction

Via in-house Leadership in Energy and Environmental Design (LEED) construction expertise and a unique commitment to sustainable principles, the John C. Grimberg Co. specializes in delivering state-of-the-art, high-performance facilities and systems that meet and exceed LEED Green Building objectives.