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It takes less than 10 seconds for a criminal to kick through a locked door and disrupt your life.

Our Products Are Designed to Help Prevent Unlawful Entry

Home-owners spend thousands of dollars on stand-alone alarm systems and locks, only for a burglar to still have the ability to kick in their door. Our products turn your door into a nearly impenetrable barrier while notifying you before a successful break in – not after.

See DoorGuard, formerly known as Jamb Brace, in action


DoorGuard strengthens the weakest parts of your door – the frame, jamb, locks, and hinges – and is completely hidden within the trim. Proven, guaranteed quality constructed of commercial grade materials.

Proven, Guaranteed Quality

DoorGuard has been tested to the hurricane impact standard of 350 foot pounds to endure the strongest of attempts to enter. It also exceeds Hurricane Impact Standards and has been tested with Underwriter Laboratory’s ASTM F476-84 test method.


Designed With Law Enforcement

Designed by engineers alongside Law Enforcement and in cooperation with home builders and the Overland Park, Kansas, Crime Prevention Unit. Our solution is being adopted by several municipalities nationwide.

Exceeds Hurricane Impact Standards

Designed by engineers alongside Law Enforcement and in cooperation with home builders and the Overland Park, Kansas Crime Prevention Unit. Our solution is being adopted by several municipalities nationwide.

No Power? No Problem.

Requiring no electricity, DoorGuard prevents entry to your home during power outages unlike most home security systems.​

Door and Finish Varieties

DoorGuard is made for both sidelited doors and standard doors of varying widths. While the DoorGuard itself is hidden from view, L-shaped escutcheon plates come in aged bronze, antique brass, brass, and satin nickel to match your existing hardware.


Several communities and towns require reinforced doorframes to be installed in all newly constructed homes, reducing crime rates drastically. Contact us to get started on the process.

Intercept Protection System

Our alarm systems are designed to alert you when a burglar is still attempting to gain access to your home, not after they have already gained access.

Be Notified Before a Successful Break In

By arming the DoorGuard with a shock sensor door contact and a glass-break detector for our laminated windows, you’re alerted before the intruder gains entry.

The Forefront in Security Technology

At PHD we use alarms from nationally ranked systems. Reliable, advanced, and aesthetically tasteful, you’ll feel safer because you are safer.

False Alarm Reduction Features

Be certain that every alarm is a serious alarm. With less false alarms than typical security systems you know when there’s a legitimate cause to look into.


A man installing a wraparound escutcheon plate.
Our products are designed to be installed during the construction process or retrofitted in an existing door. Download the installation guide or contact a dealer and their factory trained installers for a simple, affordable installation.

Download the installation guide >

Tools used for Door Guard installation
Do It Yourself
For those who would like to install DoorGuard on their own, download our installer’s guide or locate a Physical Home Defense dealer for installation instructions, manuals, and support.

Contact a dealer >

Woman at desk answering support call
Monitoring and Support
Our systems are monitored by licensed and UL approved companies just like other alarm systems. The difference? Our system activates during an attempted break-in, not when the break-in is successful.

Find an installer near you >

Where to Buy Physical Home Defense Products

Ready to start your path to home protection? Call us at 913.851.4500, visit us at one of our retailers, or buy DoorGuard online to take the first step to protecting your family.

Request Your Free 24-point Security Consultation

Or call us at 913.851.4500

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