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Plumbing

When your complex plumbing systems sprawl across a large campus or climb multiple stories, Harder delivers the safety, quality, and performance your project demands.
Sophisticated Plumbing Solutions

Sophisticated Plumbing Solutions

Large-scale plumbing systems can get complicated quickly. The last thing you want is a plumbing install that holds up other trade craft. We deploy proven processes that leverage prefabrication and modularization, so you can be confident that a quality plumbing system will be installed safely.

Plumbing Professionals with Unsurpassed Experience

Harder plumbers are professionally trained and highly experienced in commercial, industrial, and residential construction. We provide complete HVAC plumbing services for all the major industries we serve. Specializing in new construction and tenant improvements, we are experts when it comes to everything from high rise, vertical office, and mixed use construction to medical gas, boiler, chiller, and AHU piping and plumbing.

Plumbing Professionals with Unsurpassed Experience

All Under One Roof

All Under One Roof
All Under One Roof
All Under One Roof
All Under One Roof

Success Driven Relationship and Retention

With Harder’s in-house design services and off-site plumbing fabrication capabilities, we are a valuable plumbing trade partner on any project faced with complex challenges. And now with a dedicated service department, Harder is here to support all of your plumbing needs.

Projects

Linus Pauling Science Center at Oregon State

Harder leveraged BIM technologies to build a 3D model of this state-of-the-art facility.

Projects

Marina Heights

Innovation creates a competitive advantage in commercial construction.

Projects

ilani Casino

Harder assembled the Mechanical, Electrical, and Sheet Metal IPD team for this new casino in Southwest Washington.

Projects

Cobalt Rehabilitation Hospital

Harder helped build a new specialty care facility to rehabilitate patients with complex health conditions.

Projects

Aviation Gin Distillery

Harder designed the new mechanical system using owner-provided equipment including stills, condensers, tanks, and conveying lines.

Map of Harder locations

Where We Are

Founded and headquartered in Portland, Oregon, Harder Mechanical offices now span the Western US. With four permanent office locations and four fabrication facilities totaling more than 250,000 square feet, we are well-positioned to serve our clients wherever they need us.

Work With Us

Ready to partner with the experts on your next plumbing project? Reach out to Harder today.