Established in 1974, Opp & Seibold General Construction Inc. is a contracting firm. It specializes in commercial construction systems, including steel, concrete and wood frame. Located in Walla, Walla, Wash., the company offers a wide range of services, such as construction and crane services. The construction services are project management, full-time on-site supervision, on-going estimating, long-lead item ordering and continuous value engineering. The company has worked on various industrial, health care, educational and commercial projects, such as American West Bank Waitsburg, Columbia REA Services Center, Hunter Conservatory Whitman College and Whitman College Fitness Center and Pool. Opp & Seibold General Construction Inc. serves the public, private as well as non-profit sectors.