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Do ultrasonic bat repellents really work?

4 min read

Asked by: James Lam

Unfortunately there is no such thing as a “bat repellent”. There are many gimmick devices out there claiming to be repellents, but they flat out do not work. High frequency devices that plug into your wall will not work either.

Does ultrasonic bat repellent work?

Ultrasonic devices are not effective in repelling bats.



However, these chemicals could seep into humans living quarters posing a significant health hazard to people. Use of these chemicals also greatly increased the risk of humans and pets coming into contact with sick or dying bats.

What is the best bat deterrent?

Bats don’t like the smell of mothballs, white phenol, cinnamon, or eucalyptus. Install bright lights to help deter them. Bats also don’t like objects that reflect light, so you can hang strips of aluminum foil, mirrors, mylar balloons, or even old CDs.

Is there a device to keep bats away?

Ultrasonic Bat Repellers We Reviewed:



Neatmaster Ultrasonic Pest Repeller Electronic Plug in Indoor Pest Repellent. TBI Pro Ultrasonic Pest Repeller Wall Plug-In. DURANOM Ultrasonic Animal Repeller Outdoor. PREDATORGUARD Solar Powered Predator Deterrent.

Do ultrasonic bat repellers work through walls?

An ultrasonic bat repellent can emit sound waves that can pass through walls and ceilings. This is why you need to get a long-range device, like the one we recommended. Ultrasonic bat repellents use both ultrasonic and electromagnetic waves.

What noises do bats hate?

The more popular sound deterrents for bats are those that use ultrasonic sounds. These sounds are in the same frequency as bat ultrasounds, so it cannot be detected by human ears.

How do I bat proof my house?

You can use window screening or hardware cloth to cover louvered vents or larger openings and expanding foam insulation or caulking compound to seal the smaller ones. Bats will not gnaw new holes, so sealing the existing openings will be enough to keep them out.

How do you get rid of bats in your soffit?


And we put a couple bat valve up this is a really good example of how they work you see a hole where they were getting into. We put the bat belt there comes out one way. But they can't get back in.

Does spray foam keep out bats?

And you know spray foam will keep a bat out but it won't keep birds and mice and other things.

How do you block a bat hole?

Once the openings have been located, block all, except one, using: ¼ inch hardware cloth (galvanized steel mesh), wood, or sheet metal. Seal edges well, bats need only a half-inch opening to enter.

How do you get bats out of your walls?

The Five Ways of Getting Bats Out of a Wall

  1. 1 – Repellents. Ammonia, mothballs, spicy sauce, chili sauce or powder, black pepper, lemon and other citrus fruits, high-pitched sound devices … …
  2. 2 – Turning on the lights. …
  3. 3 – Attempting net removal. …
  4. 4 – Professional bat removal. …
  5. 5 – Cutting out the wall.


Do bats come back to the same place?

Do bats come back to the same place? Some bats leave for the winter, but most hibernate in their nest. In April, these same bats return to their nesting places. If the bats have a nest in your home, they will return to the same spot, year after year.

Does one bat in the house mean more?

If you find one bat in your house, there is a good chance that you have more. Bats tend to be very quiet, so you might not be aware that they are nesting in your house until they have been there for a while.

How long can a bat live in your house?

If there is no food or water, a bat trapped in a house will die within 24 hours. Even after it is dead, you should not touch or go near the bat. Some animals seem scarier than they are, but bats are every bit as dangerous as they seem.

Should I be worried about a bat in my house?

If it does not leave on its own, try using a box, a container or net to capture it. But if you do, don’t be surprised if it makes a chittering noise — a sign of its displeasure. “Bats are like people: They panic and can’t calm down,” Ms. Stronsick said.