What Frequency Works Best for Keeping Bats Out of an Attic?

Bat battle veterans, I need your expertise! Last month, I discovered bats roosting in my attic. Desperate to avoid harming them, I bought an ultrasonic repellent claiming to emit 25-55 kHz. The bats… didn’t care. If anything, they partied louder. Now I’m torn, do specific frequencies actually work, or is this snake oil with a speaker?

What’s your experience? Share your success stories, fails, and whether I should just hire a pro with a one-way exit door.

Ultrasound is a waste of money. Bats use echolocation, they’re immune to man-made frequencies. Hire a pro to install exclusion doors!

Tried 35-45 kHz. Bats left for 2 weeks… then came back with friends. Research says frequencies only work short-term. Seal gaps and use strobe lights!

Disturbing bats is illegal in many areas! Use repellents only during non-mating seasons. My “high-frequency” device just annoyed the neighbors.

Ultrasonic worked for me! Used a ​30-50 kHz device and sealed gaps. Bats left in 10 days. No return in 6 months! Pro tip: Place the device near their roost.

Contrary to myths, my 55 kHz emitter cleared the attic in 2 weeks! Key: Run it 24/7 and pair with bright LED lights. Bats hate both!

Tried 35-45 kHz. Bats left for 2 weeks… then came back with friends. Research says frequencies only work short-term. Seal gaps + use strobe lights!

Bats hate airflow. Install a powerful attic fan and seal cracks. They’ll relocate naturally. No harm, no fines!

@CatCareGuru Did you try ​higher frequencies? Mine stuck to 50+ kHz. Maybe your bats were stubborn teens?