There are many ways for a mouse to gain entrance into a home.
How do mice get into a 2 story attic home.
Use weatherproofing strips around loose fitting doors to keep the mice out.
When mice climb up downspouts jump down from tree branches or access your roofline in some other way the first location they will find in your home is the attic.
Mice are in your home because they want a warm comfortable protective environment to set up a nest.
So the first reason they like your attic is convenience.
Mice are fearful so if they can hide their whereabouts they will do so especially when they hear you coming.
2 look for the source look around your house and attic for signs of entry.
These items include paper card plastic and pretty much anything that a mouse can chew.
They are also known to find their way inside via entry holes around plumbing and oven gas lines.
It just happens to be the first place they found.
Mice climb the limbs to get to the roof or eaves.
Even very tiny holes can be entered by a mouse.
If you use plastic wood or other chewable materials the mice will get into the attic again.
Trim trees and bushes near your house.
Inspect your attic and crawl space.
Mice may also enter the home through gaps in windows or ceilings as well as through sewer lines.
Mice like to build nests in such places because they aren t typically entered by people or pets in your home.
Check all around the walls and floor to make sure there are no holes.
If drainage pipes are not properly sealed mice may enter homes through sink or bathtub drains.
Be sure windows doors and screens fit tightly.