Aerospace & Automotive

Using state-of-the-art safety, quality, and production processes, we partner with owners early in the design and bring our years of experience to your manufacturing project.
Installing Complex Systems With Zero Impact

Installing Complex Systems With Zero Impact

Our ability to self-perform steel erection, concrete installation, and process piping construction means you can be sure of start to finish constructability before the project begins. Today, the biggest names in aerospace and automotive rely on Harder to deliver consistent quality with zero impact on production or the environment.

250 ASME qualified procedures

Harder has more than 250 ASME qualified welding procedures for virtually every type of process piping material

Robotics and Conveyance

Your industry relies on intelligent manufacturing. Harder applies the best practices and latest technologies to smooth, safe installations. We understand that installation of complex robotic systems cannot disrupt or slow production at aerospace and automotive production facilities. That’s just one reason why we’ve been an industry leader for over twenty years.

Robotics and Conveyance

Aerospace & Automotive Services

Harder Mechanical offers a wide range of comprehensive services to meet the needs of our clients. Our Aerospace & Automotive clients count on us to deliver a high-quality installation of their process systems.

Concrete Installation

A rock-solid foundation for your project—any size, any place. Expert prep and pour for performance you can count on.


End-to-end mechanical installations, delivering the systems you need and the above-and-beyond service you deserve.

Design Services

In-house design-assist services lower costs, boost constructability, and reduce overall schedules for success from the very start.

Equipment Installation

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.

Process Piping

Powering innovation and infrastructure for every industry. Specialized systems you can rely on for the long haul.

Service Department

Our dedicated service team will work with you to create a customized maintenance plan that satisfies the needs of your facility.

Sheet Metal

Harder's sheet metal division provides complete HVAC and industrial duct fabrication and installation for all major industries.

Skids & Modularization

Prefabrication reduces downtime and labor costs while minimizing the impact on your operations, no matter where you’re located.

Structural Steel

Strong, safe, secure—infrastructure that holds to the highest standards. Discover workmanship backed by 80 years of experience.

Tank Installation & Modification

Smooth, disruption-free service for every phase of your project. Our expertise guarantees safety and success.

Virtual Design & Construction

State-of-the-art tech for designs that deliver. We combine leading-edge tools with decades of experience to envision and execute with excellence.


PDX Baggage Conveyor Upgrades

Harder is upgrading the baggage conveyor and catwalk systems within the Portland International Airport during the major Terminal Core remodel.


RA4 Office and Manufacturing Building

This design-build BIM project included over 160,000 LF of piping, all process and wet HVAC, multiple cooling tower installations, and any associated equipment.

Map of Harder locations

Where We Are

From our headquarters in Oregon to our newest offices in Texas, our teams are ready to deliver the highest quality in mechanical construction services wherever they’re needed.

Let Us Join You

Our Aerospace & Automotive industry experts are ready to partner with you on your next project.