We're Experts in Your Industry

Anyone can be an expert in a single industry. Harder’s continuous commitment to expanding our capabilities means we are experts in a lot of industries—including yours.

Our Market Expertise

Each industry has unique construction challenges. Our teams approach your project’s specialized challenges with proven processes developed specifically for you.

We know that by prioritizing innovation and adapting to your needs, we will be a trusted long-term partner to help you achieve your boldest business goals.


South Building Gan Complex

The Owner brought Harder onboard to expand the fab’s general exhaust system so it could support a new tool set and to consolidate several smaller standalone general exhaust systems into one.


ilani Casino

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


NuStar Energy Piping and Installation

For NuStar, we built a new pipeline and installed equipment at their Oregon and Washington terminals.


Port Westward Unit 2

At PGE Port Westward, Harder self-performed everything from the concrete pour to process piping.

Comprehensive Services

Our comprehensive design, fabrication, modularization, and construction capabilities allow us to optimize the delivery process and protect your bottom line. Whether you need a small commercial retrofit, a system-wide upgrade, or a brand new facility, our robust in-house services make Harder your all-in-one mechanical trade partner.

Architectural Sheet Metal

Providing the craftsmanship to show off the aesthetic beauty of the finished material.

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.

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's Chat

Looking for mechanical construction services? Not sure where to start? We're here to help.