Bats in Your Attic? Here’s Why Bat Removal in Indiana Has to Wait Until Fall

Every summer, we get the same call: “There are bats in my attic. Can you get them out this week?” And every summer, we have to pump the brakes. Not because we’re busy, not because it’s complicated. Because right now, inside your attic, there are baby bats that can’t fly, can’t survive on their own, and are protected by law. Here’s what every homeowner in Lebanon, Zionsville, Whitestown, and Central Indiana should know about bat maternity season and why it changes everything about how and when bats can be removed.

Are Bats Protected in Indiana?  

Yes, bats are protected in Indiana! Under state law, through the Indiana Department of Natural Resources (DNR), several species (including the Indiana Bat) are federally endangered under the U.S. Endangered Species Act. This isn’t a technicality. It means that disturbing, harming, or excluding bats during certain times of year is illegal, full stop, for homeowners and wildlife professionals alike.

This protection exists for good reason. Bats are one of nature’s best pest controllers, and a single bat can eat thousands of insects in a single night. That doesn’t make them welcome houseguests, but it does mean bat removal in Indiana has to follow the rules.

When Is Bat Maternity Season in Indiana?

Every spring, female bats form what’s called a maternity colony, a group of females that roost together to give birth and raise their pups. According to the Indiana DNR, the restricted period runs from June 1 through August 15. During this window, removal is not advised because the pups depend on their mothers for 25 to 37 days and are not yet able to fly or survive on their own.

The good news? Starting August 16, exclusion work is legal again, but here is something most people do not realize: the window is shorter than it sounds. Once nighttime temperatures consistently drop 40 degrees below, typically between November and April, bats stop flying out to hunt. If exclusion devices were installed during that stretch, the bats would never leave, and they would get trapped inside your home. That is the opposite of what we are trying to accomplish.

What that means practically is that the sweet spot for bat exclusion in Indiana is roughly mid-August through October. It is a narrow window, which is exactly why calling early matters. Homeowners who have their investigation done and their plan built before August 16 are the ones who get scheduled first. The ones who wait until October are often looking at a longer timeline than they expected.

Can You Remove Bats From Your Home During Maternity Season?

This is the question we hear most, and the short answer is no. If an exclusion is performed between June 1 and August 15, flightless pups get trapped inside when the adult females leave. There is no way out for them.

Without their mothers, the pups have no way to survive or exist on their own. Beyond the wildlife concern, this creates real problems for your home, including odor, increased insect activity, and potential damage to insulation and drywall that ends up being far more disruptive than waiting a few months. The seasonal restriction isn’t just about protecting wildlife. It genuinely protects your home too.

We know that’s not what you want to hear when you’re dealing with something in your home. But you are not alone, and this situation is more common than most people realize. The important thing to know is that a plan can be put in place right now, and inspections are still available to you during this time.

What Can You Do to Keep Bats From Coming Back?

While you’re waiting on the season to pass, there are steps you can take to reduce the likelihood of future bat colonies taking up residence.

• Inspect your roofline, soffits, and chimney for gaps larger than a quarter inch.
• Make sure attic vents have intact screens with no tears or gaps.
• Switch exterior lights to warm white LEDs or amber bulbs, since standard white lights attract the insects that bats feed on.
• Trim trees and branches that hang close to your roofline, which bats use as a highway to access your home.

None of these steps replaces a professional exclusion, but they go a long way toward making your home a less appealing roosting spot going forward. And when it comes to getting the real work done, timing is everything. There are actually two exclusion windows each year: a spring window that runs roughly April through May, and a fall window that opens August 16 and runs through early November before dropping temperatures shut it down. That sounds like plenty of time, but both windows fill up faster than most homeowners expect. Getting your inspection done early is what gets you scheduled before the rush. 

What If You Actually Like Having Bats Around?

Not every homeowner wants bats completely gone. Bats do incredible work for your yard and garden, and some people are happy to coexist as long as the bats aren’t inside the house. If that sounds like you, a bat house is a great solution.

Bat houses give local colonies a dedicated outdoor roosting spot so they stay close enough to keep eating your mosquitoes and insects without ever needing to find a way into your attic. The key is placement. Bat houses should be mounted at least 12 to 15 feet off the ground, ideally on a pole or the side of a building rather than a tree, and positioned where they get 6 to 8 hours of direct sunlight daily. South or southeast-facing tends to work best in Indiana.

The best time to put one up is actually right after a professional exclusion is completed. Once the bats are out of your home and the entry points are sealed, a bat house in your yard gives them a natural next step rather than sending them searching somewhere else. The Indiana DNR even offers free bat houses through their Bat Monitoring Project for homeowners willing to survey and track the bats that move in. It’s a win for you and for them.

What Should You Do Right Now If You Have Bats?

You are not alone in this, and you don’t have to sit and wait. There is real, meaningful work that can happen between now and August 16, and starting that process early puts you in a much better position when exclusion season opens.

Get an inspection scheduled. A trained wildlife specialist can identify every entry point bats are using, assess the size of the colony, and document any existing damage. Bats can squeeze through a gap as small as a dime, so a thorough inspection often turns up entry points homeowners never noticed. Having all of that mapped out ahead of time means the exclusion can happen quickly and completely once the season lifts.

Don’t seal anything yourself. This is one of the most common mistakes homeowners make. Blocking an entry point while bats are still inside, especially between June 1 and August 15, traps the pups with no way out. 

If a bat gets inside your living space, treat it as a separate issue. A bat flying around inside your home is different from a colony roosting in your attic and can be handled any time of year. Don’t touch it with your bare hands. Contain it if possible using a container and a piece of cardboard, and contact a wildlife professional. They can coordinate with local health departments for rabies testing if there was potential exposure.

How The LadyBug Pest & Wildlife Control Handles Bat Removal

At The LadyBug Pest & Wildlife Control, we serve homeowners across Central Indiana, including Lebanon, Zionsville, Whitestown, and Greenwood, and we deal with bat colonies every season. We know the local regulations, we follow Indiana DNR guidelines, and we stay up to date on exactly when and how exclusion work can legally and safely happen.

While we can’t perform full exclusions between June 1 and August 15, we can come out now. We complete thorough inspections, walk you through exactly what’s going on, identify every entry point, and build a complete removal plan so that on August 16, we are ready to move. No delays, no scrambling, no starting from scratch.

Once exclusion season opens, our bat control services include installing one-way exclusion devices at active entry points, allowing the colony time to fully vacate, permanently sealing all entry points once they’re gone, and cleaning and treating any guano contamination left behind. That last step matters more than most people realize. Bat guano can harbor a fungus that causes histoplasmosis, a respiratory illness that can affect people when disturbed droppings become airborne. It’s not something to ignore, and it’s one of the reasons proper cleanup is always part of the process. When done right, it’s a permanent fix.

Not sure if what you’re hearing is actually bats? Read our guide to identifying scratching sounds in the attic to help narrow it down before scheduling anything.

The Bottom Line on Bat Maternity Season in Indiana

Bat maternity season in Indiana runs from June 1 through August 15, and that window is legally enforced for good reason. But being told to wait doesn’t mean being left on your own. The right move is to get informed, get an inspection on the calendar, and let a professional build the plan so you’re ready to go the moment the season lifts.

Ready to get ahead of it? Contact The LadyBug Pest & Wildlife Control today to schedule your inspection and lock in your spot for fall exclusion.

The LadyBug Pest & Wildlife Control serves Lebanon, Zionsville, Whitestown, Greenwood, and the surrounding Central Indiana area with humane, effective wildlife removal. Our bat exclusion services are fully compliant with Indiana DNR guidelines and federal wildlife protection laws.