Do ultrasonic pest repellers work on squirrels?

Do ultrasonic pest repellers work on squirrels

Ultrasonic pest repeller is effective in chasing and eliminating squirrels because they make use of ultrasound technology.

Squirrels can pose a whole lot of problems to your home. They might look harmless, but these rodents are nothing short of destructive.

Not only would they litter your home and lawn with their feces, but they would also chew on anything they find: wood, wiring, garden plants, you name it.

They could make their home anywhere they feel comfortable: in your attic or your garden.

To make matters worse, they don’t have a problem eating anything that can find. So as far as there is something for them to chew on and eat, they’re pretty good.

Did you know that squirrels could transmit diseases too?


Those cute fuzzy creatures causing havoc in your home carry dangerous diseases like leptospirosis, salmonella, rabies, and the bubonic plague. These diseases are more serious than just the common cold.

For example, salmonella makes you have a running tummy, which could be accompanied by vomiting for days. These diseases, usually spread by squirrel feces, can affect either you or your pets. Squirrels can also cause damage to your car, by eating visible wires. These could be expensive to repair.

So, how can you get rid of squirrels?

Both on the internet and in today’s world, there are a lot of suggested methods to get rid of these rodents. One of such methods is ultrasonic repellers.

Ultrasonic repellers have become more popular over the years due to the unique benefits they offer.

But do they really work?

We’re going to answer that question in this guide.

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How do I know I have a squirrel problem?

Do ultrasonic pest repellers work on squirrels

Before you think of using an ultrasonic repellent or any form of pest control at all, you have to be sure you are dealing with squirrels first. If you don’t, you could just be shadowboxing and it’s very unlikely you’d get results.

It’s easy to know if there are squirrels around you.

First of all, they make a lot of noise when they move about. Squirrels hardly stay in one place and are more active in the day than at night.

The second way you can know you are dealing with a squirrel infestation is footprints.

Now, you might not see footprints on your lawn, but indoors, you can see tiny squirrel prints in places they have passed.


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Does high frequency sound repel squirrels?

Now that you are sure you have a squirrel problem, the next thing you want to do is to take care of it ASAP, right?

Well, ultrasonic repellers can help you with this. But how do they scare squirrels away or keep them off your property?

Ultrasonic repellers emit a kind of sound known as high frequency sound.

This kind of sound, also known as ultrasonic sound, is above the limit of human hearing. We humans cannot hear sound above 20khz.

Most of the ultrasonic drives emit a sound of about 25khz.

Can other animals hear ultrasound waves?

This high frequency sound can be heard by pets, pests, and insects alike.

Squirrels around your home will hear ultrasonic sound waves clearly and keep off your home because it scares them.

So yes, ultrasonic sounds repel squirrels as it is irritating to their hearing.

It can cause confusion, disorientation, or even prevent their communication with one another.

High frequency sounds frighten squirrels and since they get scared easily, they won’t stay where they hear these sounds.

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Do ultrasonic squirrel devices work?

As explained earlier, ultrasonic repellents work by emitting high frequency sound waves.

These squirrel repellents are emitted in non-repetitive pitches so that the rodent pest doesn’t get used to it and decide to stay.

You have to understand that squirrels are resilient when it comes to their nests. If they find a conducive environment and they like it enough to build a nest, it’s going to take some hard work to chase them away from such places.

Instead of the high frequency sound waves coming as continuous stream, they come in a beat and tempo way.

Squirrels get confused as they can’t predict the rhythm of the sound and as such can not get comfortable.

An ultrasonic pest repeller get the job done since they hear ultrasonic sounds.

Squirrel repellents do not use chemicals or harmful radiation. 

Research from the University of Toledo shows that squirrels can hear ultrasonic sounds around 49kHz.

That’s much more than we can hear, but it will do the job of repelling squirrels.

Are plug in repellents better than chemical repellents?

Despite the seeming shortcomings of plug in repellents, they are a better and much safer alternative to chemical repellents.

Chemical repellents don’t last long, especially when they are being used outdoors. When used indoors, they may last longer but still pose a risk to you and your pets as we would look at later.

For example, when there is a heavy short or thunderstorm, the liquid repellent becomes very ineffective. You would have to buy another one or reapply the one you have left.

But with plug in repellents, it’s not like that.

Plug in repellents are not affected by weather conditions.

In fact, some are even waterproof so that raindrops or humidity do not affect their functionality.

What are the advantages of using ultrasonic pest repellers?

Ultrasonic pest repellers are the go-to devices that fit homeowners looking to keep their homes pest-free.

You might wonder: what makes squirrel repellents so popular? Why are they more preferred to other pest control methods like poisons or traps?

Here are a couple of reasons why:

Easy to use:

Ultrasonic pest repellers are very easy to use, even a child can comfortably operate one.

You just need to plug it into a socket or power outlet or put it under the sun in case it’s solar-powered. If it uses batteries, just slot in the batteries (some manufacturers provide a free set of batteries with their repellents).

After you do this, switch it on and your pest repellent starts work immediately. T

here are no special instructions, no particular set of rules you should follow, and definitely be no long manual for you to read through.

It’s super easy!

