rodent entry point inspection
https://online-wiki.win/index.php/What_to_Look_for_in_an_Exterminator_for_Rats
I carefully walk the perimeter of the house, looking for any gaps or holes where a mouse could squeeze in. Even a dime-sized crack around a pipe or under the garage door is enough. I pay special attention to the foundation, utility entry points, and the roofline; those are common spots for rodents to gnaw or sneak through.