La Mirada, Los Angeles County
La Mirada Magnetic Lock Installation Built Around a Safe Exit
Short answer: Magnetic lock installation in La Mirada puts an electromagnet on the door frame header and a steel armature plate on the door. Power holds them together; cut the power and the door is free. We choose the holding force, mount both parts squarely, wire the power supply and release devices, and test that the door opens every way it must.

Many maglock calls start after something goes wrong: an inspector flags a door, a tenant says the exit button doesn't work, or a staff member finds a door that won't release. Magnetic lock installation in La Mirada should begin with the exit, not the lock. We identify how people leave, which devices release the door, what happens when the fire alarm sounds or the power fails, and whether your building department will want to see it. Then we choose the magnet, mount it, wire it and test it. If a lock someone else installed isn't right, we'll tell you what has to change.
Magnetic Lock Installation in La Mirada: what to expect
A magnetic lock has two parts. The electromagnet, a steel housing with a coil inside, mounts to the frame, usually on the header above the door. The armature plate, a flat piece of steel, mounts to the door at the matching spot. When the coil is energized, the plate is pulled onto the magnet face with a rated holding force, commonly around 600 pounds on single-door models and 1,200 pounds or more on heavy-duty ones. Cut the power and the magnetism collapses, so there is nothing to retract and nothing to turn. The plate sits on a flexible bushing so it can seat flat against the magnet even if the door moves a little. Small things matter. A gap the thickness of a business card cuts holding force, paint or rust on the faces weakens the grip, and a plate that is out of alignment can leave a door that looks locked but pulls open with a firm tug. Good magnetic lock installation is mostly alignment, solid fastening and clean wiring.
What we can do on-site
- Inswing doors, brackets and offset mounts. When a door swings into the secured space, the magnet and plate can't meet face-to-face without help. Bracket kits offset one or both parts so they close squarely. We pick the kit based on door thickness, header depth and swing, then test with the door fully open, closed and under pressure.
- Aluminum storefront doors and shear locks. A storefront in the shopping centers around La Mirada usually belongs to the landlord, so we plan the mounting around what is allowed. We measure the header, look at glass stops and hardware, and recommend surface or shear mounting based on depth, appearance and budget.
- Double doors and paired magnets. A pair of doors can use two single magnets, a double-door unit on a shared header, or a magnet on one leaf with flush bolts on the other. The best choice depends on which leaves open, how often, and what the code expects. We map that out during the survey.
- Readers, keypads and controllers. A maglock pairs well with almost any credential: cards, fobs, PIN codes, mobile credentials. What matters is that the controller's relay is rated for the lock and that the exit path never depends on that relay. We match the pieces, then test each credential type.
- Door position switches, bond sensors and monitoring. Without feedback, a maglock looks locked even when the plate has shifted, the door is ajar or the power is off. Monitoring contacts close that gap. We add them to the doors that matter most, such as server rooms, storerooms and exit routes, and set alerts to suit your staff.
What's different about La Mirada
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 La Mirada 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.
School offices, childcare centers, churches and youth-sports buildings in La Mirada often use maglocks on glass entry doors so staff can control who comes in. Children and visitors must always be able to leave, which makes the sensor, button and fire alarm release central. We design for substitute staff and volunteers, label the exit button plainly, and keep the system simple enough for anyone to understand.
Campus-area buildings use maglocks on study lounges, labs, maker spaces, bike rooms and glass-front student services offices. Heavy traffic and slamming are hard on plates and brackets, so we favor rigid mounting and bond sensors that report a magnet that isn't seating. Credentials turn over every term, which suits cards or mobile access better than keys. We also plan installation windows around the semester calendar.
Common situations
- For example, a fitness studio has double glass doors off a shared hallway near La Mirada High School. Members badge in, and the owner wants evening entry without handing out keys. We'd fit a magnet on each leaf, wire both to a card reader and controller, add sensors and a push button inside, and connect a fire alarm relay with the landlord's alarm contractor.
- Consider an office whose doors fell open during a blackout. The cause was a small plug-in adapter with no backup feeding two maglocks. We'd replace it with a fused, regulated supply, add battery backup so the doors hold through short outages, and recommend a mechanical keyed lock for off-hours security, so protection no longer hangs on one adapter.
- 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.
- Think of a boutique with frameless glass doors on patch fittings and a floor closer. The owner wants after-hours card access but doesn't want holes in the glass. We'd use a glass-door bracket to clamp the armature plate, mount the magnet on a header plate above the door, hide the cable in the soffit, and add a push button and sensor inside so the door always opens for anyone leaving.
How the visit works
- 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.
- Design the release path and quote. We also confirm authority to modify the door. We need ID and proof that you own or manage the property, and tenants should have their landlord's permission, since mounting a magnet means drilling the frame.
- Mount the magnet and armature plate. We mark the layout, drill and anchor the bracket or backing plate into solid material, and mount the magnet square to the door. The plate goes on the door with through-bolts and a flexible bushing so it can seat flat against the magnet face, and we tighten everything to specification.
- 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.
- 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.
- 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.
