In the fall and winter mice and rats invade homes in record numbers, looking for food and a more comfortable place to spend the cooler months. The question many people ask us is, How do mice and rats get in? The short answer is, Very easily! Mice and rats have an amazing ability to squeeze through small holes. A young mouse can easily squeeze through a hole even smaller than a dime: a young rat can squeeze through a hole smaller than a quarter. Amazing! And if the opening is too small, they will often make it bigger by gnawing around the edges. Openings around service conduits like electricity and phone lines, and water pipes, provide easy access indoors and between apartments. Dryer vents and gaps around window-installed air conditioner units are other common entry points. Rodents can also crawl up through drain pipes not properly capped, as well as under exterior doors that don t seal well. Rats reach roof areas easily by tight-rope walking along utility li
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