Superior Walls System Representatives Are Ready to Serve You


Across the northeastern United States, more and more builders are benefitting from GLSW systems. Talk to one of our experienced sales representatives about how you can integrate this eco-friendly precast foundation wall into your project.

Mike Flath

Mike’s experience with Superior Walls systems spans more than eight years. He is committed to his clients and familiar with all aspects of construction and installation. Mike covers southwest to south-central Michigan, and northern to central Indiana.
Phone: (616) 262-6191

Roger Gritters

Roger has sold the Superior Walls system for more than five years and is familiar with the system's details. He spent 16 years in the poured wall industry before coming to work for GLSW. Roger covers east to northeast Michigan up to the Mackinaw Bridge.
Phone: (616) 293-2878

Craig Richardt

Over ten years ago, Craig was introduced to Superior Walls as a builder and client when he chose them for a townhome project. Based in Rochester, MN, Craig has spent over two years as a Regional, Sales, and Project Manager covering MN, WI, ND, SD, and IA.
"Contact me today, and let’s talk about your next project."
Phone: (507) 269-9885

Karl Kleinheksel

For over five years, Karl has sold the Superior Walls system to many happy customers who appreciate his familiarity with the process. He has also been a licensed builder for over 23 years. Karl covers west Michigan to northwest Michigan, Mackinaw Island, and the entire Upper Peninsula.
Phone: (616) 485-6233

Lon Milligan

Lon worked with Superior Walls as a crane operator for over eight years before moving to sales. He understands all aspects of this innovative system. Lon covers southeast to south-central Michigan and northeastern Ohio.
Phone: (810) 223-8622

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