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About SIGAL; The Jefferson Hotel

SIGAL Construction Corporation (SIGAL) has provided construction services in the Washington, DC area since 1977. As one of the area’s leading construction firms, SIGAL has a documented history of providing clients with award winning preconstruction, general contracting, construction management, Design-Build, and sustainable construction services. In addition, we helped pioneer a sustainable future by being a founding partner of the United States Green Building Council (USGBC).

SIGAL’s project delivery system is flexible, tailored to an owner’s preferences and needs from preconstruction and construction management to design-build and even consulting services. SIGAL’s diverse project portfolio includes a wide variety of commercial and institutional clients including developers, institutions of learning (K-12 and higher education), Federal and municipal agencies, law firms, corporations, hotels, technology and mission critical firms, biotech companies, healthcare providers, multi-family housing, and associations/nonprofits.

The keystone to SIGAL’s success is its employees. Their commitment and diligence to deliver excellence has given SIGAL a well-earned reputation of a firm capable of delivering landmark projects in the Washington Metropolitan Area. Our core values of Teamwork, Creativity, Integrity, and Responsibility guide all of our efforts. We strive to achieve excellence through an innovative, creative, and collaborative solutions approach to our work.

SIGAL applies our core values not only to projects, but to push and improve our industry and the communities we live in, partnering on projects that provide opportunities to pioneer new construction methods and innovative, sustainable solutions.

Over the years, the SIGAL Team, including our subcontractors, have been honored to receive numerous industry awards for excellence in construction, sustainability, and craftsmanship.