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. U.S. Army Corps of Engineers (Louisville District) recently awarded the John C. Grimberg Co. a $19 million contract for a Design/Build Renovation of Army Reserve Center in Salem, Virginia, Phase II The John C. Grimberg Co. received the 2022 AGC Washington Contractor Award: BIM for P-163 Phase III Agile Chemical Facility, Naval Support Facility, Indian Head, Maryland
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.