Duarte Magnetic Lock Installation Built Around a Safe Exit

How this works in Duarte

A magnetic lock draws power the whole time the door is locked, usually from a 12 or 24 volt DC supply, and that supply becomes the heart of the system. A good install has a regulated, fused supply, suppression on the lock circuit so reader electronics don't pick up noise, and a relay arrangement that lets the fire alarm cut power. Battery backup keeps doors locked through short outages, but batteries age and need replacing every few years. A door-position sensor and a bond sensor, which confirms the magnet is actually seated, tell the system when a door is truly secure. In a sound design the reader or keypad tells the controller to release the lock, but the controller does not hold the only path to the exit. The sensor, the button and the fire alarm each have their own independent route, and that separation keeps the door safe when something fails.

Work included on a typical visit

• Inswing doors, brackets and offset mounts. Bracket choice is where installs go wrong. Inswing doors, deep headers and thick doors all change the geometry, and a cheap bracket that flexes gives up holding force. We use rigid kits, check them against the actual door, and avoid stacking parts that introduce play.
• Aluminum storefront doors and shear locks. Aluminum storefront frames have narrow headers and thin walls. A surface-mounted magnet can need a backing plate inside the extrusion, while a concealed shear lock hides in the header and clamps the top of the door. Shear locks cost more and need the right header depth, but they leave a very clean look.
• Exit sensors and push buttons. Exit devices are the part that makes a maglock safe. We choose a sensor that sees only the interior side, place the button where a person can find it in an emergency, and label it clearly. The button's wiring is independent of the controller, so a software failure never traps anyone.
• Power supplies, battery backup and surge protection. Nothing ruins a maglock install like a weak supply. If voltage sags, the magnet loses holding force; if the supply overheats, it quits. We mount supplies in ventilated spots, check voltage at the lock under load, and avoid sharing power with devices that could add electrical noise.
• Readers, keypads and controllers. A reader or keypad tells the controller to release the lock for a few seconds. We connect the reader, controller and lock, set the release time, and configure schedules and credentials. Cards or codes can be canceled instantly, which is far easier than rekeying a door.

What's different about Duarte

Senior living buildings sometimes use delayed-egress or controlled-egress locks on memory care wings, under strict state and local rules we don't improvise. For ordinary common-area doors, we favor light operating force, obvious exit buttons at reachable heights, and sensors that respond to slow walkers. We coordinate with staff on drills and leave the wiring documentation in the maintenance office, where the next person will look.

Clinics and medical offices near Santa Teresita on Buena Vista Street use maglocks on records rooms, medication areas, labs and staff corridors. Some units, such as memory care or behavioral health, use delayed-egress locks under separate rules, which we don't improvise. For ordinary doors we focus on quiet release, door monitoring and clear exits, and we coordinate with your fire alarm service so that testing doesn't disrupt patients.

Shopping-center tenants use maglocks mostly on stockroom, back-of-house and office doors, and sometimes on glass entry doors after hours. The storefront frame belongs to the landlord, and exit rules apply to the rear corridor too. In Duarte centers we check delivery routes, fire alarm tie-ins and the way back doors are really used, because a maglock that traps an employee carrying inventory is a problem waiting to happen.

Situations this covers

• Picture a records room in a clinic. Only certain staff should enter, and the door is rarely used but must be monitored. We'd install a maglock with a bond sensor and a door-position switch, a reader outside and an exit sensor inside, plus an entry log, so the office manager can tell when the door was opened and whether it was left unsecured.
• A common puzzle: the door releases, yet it feels stuck for a second. That is residual magnetism, often from a worn armature plate, rust, or a plate tightened too hard. We'd inspect and clean the faces, check alignment, replace the plate or fit a spacer if needed, and verify the door falls free the instant power is cut.
• Take a warehouse pedestrian door that opens outward onto a loading yard off Mount Olive Drive. Forklifts bump it, and the frame is thin. A maglock may not be the best choice, because the magnet needs solid anchoring and a flexing frame loses holding force. We'd weigh a strike or an electrified exit device first, and use a maglock only if the frame can be stiffened.
• Say an earlier installer put a maglock on an office door with a card reader and nothing else. There is no exit button, no sensor and no link to the fire alarm. We'd survey the door, explain what is missing, add a sensor, a push button and a release relay, and tell you honestly which parts the building official will care about.

