Attic pests—like mice, rats, squirrels, and bats—are every homeowner’s nightmare. They bring unsanitary conditions (even disease) and can damage the house’s structure and insulation, requiring expensive repairs. Keep these unwanted house guests out with some preventative measures, courtesy of Preferred Pest Control.   Inspect the Attic Household pests often enter the attic directly from outside, usually taking advantage of tiny cracks or holes in the walls and roof. Rodents can squeeze through surprisingly small openings (about the diameter of a quarter), and they won’t hesitate to make a small hole bigger if need be. To prevent infestations before they become an issue, inspect your attic at least a couple of ...