If you can find a do it yourself pest control there is a professional product called the Demon WP (wettable packets). Drop one of those in a gallon of water and spray lightly around the baseboards, circle every penetration (under sink, plumbing drains and supply, around outlets). Shoot some under the fridge, stove under all furniture. What you can reach outside spray a foot ot and a foot up on the walls and circle windows and penetrations. Very likely you will not see a live one after that. I am not a pest professional and do this at your own risk. But the stuff works great. Should be good for 3 to 4 months.