Mice or Rodents in Walls
Steps
- Walk the outside of the house at dusk with a flashlight looking for openings the width of a pencil — around pipes, cables, vents, and where siding meets the foundation. Mice need only 6 mm.
+4 more steps in the full guide
Stop and call a pro if
- you hear activity in more than one part of the house, or catch more than a few mice a week — an established population