How It Works:
Stop intruders before they ever get in.
The Door Bull installs between your door and frame, instantly reinforcing your home’s most vulnerable point.
Deadbolts focus all the force on a tiny spot. The Door Bull spreads it out—making your door up to 100x harder to break through.
Most break-ins happen fast. Kicking in a deadbolt takes 8 seconds. The Door Bull makes it nearly impossible.
Intruders go for the hinges next. That’s why we include 6 heavy-duty screws to reinforce them too.
Engineered for real security.
Built to hold when it matters most.
Patented Design.
See Why Over 15,000 Families Trust the Door Bull
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Better than a Deadbolt
Deadbolts only secure the lock. The Door Bull secures the entire frame—where most break-ins actually happen.
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Seamless Convenience
Quick install with the included drill bit. Daily use takes seconds.
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No Tech Required
No batteries, no charging—just physical security you can trust.
DIY Installation made easy.
Watch our installation video for an install in under 10 minutes! All you need to have is a drill, we provide the drill bit.