- Cable route and header access. Headers can hide surprises: steel, conduit, glazing channels or nothing solid to anchor into. We probe before committing, and our quote notes what we found and what might change once the frame is open. A header that turns out to be thin drywall or hollow aluminum means backing plates or a different mounting plan, and we would rather tell you that before drilling than after.
- Permits, inspections and timing. Multiple doors, rated corridors and tenant improvement projects involve more coordination. We flag early which parts need a licensed electrician or fire alarm contractor, so your budget reflects the whole job and not only ours. When several trades touch one door, someone should own the schedule, and we are glad to coordinate.
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 La Mirada.
Practical tips before you call
- 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.
- Aim the exit sensor with care. It should see people approaching from inside, not passers-by outside or sunlight on a glass door. Seal gaps at the bottom of the door and keep paper, signs and decorations out of its view.
- Test the exit button and sensor monthly. Press the button and confirm the door releases; walk toward the door from inside and confirm the sensor does the same. Put the test on a calendar, because exit devices are exactly the part nobody notices until it fails.
- Keep the magnet and plate faces clean. Wipe them with a dry cloth. Paint, tape, stickers and grease all widen the gap and reduce holding force. Never paint the faces, and don't cover them with decorative trim. A magnet that seems to have lost its grip is often just dirty or misaligned, so check those first.
Common errors that cost time and money
- Assuming holding force equals security. A 1,200-pound magnet on a door with weak hinges, a thin frame or a gap at the edge can still be forced somewhere else. The door, the frame and the hinges matter as much as the magnet.
- 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.
- Using a maglock where the door must stay latched. Fire-rated doors, some stairwells and other openings need hardware that latches positively, which a maglock does not do. Ask your building department before you specify one. If you are not sure how your door is classified, look for a label on the edge of the door or frame.
Service in La Mirada
La Mirada is about 56 miles from our San Bernardino base, roughly 70 minutes in light traffic via I-215 North briefly to I-15 South, SR-60 West. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.
Rush hour on Leffingwell Road 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 La Mirada: McNally bought more than 2,200 acres of Rancho Los Coyotes in 1888, then built an olive oil plant and a railroad station on Stage Road; his Windermere Ranch estate is now Neff Park.
| Neighborhoods | Gardenhill, Granada Heights, Biola University area, Neff Park area, Creek Park, Hillsborough |
|---|---|
| ZIP codes | 90638, 90639 |
| Main routes | I-5, Beach Boulevard, Imperial Highway, Valley View Avenue |
| From our San Bernardino base | about 56 miles via I-215 North briefly to I-15 South, SR-60 West (Pomona Freeway), then SR-57 South (Orange Freeway) to the Imperial Highway (SR-90) exit and west on Imperial Highway to Beach Boulevard (SR-39) and into town; alternate via I-215 South and SR-91 West through the Santa Ana Canyon to Beach Boulevard, then north through Buena Park to Rosecrans Avenue or Imperial Highway, or I-5 North to Valley View Avenue for the southwest corner |
Business lock or door work in La Mirada?
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.
Frequently asked questions
Do magnetic locks use a lot of electricity?
A single lock draws only a few watts, but it draws continuously while the door is locked, unlike a strike. Several doors on one supply add up, which is why we size the supply and any battery backup for the total load. A properly sized supply also keeps voltage steady at the magnet, protecting holding force.
How do I secure the door after hours if power can fail?
Pair the maglock with battery backup for short outages, and consider a mechanical keyed lock for longer closures, as long as the exit rules for that door allow it. For doors that must stay locked through any outage, an electric strike or electrified lockset is a better fit. We walk you through which setup suits your door.
Can a maglock be used outdoors?
Only models rated for outdoor exposure. Rain, dust, salt air and sun wear out standard indoor magnets. Outdoor-rated units, sealed wire entries and drip protection help, and corrosion-resistant plates matter near the coast. Exterior doors also see more wind and slamming, so the mounting has to be rigid, with the wire entry sealed against water.
Will a card reader or keypad work with a magnetic lock?
Yes. A reader or keypad signals a controller, which releases the lock for a few seconds. Cards, fobs, PIN codes and mobile credentials all work, as long as the controller's relay is rated for the lock. We connect the reader, set release times and programming, and test each credential type before we leave.
Are magnetic locks allowed on exit doors in California?
They can be, when installed to the exit rules the building code sets: a way for people to leave without special knowledge, such as a sensor and push button, release on fire alarm, and release when power fails. Details vary by building and occupancy, and your fire marshal or building department decides. We design to those rules and tell you what to confirm.
Can you put a maglock on a glass door?
Yes. Tempered glass can't be drilled, so we use glass-door brackets that clamp the armature plate to the glass without holes, and we mount the magnet on a header, sidelight or mounting plate. We check the glass thickness, the pivot or hinge condition and the closer first, because a door that sags won't seat against the magnet.
How far is La Mirada from your base?
La Mirada is about 56 miles from our San Bernardino base, roughly 70 minutes in light traffic. Arrival time depends on traffic and on the job the technician is finishing, so we give you an estimate on the phone before you commit.
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