Covina, Los Angeles County
Rekey Your Business Locks in Covina and Retire the Old Keys
Short answer: A rekey doesn't change copies of the new key, electronic credentials, alarm codes, keypad codes or safe combinations. It only retires the old keys for the cylinders we re-pin. If your Covina business also uses a keypad, fobs or a landlord's master, those need their own steps. We list every opening and explain what each change covers. Call (951) 903-3193.

A commercial lock rekey sounds like a big job, but what happens inside each cylinder is small and precise. A pin tumbler lock holds stacks of pins on springs; the right key lifts every stack to the shear line so the plug can turn. A rekey swaps the key pins for ones that match a new key, so the old key now lifts the stacks to the wrong heights and the plug stays put. The door, the lock body and the trim all stay where they are. For a business in Covina, that means new keys, dead old keys and little downtime. Julian's Locksmith does this on site with a mobile bench. Call (951) 903-3193 and tell us how many cylinders you have.
What to know first in Covina
Here is the honest list. A commercial lock rekey changes which keys operate the cylinders we touch, and it retires every old key for those cylinders. It does not change copies of the new keys, so key control after the job matters as much as the job itself. It does not change the PIN on a keypad lock, the codes on your alarm panel, the credentials on a fob or card system, or the combination on a safe or cash drop, though we can often change a keypad code or safe combination at the same visit. It does not affect a lock we didn't open, such as a roof hatch, a back gate padlock or a cylinder the landlord controls. And it can't fix a door that doesn't latch, a hasp screwed on from the outside or a window that opens without a key. We go through your doors and tell you what the rekey will cover and what it won't, so you can decide what to add before we pack the van.
What we can do on-site
- Re-pinning cylinders on site. Most commercial cylinders can be re-pinned at the door. We remove the cylinder, strip the old pins, rebuild it to the new key's cuts, reinstall it and test the key before moving on. Because we work from the van, you aren't left without a door while a part goes out to a shop.
- Recoring interchangeable-core locks. Interchangeable-core locks let us pull a figure-eight core with a control key and drop in a new one pinned to the new key. It's usually the fastest way to change many doors, because the core is swapped without taking the lock apart. We carry cores and pin them in the van.
- Doors that also have electronic parts. Smart and keypad locks offer a chance to retire keys altogether, but a mechanical backup remains on many models, and that cylinder is a hole in the plan if it stays on the old key. We rekey those backup cylinders so the override matches your current key system.
- Rekeying under a landlord's building standard. Suite doors in office and industrial parks can sit on a master key you don't control. When the landlord's master is the problem, your options are to ask the landlord to re-master, to add a second, tenant-controlled lock where the lease allows, or to leave the suite door alone and secure the interior doors instead.
- Forgotten openings that stay on the old key. Roll-up doors, yard gates and fenced storage areas depend on padlocks and cylinder locks that rarely get attention. Some can be re-pinned; many cheap padlocks can't. We replace those with rekeyable or higher-grade versions and bring them onto your key system.
What's different about Covina
Older commercial buildings in Covina often have mortise locks, transom windows and suite doors that predate the current tenants. Mortise cylinders are straightforward to re-pin, and the lock cases can often stay. Check with the landlord about the building standard and any shared stairwell or elevator-lobby doors, since a rekey of your suite should not disturb your neighbors' access. Ask whether the building keeps a lock schedule on file.
Strip malls and shopping centers in Covina often put dozens of tenants on one landlord's key system, with a storefront door, a rear service door and a stockroom per shop. When a store changes hands, the rear door is the one most often forgotten. Check your lease, rekey the rear door and the stockroom, and make sure the landlord's emergency key is the only copy outside your control.
Summer heat across inland Southern California dries out cylinders and expands metal. Exposed rear-door cylinders and gate padlocks take the worst of it and can seize or bind right after a rekey if they were already marginal. We clean and lubricate each cylinder with a dry lubricant, test it warm when we can and replace cylinders on exposed doors that show wear.
