How to Keep Bats Out of Your Home

By Daine Patton

Most people don’t think about bats until they already have a problem. And by the time you’re hearing scratching in the walls or noticing activity in the attic, they’ve usually been there longer than you think. That’s just the reality of it. Bats don’t need a big hole to get inside, and they’re really good at finding the small stuff most people would never notice. That’s why prevention matters. Because if you can catch it early, or better yet stop it before it ever starts, you save yourself a lot of stress, time, and money.

Bats are not trying to cause problems. They’re just looking for a safe place to live. Your home gives them exactly what they want. Warmth, protection, and a lot of small gaps around the roofline that make it easy to get inside. Here’s something most homeowners don’t realize. A bat can get through a gap about the size of a dime. That’s it. So when someone says their house looks tight, that doesn’t really mean much unless you’ve actually gone through it the right way. We also see bat intrusion pick up during certain times of the year. Maternity season is a big one. Bats are looking for a safe place to raise their young, and once they find it, they tend to come back to that same spot year after year.

Problem Areas

Here’s what we see all the time. Most of your problem areas are going to be up around the roofline. Soffits, fascia, and anywhere materials meet or change. Those transition points are where gaps happen, and those gaps are what bats take advantage of. Ridge vents are another big one. From the ground, they can look completely fine. You get up there and find they’re wavy, separated, or just worn out enough to let bats in. The same thing applies with roof vents and gable vents. They might look good from a distance, but when you get close, you start finding gaps around the edges or areas that were never sealed properly in the first place.

One area that gets missed all the time is underneath the drip edge along the gutters. We find gaps behind there on a regular basis. You don’t see it unless you’re on a ladder and actually looking for it, and sometimes you even need a mirror to check it right. We see this every week. A house looks completely fine from the ground, but when you get up there and take a closer look, there are multiple entry points that have probably been there since the house was built.

Prevention for Homeowners

You don’t need to be climbing all over your roof, but there are some things you can keep an eye on as a homeowner. Start simple and walk around your house. Pay attention to your roofline, soffits, and vents. If you see something that doesn’t sit tight or looks like a gap, don’t ignore it. Look for staining too. Bats will leave rub marks where they’re going in and out, and it’s usually a darker discoloration around an opening. Another sign is droppings. If you start seeing small piles below a section of your roofline or near siding, that’s a sign something is using that area.

Inside the house, listen. Especially around dusk or early morning. If you’re hearing movement in the attic or walls during those times, that’s a clue. It’s also a good idea to keep your trees trimmed back away from the house. It doesn’t solve everything, but it helps reduce access. These things won’t replace a full inspection, but they can help you catch something before it turns into a bigger issue.

Importance of Inspection

This is where people get it wrong. A lot of homeowners try to fix this themselves, and I understand why. But using spray foam, basic sealants, or trying to patch one hole might feel like you’re solving the problem, but most of the time you’re not. Those materials don’t hold up, and more importantly, you’re usually not addressing the full issue. And if bats are already inside and you just seal the hole, now you’ve trapped them in the house. That turns a manageable situation into a much bigger one.

Timing matters too. During maternity season, you can’t just seal everything up because the young bats can’t leave yet. That’s where you have to know what you’re doing and understand how to handle it properly.

If you want to do this the right way, it starts with a full inspection—not part of the house; the whole thing. Every side, every transition point, every potential entry area. From there, you identify all the entry points, not just the obvious one, because it’s almost never just one. If bats are active, you install one-way devices so they can get out safely. Then, once everything is clear, you go back and seal everything properly.

And when I say properly, I mean using the right materials, not shortcuts. That’s where things like custom metal work, proper vent covers, and high-grade sealants come into play. Materials that are built to last and actually hold up over time. Because if you don’t do it right the first time, you’re going to be doing it again.

We have these conversations with homeowners every single day. A lot of this comes down to awareness, paying attention to your home, catching things early, and not ignoring small gaps. But if bats do become an active issue, this is one of those situations where it makes sense to bring in a professional who does this every day and stands behind their work.

At the end of the day, what people really want is peace of mind. They want to know it’s handled and not something they’re going to deal with again. And that comes from doing it right.

--

about the author

Daine Patton, Founder & CEO of Bats to Rats, built his Nebraska-based company into a trusted leader in ethical wildlife control. A National Wildlife Expo speaker and BBB Torch Award winner, he is known for permanent exclusion solutions, family-first leadership, and advocating for higher standards across the pest and wildlife industry.