Non-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Locksmith in Union City, CA
Locksmith work in Union City often comes down to timing and hardware age. Homes built across the 1960s through 1990s still carry original Schlage or Kwikset hardware that has seen decades of coastal bay air, and commercial spaces along Alvarado-Niles Road mix older storefront locks with newer access systems. That mix means most Union City jobs are either a worn-out deadbolt that finally quit, a rekey after a tenant change, or a storefront latch that no longer lines up. We send a background-checked, uniformed technician with a written price before any work begins. Call (409) 405-4485 and you’ll talk to a live person, day or night.
Why Union City Homes Are Different
Union City sits at the base of the East Bay hills, close enough to the bay that salt air works its way into lock cylinders over time. That corrosion is the most common culprit when a key starts sticking or a deadbolt won’t turn smoothly. Homes in neighborhoods like Decoto, Alvarado, and the tracts north of Whipple Road were built in waves, and many still use the original entry hardware installed when the house went up. The result: a lot of Kwikset and Schlage cylinders that need cleaning, lubrication, or outright replacement after years of bay moisture.
Terrain matters too. Hill-adjacent streets and split-level homes near Contempo or Seven Hills often have multiple entry points, including garage side doors and back gates with their own locks. When we rekey a Union City house, we walk every door, not just the front one, because a back door on an old Kwikset knob is frequently the one a previous owner or tenant still has a key to. Coastal fog and damp mornings also mean we check the strike plate alignment on exterior doors; wood swells in winter and the latch stops catching the plate cleanly, which reads as a broken lock when it’s really a door that shifted a quarter inch.
Our Main Union City Services
Most calls we take in Union City come down to two things: a door lock that has failed or worn out, and a house or commercial space that needs new keys without replacing every piece of hardware. All four services below have their own Union City pages with detailed pricing and timelines.
Commercial Locksmith in Union City
We work on storefronts and offices along Alvarado-Niles Road, Decoto Road, and the industrial buildings off Dyer Street in Union City. A commercial locksmith job here usually involves rekeying after an employee leaves, replacing a mortise lock on an older aluminum door, or installing high-security cylinders from Medeco or Mul-T-Lock. Storefront latches also take a beating from constant traffic, and we see misaligned doors and worn Adams Rite hardware regularly. Kevin Yoon schedules a written scope and flat per-lock pricing for commercial work, so a bookkeeper knows the number before the first tool comes out. Read the specifics on our Commercial Locksmith in Union City page.

Rekey Locks in Union City
Rekeying is the smart first call after you buy a house, change tenants, or lose track of who has a spare key in Union City. We swap the internal pins inside your existing cylinder so old keys go dead, and you get new keys without paying for new hardware. That works on Schlage, Kwikset, and Yale locks, and we do it on the spot for single-family homes throughout Union City. It’s fast, and the price is confirmed in writing before we begin. See exact per-cylinder pricing and how long a whole-house rekey takes on our Rekey Locks in Union City page.

Door Lock Repair in Union City
When a deadbolt won’t throw or a latch won’t catch, the fix can be anything from a loose screw and misaligned strike plate to a cylinder that has seized from bay-area moisture. In Union City we see a lot of wear on doorknobs and deadbolts that were installed twenty or thirty years ago and have never been cleaned or lubricated. A door lock repair in Union City usually costs less than full replacement, and we’ll tell you honestly if the hardware is too far gone to save. Kevin Yoon’s technicians always show a repair price in writing before starting, and the 365-Day Done Right Promise covers the work. Details and costs are on our Door Lock Repair in Union City page.

Residential Locksmith in Union City
A residential locksmith in Union City does more than open a door when keys are locked inside. We assess every exterior door on the house, check the deadbolt throw and strike plate, and flag any window or sliding-door locks that no longer latch. Homes in Union City built in the 1970s and 1980s often have original Kwikset knobs that have loosened to the point of being bypassable, and upgrading to a modern Schlage deadbolt is a common job for us. We bring the hardware, install it, and show you before-and-after photos of everything we touched. The full rundown is on our Residential Locksmith in Union City page.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Union City
We service Schlage, Kwikset, Medeco, and Yale hardware across Union City, and we stock common residential deadbolts and commercial cylinders in our local vans. That means a standard rekey or deadbolt replacement is usually done same-day without a second trip to a supply house. For less common finish or trim styles, we order and have them within a few days. See what we stock and service on our brands page.
Pricing for Locksmith in Union City, CA
These are the typical ranges we quote on the phone for Union City jobs. The written estimate you receive before we dispatch is the exact number on your invoice, no additions on arrival.
| Service | Typical range in Union City |
|---|---|
| Rekey, standard cylinder (parts included) | $25 – $45 per cylinder |
| Rekey, high-security cylinder (Medeco, Mul-T-Lock) | $45 – $95 per cylinder |
| House-wide rekey, 4 – 6 locks, new keys | $120 – $240 |
| Deadbolt replacement, standard Schlage or Kwikset (installed) | $95 – $185 |
| Deadbolt upgrade to high-security (Medeco, Mul-T-Lock) | $180 – $340 |
| Door lock repair, latch or cylinder fix, no new hardware | $65 – $165 |
| Commercial rekey, per lock (storefront, office) | $35 – $85 |
| High-security commercial cylinder installation (Abloy, Medeco) | $150 – $320 per door |
In Union City, the price goes up when a lock is fully seized and needs replacement rather than cleaning, or when a commercial job involves restricted keyways like Medeco or Abloy. Whatever the job, the number we quote on the phone is the number on the invoice, and it’s in writing before a single tool leaves the bag.
Neighborhoods We Serve in Union City
We cover all of Union City, from the flatlands around Decoto and Alvarado to the hillside streets near Seven Hills and Contempo. Response time is typically 30 to 60 minutes depending on where in Union City you are and the time of day, and you’ll have a live trackable arrival time the moment we dispatch. Neighborhoods we regularly serve include:
- Decoto
- Alvarado
- Seven Hills
- Contempo
- Dyer Street / industrial corridor
Service Area – Cities Near Union City
If you manage property or run a business that spans the southern East Bay, we also serve Fremont, CA directly, along with Newark, CA for quick residential rekeys. North of Union City we cover San Lorenzo, CA and the hillside communities around Castro Valley, CA. Each city page has local pricing and neighborhood details for that area.
Serving Union City, CA - Our Local Coverage Area
We’re based in the Union City area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Locksmith in Union City
We typically reach most parts of Union City within 30 to 60 minutes of your call, and you get a live trackable arrival time before the technician leaves the bay-area dispatch office. You will never sit through a four-hour window. Call (409) 405-4485 and a live person confirms the exact ETA.
For most residential rekeys and deadbolt replacements, no permit is required in Union City. Some HOAs, especially in planned communities, want to know about exterior hardware changes, so check your covenants before swapping visible handlesets. Commercial storefront work is also permit-free for lock rekeying and cylinder replacement. We can tell you what applies to your situation on the phone, and our written estimate is always free.
Yes. The written price we give you before dispatch is the exact number on your invoice, and there is no call-out surcharge added on arrival in Union City. If we find an additional lock that needs work, we give you a second written price before touching it. Call (409) 405-4485 for a free estimate.
What happens when you call
- 1A real person answersNo phone trees - talk to a local locksmith pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Union City Customers Say
"Showed me how to rekey a lock myself for the next time."
- Omar W."Commercial office lock replacement. Booked in the app, got a confirmation and a text with ETA. Quick and tidy."
- Jake L."Re-pinned the locks at our rental. Convenient and quick."
- Tina D.






