DiAN is a family-owned construction services company in Westchester New York that provides high quality, full- service consulting, Rebar Detailing, construction management, design and building solutions throughout the United States. Our skilled project management team advises project owners, design teams, and contractors on issues of cost, value and scheduling so they can maximize their resources. We specialize in the Management, Detailing and Estimation of Concrete Foundations, Superstructures and Site Work.