One of my biweekly commercial accounts, a restaurant in Keyport, was having ongoing issues with mice, despite our best efforts in locating and sealing possible entry points. According to the day manager, mice were running back and forth between a two-door area (see photo). So, I began my inspection by carefully looking for entry points in this area. Each door frame had a slight opening behind the baseboards. Mice had created their own point of access by chewing themselves a pathway to get around the bar area of the restaurant (see photo).
I patched each hole with copper mesh. Now, with the mesh blocking them, the mice had lost their route to get back into these areas. I then placed several “tin cat” glue boards around the utility closet adjacent to the entry point. The utility closet was the perfect harborage area for mice — it was small, dark, and easily accessible.
During my next follow-up, I made significant progress with the infestation. My “tin cats” had snared several mice now that these entry points were plugged. I’m confident that as long as I stay on top of closing possible entry points into the restaurant, their rodent problem will be eliminated.
The most important line of defense for mice is keeping them out of the structure in the first place, and the only way to do that is by being vigilant about inspecting the building’s exterior perimeter, finding entry points and sealing them. Also, inspecting for mice is an ongoing process. Just like what happened here, new entry points can pop up between visits. Mice are persistent, focused creatures. If they are determined to find their way inside a structure, they will keep plugging away, either by finding a new entry point or by making their own. Mice are able to gnaw and chew their way through wood and other building materials.