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Brown Bats

Service only available for Home Protection Plan customers. Learn More »

Class: mammal
8″ – 13″ wingspan
2, with 2 attached to wings
Natural predators:
cats, snakes, raccoon
droppings weigh down and damage structures, may carry rabbis
Interesting Fact: 
one brown bat is capable of consuming over 3,000 mosquitoes in one night

Brody Brothers Provide Humane Bat Exclusion Services

Bats typically live in tropical areas, but there are about 40 species that inhabit the U.S. and Canada. Little Brown Bats and Big Brown Bats are probably the ones you are mostly familiar with in Maryland.

In winter, bats hibernate in crevices, caves, barns and other sheltered areas. Big Brown Bats are the only species around Baltimore that are likely to spend winter in your attic.

In summer, you can see bats flying around after dusk, hunting for insects. Females often form nursery colonies in man-made structures to rear young, while males tend to roost in more solitary areas, such as trees.

Bats Are Good to Have Around, But Not Inside Your Home

Although most humans consider bats to be scary, they can be beneficial. Aside from eating nuisance insects, such as mosquitos, moths and beetles, bats also pollinate certain plants.

However, it’s important to remember that bat droppings and urine can corrode wood and metal. When a large population of bats is roosting in your attic, they may produce enough droppings to potentially damage the ceiling below. Their waste also emits a foul odor and can grow fungal spores that may lead to the lung disease Histoplasmosis.

Bats are also the leading cause of rabies in the U.S. While rabies in humans is rare, it does happen and bats are typically involved.

5 Tips to Keep Your Family Safe from Bats:

  • Make sure your windows have screens if you leave them open at night.
  • Don’t handle a bat yourself, especially if it appears injured or easy to capture.
  • Educate children to avoid contact with bats and report any bites.
  • If you got bitten by a bat, disinfect the wound and seek medical attention as soon as possible.
  • It is also recommended that you seek medical attention if you find a bat in your room upon waking up or find an unattended child in a room with a bat. Many times people, especially children, don’t realize they’ve been bitten.

If a bat flies into your living quarters, do not try to trap it or kill it. Close it off in a room with an open window; call wildlife control if the bat doesn’t exit or seems hurt. A few endangered bat species such as Indiana Bats also live in Baltimore and require special attention.

Brody Brothers Eliminates Bats through Bat Exclusion

As we mentioned earlier, bats do play an important role in an ecosystem – they control the population of insects in your area. Bat extermination is both unnecessary and harmful to the environment, which is why most pest control companies in Baltimore are focused on bat exclusion these days.

Bat exclusion involves bat-proofing your home in a way that allows bats to leave, but doesn’t allow them to return. This is how Brody Brothers approach bat exclusion:

  • We will examine your home and determine where the bats are roosting and how they get in.
  • Bats only need 3/8” to enter a structure. We will identify these gaps and holes around your roof and attic, seal off some and install bat exclusion devices on the others.
  • After the sun goes down, bats will exit your home to hunt. Unable to re-enter through the same hole, they will search for another way to get in for some time before giving up and relocating.

To avoid trapping live bats inside your home, the best time for bat exclusion is either after the hibernation ends and before the bat pups are born (March – April) or after the pups can fly but before the hibernation begins (August – October).

If you don’t have any hibernating bats in your attic, fall and winter are the best times to seal up any entrance holes and perform necessary structural repairs.

How to Keep Bats Outside

To discourage these pests from nesting in your attic, keep your home in a good shape by installing screening on attic vents, repairing any damaged wood and siding, as well as cracks around the chimney.  You can also install bat houses or “bat boxes” on your property.

Little Brown Bats and Big Brown Bats are among the species that are likely to inhabit these structures. Bat boxes installed prior to exclusion will help bats relocate easier and prevent them from invading your neighbor’s home.

Do you suspect that bats might be nesting in your attic? Call us to help you properly evict them.


Are other wildlife critters visiting your home or business? Check out our Wildlife Pest Control page to see other animals we can safely remove from your property.

What Our Clients Are Saying
Over 300 verified Contact Us Online Reviews

“I have been with Brody Brothers for 5.5 years. Ari has been coming to my home for all this time. He does a great job. I hardly ever have an issue. He keeps us pest free which isn't easy living in the woods.”

Jessica Lubek
Owings Mills, MD

“Over 10 year. Service is always top notch. They are always on time and take care of any problems.”

Larry Goldberg
Reisterstown, MD

“We have been using Brody Pest control for about 40 years! We were always very satisfied by their service, always on time and very pleasant and knowledgeable.”

Morris & Greta Lasson
Baltimore, MD

“We have been using Brody Brothers for around 5 years and we love that they are personal and they will keep coming back until a problem is resolved.”

Michal Kovacs
Pikesville, MD