When you need a complex, complete piping solution you can trust, turn to Harder. We specialize in single-source solutions for piping systems, fabricated off-site in one of our five pipe fabrication shops.
Piping Solutions for Every Major Industry

Piping Solutions for Every Major Industry

As one of the largest piping contractors in the United States, we specialize in fabrication and installation of piping for your industry. You name it, we build the complex piping systems to convey it:

  • Steam
  • Gas
  • Chemicals
  • Fuel
  • Water
  • Waste

250,000+ SF of fabrication facilities

Harder operates more than 250,000 SF of fabrication facilities across four states, including more than 14,000 SF of cleanroom shops.

Making Skid and Modular Construction Easy

Harder is nationally recognized for pipe fabrication and custom building process skids and modularized components for all major industries. We are experts in the art of off-site pre-fabrication and bring a tremendous amount of knowledge and experience to these types of projects. With five Harder owned industrial pipe fabrication facilities, and four high purity production cleanrooms, we are strategically located to support your next custom fab project.

Making Skid and Modular Construction Easy

Investing in Fabrication

Investing in Fabrication
Investing in Fabrication
Investing in Fabrication
Investing in Fabrication

Success Driven Relationship and Retention

Off-site fabrication and modularization is not a fleeting trend–it is a vital element of our success. All of our shops are:

  • UA label full-service pipe fabrication facilities
  • Governed by ISO 9001 Quality Controls Programs (our Oregon fab shop is ISO 9001:2015 Certified)
  • Supported by Harder’s internal BIM team with their latest technologies and programs
  • Managed and status updated in real time with bar code tracking in Harder’s PRIME Fabrication Management Program
  • Dedicated to Lean thinking and the flow of information and material that optimizes our performance on every project


NuStar Energy Piping and Installation

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


Marina Heights

Innovation creates a competitive advantage in commercial construction.


Widmer Brothers Brewery Expansion

Harder tackled a complex project for Widmer Brothers, one of the nation's premiere brewers.


Port Westward Unit 2

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


ilani Casino

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

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.

Work With Us

Ready to partner with the fabrication experts on your next mechanical construction project? Reach out to Harder today.