Commercial Buildings

We routinely tackle the biggest, technically advanced, most complex commercial projects.
Complete Solutions for Complex Projects

Complete Solutions for Complex Projects

Harder Mechanical is a full service mechanical contractor, self-performing all the process piping, plumbing, and sheet metal work for Healthcare, Higher Education, Mission Critical, and other sophisticated commercial industries.

We can do it all: from boilers and chillers in operating hospitals to complete med gas systems, fuel oil systems and large central utility plants.

With in-house architectural sheet metal complementing our full array of sheet metal work and a 24-hour service department, we are able to serve our commercial clients around the clock.

A Critical Team Player

We like to collaborate and join the team early on to offer additional value to our clients. Harder’s experienced design and BIM professionals have extensive experience with alternate means, methods and materials, making Harder a valuable partner on Design-Assist, Design-Build, and Integrated Project Delivery (IPD) teams.

A Critical Team Player

Commercial Buildings Services

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


ilani Casino

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


Legacy Emanuel West Tower

Harder provided full mechanical and design-assist services for this new, $210,000,000, seven-story, 330,000 SF hospital expansion.


Marina Heights

Innovation creates a competitive advantage in commercial construction.

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 Commercial Buildings experts are ready to partner with you on your next project.