Harder Mechanical Contractors

Harder Mechanical Contractors is a fifth-generation family-owned mechanical construction company headquartered in Portland, Oregon, with regional offices in Phoenix, Salt Lake City, Reno, and Richmond. Operating for over 90 years, the firm serves clients across the 11 western states and ranks among the nation's largest mechanical contractors.

The company delivers comprehensive mechanical construction and process systems across diverse industries including semiconductor manufacturing, aerospace, automotive, healthcare, higher education, renewable energy, pulp and paper, refineries, and data centers. Its technical capabilities span wet and dry mechanical systems, process system installation, plumbing, architectural sheet metal, fabrication, controls engineering, piping, iron work, millwright work, and carpentry. The firm also provides Virtual Design and Construction (VDC/BIM) services for design coordination and construction planning.

Harder operates as a union contractor and self-performs all work associated with pipefitters, plumbers, iron workers, sheet metal workers, millwrights, and carpenters. The company emphasizes safety and quality as foundational to its operations, applying industry-leading practices and innovative approaches to deliver efficient construction outcomes across its projects.