Completion Date: October 15, 2011

Cost: $765,800

Architect: Department of Administrative Services, Bureau of Public Works

Description: Our main focus was repointing the exterior masonry of the New Hampshire State House, Legislative Office Building, and Tax Revenue Building. We also did some minor wood restorations to the State House portico, repainted and recaulked the windows at the Legislative Office Building, and did some minor window and repair work on the north face of the Tax Revenue Building.

Since these restorations included dealing with a variety of compositional elements from three unique buildings, the job required knowing their architectural differences. The State House, which was originally built back in the early 19th century, is composed of native New Hampshire granite, and required a mortar mix comprised of lime and sand. The Legislative Office Building, which had previously been used as a post office and courthouse from 1889 to 1967, required a different kind of approach because its primary building material is slate stone. The Tax Revenue Building, an old brick structure with cast stone cornices, required a separate repointing schedule as well.

We used special equipment for the job, in order to capture over 95% of the dust generated during the process. In addition, with the task of washing the State House, we used only environmentally friendly products. We worked closely with the Department of Administrative Services, project managers, and the Bureau of Public Works, to ensure the process went as smoothly as possible. With the health and safety of all pedestrians and building occupants being one of the highest priorities, precautionary measures were taken to create as little disruption as possible during the length of the restorations. Extra attention was also given to protecting the immaculate landscaping around the State House.