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How can I keep bats out of my house?

Some bats live in buildings and may continue to do so with little risk to inhabitants if they are unable to access living areas and the potential for contact with people is low.

However, bats should always be prevented from entering rooms of your home. "Bat proofing" your home or living quarters can prevent bats from using a home for a roosting site. For best results, contact an animal control or wildlife conservation agency and ask for assistance.

If you choose to do the "bat-proofing" yourself, here are some suggestions:

  • Carefully examine your home for holes that might allow bats entry into your living quarters.
  • Any openings larger than a quarter-inch by a half-inch should be caulked.
  • Use window screens, chimney caps and draft-guards beneath doors to attics.
  • Fill electrical and plumbing holes with stainless steel wool or caulking. Ensure that all doors to the outside close tightly.
  • Most bats leave in the fall or winter to hibernate, so these are the best times to "bat-proof" your home. During summer, many young bats are unable to fly. If you exclude adult bats during this time, the young may be trapped inside.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.