We Think Differently

For 90 years, Harder has approached every challenge as an opportunity to innovate and move the industry forward.

Fearless Innovators

Harder Mechanical has a unique approach to complex, sophisticated projects—we go where the fault tolerances are low and the expectations are high. We leverage customer-driven technology that supports collaboration, transparency, and agility, resulting in better project outcomes.

Our Values

Throughout our history, we have grown our footprint, our services, and our people, always innovating to meet new demands. Yet our commitment and guiding principles remain at the forefront, unchanged since we began in 1934.

Inventive Solutions

Harder Mechanical is built on the belief that there’s always a better way. A smarter way. A safer way. And it’s our job to find it. Since our founding in 1934, it’s never been enough to go with the status quo. We draw on our historic knowledge and our innovative ideas to solve complex problems and improve every step of the process. The best solutions come from experts working together to rise to the challenge. They come from Harder.

Optimal Safety

Through five generations, the Harder family has protected our workers as they would their own family. We look out for one another and make sure every single person gets home safely at the end of the day. Without that, nothing else matters. That’s why we have one of the best safety records in the industry. And why it’s is our top priority on every site, from our offices to our most complicated projects. That’s what makes Harder safer.

Supportive Team

Harder has thrived through 90 years of growth and change by always adapting to what’s next. As we grew from local plumbers to large mechanical contractors, we have maintained our private, family ownership and our family feel. We’re big enough to win the most exciting projects and small enough to know everybody. It’s an unbeatable combination. And at Harder, we’re all on the same winning team.

Trusted Integrity

At Harder, we believe in investing in quality that lasts. And doing it right the first time. Our standards are second to none, and so is our reputation. We build trust by earning it every day on every project. When we put the Harder name on a project, it means we stand behind it – now and in the future. It’s our seal of quality. Because Harder always makes it better.

Unrivaled Reputation

Top companies call Harder first for their toughest construction projects. We have the expertise, experience and resources to build and install the most complex mechanical systems in the most efficient way possible. And we deliver one-of-a-kind solutions to extraordinary challenges across industries and around the world. It’s always easier when you hire Harder.

What We Do

Our expertise allows us to work on some of the most technically demanding projects. We offer modern, comprehensive mechanical construction solutions for innovative companies, industries, and specialty markets.

Our Approach

Harder Mechanical has been at the forefront of process innovation and industry for more than nine decades. Our comprehensive design, fabrication, modularization, and construction capabilities allows us to optimize the delivery process and protect the bottom line.


PDX Baggage Conveyor Upgrades

Harder is upgrading the baggage conveyor and catwalk systems within the Portland International Airport during the major Terminal Core remodel.


ilani Casino

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


Port Westward Unit 2

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

Map of Harder locations

Connect with Harder Mechanical

We're standing by, ready to partner with you on your next project. Reach out today to get started.

Life at Harder

Professional development opportunities, projects with Fortune 50 clients, and industry-leading benefits. At Harder, we put our people first. Join us as we continue to deliver incredible results to our clients.