Kitchen: Keep counters, sinks, tables and floors meticulously clean every day. Clean dishes, crumbs and spills right away, store food in airtight containers and always avoid leaving food out—including pet food. Vacuum any crumbs stuck in corners and around cabinets, and regularly clean cabinets out with soap and water. Check under sinks and clean under appliances for moisture issues, and quickly address any found.
Bathroom: Cockroaches are attracted to moisture and can only survive for a week without water, so always wipe up standing water around sinks, tubs and toilets. Fix leaky faucets and ensure sinks are clear of water before bedtime—cockroaches are nocturnal and will typically emerge to search for water and food at night when the house is dark and quiet.
Basement: Eliminate clutter where possible to reduce hiding spaces for cockroaches. Basement windows and areas where weather-stripping has become worn are frequent points of access for cockroaches, so homeowners should be sure to seal any cracks or crevices using caulk, steel wool or a combination of both.