Do roaches stay in a clean house?

Yes, roaches can stay in a clean house because cockroaches do not only invade dirty homes and can survive in spotless, well-maintained houses if moisture, warmth, and shelter are available, though poor sanitation makes infestations more likely and severe. German cockroaches, which are small light brown about half an inch with two dark stripes common in kitchens, and American cockroaches, large reddish brown about one and a half inches often called palmetto bugs, can enter clean homes through cracks as small as 1/16 inch around windows, doors, pipes, and foundations, through drains and sewer lines, and by hitchhiking in grocery bags, cardboard boxes, used appliances, and luggage, regardless of cleanliness. They are attracted to moisture from leaky pipes, condensation, pet water bowls, and warmth from appliances like refrigerators and dishwashers, so even clean homes with moisture problems can support roaches. Additionally, roaches can migrate from neighboring apartments through wall voids, so apartment dwellers may have roaches from neighbors despite keeping clean. While cleanliness alone does not prevent roaches, it reduces food sources that support large populations, so clean homes may have fewer roaches and smaller infestations that are easier to control, but roaches can still stay if they find water and hiding spots. Pest control professionals report roaches in luxury homes, hotels, and hospitals cleaned daily. So roaches can stay in clean houses, and prevention requires sanitation, sealing cracks with caulk, fixing leaks, and using gel baits containing fipronil.