Wipe all traces of water from the sink after you've done the dishes and wipe down the bath area after use, as well. Cockroaches naturally gravitate toward areas which are littered with cockroach droppings. Use a detergent or disinfectant to thoroughly clean the area and deter a re-infestation. On concrete floors and walls, you can use a mixture of bleach and water to disinfect the area. Other services can be cleaned with everyday cleansers or antibacterial soaps and scrubs.
Many insecticides are available on the market today which address cockroach infestation concerns.
New gel-based cockroach specific insecticides work fast and are relatively effective in cockroach removal. Baits and gel insecticides work in as little as 1-2 days and often, have little or no offensive odor and are safer to use in areas where children and pets are present. Glue traps, which cause the roach to become stuck in his tracks, also work well in areas that are hard to reach. For heavier or repeat infestations, try sprays, crack and crevice aerosols and foggers, or dusting powder. Fix plumbing leaks and establish a moisture control program in the house.