Cornerstone Structures LLC is a multifaceted General Contracting company operating in New York City and focusing on mid-size development projects. Cornerstone’s principal, James Guerriero, has more than 10 years of experience in commercial and residential construction of both ground up and gut renovations. Cornerstone Structures LLC aims to provide the highest levels of quality and service available while meeting deadlines and respecting their client’s budget constraints. Cornerstone Structures LLC is able to meet all of these demands thanks to their competent and dedicated team of managers, superintendents, and self-performing work force. For more information, please visit our website and/or contact us.