I suddenly found myself with mice upstairs and rats in the basement, who also came upstairs. I called Westside and a technician came over and plugged all the entry points in the roof (I live in an old house), installed one-way trap doors, plugged holes in the perimeter of the house, installed bait stations outside and numerous traps inside. Everything was going well, no sign of mice upstairs anymore, until the rats became very active in the basement. Another technician came, and after carefully reviewing the basement, realized the Norway rats were probably coming up the sewer pipe which protrudes from the basement floor. Initially this pipe was covered with a jar, but I had removed the jar after a sewer backup in the basement when I had to clean up the mess, and neglected to put the jar back. Also, there was a crawl space which had a small hole, where the rats where entering. The technician sealed the sewer pipe and crawl space hole with mesh, and the rats were never seen no more! Both technicians, Jagger and James, were very helpful and observant, not to mention polite and friendly! I am extremely pleased with their services!