Mason & Hanger is a full-service architecture and engineering contractor that offers construction administration and project management services. It is one of the oldest continuously operating engineering and construction companies in the United States that specializes in the construction of fire protection, antiterrorism and force protection structures. The company provides force projection, munitions, blast design services. Mason & Hanger works in compliance with the guidelines by the U.S. Green Building Council s Leadership in Energy and Environmental Design program. The company is a part of Day & Zimmermann Group, which provides landscape architecture, design, civil engineering and site development services for industrial and government agencies throughout the U.S.

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