Common situations
- Consider a tire shop near Badillo Street whose office door was pried open over a holiday weekend. The thief didn't get far, but the shop's spare keys were in the desk. We replace the damaged cylinder, rekey the other doors, add a reinforced strike on the office door and give the owner a short list of what else to check.
- A boutique gym has a rear door whose key sticks and whose cylinder spins part way before catching. The owner asks for a rekey. We explain that the cylinder is worn out and recommend replacement, pinned to the same new key as the front door. The owner agrees, and both doors end up on one key that turns smoothly.
- A community nonprofit has a dozen volunteers carrying keys to a fellowship hall, a kitchen and a storage shed, and nobody knows who still holds what. We rekey all three, split the doors into two key levels so kitchen volunteers don't automatically get the office, and recommend restricted blanks so copies can't be made casually.
- A medical suite with fourteen office doors on key-in-lever locks wants each doctor to have a personal key and the office manager a master. We pin the doors as a small master-key system, cut the keys by code, label them with codes instead of names and give the manager a chart that explains the levels.
How the visit works
- List every opening. Walk the space with a notepad or your phone camera. Note each door's location, whether it has a deadbolt, a lever or an exit device, and what kind of key it takes. Send us the photos. Even a rough list lets us bring the right pinning kits and spare cylinders.
- Identify the cylinders on site. We carry pinning kits and blanks for the common commercial families, but not every keyway. If a cylinder belongs to a proprietary or restricted line, we confirm early whether we can supply blanks. Better to learn that during identification than after the cylinder is already out of the door.
- Decide rekey, recore or replace, door by door. You make the final call. A door that's rarely used and in good condition might wait for a later phase, while a door that has failed or leaks risk goes first. We write the plan down as a short list, so you can approve it, change it or ask questions.
- Choose the key system and quantities. If you want a master or manager's key, now is the time to say so. We explain how a master adds pin work and why it should stay with one or two people. If that's more than your business needs, we'll suggest a simpler layout that still gives you a clear key for each level.
- Re-pin, cut and test. We work from the van. Each cylinder comes out, gets rebuilt to the new key, goes back in and is tested with the new key before the next one starts. Doors are never left open or unlatched, and we ask you which entrances must stay usable during the work.
- Prove the old keys are dead and close out. At each rekeyed door we try an old key to show it no longer turns the plug. We then hand over the new keys, a short key chart and notes on which doors were touched. The work order records who approved the job and when.
Pricing factors
- Cylinder family and pin count. Pin count matters. Six-pin cylinders offer more key combinations than five-pin, but they take more rebuilding time, and some master-keyed cylinders carry extra pins. Interchangeable cores add another variable: swapping a core is quick, but pinning it to your key still takes bench time.
- Key quantity and key type. Later copies matter. A standard key is cheap to duplicate anywhere, which is also the problem. A restricted key costs more and needs your signature each time. Decide which cost you'd rather carry, now or later, before choosing the system.
- Structure of the key system. A single key for everything is the simplest and cheapest, but it creates one point of failure. Separating staff, management and owner doors costs a little more in pin work and gives you much better control. Most small businesses land on two or three levels.
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 Covina.
Mistakes to avoid
- Rekeying only the front door. Back doors, loading docks and roll-up gates are where intruders head because they know owners overlook them. Include every exterior opening and any interior door that guards cash, records or stock. Walk the list once in daylight and once after closing, when forgotten doors tend to show themselves.
- Buying whatever cylinders are cheapest each time one fails. Over a few years a business ends up with five brands, four keyways and a ring of keys no one can sort. Standardize your next replacements to the current system. Keep a short list of approved models for your openings so a maintenance person can reorder the right part.
- Assuming a rekey stops copies of the new key. It retires the old keys, but a standard key can be duplicated at nearly any store. Choose restricted keys for doors with many holders and log who has each one, or the problem returns within a year.
