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Harder Mechanical Contractors (HMC) is a privately owned construction company founded in 1934. We started in commercial plumbing and evolved into a major mechanical contractor when asked to help build the first hydroelectric dams throughout the Pacific Northwest. Our experience and industry diversification grew as new industries came to the region, enticed by abundant water and surplus electrical power. Our work and consistent performance quickly recognized Harder Mechanical Contractors, Inc. as a leading contractor for industries like power generation, pulp and paper, oil, gas, chemical, steel, aluminum, aerospace, food and beverage, industrial manufacturing, and now microelectronics, life sciences, health care, higher education, solar manufacturing, data centers, and renewable energies.

Tough jobs, new construction big machinery, round the clock shutdowns and fast track schedules, all became typical work for Harder Mechanical Contractors. Specializing in process related work for both the Industrial Manufacturing and Advanced Technology industries, HMC self performs all piping fabrication and installation, complex equipment installations, structural steel erection, I & C and poured in place concrete work. Today Harder Mechanical is a large nationally recognized contractor, successfully managing projects throughout the western United States. We take great pride in continually maintaining our outstanding reputation for safety, quality and performance on every new project.