Bats can enter through a hole as small as ½ inch. That’s about the size of a dime. These flying mammals are surprisingly good at sneaking into homes, especially when they're searching for a warm place to roost.
Homeowners often don’t realize a colony is living just above their heads. But once inside, bats can cause serious mess and noise. That’s where bat exclusion services in Ann Arbor often come into the picture.
Small Gaps Become Big Problems
Most people assume their home is sealed tightly. But even newer homes can have tiny gaps that go unnoticed. Bats take advantage of these small openings—especially near the roofline.
Common bat entry points include:
- Gaps between siding and trim
- Openings around vents or chimneys
- Missing or damaged screens on attic vents
- Loose flashing or roofing tiles
- Spaces under eaves and fascia boards
Bats use echolocation to find these weak spots, often following warm air escaping the attic.
They Return Night After Night
Once bats find a safe roost, they’ll keep coming back. They leave behind scent trails and guano, which help guide them back to the same spot.
That’s why a quick patch job rarely works. You need a process that removes the bats humanely and keeps them out for good. Companies that offer bat relocation services in Novi usually start with a detailed inspection to locate entry and exit routes.
Then, they install one-way exclusion devices. These allow bats to exit but block them from returning. Once the bats are gone, professionals seal up all access points to prevent new arrivals.
Why Attics Are So Appealing
Attics offer bats everything they want: shelter, warmth, and quiet. Most attics are undisturbed and dark—perfect conditions for roosting.
Here’s why bats love attics:
- Attics stay warm, especially in summer
- No human activity means less disturbance
- Entry points are often high up and hidden
- They can come and go through vents or gaps without being noticed
Once a bat colony settles in, they tend to stick around. That’s why quick action is important.
Listen for These Signs
You might not see bats, but you can often hear them. Scratching, fluttering, or high-pitched squeaks in the ceiling are common clues.
Also, check for:
- Guano (bat droppings) near attic vents or rooflines
- Strong ammonia-like smells from buildup
- Dark stains near entry holes (from body oils)
- Sudden increases in insect activity (bats eat bugs, so fewer bats means more bugs)
Noticing one or more of these signs usually means the colony has been there for a while.
Next Steps: What You Can Do
If you suspect bats in your attic, don’t try to trap or block them on your own. This can leave young bats stuck inside, creating more problems. Instead, work with professionals who understand the laws and humane removal methods.
Experts offering bat exclusion services in Ann Arbor follow legal guidelines that protect both homeowners and local bat species. They also help prevent future re-entry by sealing all access points thoroughly.
Final Word: Prevention Matters
It’s easier to keep bats out than to get them out. Regular home inspections, especially in spring and fall, can help you spot and seal new gaps early.
You don’t need to wait until bats move in. Professionals experienced in bat relocation services in Novi often recommend preventive exclusion even before a colony forms. It’s one of the best ways to avoid mess, noise, and possible damage.
If your attic has signs of bats—or you simply want peace of mind—a full inspection and proper exclusion plan is the smart move.
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