Stone preservation is a top priority for the Architect of the Capitol as nearly every building is enveloped in stone and all have problems.

To address this stone pandemic across the Capitol campus takes a team of historic preservationists, structural engineers and stonemasons, among others. The men and women of AOC are in a race against time as the infrastructure rapidly crumbles and deferred maintenance projects accumulate.

Stone Preservation on Capitol Hill

Ongoing Stone Projects

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Leave No Stone Unrestored

All around the U.S. Capitol campus, there is something that you cannot avoid seeing as you look at the historic buildings: stone.

It's About Time

Time has taken its toll on the United State Capitol's stone, but our preservation effort will restore even the finer details, hand-carved by artisans.

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