# Do Ultrasonic Pest Repellers Really Work? What Science Actually Says
**URL:** https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450
**Category:** Rodents, Reptiles & Bats
**Created:** [April 8, 2024, 4:04am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450 "2024-04-08T04:04:34Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@techgeekTom](https://forums.thanoshome.com/u/techgeekTom)
#### Post date: [April 8, 2024, 4:04am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/1 "2024-04-08T04:04:34Z")
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### 🔊 Quick Answer: Do Ultrasonic Pest Repellers Really Work?
**Ultrasonic pest repellers generally do NOT work as a reliable pest control solution.**
Most scientific studies and pest control professionals agree that:
- Ultrasonic sounds **do not consistently repel rodents or insects**
- Pests often **become accustomed** to the noise over time
- Walls, furniture, and distance **block or weaken ultrasonic waves**
While some users report short-term effects, ultrasonic repellents **do not eliminate infestations** and should not replace proven pest control methods.
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Hi everyone, I’ve been seeing ads for ultrasonic pest repellers and I’m tempted to try them out. Does anyone have experience with these devices? Do they really work?
#### Why Ultrasonic Pest Repellers Often Fail
#### What Studies Say About Ultrasonic Pest Control
#### Why Some Users Think They Work (Short-Term Effect)
#### What Works Better Than Ultrasonic Repellers
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### Author:  [@nature\_nancy](https://forums.thanoshome.com/u/nature_nancy)
#### Post date: [April 8, 2024, 4:11am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/2 "2024-04-08T04:11:35Z")
Hey techgeekTom! From what I’ve read, there’s mixed evidence about their effectiveness. Some people swear by them, while others haven’t seen any results. It might also depend on the type of pests you’re dealing with.
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### Author:  [@skepticSam](https://forums.thanoshome.com/u/skepticSam)
#### Post date: [April 8, 2024, 4:14am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/3 "2024-04-08T04:14:18Z")
I’m with you, nature\_nancy. I think most of these gadgets are just gimmicks. There’s no replacement for proper pest control and keeping your house clean.
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### Author:  [@proPestPatrol](https://forums.thanoshome.com/u/proPestPatrol)
#### Post date: [April 8, 2024, 4:18am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/4 "2024-04-08T04:18:45Z")
Actually skepticSam, some ultrasonic devices have been scientifically proven to repel certain pests. It’s all about the frequency. If you get the right device for the particular pest, it can work wonders.
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### Author:  [@EthanJohnson](https://forums.thanoshome.com/u/EthanJohnson)
#### Post date: [May 20, 2024, 9:13am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/5 "2024-05-20T09:13:16Z")
I tried one, and I haven’t seen any mice since then. Not sure if it’s related, but it’s been peaceful.
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### Author:  [@EmilyCarter](https://forums.thanoshome.com/u/EmilyCarter)
#### Post date: [May 20, 2024, 9:13am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/6 "2024-05-20T09:13:50Z")
They might work for some, but pests can get used to the noise over time. It’s not a permanent fix.
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### Author:  [@tBenjaminAdams](https://forums.thanoshome.com/u/tBenjaminAdams)
#### Post date: [May 20, 2024, 9:14am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/7 "2024-05-20T09:14:21Z")
I agree with you. The effectiveness may diminish with time. Also, different pests react differently to ultrasonic waves.
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### Author:  [@LucasEvans](https://forums.thanoshome.com/u/LucasEvans)
#### Post date: [May 20, 2024, 9:15am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/8 "2024-05-20T09:15:27Z")
I live in a tropical area, and it seems like ultrasonic repellents don’t do a thing against mosquitoes. Has anyone else had this issue?
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### Author:  [@AvaReynolds](https://forums.thanoshome.com/u/AvaReynolds)
#### Post date: [May 20, 2024, 9:16am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/9 "2024-05-20T09:16:28Z")
Well, there’s no solid scientific evidence that proves ultrasonic repellents are consistently effective. It seems to be a hit or miss.
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### Author:  [@WilliamGray](https://forums.thanoshome.com/u/WilliamGray)
#### Post date: [May 20, 2024, 9:16am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/10 "2024-05-20T09:16:59Z")
Agreed. It’s about finding what works best for your situation. I think combining methods is the best approach.
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### Author:  [@GadgetGuru](https://forums.thanoshome.com/u/GadgetGuru)
#### Post date: [July 18, 2025, 2:28am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/11 "2025-07-18T02:28:06Z")
@techgeekTom I tested 3 different brands last summer. The solar-powered one worked best for mice but did nothing for spiders. Maybe pests have frequency preferences?
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### Author:  [@EcoWarrior1](https://forums.thanoshome.com/u/EcoWarrior1)
#### Post date: [July 18, 2025, 2:29am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/12 "2025-07-18T02:29:42Z")
these devices can distress pets too! My neighbor’s dog started avoiding their patio after they installed ultrasonic repellers.
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### Author:  [@RentersSolution](https://forums.thanoshome.com/u/RentersSolution)
#### Post date: [July 18, 2025, 2:33am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/13 "2025-07-18T02:33:24Z")
As someone in an apartment, these were my only option (no traps/poison allowed). Surprisingly kept roaches away for 6 months before I had to switch units.
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### Author:  [@PestControlPro](https://forums.thanoshome.com/u/PestControlPro)
#### Post date: [July 18, 2025, 2:35am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/14 "2025-07-18T02:35:54Z")
@proPestPatrol is right about frequencies. The industrial-grade ones we use at work actually work, but most consumer models are underpowered.
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### Author:  [@UrbanGardener](https://forums.thanoshome.com/u/UrbanGardener)
#### Post date: [July 18, 2025, 2:38am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/15 "2025-07-18T02:38:22Z")
Combined mine with peppermint oil cotton balls - the double approach finally stopped my rat problem! @EthanJohnson maybe your success was similar?
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### Author:  [@ScienceSkeptic](https://forums.thanoshome.com/u/ScienceSkeptic)
#### Post date: [July 18, 2025, 2:42am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/16 "2025-07-18T02:42:08Z")
University study showed rodents initially avoid ultrasonic zones… then return within 2 weeks when hungry enough. Temporary solution at best.
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### Author:  [@TropicalLiving](https://forums.thanoshome.com/u/TropicalLiving)
#### Post date: [July 18, 2025, 2:45am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/17 "2025-07-18T02:45:23Z")
@LucasEvans Same here in Hawaii! Mosquitoes laugh at these devices. Ended up installing fine mesh screens instead - only thing that worked.
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### Author:  [@BudgetBugBuster](https://forums.thanoshome.com/u/BudgetBugBuster)
#### Post date: [July 18, 2025, 2:49am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/18 "2025-07-18T02:49:26Z")
Bought a $15 unit from Amazon. Either it worked or my spider problem coincidentally disappeared during winter. Hard to tell!
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### Author:  [@FarmLife](https://forums.thanoshome.com/u/FarmLife)
#### Post date: [July 18, 2025, 2:52am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/19 "2025-07-18T02:52:00Z")
Barn cats 1, Ultrasonic repellers 0. After wasting $200 on various models, I adopted two mousers. Problem solved permanently.
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### Author:  [@TechieMom](https://forums.thanoshome.com/u/TechieMom)
#### Post date: [July 18, 2025, 2:56am UTC](https://forums.thanoshome.com/t/do-ultrasonic-pest-repellers-really-work-what-science-actually-says/450/20 "2025-07-18T02:56:14Z")
Look for models with variable frequencies. My smart repeller cycles through 12 different patterns and seems more effective than static ones.
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