How the visit works

1. Survey the door, header and exit path. Before choosing a magnet, we check what you're attaching it to. A header that flexes, a door that sags or a closer that slams will undermine any lock. We note the problems and, if necessary, fix them before the lock goes in.
2. Design the release path and quote. A good design starts with the exit. We list every way the door releases, then add the credential that lets people in. You see the quote door by door, with notes on what could change. Nothing is drilled until you have approved it.
3. Mount the magnet and armature plate. The magnet face and plate must meet flat. We check the gap, adjust the plate until contact is even, and clean both faces so no paint, dust or tape sits between them. Small gaps cost large amounts of holding force.
4. Run the power, sensors and fire alarm release. The push button interrupts lock power directly, the sensor does the same through its relay, and the fire alarm relay does it for the building. We test each one independently by operating it with the others disconnected.
5. Program credentials and set the timers. Programming depends on the controller. A standalone keypad takes a few settings; a networked system takes a user list and schedules. We create the first credentials with you, show you how to add and delete them, and leave the settings recorded.
6. Test every release and hand over. Testing covers power on, power off, credential, push button, motion sensor and fire alarm release, with the door pulled hard against the magnet. We also test the batteries, if installed, and show you how to check the system monthly.

Pricing factors

• Holding force and number of leaves. More force isn't always better. A magnet rated beyond what the door and frame can take adds expense without adding security, since the door will fail elsewhere. We choose a force that matches the door's weight, the frame's strength and the value of what is behind it.
• Exit devices and fire alarm interface. Fire alarm interface varies. Some buildings have a simple relay available; others require the alarm contractor to do the work or sign off. We tell you which situation you are in during the survey, so the schedule and budget account for it.
• Permits, inspections and timing. Scheduling flexibility helps. Work done in one planned visit during normal hours is simpler than a rushed one. We start at 6:30 a.m. every day, so many installs can be finished before a business opens. Tell us about inspection dates, tenant move-ins and opening days early, because our proposed schedule works backward from those.

Every job gets a clear quote before any work starts. Call (951) 903-3193 with the details and we'll tell you what to expect for your situation in Duarte.

Advice before you book

• Keep banners, window film and signs off the header and away from the lock. Heat and adhesive can affect the magnet face and the sensor, and a sign can hide the release button. A tidy, visible door is a safer door.
• Don't plan a maglock for a door that must stay latched in a fire. Rated doors, stair enclosures and some corridors have specific rules. Ask your fire marshal or building department before you buy hardware, and tell your installer what the door is and where it leads.
• Put the push button where someone leaving would reach for it, with a clear label. Hide it behind a plant or a counter and it stops being an exit. Staff and visitors should be able to see it without being told.
• Replace backup batteries on a schedule. A sealed battery typically needs replacing every few years, and a tired one may carry the lock for a short time instead of hours. Write the install date on the battery itself and put the next replacement on your calendar.

What not to do

• Wiring the exit button through the controller only. If the controller hangs or loses power to its logic, the button does nothing. The push button should interrupt lock power directly, so the door opens even if the access system is dead.
• Installing the lock without an exit plan. A maglock with a card reader and nothing else can trap people if the controller fails while the lock stays energized. A sensor, push button and fire alarm release aren't optional on exit doors, and an inspector will look for them.
• Powering the lock from a cheap plug-in adapter. Adapters sag, overheat and fail, and when they do the door opens or the lock buzzes. Use a fused, regulated supply with suppression, in a ventilated spot, with labeled wiring. Voltage that sags under load also weakens the magnet, long before the supply fails outright.

Getting to Duarte

Duarte is about 42 miles from our San Bernardino base, roughly 47 minutes in light traffic via Palm Avenue to I-215 North and I-15 South. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.

Rush hour on Central Avenue can stretch a drive considerably. We'd rather give you a realistic arrival window than an optimistic one, and we'll call you if a closure or a crash changes the plan.

About Duarte: Duarte incorporated on August 22, 1957, partly to avoid annexation by its neighbors, and Bradbury incorporated separately at nearly the same time.

Business lock or door work in Duarte?

Call (951) 903-3193 with the address, the doors or hardware involved and when the site is open. We'll quote the job before any work starts and book a time within our hours that suits your schedule.