Dennis Banyai, General Manager, Salt Lake City, UT

After attending Dickinson State College, Dennis Banyai served several tours of duty in the US Navy, seeing in-land duty in VietNam, destroyer escort service (USS Meyercord), and as a naval training school instructor in San Diego for three more years. Dennis later retired from the Navy.

Shortly thereafter, Dennis was hired on at Miller Insulation, at the Dickinson, ND, branch. During the ten years he was in Dickinson, he spent much of his time on the road assigned to specialty jobs for the company. The instructor training must have carried over from the Navy, considering that four of the company’s seven current General Managers worked for Dennis out of the Dickinson branch.

In the fall of 1989 Dennis moved to Salt Lake City to start new branch office for Miller Insulation and has successfully run the operation since that time.


Bill Eckroth, General Manager, Bismarck, ND

Bill Eckroth brings extensive Industrial Insulating experience to Miller Insulation. Bill began working as an industrial insulator on the Power Plants in Central North Dakota in 1980. From 1982 through 1985, he worked at North America's only Synfuels Plant, working there during the construction phase as an insulator and also as a field tracker. He continued his work at the Synfuels Plant in the area of insulation maintenance until coming to work for Miller Insulation in 1987. When Bill first joined the company, he was active with various Industrial and Commercial projects around the area. In 1990, Bill became the company’s site supervisor at the Amoco Refinery. He held this position until he was promoted to Bismarck’s General Manager in 1996.

As General Manager of Miller Insulation’s Bismarck Branch, Bill is in charge of managing and overseeing all phases of the branch’s insulation projects, including Residential, Commercial, and Industrial Insulation.


Don Ell, General Manager, Williston, ND

Don Ell, Williston’s General Manager, has been with Miller Insulation since 1982. He began his career as an oilfield insulator in Dickinson, later transferring to Grand Forks, where he worked for a time as a commercial insulator. His final company move was to Williston, North Dakota. Don worked as a Residential, Commercial, and Oil Field Insulator before being promoted to General Manager in 1987.

Don has overseen the tremendous growth in the Williston Branch area while maintaining excelleent customer service and emphasizing safety.


Curt Heiser, General Manager, Fargo, ND

General Manager of Miller Insulation’s Branch Office in Fargo, ND, Curt Heiser brings significant experience directing project managers and overseeing numerous employees throughout the Upper Midwest. Prior to becoming General Manager in 1992, Curt spent 7 years working in the areas of commercial and industrial insulation. The experience and knowledge that was gained led to his current ability to maintain customer satisfaction and safety at all times.

The Fargo branch has completed a wide range of projects, including renewable refineries, agriculture related factories, biomass dryer systems, major commercial facilities, and food industry plants.


Mike Idso, General Manager, Casper, WY

Mike Idso began his career with Miller Insulation working in the warehouse and in the residential sector. He then moved into the area of oilfield insulation and transferred to the Dickinson Branch. Mike spent five years in Tioga, ND until he was transferred to the Casper Branch. Working first as an Oilfield Superintendent, he was promoted to his current position of General Manager in 1989.

The Casper Branch is active in the areas of Oilfield work, Commercial Insulation, and Industrial Insulation.


Brian Janke, General Manager, Dickinson, ND

Brian was born and raised in south central North Dakota. He grew up on a small farm and ranch located between Ashley and Wishek, North Dakota. Shortly after graduating from Wishek High School, Brian moved to Dickinson seeking employment. In Dickinson, Brian worked for a few different employers, but settled in at Miller Insulation. Growing up on a farm and ranch and with a varied work history, it didn’t take Brian’s manager long to recognize his work ethic and knowledge of business. A management position became available and Brian was the first to be nominated for the position.

Brian has been the branch manager for Miller Insulation’s Dickinson branch for over 24 years. In that time frame, Brian has been a leader in the company with excellent safety and sales records year after year. Brian has built a very strong customer base in the residential, commercial, industrial, and oil industries. His strong leadership and business sense have allowed his branch to survive in the toughest of times.


Fritz Messer, General Manager, Cheyenne, WY

Fritz Messer began his career with Miller Insulation in 1986. In 1987, he was promoted to Branch Manager of the Cheyenne Office, and has held this position ever since. Fritz has always believed that a good work ethic and taking care of the client is important on a daily basis.

Over the years, the Cheyenne Branch has completed many commercial and industrial projects in locations including Wyoming, Colorado, Nebraska, Iowa, New York, and Georgia. They have also completed projects in the oil and gas industry in Wyoming and Colorado.


Bob Conrad, Assistant General Manager, Phoenix, AZ

Bob Conrad is a second generation commercial insulator.  He began his career while in high school and worked with the family business, becoming President of the company after his father retired in 2012.  He has experience in commercial, industrial and residential insulation. 

Bob joined Miller Insulation in 2015 as a Project Manager and has relocated to Phoenix to be the Assistant General Manager of the new Phoenix branch.  Bob’s extensive knowledge of the commercial insulation industry has helped him build, and continue to grow, a large client base.

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3520 East Century Avenue | Bismarck, ND 58502 | p 800-337-8145 | p 701-258-4323 | f 701-222-8045

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