Can work on a wide variety of pets:

When you buy an ultrasonic pest repeller to combat a squirrel, you’re giving yourself an added advantage. The device won’t work on squirrels alone, but it would also repel other pests in your home.

One ultrasonic pest repeller can repel squirrels and other rodents without any extra effort!

The reason is that all these other pests are sensitive to high frequency sounds too, so they would also run away from your home due to the irritating effects it has on them.


Completely safe:

Ultrasonic pest repellents are one of the safest methods to repel squirrels. It’s like every home owner’s dream.


Firstly, it does not make use of any harmful chemical.

Chemical repellents, which are mainly composed of harmful chemicals, can pose a danger to your kids and pets indoors. They might not know what they are looking at is poison, and end up ingesting it. This could lead to serious internal injuries or death in serious cases.

With ultrasonic pest repellent, you don’t have to worry about things like that.

Even the high frequency sound waves given off by these ultrasonic devices are not harmful to humans.

Require little clean-ups:

When you use ultrasonic pest repellent, you don’t have to do all the dirty work of looking for dead animals or think of how to dispose of them.

Since ultrasonic pest repellents hardly kill animals, you will have no animal corpses turning up at your house and lawn unannounced.

If we were talking about cockroaches and mosquitoes here, this wouldn’t be an issue.

But now, we are talking about squirrels. Think of how your child would feel seeing a dead squirrel in the middle of your lawn.

Not to mention the fact that dead squirrels can spread diseases, even more than when they were alive.

Pest repellents simply chase the pest in question away, so the only thing you have to clean up is squirrel feces and any other carnage that has been left behind. Much more easier, right?

Lasts for years:

What other pest control method lasts for years?

Most pest control methods require you renew them regularly unless they will stop being effective. Ultrasonic pest repellers last anywhere from 3 to 5 years.

You can be sure you are going to be protected from squirrels for a long time.

It’s pretty cheap if you think about it: spend say $30-$50 on a device that keeps squirrells from your house for about 3 years.

It’s like a huge discount. These electronic devices don’t take much of your electricity too, as some models consume about 1-3W of electricity.

How to choose the best squirrel repellent

You cannot afford to use just any kind of ultrasonic repellent when it comes to squirrels. Ultrasonic squirrel repellents work in different ways, each pest repeller different from the next. For squirrels, there are certain features your ultrasonic repellents must have.

A strong casing:

Squirrels love to chew and gnaw at anything in sight.

If they come across your repellent device, there is every chance they might want to chew on it too. You have to select a device that can withstand their teeth, one with a strong, durable casing.

Also, do not buy a repellent that comes with a cable as they would definitely ruin the cable for you.

Very high frequency:

Going by the research conducted by the University of Toledo, it is advisable to use an ultrasonic repellent that has a frequency of 50khz or higher when dealing with squirrels.

Sometimes, homeowners purchase a repellent with a low frequency and expect it to chase away squirrels the same way it chased away bed bugs.

Squirrels need a repellent with a very high frequency. Of course, you do not need to worry as the frequencies will not bother you or others living in your home.

As for power, a powerful repellent will be able to emit these high frequencies. The more powerful a repellent is, the more it can release frequencies that can cover a wider area. Since squirrels move about a lot, you need a device that can affect them even as they move about your property.

360 degrees coverage:

Ensure that any ultrasonic repellent you want to purchase has 360-degree coverage.

This will allow sound to reach the squirrel in any direction. If it does not come with a 360-degree reach, there may be some areas in which the squirrel will is not able to hear the device. And when it cannot hear the repellent, likely, it won’t go anywhere.

Bright or flashing lights

Any of these lights on your repellent is an added advantage because they will easily scare squirrels away, even from afar. If your repellent doesn’t have them, not to worry, it will still do its job efficiently.

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How many ultrasonic devices should I use in a room?

This will depend on how big the room in question is, and what it contains. You cannot use one ultrasonic device per house, as these devices cannot penetrate walls or ceilings, so each room needs its own repellent.

If you’re concerned about having too many repellents in your house, then you can only put them in areas where you have noticed a lot of squirrel activity.

Generally, if your room measures bout 1000 sq. feet, you need just one repeller for it.

How about a big room?


For bigger places like a big garage or garden, you’re going to need either a repellent that can cover 5000 sq. feet at once or 2 to 3 regular pest repellers.

Some devices can cover up to 6000 sq. feet at once, do ensure you check its package before you buy.


The best time to use your ultrasonic pest repellent is during the day when squirrels are most active.

However, you have to be careful when handling anything that has to do with squirrels. Their mere presence can infect you with diseases.

We advise that you wear a breathing mask when you are going to check for squirrels or install a squirrel repellent, especially in an enclosed space like a basement or garage.

If they are usually outside but do not come into your house, then you don’t necessarily need a breathing mask.

After you have repelled squirrels away from home, there’s one more thing you have to do: disinfect. You have to disinfect your house as much as you can to prevent you and your pets from getting any disease even when they are no squirrels.

You might notice something unusual when you start using even the best squirrel repellent. Squirrels would start moving around more than they did before.


Because the sound disturbs them, so they looking for how to escape it.

However, after 3 weeks, you would notice that the devices repel squirrels well and they would gone after a while.

Just be patient, keep your home clean, and soon, you won’t have to see those pesky squirrels!