German cockroaches favor warm, humid spaces near food and water — kitchens, behind appliances, under sinks — and Schertz's a climate shaped by limestone Hill Country terrain around Austin and San Antonio, and near-subtropical conditions farther south keeps them active most of the year. American cockroaches, larger and reddish-brown, prefer basements, drains, and utility rooms. Slab construction dominates here, from established Hill Country neighborhoods to newer subdivisions and South Texas ranch-country homes.
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.