Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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This bronze statue of noted abolitionist Frederick Douglass
This bronze statue of noted abolitionist Frederick Douglass was dedicated by...

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View of the U.S. Capitol Building from above at dusk
In order to ensure the safety of visitors and staff and to preserve the...

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An AOC worker mowing the grass on the grounds of the U.S. Capitol
The roles and responsibilities of the Architect of the Capitol cover an...

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Susan Dworkin photo.
Learn about climate change and staple foods at noon on October 24 at the U.S...

Capitol Superintendent's Office

AOC staff from the Capitol Sheet Metal Shop make repairs on the roof of the Capitol.

The AOC Capitol Building Superintendent's Office, led by Superintendent Carlos Elias, is responsible for the day-to-day structural, mechanical and domestic care of the Capitol Building and the Capitol Visitor Center.

The Capitol Building Superintendent’s office is comprised of a number of shops that include carpentry, electrical, elevator, labor, heating, ventilation, air conditioning, refrigeration, masonry, painting and decorating, plumbing, and sheet metal division, and flag office.

These skilled tradespersons and laborers work behind the scenes providing services that include: ensuring a safe and comfortable indoor environment; preserving historic structures; flying flags over the Capitol; and special events set-up.

Services available through the Capitol Service Center:

  • Furniture and cabinet installation
  • Leveling of document displays
  • Keys and lock-out service
  • Heating and air conditioning
  • Cleaning and trash removal
  • Recycling
  • Plumbing and electrical
  • Special events set-up
  • Office and decorative painting
  • Pest Control

Need Assistance?

Monday–Friday
6 a.m. – 11 p.m.*
(*Will remain open if Congress is in session.)

Saturday–Sunday
8 a.m. – 4:30 p.m.

Contact the Capitol Service Center at 202.228.8800.

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

Project Updates

Stay up to date on projects underway at the Capitol.