Deuchler joins Fehr Graham

Deuchler Engineering, an engineering and environmental firm based in Aurora, joined the Fehr Graham family.

Deuchler owners and Professional Engineers John Frerich and Mark Halm decided to join Fehr Graham because the two firms share the same focus on providing value and innovative solutions to clients' problems.

"We wanted a firm with similar values and business acumen," Frerich said. "As Fehr Graham has grown over the years, it's maintained a small firm feel by being hyper-responsive to their clients, which appealed to us because we are client-focused."

For Fehr Graham, Deuchler matched well with the firm's strategic growth plan. Deuchler, too, will bring electrical engineering and ecological services to Fehr Graham and strengthen the firm's water and wastewater engineering, structural engineering, environmental regulation, compliance, assessment and remediation services.

"We looked at the Fox River Valley market and liked what the Deuchler team has done to improve the quality of life in and around that region" said Fehr Graham Board Chairman Mick Gronewold. "Also, the Deuchler team is a good match culturally for Fehr Graham. Their technical skills and engineering and environmental know-how complement our diverse staff."

Collectively, the firm now employs nearly 200 people.

"We also liked that we will provide our clients more professional resources with Fehr Graham's deep bench of engineers, geologists, landscape architects, and health and safety experts," Halm said. "The best part is the Deuchler staff will remain in the Aurora office. Our clients will have no change in contacts and no disruption in services."

Deuchler has a long history in Aurora. In 1916, Walter Deuchler and his brother, Gustave, started Walter E. Deuchler Co. on LaSalle Street. The firm specialized in municipal engineering, and staff designed streets, bridges, dams, streetlights, water treatment plants and more for the City of Aurora. The business evolved and was known as Walter E. Deuchler and Associates before becoming Deuchler Engineering in 2019.

Deuchler, a Division of Fehr Graham will keep its office at 230 Woodlawn Ave. in Aurora.

About Fehr Graham
Fehr Graham is a premier provider of engineering, environmental and funding solutions for commercial, industrial, institution and government clients with 11 Midwest office locations in Illinois, Wisconsin and Iowa. For more information, visit

About Deuchler, a Division of Fehr Graham
Deuchler believes that excellence in engineering starts with treating people right and creating solutions that make a difference in the lives of our neighbors and the communities in which they live. For more information, visit