SIA Represents the Following Carriers

  • Becky Pautz
    They are extremely helpful and genuinely care.
  • BK
    Thank you so much and god bless!
  • Erin Backhaus
    5 stars!
  • Sarah Kastein Pieper
    Four stars!
 See All Reviews
SIA Insurance Services Staff

Wisconsin Independent Insurance Agency

Auto/Car Insurance, Homeowners Insurance, Medicare Supplements, Business/Commercial Insurance, and Life/Health Insurance for Waupun and All of Wisconsin

Founded in 1927 by John D. Westra, SIA has been a family owned agency serving Waupun and the surrounding area for almost 100 years. Today we still have our main office in Waupun and we still have family ownership. We now service accounts throughout the state, as well as their out-of-state operations. We have expanded our business to include agents in Randolph, Jackson, and Greenville, and we are looking forward to continued growth, through the reputation we have established for insurance value and customer satisfaction.

Over the years, we have established long-term relationships with the companies we represent and the customers we are privileged to serve. These are the relationships upon which SIA Insurance Services has been built.

SIA Insurance Services is a full-service independent insurance agency. We will review your needs, analyze your risks, explain the options and offer solutions to your problems.

Joel Sterk

Questions? We Can Help!

Recent News & Updates

Prepare Your Office for the Summer Heat

Working in a hot office all day can affect employee morale and productivity. It makes sense for business owners to prepare in advance for scorching summer days. The following tips can help you beat the heat and create a more comfortable office environment. Make Sure Your HVAC System is in Top Running Order When temperatures are climbing, an efficiently running HVAC system can make all... Read Article

What Is the Right Time to Purchase Life Insurance?

Life insurance is important because it provides financial security for your loved ones should you become incapacitated or pass away. Even if you have no assets to pass on, a life insurance policy can provide an inheritance for them. It can also be used to pay off outstanding debts, such as a mortgage, car loan, or credit card debts, to avoid placing additional burdens on... Read Article