Mice and rats can be a tricky animal to get rid of especially in a home.
Rats crawl under garage doors.
They are thin metal and can be bent around the vinyl.
If your garage door has a rubber seal check it regularly.
A rat infestation can cause severe problems to your home s electrical and structural stability creating fire hazards.
Rats will also eat and contaminate your food.
These are essentially a metal mesh that reinforces the barrier between your garage and rats.
Install one that is made of metal instead of vinyl.
No place in your home especially a crawlspace is safe from them.
You ll have to fight it.
Stop rats from getting in garage doors.
Their droppings can also cause serious health problems in humans and other animals.
In the infestation is already present there s nothing you can do about the previously mentioned points.
Yes you can use a towel under a door to stop mice but you will need to squeeze it underneath and double up with the towels.
Rats can easily chew through that.
At least for your door you can start with using a door sweep stop.
These come in various shapes and are sold are your nearest home depot in the hardware department.
Start with one and try to get as much of the towel under the door as you can.
How to get rid of rats in the garage.
I picked up a set of these garage door rodent guard strips off of amazon and used them to reinforce the vinyl weather stripping on each side of my garage doors.