Experience That Performs in Demanding Conditions

Established in the early 1940s, Anning‑Johnson has been a trusted contractor in the Washington, D.C. metropolitan area for more than 85 years. Today, the district specializes in data centers, high‑end tenant improvements, complex acoustical interiors in dense, regulated, and often occupied environments.

Known for precision, coordination, and disciplined execution, the Washington, D.C. team delivers reliable results from bid through completion. Our expertise also extends into the Richmond metropolitan area, supporting technically demanding projects with the same commitment to quality and performance.

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