Harder Mechanical

Harder Mechanical is a union mechanical contractor serving the Western U.S. with 90+ years of expertise in complex construction projects.

About

Harder Mechanical is a union mechanical contractor serving the Western U.S. from its headquarters in Portland, Oregon. As a signatory contractor with the Plumbers & Pipefitters Local 290, the company employs skilled union tradespeople committed to quality and safety. With over 90 years of experience in the construction industry, Harder Mechanical has built a reputation for delivering innovative, high-quality mechanical solutions tailored to diverse industries. The company's core services include HVAC, plumbing, piping, process piping, and cleanroom fabrication. Harder Mechanical specializes in commercial, aerospace, and automotive projects, serving clients across the manufacturing, healthcare, and aviation sectors. Their experienced team brings expertise in Lean construction practices, modular fabrication, and custom solutions. Harder Mechanical serves clients throughout the Western United States. Headquartered in Portland, Oregon, the company operates four fabrication shops across Arizona, California, Nevada, and Utah. Their geographic reach allows them to support projects ranging from local renovations to large-scale industrial facilities. The company maintains strong relationships with the Plumbers & Pipefitters Union and is committed to employing trained, certified tradespeople. Harder Mechanical holds numerous certifications, including ISO 9001:2015, and is licensed in multiple states. Their commitment to safety is demonstrated by comprehensive safety programs and an exceptional safety record. Notable projects include the PDX International Airport Terminal Core Redevelopment, where Harder Mechanical delivered innovative, modular solutions to streamline construction while maintaining seamless airport operations. With a team of over 200 professionals, the company has the resources to handle projects of all sizes, from small-scale renovations to large-scale industrial facilities. For high-quality mechanical construction services in the Western United States, Harder Mechanical offers a proven track record, union expertise, and a commitment to safety and efficiency. Contact them to discuss your next project.

Service Area

Service Radius: 500 miles

Project Types

CommercialIndustrialInstitutional

Notable Projects

  • PDX International Airport Terminal Core Redevelopment

Union Affiliations

Licenses

Oregon - CCB 74
Verified
Arizona - ROC 105309
Verified
California - 277745
Verified
Nevada - 0081013
Verified
Utah - 278083-5501
Verified

Certifications & Memberships

Certifications

Association Memberships

Contact Information

Map showing location of 2148 NE Martin Luther King Jr. Blvd., Portland, OR 97212, Portland, OR
Address
2148 NE Martin Luther King Jr. Blvd., Portland, OR 97212
Portland, OR

Company Details

Established
1930
Employees
101-250

Licenses

Oregon - CCB 74Verified
Arizona - ROC 105309Verified
California - 277745Verified
Nevada - 0081013Verified
Utah - 278083-5501Verified

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Data Sources

This information is compiled from publicly available sources to ensure accuracy and transparency.

harder.com(2 pages)• Accessed: 1/13/2026

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