German cockroaches favor warm, humid spaces near food and water — kitchens, behind appliances, under sinks — and Fairfield's a mild, dry-summer Mediterranean climate with the region's famous fog shaping local weather patterns keeps them active most of the year. American cockroaches, larger and reddish-brown, prefer basements, drains, and utility rooms. Older established neighborhoods sit alongside significant new high-density development driven by the area's tech-fueled growth.
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.