Mice can enter your home any time of year, but spring can be extra tricky. Mice that moved in during winter are still there, and warming weather increases outdoor mouse activity and gives them new chances to enter.
How are mice getting into my house if there are no holes?
The holes are smaller, higher, or more hidden than you'd expect. Mice can squeeze through any gap about the diameter of a dime, and most homes have dozens of openings that qualify.
What are the first indications of a mouse infestation?
The earliest signs are usually small, dark droppings along walls or in cabinets, scratching or scurrying sounds in walls or ceilings at night, and gnaw marks on food packaging or household materials.
Check along baseboards, behind appliances, in dusty or undisturbed areas like basements and attics, near food storage, and around utility entry points. Mice follow the same paths repeatedly and leave visible evidence.