Advice before you book
- Photograph each cylinder face before the visit. The maker's name is usually stamped around the edge, and a clear photo of the keyway helps us bring the right pinning kits and spare cylinders to your Covina location instead of making a second trip.
- Photograph your key chart and keep a copy off site. A chart that lives only in the office drawer disappears with the office. Store a copy with your accountant or in a private cloud folder, tag keys with codes and keep the decoder separate.
- Treat an interchangeable-core control key like a master. Keep it locked up, give it to one or two people and write down who holds it. Anyone with a control key can pull cores, so losing one is a bigger event than losing a door key.
- Gather every old key you can find, even the odd ones. We use them during testing to prove they no longer work, and they help us spot keyways you didn't know you had. Bag them by door if you can, and don't throw any away until after the test.
Reaching Covina
Covina is about 39 miles from our San Bernardino base, roughly 45 minutes in light traffic via I-215 North to I-15 South. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.
Once the evening commute thins out on Grand Avenue, drive times usually shrink. That makes an evening call before closing a practical option for non-urgent jobs that you couldn't fit into the workday.
About Covina: A 1922 civic slogan called the compact town 'A Mile Square and All There'; the city now covers about 7 square miles.
| Neighborhoods | Sunkist Park area, Mesa Oaks, Vincent, Covina Park area, Downtown / Old Town Covina, Kelby Park area |
|---|---|
| ZIP codes | 91722, 91723, 91724 |
| Main routes | I-210, I-10, SR-57, Azusa Avenue |
| From our San Bernardino base | about 39 miles via I-215 North to I-15 South, then the Foothill Freeway (SR-210/I-210) West through Rancho Cucamonga, Upland, La Verne and San Dimas to the Citrus Avenue exit in Glendora and south on Citrus Avenue into downtown; Sunflower Avenue exit for Charter Oak and the east side, Azusa Avenue (SR-39) for the west side, or I-15 South to I-10 West through Pomona for the south end near IKEA |
Business lock or door work in Covina?
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 all commercial locks be rekeyed?
Most can, but not all. Standard mortise, rim, key-in-lever and interchangeable-core cylinders are usually rekeyable. Worn or damaged cylinders, locks with discontinued keyways and some inexpensive padlocks and cam locks aren't worth rebuilding or can't be. We test each lock first, tell you which to rekey and which to replace, and price both paths.
How much does a commercial rekey cost?
We don't post flat prices because the job varies. The main factors are the number of cylinders, their type and condition, whether you want restricted keys, how many keys you need, the structure of the key system and your timing. We walk the space, then give you a written quote before starting. Call (951) 903-3193 to begin.
My landlord controls my locks. Can I still rekey?
It depends on the lease. Some landlords keep a building-standard cylinder and an emergency key and don't permit changes, while others allow tenant rekeys with a copy for the manager. Check the lease or ask your property manager, and send us the answer. We won't touch landlord-controlled cylinders without clear authorization.
Does a rekey change my keypad code, alarm code or safe combination?
No. A rekey affects only the mechanical cylinders we re-pin. Keypad codes, alarm codes, card or fob credentials and safe combinations are separate. We can often change a keypad lock's code or a safe's combination at the same visit when the lock allows it, and we'll tell you which items belong to your alarm or access vendor.
Can exit devices and panic bars be rekeyed?
The cylinder on an exit device's outside trim or dogging can be rekeyed like any other rim or mortise cylinder. The device itself doesn't change. We also check that the bar releases freely from inside, because egress rules require that. If the device is damaged or worn, we can quote a repair or replacement.
How do I decide between rekeying and replacing commercial locks?
Rekey when the lock is sound, commercial grade and compliant. Replace when it's worn, residential grade on a heavy-use door, damaged or out of code, or when you want a restricted keyway, which a rekey can't provide. Julian's Locksmith examines each door, shows you the wear and writes up both options so you can compare them.
How far is Covina from your base?
Covina is about 39 miles from our San Bernardino base, roughly 45 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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