Not every contractor can execute this challenging work. Experience is everything in your industry. Harder brings unparalleled experience and capability to conveying and crushing systems.

No One Builds Small Mines

This is a tough business unlike any other. You operate in massive, remote facilities in harsh conditions.

Your projects require speed, synchronization, and specialized skills. Combine those capabilities with our unprecedented commitment to safety, and you’ve got the Harder Way.

Experts in Capital Construction, Maintenance, and Shutdown Services

Harder Mechanical has a long history of expertise in the demolition and installation of process piping, power generation, complex equipment, conveying systems, structural steel and foundations for any size mining project.

We are an MSHA Contractor with a world-class safety record, as well as members of Browz, ISNetworld, and Avetta.

Mining Services

Harder Mechanical offers a wide range of comprehensive services to meet the needs of our clients. Our Mining 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.

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.


Kennecott Copper Mine Smelter Furnace Repair

Harder inspected the furnace, then welded chrome moly plates inside the walls to strengthen the furnace. All work was completed within a three-week planned shutdown.

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 Mining industry experts are ready to partner with you on your next project.