Sun Prairie

Our Sun Prairie Service Center is responsible for servicing central and southwestern Wisconsin, northern Illinois and eastern Iowa. It is home to our Special Services team, who is responsible for all our bed bug services across the upper Midwest, and the Inside Sales Representatives, who are responsible for finding the right program to match our clients’ pest control needs.

For more information call: (608) 825-1000 

Wil-Kil Regional Manager Terry Crop.

Regional Manager - Terry Witter

Terry has been with Wil-Kil since 2015, but has been in the pest control industry since 1993. His approach to pest management is to do whatever is needed to make customers happy and want to stay with you for life!

Terry believes that pest management plays a key role in keeping the food we eat safe. He knows in today’s global economy, food can travel across the continent or even across the world before it reaches your kitchen table. That can provide different pest challenges as we try to avoid the threat of insects, rodents and the diseases they carry from contaminating our food.

When asked what his favorite thing about working for Wil-Kil, Terry responded “The people!”

“We are in the pest control industry, but ultimately, we are in the people business. Regardless of whether a customer is having their first service, or has been with us for years, I enjoy the relationships we build with our customers. Some of the best friendships in life are created through work.”

Terry takes pride in attaining goals. This is only possible by having a talented team that is positively motivated to get results. “What we do is not always easy, so I feel that it’s important to celebrate our successes and not take them for granted.”

When Terry isn’t working, he is spending time with his family. The Witters are a sports family, and both Terry’s son and daughter enjoy competing in a variety of sports. “I enjoy watching them compete, but I enjoy watching the process they go through to get to that even more – the commitment, dedication and drive they have to reach the best of their ability.”

Wil-Kil Service Manager John Aeschlimann.

Service Manager - John Aeschlimann

Jeff Daane

Service Manager - Jeff Daane

Bert Duell

Service Manager - Bert Duell

Latest News

Sun Prairie Star: Wil-Kil Pest Control Celebrates Nine Decades in Business

September 22, 2014 | Categories: News, Sun Prairie

Wil-Kil Pest Control may be an industry leader serving thousands of clients across the upper Midwest, but it still has plenty of small town hospitality and accessibility. And those qualities are evident in the fact that Wil-Kil this month celebrates its 90th year in business.



Monday-Friday: 7:30AM-5PM


2803 Capitol Dr, Ste 3
Sun Prairie, WI 53590

Service Area Counties


Adams, Columbia, Crawford, Dane, Dodge, Fond Du Lac, Grant, Green, Green Lake, Iowa, Jefferson, Juneau, La Crosse, Lafayette, Marquette, Monroe, Racine, Richland, Rock, Sauk, Vernon, Walworth, Waushara


Boone, Carroll, Jo Daviess, Ogle, Stephenson, Whiteside, Winnebago



Charities we Support

  • United Way logo.

    “United Way improves lives by mobilizing the caring power of communities around the world to advance the common good.”

    More information about United Way

  • UW Health American Family Children's Hospital logo.

    American Family Children’s Hospital is a comprehensive pediatric medical and surgical center featuring nationally recognized pediatric specialists in a wide range of fields, including faculty from the University of Wisconsin School of Medicine and Public Health and UW Health. Named for a generous gift from American Family Insurance and located in Madison, Wisconsin, the state-of-the-art facility wins widespread praise for its expert care and a warm, soothing atmosphere that enhances a child’s ability to heal.

    More information about American Family Children’s Hospital