Mice are adept at finding their way into places where they aren’t wanted. Even the smallest gaps in your home’s exterior can provide them with access to your property, and while they are more likely to enter your home near to the ground, where they spend most of their time, they are also good climbers and might go directly to your attic or upper floors. There are several ways that mice can enter attics directly. These include; outdoor water taps, openings for water pipes, utilities and dryer vents, and gaps around windows.
If you want to keep mice out of your attic, you should try and seal any gaps or openings you find so they can’t use them to get in. Mice are also much better at climbing than many people realise; cut back any trees or plants they could use to get to your roof or attic.
Mice like attics because they are warm, dark, and secluded. As well as keeping them safe and sheltered, attics often provide mice with plenty of fibreglass insulation, which they use as a construction material when building their nests.
If you have mice in your attic, you will usually hear them scurrying, scratching, and chewing their way through whatever they can find. However, just because you don’t hear them, don’t assume they aren’t there. If you notice other common signs of a mouse infestation, the attic should be one of the first places you check for a nest.
Mice won’t usually come out during the day. Instead, they will wait until it’s quiet and dark and everyone has gone to bed before emerging from their nests. You can have a significant infestation of mice nesting in your attic without ever actually seeing them.