With any squirrel problem you should first do the things that help your situation.
How to keep flying squirrels out of your attic.
This often means using lures baits or just making their environment disturbing or uninhabitable.
Then you need to make the attic unattractive to them.
First remove any bird feeders secure the garbage cans and cut the tree limbs back around the house so squirrels do not have easy access to the roof.
Usually they don t leave on their own.
To help prevent flying squirrels from entering your attic consider taking preventive measures.
Flying squirrels are protected game animals in many areas but you can prevent them from entering your home by performing structural exclusion methods.
If you have a chimney invest in a squirrel proof chimney cap.
You can also set up bright lights in your attic since squirrels prefer to nest in places that are dark.
Lure them out of your attic.
Fix any broken windows or cover them with cardboard to help prevent entry.
Prevent flying squirrels from invading your home.
Once you ve managed to oust the squirrels from your attic you need to get to work shoring the place up.
You can also try putting a bright light in the attic and leaving it on playing a radio around the clock or putting rags soaked with cider vinegar in the attic squirrels don t like the smell.
Yes the repellers should keep squirrels and other pests from creating more nests up there but you shouldn t leave the place open to pests and the elements.
Use metal flashing or metal mesh to cover any possible entry routes while a potential animal is out foraging.
Check for gaps or holes in your gutters roof downspouts and your walls.
That can be quite a job though.
The best way to get rid of flying squirrels hiding in your attic is to make those little critters actually want to leave.
For this job it is often best to invite a professional to examine the attic and to repair any holes or weak points in the roof space where more flying squirrels could enter.
The most important thing that you can do to keep any type of squirrels out of your attic is to squirrel proof your home.
These measures may include thoroughly inspecting your home for potential entry points.
It is also wise to have a professional decontaminate the attic to prevent any health issues being caused by the feces and urine of the flying squirrels.