Through-bolted to exterior door face
NFPA 80 · NFPA 101 · ADA
Maryland, DC & Northern Virginia
A door latch protector is a steel or stainless plate that bolts to the outside of a door. It covers the narrow gap where the latch meets the strike. Without it, that gap is the easiest way in. A thief can slip a pry bar or thin shim inside and push the latch back. Outswing doors face the highest risk because the latch sits on the outside. A latch protector closes that gap and makes the door far harder to force open, pry or shim.
A solid steel plate blocks pry bars and screwdrivers from reaching the latch and strike plate.
Covering the door gap stops credit cards and thin shims from slipping the spring latch open.
A latch protector adds real security to your existing lock without replacing the door or frame.
King Locksmith And Doors Inc. is a commercial locksmith and door company serving Maryland, Washington DC and Northern Virginia. We work with small businesses, government agencies, hospitals, hotels and large organizations. Our technicians check each door, its swing, its lock and its fire rating before choosing a latch protector. Then we install it with tamper-resistant bolts so it stays put. You get one local team for assessment, installation and repair across the whole DMV region.
Not every latch protector fits every door. The right choice depends on door swing, lock type, door material and fire rating. Use these five checks to narrow down your options before we visit your site.
Door swing is the first thing to check. On an outswing door, the latch faces the street side. Anyone outside can see the gap and reach the latch bolt. These doors need a flat latch guard bolted across the gap.
Inswing doors are different. The door stop already hides most of the latch. Here, a wrap-around protector that covers the lock and door edge usually works better than a flat plate bolted on the face.
Your lock decides the shape of the guard. Cylindrical locks and deadbolts pair well with a standard flat latch guard. Mortise locks often need a longer plate that covers the latch and the deadbolt.
Doors with panic bars usually need a pin-style or exit device latch protector. It shields the rim strike without blocking the bar. The wrong shape can jam the lock or slow emergency exit. Tell us your hardware and we’ll match it.
Hollow metal doors are the most common in commercial buildings. A latch protector through-bolts to them cleanly with sleeve nuts. Wood doors need the same through-bolts, sized to the door thickness so they grip firmly.
Aluminum storefront doors have narrow stiles and thin walls. They need a slim guard made for storefront framing, not a standard wide plate. For every material, we choose stainless steel or coated steel to resist rust and outdoor weather damage.
Fire-rated doors carry a label from the maker or testing lab. Drilling them the wrong way can void that label and fail inspection. NFPA 80 limits what hardware can be added to a fire door in the field.
We check the label first. Then we use a latch protector and bolt pattern that keeps the door fully code compliant. This matters for hospitals, schools and government buildings that face regular fire marshal inspections and code audits.
Latch protectors come in common lengths of 12, 24 and 36 inches. A short plate covers a single latch. A longer plate covers a latch and deadbolt together, or adds strength on busy doors. Width depends on your door’s stile size.
Finish matters too. Satin stainless steel suits most buildings and resists rust. Black or painted finishes blend with dark doors. We match the finish to your hardware so the door looks clean and professional.
Both products fight forced entry, but they guard different parts of the door. Here is how a door latch protector compares with a high-security strike plate on outswing commercial doors.
Consideration
Door Latch Protector
Security Strike Plate
Blocks pry bars at the door gap
Leaves the latch gap open to tools
Covers latch so shims cannot reach it
Does not stop shims on outswing doors
Bolts onto the door face quickly
Needs frame work and often mortising
Visible plate discourages break-ins on sight
Hidden inside frame, offers no visual deterrent
Built for exposed outswing door latches
Designed mostly for inswing door frames
A latch protector only works when it fits correctly and stays tight. These are the problems we find most often during commercial site visits across Maryland, DC and Northern Virginia.
We inspect each exterior door, note swing, lock and frame, then recommend the right latch protector type.
Our technicians through-bolt each plate with tamper-resistant hardware so it cannot be easily unscrewed from the outside.
We fit pin-style latch protectors on panic bar doors to block attacks without slowing safe emergency exit.
We choose products and bolt patterns that protect fire-rated doors while keeping them within NFPA 80 rules.
We fix loose, bent, rusted or rubbing latch guards and replace plates that no longer work.
We standardize latch protectors across offices, clinics and hotels so every location meets the same security level.
Book a free site assessment. We’ll check your doors and recommend the right latch protector for your building and budget.
