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.
How to keep flying squirrels out of your attic.
Usually they don t leave on their own.
Once you ve managed to oust the squirrels from your attic you need to get to work shoring the place up.
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.
You can also set up bright lights in your attic since squirrels prefer to nest in places that are dark.
Or you can just wait until you re sure all the squirrels have left which they usually do during the day.
Check for gaps or holes in your gutters roof downspouts and your walls.
To help prevent flying squirrels from entering your attic consider taking preventive measures.
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.
The best way to get rid of flying squirrels hiding in your attic is to make those little critters actually want to leave.
Flying squirrels are protected game animals in many areas but you can prevent them from entering your home by performing structural exclusion methods.
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.
These measures may include thoroughly inspecting your home for potential entry points.
This often means using lures baits or just making their environment disturbing or uninhabitable.
By that i mean sealing up any of the openings that they are using to get inside and reinforcing places that could become future openings.
Use metal flashing or metal mesh to cover any possible entry routes while a potential animal is out foraging.
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.
To get rid of squirrels in the attic try soaking a rag in ammonia and placing it in your attic which may force the squirrels to leave because of the strong smell.
The most important thing that you can do to keep any type of squirrels out of your attic is to squirrel proof your home.
That can be quite a job though.
If you have a chimney invest in a squirrel proof chimney cap.
Prevent flying squirrels from invading your home.
With any squirrel problem you should first do the things that help your situation.