Wall, floor, or overhead mount
ANSI/BHMA A156.15 · UL 228 · NFPA 80
Maryland, DC & Northern Virginia
A door holder keeps a door open until you or your building needs it closed. Some are simple mechanical holders on the floor, wall, or closer arm. Others are electromagnetic. A wall magnet holds the door open, and the fire alarm cuts its power so the door swings shut. That makes them the right choice for fire and smoke doors in corridors, stairwells, and patient wings. The right holder improves traffic flow, protects walls from damage, and helps you pass your next fire marshal inspection.
Magnetic holders release on alarm signal, so fire and smoke doors close automatically and contain danger.
Doors stay open during busy hours, so staff, patients, and carts move through halls without stopping.
Holding doors open stops people from propping them with wedges, which damages closers, hinges, and frames.
King Locksmith And Doors Inc. is a commercial locksmith and door company serving Maryland, Washington DC, and Northern Virginia. Our trained technicians install, repair, and inspect door holders for small businesses, government agencies, hospitals, hotels, schools, and large enterprises. We know local fire codes and work closely with your alarm contractor, so every holder releases the way it should. We show up on time, explain your options clearly, and stand behind every job we do.
Not every door holder fits every door. The best choice depends on whether the door is fire rated, how it is used, and what it is mounted to. These five points will help you decide.
Look for a fire label on the hinge edge of the door or frame. If the door is fire rated, it must close on its own during a fire. A kickdown stop or wedge is not allowed.
For these doors, NFPA 80 only allows hold-open devices that release automatically when the fire alarm or a smoke detector activates. That means an electromagnetic holder or closer-holder with a built-in detector. Non-rated doors can use mechanical holders.
Think about how often the door opens and who uses it. A hospital corridor with beds and carts needs a holder that stays open all day and releases cleanly.
For busy areas, a magnetic wall or floor holder is a strong choice. It holds firmly, yet staff can pull the door free by hand. For lighter use, like an office storage room, a hook holder may be all you need. We match holders to traffic.
Wall-mounted holders are the most common. They work best when the door opens close to a solid wall that can support the unit.
If the wall is too far or made of glass, a floor-mounted holder is the answer. Overhead holders mount at the top of the door frame and suit doors that swing into wide, open areas. Each electromagnetic option needs the right power supply and wiring path, which we plan before we install.
An electromagnetic holder only works safely when it is wired to your fire alarm system. When the alarm trips, power to the magnet drops and the closer pulls the door shut.
Many holders run on 12, 24, or 120 volts, so the voltage must match the alarm panel or power supply. We coordinate with your alarm contractor, test every release, and confirm each door closes and latches fully. That is exactly what inspectors look for.
Holding force is how hard the holder grips the door. Too little, and wind or a strong closer will pull the door free. Too much, and people struggle to close it by hand.
Heavy doors and doors with strong closers need more holding power. We check the door weight, closer setting, and drafts in the hallway, then pick a holder with the right force so the door stays put but still closes when it should.
Many buildings prop doors with kickdown stops or wedges. It seems easy, but it creates safety and code problems. Here is how an electromagnetic door holder compares side by side.
Consideration
Electromagnetic Door Holder
Kickdown Door Stop
Releases automatically when the fire alarm sounds
Door stays open during a fire
Meets NFPA 80 rules for fire doors
Not allowed on fire-rated doors
Staff close doors with a gentle pull
Staff must bend down to release
Protects closers, hinges, and walls from strain
Fights the closer and strains its arm
Clean, professional look on walls or floors
Scuffs floors and looks worn quickly
Door holders take a beating in busy buildings. Small problems can lead to failed fire inspections or doors that will not close in an emergency. Watch for these warning signs.
We mount and wire new wall, floor, and overhead holders to match your doors and building needs.
We work with your alarm contractor so every magnetic holder releases the moment the fire alarm sounds.
We fix doors that drift shut, stick open, or fail to release, often in a single visit.
We swap worn or outdated holders for modern units with better holding force and a cleaner look.
For doors without a nearby wall, we install overhead closers with built-in hold-open and optional smoke detection.
We test release, holding force, and door closing, then flag any problems before your fire marshal visits.
Get expert door holder installation, repair, and inspection across Maryland, DC, and Northern Virginia. Request your free site assessment today.
