No refinery job is too big or complex for Harder to deliver quality craftsmanship on budget, on schedule and safely.

Nationally Recognized for Safety, Quality, and Performance

Harder Mechanical is one of the largest industrial piping contractors in the United States. Our refinery construction services include all plant maintenance and turnaround work, as well as all your large and small capital projects.

We are a general contractor self-performing all piping and equipment installations, steel erection, and concrete foundation work. We build safety and quality into every aspect of every project and we are experts in pre-task planning and pre-fabrication.

As part of Harder's complete line

of refinery construction services, we own and operate an Idrojet Superkid 28 Tube Bundle Extractor–available for your next heat exchanger project.

When Safety Is Job One, Two and Three

Each refinery project is unique and challenging. Although no two jobs are the same, all demand quality results at a safe worksite. Whether you are building a new facility, updating an old one, or repairing large-scale damage, we have the depth and breadth of expertise to meet your long-term needs.

Refinery Services

Harder Mechanical offers a wide range of comprehensive services to meet the needs of our clients. Our Refinery clients count on us to deliver a high-quality installation of their refining 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.


Chevron Refinery Turnarounds

Our team planned and executed back-to-back pull feed dates for two key projects: the Eight Plant Turnaround and the #2 Sulfur Recovery Unit (SRU) Turnaround.


Refinery Crude Unit Upgrade and Expansion

Building in and around a live unit is no problem for Harder Mechanical.

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