San Bernardino Electric Strike Installation: Buzz-In, Card and Keypad Entry

What to know first in San Bernardino

An electric strike is a keeper, the metal pocket in your door frame that the latch bolt rests in when the door is shut, with a small electric mechanism built in. At rest, a fail-secure strike holds that keeper fixed, so the latch can't leave the frame even if someone pulls on the door. Send it 12 or 24 volts of low-voltage DC for a few seconds and the keeper's jaw pivots free, the latch slides past, and the door opens. Cut the power and the keeper resets. A fail-safe strike works the opposite way: it needs power to stay locked and lets go when power is removed. Inside the building nothing changes. Turn the lever or push the bar and the latch retracts the way it always has, because the lock isn't electrified, only the frame side is. That's what makes electric strike installation attractive for doors that must meet exit rules: free egress is built into the mechanical hardware, not the wiring. The tradeoff is that someone has to cut metal or wood in your frame, align the keeper to a latch, and bring power to the jamb.

How we can help in San Bernardino

• Fail-safe strike installation. A fail-safe strike is energized all day, which means heat, continuous draw and a clear plan for outages. We confirm the strike is rated for continuous duty, pair it with a supply that can carry it, and talk through who would be affected if the door unlatched during a blackout before choosing it.
• Strikes for mortise locks and deadlatches. A strike releases the latchbolt. If your mortise lock also has a deadbolt that gets thrown at night, the strike won't move it, so we talk through how the door is locked up and unlocked each day. Often the deadbolt simply stays retracted during business hours and the strike handles everything else.
• Aluminum storefront and narrow-stile doors. Aluminum storefront frames leave very little room, and the deadlatch or hookbolt that narrow-stile doors carry demands a strike built for it. Adams Rite and a few other makers offer models for these frames. We check the jamb depth first, because some extrusions can't take a mortised strike without stiffening.
• Card, fob and keypad reader integration. For a single door, a keypad and a strike make a tidy upgrade over a keyed lock that everyone has copied. For several doors, a controller adds schedules and an audit trail. We install the door hardware and the reader side, and plan with you where the controller and software will live.
• Power supply, wiring and latch monitoring. A strike is only as reliable as the supply behind it. We provide a regulated, fused low-voltage supply sized for the strike and its release devices, run the wire through the frame, ceiling or a protected raceway, and label both ends so the next person can trace a fault in minutes rather than hours.

What's different about San Bernardino

Foothill and hillside neighborhoods see more wind and, sometimes, planned power shutoffs during dangerous fire weather. For a strike-controlled door that matters: a fail-secure strike keeps the door locked and the key working when the grid is off, while a fail-safe strike would unlatch. We choose fail-secure for exterior entries here, and add a small backup supply if the reader must keep working through an outage.

Older downtown buildings tend to have the doors strikes were made for: solid wood or steel doors, mortise locks worth keeping, and storefronts with narrow aluminum frames. In the business core of San Bernardino, the challenge is usually the frame, which may be plaster-backed, painted many times or part of a historic facade with rules about visible changes. We match the strike to the existing lock, protect original trim and hide the wiring where it won't show.

Near campuses, strikes appear on student-housing lobbies, tutoring centers, lab suites and private-study spaces. Doors see heavy use, cards get lost constantly and guests always try to follow someone in. A reader plus a strike lets managers cancel a lost fob in seconds, and a door-position switch flags propped doors. We pick heavy-duty models and short release times, and schedule installs around move-in surges.

Situations this covers

• A typical call: a small dental office near California Theatre of the Performing Arts wants its waiting-room door to stay locked between patients. The front desk sits across the room, so hygienists keep walking out to let people in. The door has a Schlage lever on a pressed-steel frame. We'd fit a fail-secure strike, put a release button on the reception counter, and leave the lever and key exactly as they are.
• Imagine a small church preschool wing. The hallway door must stay locked during class, yet teachers carrying children need to leave with one hand. A staff member checks a camera and presses a button at the director's desk to admit parents. We'd use a fail-secure strike on the existing lever lock, set a short release time, and confirm the door always latches behind each visitor.
• Think of a boutique in a strip center off I-10 with an aluminum storefront door and an Adams Rite deadlatch. The owner often works alone and wants to buzz in delivery drivers from the back counter without leaving a customer. The jamb extrusion is thin, so we'd choose a narrow-frame strike, add a reinforcing plate behind it, and check that the door still closes cleanly against its weatherstripping.
• Consider a tenant improvement in a two-story office building where a suite door opens off a rated corridor. The tenant wants a card reader. The frame carries a fire label, so a standard strike is out. We'd pick a strike listed for fire-rated openings, follow the manufacturer's cutout limits, and flag the work for the building's engineer or the fire marshal before we begin.

