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Rhode Island State Capitol

John Canning & Co. projects at the Rhode Island State House in 1998 and 2017 involved the conservation, cleaning, and restoration of the magnificent dome murals, decorative painting, and architectural gilding. 

The dome of the Rhode Island State House is the fourth largest self-supporting marble dome in the world.

In 1998, John Canning & Co. acted as the general contractor coordinating all work and trades in the rotunda while the building remained open to the public.

Areas were exposed, revealing 1895 painted designs and color palette. The original scheme was recreated and the fine art murals cleaned.

In 2017, John Canning & Co. returned to restore areas of the mural damaged by water intrusion and the surrounding gilded ornamental plaster moulding.


1997 Rhode Island State Historic Preservation Award

2017 Rhody Award for Historic Preservation