German cockroaches favor warm, humid spaces near food and water — kitchens, behind appliances, under sinks — and Scaly Mountain's a climate that varies significantly across this region, from Charlotte's hot, humid summers to genuinely cooler mountain conditions near Asheville keeps them active most of the year. American cockroaches, larger and reddish-brown, prefer basements, drains, and utility rooms. A mix of Charlotte-area suburban construction, historic mountain-town homes near Asheville, and coastal Southeastern NC housing, most on crawl-space or slab foundations.
Treatment starts with locating the harborage points — the tight, warm, food-adjacent spaces roaches actually live in — and applying gel bait directly there rather than spraying open floor space. This targets the colony at its source and avoids the resistance issues that plague over-the-counter sprays. We follow up to verify the population has collapsed, not just scattered.