Step by step with Julian's Locksmith

1. Look at the door and the latch. The survey takes in the whole opening. Which way does the door swing? Is a closer pushing against the latch? Is the frame hollow, filled or wood? Where is the nearest ceiling space for a power supply? Those answers shape the strike model, the cut and the wiring.
2. Choose the strike and approve the quote. A good quote lists the strike model, voltage, failure mode, release device, power supply and any frame repair. We also confirm authorization: we need ID and proof you own or manage the property before modifying a door, and tenants should bring the landlord's approval for frame changes.
3. Prepare the frame. We tape the area, mark the opening from the actual latch height, and cut the pocket to the strike's template. Metal frames get a clean-edged cutout and, where needed, a back-box. Wood frames are routed. Dust and filings are vacuumed up, and bare metal is primed.
4. Run the wiring and set up power. Low-voltage cable runs from the strike to the power supply and the release device, routed through the frame, ceiling or a raceway. We pick wire gauge to suit the run, make clean terminations, and add the fuse or suppression diode the strike calls for.
5. Mount and align the strike. We seat the strike, adjust the keeper opening as the manufacturer allows, and test the latch from both sides. If the door is pushing on the latch, we correct the cause, whether hinges, closer or stop, instead of forcing the strike to compensate for it.
6. Test, demonstrate and hand over. Handover includes a demonstration, a written summary of settings, and any keys, cards or codes we programmed. We ask you to try the door yourself, because the person using it every day will notice things we won't. A follow-up call is welcome if anything feels off.

How we quote the job

• Lock type and strike model. Not all strikes are equal: duty rating, holding strength, listings and finish all affect cost. A quiet interior door doesn't need the same strike as a clinic entrance that opens all day. We choose the model based on how the door is used, not on what's most expensive.
• Wire distance and route. A short run through an accessible ceiling is quick. A long run through finished walls, concrete or several floors takes much longer, and may need an electrician or low-voltage contractor. We trace the route during the survey and show the cable work as its own line in the quote.
• Release method and add-ons. A desk button is the simplest release. A keypad costs more, a card reader and controller more again, and a networked system with software more still. Add-ons such as a door-position switch, exit sensor or intercom relay each appear on the quote, so you can add or skip them.

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 San Bernardino.

What not to do

• Choosing fail-safe because it sounds safer. A fail-safe strike releases when power is lost, so a blackout, a tripped breaker or a dead adapter leaves your entrance unlatched. For exterior doors, fail-secure with a keyed lock is usually the better answer.
• Ignoring door sag and closer pressure. A door that rides on its latch can't release, no matter how strong the strike is. The result is a buzzing coil and a frustrated receptionist. Correct the hinges, the stop and the closer first, then fit the strike.
• Cutting a fire-rated frame for an ordinary strike. Rated frames and doors carry labels, and a strike without the right listing can void the rating or fail inspection. Look for the label before you cut, and ask the building department if you're unsure.

What to do before we arrive

• Push on the door while someone presses the release. If it only opens when you lean toward the hinges, the door is binding on the latch and the strike is not at fault. That's called preload, and the fix is usually a closer or hinge adjustment, not a stronger strike.
• If you rent, get permission before any frame work. A strike means cutting your landlord's frame, and some leases treat that as an alteration. A short email describing the plan and the hardware, and noting that the work can be reversed, usually settles it. Keep a copy.
• Ask for a door-position switch if your door tends to get propped open. A door left ajar triggers a chirp or an alert, which stops a strike door from becoming an unlocked door by habit. The sensor is a small cost next to the equipment it protects.
• Give the strike its own power supply, or a clearly rated output on a shared one. A leftover wall adapter is a common reason for buzzing and sticking. Check that the voltage on the strike's label matches the supply, because 12 and 24 volts are not interchangeable.

Getting to San Bernardino

San Bernardino is our home base, so most addresses in town are a short drive. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.

Rush hour on University Parkway 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 San Bernardino: A natural arrowhead-shaped landmark on the face of the San Bernardino Mountains, visible across the valley, gave its name to the Arrowhead Springs neighborhood below it.

Business lock or door work in San Bernardino?

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.