I had signs of mice in my attic, basement, and a few other dark places around my old house. Colonial Pest Control investigated and confirmed my mouse problem. They distributed some traps, and identified where the rodents were likely entering my home. I was able to caulk these openings, and after a few days, there were no more signs of rodents. Finally, I've waited an entire year before posting this review to verify the problem has not returned, and it has not! Job well done, Colonial Pest Control!