Bats may live in some buildings, but if they are not causing any harm, there is no need to bother with them. However, bats should always be prevented from coming into your home. Assistance with "bat-proofing" your home can be acquired by contacting your local animal-control or wildlife conservation agency. If you want to do the "bat-proofing" personally, then here are some suggestions when doing so:
Fill electrical and plumbing holes with steel wool or caulking
Ensure that all doors to the outside are closed tightly
Examine your home for holes. Any openings larger than a 1/4 to 1/2 and inch should be caulked
Use window screens, chimney caps, and draft guards beneath doors to attics
Ensuring that all openings are secured is perhaps the best way to keep bats from entering your home. Bats are very fast and they are very agile, so any sort of opening can be maneuvered by them to come into your home. It is best to "bat-proof" your home during the fall or winter because this is when bats generally begin to hibernate.
The following are useful tips for preventing the spread of rabies:
Always keep your pet up to date with rabies vaccinations. Any small animals should not be kept outside and dogs and cats should be watched or leashed in a safe environment
Always wash any wound from an animal thoroughly with soap and water and seek medical attention immediately
Prevent bats from living in areas you don't want them in, like homes, schools, offices, etc.
Teach children to never handle unfamiliar animals, wild or domestic, even if they appear friendly