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National Statuary Hall, also known as the Old Hall of the House, is the large, two-story, semicircular room south of the Rotunda.
National Statuary Hall, also known as the Old Hall of the House, is the large...

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The Summerhouse on the Capitol Grounds surrounded by pink azalea flowers.
A few ideas to help you in planning a visit to Capitol Hill.

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Painted portrait of Dr. William Thornton
The Architect of the Capitol (AOC) is the builder and steward of America’s...

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Anne Frank Tree and marker planted in the ground in front of the Capitol
Anne Frank Tree on Capitol Grounds

Who We Are

Senate Superintendent's Office

Senate Superintendent's Office

Senate Superintendent's Office

Working around the clock, 24 hours a day, seven days a week, the men and women of the AOC Senate Superintendent Office are dedicated to serving the United States Senate by ensuring the historic fabric of the buildings are maintained while meeting modern and evolving workplace needs.

The Senate Superintendent’s Office, led by Superintendent Takis Tzamaras, is comprised of a variety of skills and trades including the operation of the air conditioning, cleaning, labor, electrical, elevator, fire/electronics, health and fitness facilities, masonry, painting and refinishing, plumbing, sheet metal, subway, furniture, upholstery, and wood crafting.

These skilled tradespersons work behind the scenes providing services to the Senate that include: ensuring a safe and comfortable indoor environment; preserving historic structures; maintenance, repair, and construction; and furnishing and care of office suites.

The three primary Senate office buildings, outside of the U.S. Capitol, total more than 2.7 million square feet and include the Russell, Dirksen and Hart Senate Office Buildings.

Need Assistance?

Contact the Senate Superintendent Service Center 24 hours a day, seven days a week, at 202.224.3141.

Online Service Request (must be connected to Capitol Hill network to access link)

Project Updates

Other projects underway across Capitol Hill.