Tackle the most complex construction challenges with us

Delivering comprehensive, safety-focused, and high-quality mechanical construction services to diverse industries across the Western U.S.
Two copper tanks in a distillery installed by Harder

What We Do

Harder delivers expert mechanical solutions tailored to your industry’s unique challenges, combining proven processes with innovation to achieve high-quality, cost-efficient results.

Orbital welding on high-purity piping in the cleanroom in a Harder fab shop for use in the semiconductor industry

How We Do It

At Harder, excellence is driven by industry-leading safety, quality, fabrication, and Lean practices, all carefully integrated to deliver smarter, safer, and more efficient results on every project.

Who We Are

For over 90 years, Harder has built a culture of innovation, integrity, and teamwork, pushing boundaries with inventive solutions and a people-first mindset to create lasting partnerships.

Commercial – Aerospace & Automotive

PDX International Airport Terminal Core Redevelopment

As a critical partner in the TCORE project at PDX, Harder delivered innovative, modular solutions to streamline construction and maintain seamless airport operations.

200,000+

linear feet of piping installed

“Harder Mechanical provides a breadth of opportunities, from locating to a new project in a different state to unique challenges working in a variety of industries. The diversity of opportunities, combined with great team members, has contributed to my individual success which makes every project rewarding.”

Scott Sexton
Regional Manager
Map of the United States with Harder's office locations pinpointed.

Connect with Harder Mechanical

From our headquarters in Oregon to our offices and fab shops across the western United States, our teams are ready to deliver the highest quality in mechanical construction services wherever they’re needed.