ThirdWall Construction Employee Directory

ConstructionMaryland, United States11-50 Employees

ThirdWall Construction is a mid-sized general contracting firm based in Gaithersburg, Maryland, operating within the Washington, DC–Baltimore metropolitan region. With more than four decades in business, the company traces its roots to Therrien Waddell and has built projects and forged industry partnerships through a sustained commitment to excellence. It serves clients across the DC–Baltimore market, delivering general contracting services for a variety of projects. The organization emphasizes respectful collaboration and high-quality craftsmanship, contributing to its standing as a trusted participant in the construction industry.

The firm embraces a theater-inspired concept of the 'third wall' as a guiding metaphor for breaking through conventional construction boundaries to deliver dynamic and innovative spaces. Its stated mission is to bring clients' visions to life with creativity, precision, and an enduring commitment to excellence.

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