The scope of the project encompasses restoration, preservation and conservation work needed to rehabilitate the roof, domes and cupolas, the masonry, the windows and the exterior paving and steps. The "Commonwealth" statue atop the cupola was also restored and regilded - a project not accomplished since 1945. This was accomplished by removing and reinstalling the statue with a helicopter and restoring the statue in a controlled shop environment. One of the principal challenges inherent in the project has been the mandate to restore the building envelope consistent with sound preservation philosophy and at the same time, introduce new elements where needed to improve the integrity of the envelope to withstand the elements for the next 50-75 years. Nowhere were the challenges more difficult than they were with the roof. The glazed "Harrisburg Yellow" tiles covering the north and south domes were installed over a steel purlin system without the use of any deck or membrane. The gutters at the base of the gabled roofs were constructed of a promenade tile with conventional mortar joints. Both were prone to constant leaking.

The solution to the domes involved the replacement of the tile with new custom made tile in multiple colors to match the original tile, installed over a new deck that contains an entirely watertight membrane roof. The exact curvature of the domes was retained so that decorative copper elements could be reinstalled after repair. The solution to the gutters, which are concealed from view at ground level, involved an entirely new design of lead-coated copper drainage basins with a separate roof drain for each basin. The structure of the gutters was completely rebuilt at a lower elevation to prevent water from washing over the granite surfaces or backing up under the new gabled roof areas.

The project has been constructed in phases over several construction seasons in concert with other interior projects at the Capitol with user occupancy throughout the construction.