
Door Reinforcement Lock
A door that simply won't give.
- Reinforces far beyond a deadboltSpreads force across the frame so the door won't give.
- Kick, pick and bump proofTurns any door into a solid steel brace.
- Installs in about 5 minutesScrews included, all you need is a drill.
- One flip locks you inNo app, no battery, no monthly fee.
The real weak point
A lock is only as strong as the wood around it.
Your deadbolt isn't the weak point, the frame is. On most doors the strike plate is held by two half-inch screws biting into a thin pine jamb, so a hard shove splits the wood instead of beating the lock. That is why most forced entries take seconds and leave the deadbolt itself untouched.
The TremShield Door Reinforcement Lock fixes the frame, not just the door. It spreads the force of a kick across a wide steel plate anchored into the jamb and reinforces the door far beyond what a standard deadbolt holds on its own, spreading the load across the frame so the door won't give.
A warning, then a wall. That's a system, not a gadget.

Flip it down for the hours that matter.
You don't need it in the afternoon. You need it when you're asleep and the deadbolt is the only thing between your bedroom and the street. Flip the brace down before bed and the door will not open from outside, not with a bump key, not with a shoulder, not with a card on the latch.
In the morning, flip it up and leave like normal.
No tools but a drill. No app. No subscription.
Find the spot
Hold it across the door and the frame, beside your existing lock.
Mark it
Mark the screw holes through the plate with a pencil.
Drill
Pilot the holes with a 1/8" bit, the most common drill size.
Screw in
Drive the included screws. Flip it down and you're locked in.
Security a lease usually rules out, without the lease ever knowing.
No landlord call, no contract, no holes you can't fix. It mounts with the included screws in about five minutes, and the small marks patch over with a dab of filler when you move out. Your deposit stays yours.
It finishes what the alarm starts.
The TremShield Alarm warns you the second someone tests a window or door. This is what buys you the next sixty seconds: a door that simply will not give.
See the alarm
Questions, answered calmly
From the security guide
Why Doors Get Kicked In, and the Cheap Upgrades That Stop It
A kicked-in door is a wood-and-screws problem, not a lock problem. Here are the cheap, satisfying upgrades, starting with 3-inch screws, ...
Read the guide →Stay one step ahead
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