Founded in 1975, Rainier Welding began as a fabricator of fireplace inserts and freestanding stoves under the name “Rainier Iron Works”. In 1980, the company moved to its current location in Redmond, Washington and began to performing projects as a general contractor, fabricating steel structures in its shop and installing them in the field for various government entities, including The University of Washington, The Cities of Seattle and Tacoma and The US Army Corps of Engineers.

In 1989, the company shifted its focus towards steel fabrication for the highway, industrial and commercial markets. As the company grew, Rainier’s capabilities in value-added engineering, high-spec welding and large material handling made it well suited to fabricate for other applications, such as the marine and bridge markets. Over the last 45 years, Rainier Welding has successfully fabricated thousands of projects that have enabled America’s infrastructure and commerce to thrive.

Rainier has a reputation for reliable, quality steel that brings back customers time and time again. In honor of that contribution, Rainier has received numerous awards from the National Steel Bridge Alliance (a division of the American Institute of Steel Corporation – AISC), including The 2009 Award of Merit for its work on the Sauk River Bridge; The 2012 Prize Bridge Award in the Long Span Category for its work on the Nooksack River Bridge and The 2014 Prize Bridge Sustainability Commendation Award for its work on the Keene Road Bridge.

Today, the company continues its long tradition of tackling some the toughest, most complex projects on the West Coast.


At Rainier Welding, our values are the roadmap that guides us – every decision, every action, every interaction.
They are the non-negotiables we live by.
Quigg Bros Willipa Hills State Park 1

INTEGRITY: Uncompromising honesty and ethics. Simply put, we treat others like we want to be treated.

ACCOUNTABILITY: We take responsibility. We do what we say we’ll do, when we say we we’ll do it.

SAFETY: We don’t compromise the safety of our people – for ANYTHING, EVER!

PERSEVERANCE: Success is a mindset, not a destination.  Face difficulty with grit, hard work and determination, without regard to discouragement or previous failure.

TEAMWORK: We cooperate, making personal goals secondary to customer success. Together, we can achieve what an individual alone cannot.


We are proud of the deep relationships we have cultivated with our partners over the last 45 years.  We know that we could not exist, much less thrive, without the trust and responsibility they have placed with us.  It is this pride and customer-first mind set that keeps our customers coming back year after year.

What our customers say about us.