Your modern mechanical construction projects deserve groundbreaking thinking that delivers results. Discover end-to-end solutions grounded in collaboration, safety, and eight decades of proven expertise.
A rock-solid foundation for your project—any size, any place. Expert prep and pour for performance you can count on.
In-house design-assist services lower costs, boost constructability, and reduce overall schedules for success from the very start.
Decades of experience with the most demanding equipment challenges means we get the job done—and we mean the whole job.
Specializing in complete single-source piping solutions that achieve optimal results. You name it, we build it.
Sophisticated, not complicated, for peak performance at any scale. Proven processes keep your projects on track.
Powering innovation and infrastructure for every industry. Specialized systems you can rely on for the long haul.
Our dedicated service team will work with you to create a customized maintenance plan that satisfies the needs of your facility.
Harder's sheet metal division provides complete HVAC and industrial duct fabrication and installation for all major industries.
Prefabrication reduces downtime and labor costs while minimizing the impact on your operations, no matter where you’re located.
Strong, safe, secure—infrastructure that holds to the highest standards. Discover workmanship backed by 80 years of experience.
Smooth, disruption-free service for every phase of your project. Our expertise guarantees safety and success.
State-of-the-art tech for designs that deliver. We combine leading-edge tools with decades of experience to envision and execute with excellence.
The Portland area’s most innovative companies count on us for region-specific expertise. We know your landscape, your industry, and the singular challenges you face—and have been a part of it since we began more than 80 years ago.
We understand the unique challenges of building in the Portland-area environment. Find out how our go-big, go-bold approach can make your next project exceed every expectation.
2148 NE Martin Luther King Jr. Blvd., Portland, OR 97212