German cockroaches favor warm, humid spaces near food and water — kitchens, behind appliances, under sinks — and Granger's a four-season climate typical of the Midwest, with real winter cold and consistent summer humidity keeps them active most of the year. American cockroaches, larger and reddish-brown, prefer basements, drains, and utility rooms. A mix of historic farmhouses and mid-century homes in manufacturing and logistics hubs, most with basements to handle harsh winters.
We start with an inspection to identify the species and the source — sanitation issue, moisture problem, or entry point. Treatment centers on gel bait placed in cracks, voids, and under appliances, not broadcast spraying, since German cockroaches in particular have developed resistance to many surface sprays. A follow-up visit confirms the bait is working and the population is dropping.