About

About KWH Constructors, Inc. KWH Constructors is an AISC-certified international structural steel erection specialist based in the Pacific Northwest. Founded in 1989, KWH excels in erecting complex structures, including movable, long-span, and cable-supported bridges as well as distinctive buildings, seismic retrofits, and specialty structural projects. KWH integrates construction know-how with in-house engineering expertise from Somerset Engineering to develop custom erection schemes, temporary works, and specialty equipment, expanding KWH’s capabilities in heavy lifting, jacking, launching, and engineered erection.