Oil Terminals

Make Harder your long-term partner for new facilities, new systems, retrofits, and expansion projects. Pump replacement, pipe and tank repair, installation of all launching and receiving equipment–we do it all.

When Not One Drop Can Touch the Ground

Harder understands the challenges faced by pipeline and terminal operators. There’s a lot on the line at all times. You must consider installation integrity, the facility’s profitability, and the safety of your people as well as the environment concerns. Harder has the specialized knowledge and expertise to deliver quality on all fronts.

OQ/DOT Qualified & ASME/API Certified

Harder Mechanical has OQ/DOT qualified personnel experienced in all aspects of construction at bulk storage terminals.

Our highly skilled craft and management team are certified to ASME, AWS, and API standards. They will exceed compliance expectations for all petroleum pipe welding standards and full X-Ray examinations of pipeline welds on fuel lines.

Harder also maintains long-shore coverage for your over the water projects.

Oil Terminal Services

Harder Mechanical offers a wide range of comprehensive services to meet the needs of our clients. Our Oil Terminal clients count on us to deliver a high-quality installation of their process and storage 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.


NuStar Energy Piping and Installation

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

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