LJ’s Welding was founded on decades of real-world welding and manufacturing experience. After retiring from John Deere with more than 30 years as a Maintenance Welder, Leo James Kruth (LJ) decided to continue doing what he knew best, solving problems through skilled welding and fabrication. Alongside his wife Marlene, LJ opened the doors to LJ’s Welding in Waterloo, Iowa, turning a lifetime of experience into a family-owned business dedicated to quality, reliability and hard work.
As the company grew, additional family members and long-time professionals joined the team, bringing decades of combined experience in industrial welding, fabrication and repair. Today, LJ’s Welding remains proudly family-owned and operated, supported by a skilled and dedicated team that takes pride in doing things the right way, every time.

LJ’s Welding brings extensive experience working in demanding industrial and manufacturing environments. With a strong background supporting John Deere production facilities, the team understands the importance of precision, efficiency and minimizing downtime.
From custom-built tools and components to specialized fabrication projects, we design and build solutions that improve workflow and keep operations running smoothly. Our fully equipped shop allows us to handle complex fabrication, CNC work, cutting, bending and specialty builds with accuracy and consistency.
No shortcuts. No guesswork. Just proven workmanship backed by experience.
In addition to in-shop capabilities, LJ’s Welding offers reliable mobile and portable welding services. When equipment breaks down or on-site fabrication is needed, our team can come directly to you, whether that’s a jobsite, field, facility or rail environment.
Our mobile services are ideal for:
On-site fabrication and modifications
We know downtime is costly, which is why we focus on fast response times and dependable solutions.


Safety is not optional at LJ’s Welding; it’s a core value. Every project is completed with strict attention to safety practices, proper procedures and industry standards. We hold ourselves to exceptionally high expectations for quality, workmanship and reliability, whether we’re completing a small repair or a large industrial project.
Our welders are qualified, certified and committed to producing work that lasts. We take pride in clean welds, solid construction and solutions built to perform in real-world conditions.
At LJ’s Welding, we believe in repairing when possible, building when needed, and always delivering honest, dependable service. From custom fabrication and industrial support to mobile welding and repairs, our goal is simple: provide solutions that work and earn long-term trust with every customer we serve.

Whether you need custom fabrication, emergency repairs or ongoing industrial support, LJ’s Welding is ready to get to work