Brea, Orange County
Magnetic Lock Installation in Brea
Short answer: Magnetic locks suit glass doors, double doors, aluminum storefronts and doors where cutting a strike pocket isn't practical. They are a weaker fit where the door must stay locked during an outage, because a maglock lets go when power is lost. In that case we'd look at an electric strike or an electrified lockset instead.

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 Brea 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.
What to know first in Brea
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.
How we can help in Brea
- Header-mounted maglocks on outswing doors. The standard configuration puts the magnet on the secure side of the header and the plate on the matching spot of the door. Through-bolts give the plate a firm grip. We set the plate loose enough to float and seat itself, then tighten the fasteners so nothing walks loose with slamming.
- 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. Surface magnets on aluminum can look bulky, and thin extrusions flex when the door is pulled hard. Backing plates spread the load. A shear lock hides the whole mechanism in the header, which many retailers prefer. We explain the tradeoffs and the cost difference before you choose.
- 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.
- Door position switches, bond sensors and monitoring. Propped doors defeat access control. A door-position switch with a timer can chirp or notify when a door has been left open too long, and a bond sensor flags a magnet that isn't holding. Both are inexpensive additions at installation time and tedious to add later.
What's different about Brea
School offices, childcare centers, churches and youth-sports buildings in Brea 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.
Condo lobbies often have glass doors, an elevator lobby and a garage pedestrian entry, all managed by volunteers on an HOA board. Magnetic lock installation here needs documentation: model, holding force, wiring diagram, battery dates and who tests the fire alarm release. We leave a clear record so the next board can service the system without starting from scratch, and the board knows what to ask for at budget time.
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 Brea 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
- 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.
- Imagine an aluminum storefront in a strip center with a header only a few inches deep. The tenant likes the look of a concealed lock. We'd compare a surface magnet with a backing plate against a shear lock, explain the cost difference and the header depth required, and get the landlord's approval before drilling a frame they own.
- For example, a fitness studio has double glass doors off a shared hallway near City Hall Park and the Brea Plunge. 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.
- Take a warehouse pedestrian door that opens outward onto a loading yard off Valencia Avenue. 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.
Step by step with Julian's Locksmith
- Survey the door, header and exit path. We look at the door type, how it swings, the header and frame, the glass, the closer and the hinges. Then we trace how a person leaves: where they stand, what they reach for and what could stop them. The exit comes first because everything else depends on it.
- 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. Mounting is about alignment and solid anchorage. We check that the plate meets the magnet fully with the door closed and under slight pressure, that fasteners are tight and that nothing rattles loose. Glass doors use clamps; metal and wood doors use through-bolts.
- Run the power, sensors and fire alarm release. Wiring decides reliability. We use wire of the right gauge for the distance, land connections on terminals instead of twisting wires together, and fuse the supply. Exit devices get their own path, so one failed component can't trap anyone.
- Program credentials and set the timers. We enter cards, fobs or codes, set the release time and schedules, and decide what happens if someone holds the door open. A short release time discourages tailgating; a longer one helps people carrying loads. We choose a sensible compromise for your door and write it down.
- Test every release and hand over. We walk through the door as a stranger would, looking for anything confusing. Then we show your staff the button and the sensor, give you the wiring record and tell you who to call about the alarm panel.
How we quote the job
- Holding force and number of leaves. Each additional leaf or door adds a lock, a plate, brackets and wiring. Several doors in one visit share survey time and programming, which lowers the cost per door, but we still quote each opening separately so you can approve some doors now and others later.
- Exit devices and fire alarm interface. Expect the exit chain to be a substantial part of the quote. Sensors, buttons, signs, relays and testing take time. Cutting corners here is how doors fail inspection or trap people, so we quote it plainly instead of hiding it in a lump sum.
- Cable route and header access. Short, accessible cable runs through a drop ceiling go quickly. Long runs, finished walls, concrete or fire-rated barriers take longer and may need other trades. We trace the route during the survey and quote the cabling as its own line.
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 Brea.
What not to do
- 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.
- 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.
- 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.
Advice before you book
- Tell your alarm company before we test the fire alarm release. Tripping the panel can notify the monitoring station and even the fire department, so the alarm contractor needs to schedule it or put the system on test. That is why this part of the job is arranged ahead of time.
- 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.
- 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.
- If you rent, ask the landlord in writing before anyone drills the frame. A maglock may need removal when you leave, so keep a copy of the wiring diagram, the model information and any hardware that was taken out. The next tenant, and your landlord, will thank you.
Reaching Brea
Brea is about 51 miles from our San Bernardino base, roughly 55 minutes in light traffic via I-215 South briefly to SR-210 West. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.
Stuck on the shoulder or in a parking lot along SR-90? Get somewhere safe, turn on your hazards, and give us the nearest exit or business so we can find the car without guessing.
About Brea: Brea's Art in Public Places program began in 1975 and has placed more than 140 sculptures and other artworks around the city.
| Neighborhoods | Downtown Brea, Olinda Ranch, Carbon Canyon, Blackstone, Greenbriar, Arovista |
|---|---|
| ZIP codes | 92821, 92823 |
| Main routes | SR-57, SR-90, SR-142, Brea Boulevard |
| From our San Bernardino base | about 51 miles via I-215 South briefly to SR-210 West (Foothill Freeway) through Rialto, Fontana, Rancho Cucamonga and La Verne, then SR-57 South (Orange Freeway) through Pomona and Diamond Bar and over the Puente Hills to the Lambert Road or Imperial Highway (SR-90) exits; alternate via I-15 South and SR-60 West to SR-57 South, or SR-60 West to SR-71 South and Carbon Canyon Road (SR-142) through Chino Hills for Olinda Village and Olinda Ranch |
Business lock or door work in Brea?
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
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.
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.
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 you confirm I'm allowed to modify my door?
Before we modify a door or lock, we verify ID and proof that you own, lease or manage the property, and tenants should have their landlord's approval for drilling the frame. It protects you as well as us. Our license is LCO7891, issued by BSIS, and you can verify it at search.dca.ca.gov.
What is magnetic lock installation?
Magnetic lock installation means mounting an electromagnet on the door frame and a steel plate on the door, wiring power to the magnet, and adding the release devices that let people leave. When the magnet is powered it holds the door shut; when power is removed, the door is free. We also program any reader or keypad and test every release path before we leave.
Do I need both a motion sensor and a push button?
On most exit doors, yes. The sensor releases the lock when someone approaches; the push button is a second, independent route that interrupts power directly. Some jurisdictions require both, and a single device is a single point of failure. Your fire marshal or building department has the last word, and we build to what they expect.
How far is Brea from your base?
Brea is about 51 miles from our San Bernardino base, roughly 55 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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