Experience the KEY Difference


Key Construction Services is one of the leading construction companies in the New York Tri State area. The KCS team has years of experience providing superior construction, project management, estimating, and design services to public and private sector clients throughout the region. Key offers a one-stop construction service, providing design-build assistance, general contracting, construction management, and all phases of trade contracting. The company has completed over 120 projects safely, on schedule, and within budget. KCS's reputation for reliability and exceeding expectations has made it the first choice contractor for clients from diverse industries with challenging and mission-critical projects.