• IMF HQ1 Renewal Project

    This a complete building renovation to include major MEP system upgrades and infrastructure improvements of an existing thirteen (13) story, 1,400,000 square ft., office building that also includes a mechanical penthouse and six (6) below grade levels. The IMF HQ1… Read More

  • Hoover (Herbert C.) Building – Modernization Phases I, II, III & IV

    The Hoover Building serves as the headquarters for the U.S. Department of Commerce and houses 3,000 staff.  Phase 1 included the demolition and rebuild of a 100,000 square foot swing space in Courtyard #6 which enabled the phased renovation to… Read More

  • National Portrait Gallery

    The Old Patent Office Building, the third oldest building in Washington, D.C., has served as a patent office, a Civil War hospital and a federal exhibition hall.  Now part of the Smithsonian Institution, the building houses the Smithsonian American Art… Read More

  • Eisenhower Executive Office Building – Modernization

    The Eisenhower Executive Office Building (EEOB) is located on the West Campus of the White House, housing a majority of the offices for the White House staff.  A National Historic Landmark, the 692,000 square foot building contains mission critical facilities,… Read More

  • Sidney Yates Building Interior Renovation

    This was a design-build project for the renovation of the Sidney Yates Building. The Yates Building is listed on the National Register of Historic Places and houses staff of the U.S. Department of Agriculture’s United States Forest Service. Throughout the… Read More

  • Pentagon Wedge 1 and Phoenix Project

    The Pentagon serves as the headquarters for the U.S. Department of Defense and is one of the world’s largest office buildings. Singleton was selected to help complete a renovation on Wedge 1 that included a complete update to the space’s… Read More

  • FDIC Large Electrical Equipment Replacement

    Singleton is the prime contractor for the replacement of the electrical and mechanical equipment at the FDIC Virginia Square Phase I campus (VASQ I), a fully occupied and operational facility that must remain in service 24 hours a day, seven… Read More

  • Renovation of the Consumer Finance Protection Bureau

    The design-build contract involved the renovation and modernization of the 503,000 square foot, partially occupied Consumer Financial Protection Bureau that is listed on the National Register of Historic Places. The work involved the complete replacement of existing electrical distribution system… Read More

  • NIH Building 10 F Wing Renovation

    This project consisted of the complete phased renovation of 13 floors and a partial renovation of 2 additional floors of an existing active, working hospital on the National Institute of Health Campus in Bethesda, MD.  Each floor consists of office… Read More

  • USGS Headquarters JW Powell Building Fire Alarm Replacement

    The Powell Building is the headquarters of the USGS, which serves as the nation’s premier earth and biological science agency. The USGS works in cooperation with more than 2,000 organizations across the country to provide reliable, impartial scientific information to… Read More

  • Dept. of Labor Perkins Building Fire Alarm Replacement

    The Perkins Building was completed in 1974 and currently serves as the Headquarters to the Department of Labor. It is occupied by approximately 5,000 employees and is located on a 10.35 acre site adjacent to the National Mall and within… Read More

  • National Archives Building Renovation

    The National Archives Building houses some of the most important documents in American history – the Declaration of Independence, the Constitution and the Bill of Rights. Singleton performed a total upgrade and modernization of the complete electrical system and infrastructure,… Read More

  • Site Utility Upgrades- 13.8 KV Primary Electrical Distribution System, Nebraska Avenue Complex

    Design and construction of new 3 feeder spot network 13.8kv primary electrical distribution system including underground utility metering vault, ductbanks, five underground network transformer vaults, connection to existing electrical system and removal of existing electrical system at the occupied headquarters… Read More

  • Main Treasury Building Renovation

    The project was completed in four phases over a period of five years. The major electrical items included three new 13.8kv lineups, three 1500kw network transformers, low voltage draw-out switchgear lineups, and motor control centers, in addition to the building’s… Read More

  • Switzer (Mary E.) Building – Modernization

    This modernization was a complex, phased, and occupied historic renovation of a 1930’s National Register of Historic Places federal office building. The facility houses several federal agencies. One-half of the building remained occupied during the Phase 1 construction period which… Read More