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.
Fast, Reliable Commercial Locksmith Across Union City
Commercial locksmith work in Union City typically costs $95 – $220 for a rekey, $140 – $400 for lock replacement or repair, and $150 – $350 for a commercial lockout, with the full price confirmed in writing before anyone is dispatched. We serve every commercial corridor from Alvarado-Niles Road down through the Dyer Street business district, usually arriving within 45 minutes for emergency calls. If you manage a storefront, office suite, or flex space here, you already know that a broken lock or lost key doesn’t just slow you down – it stops revenue. Call (409) 405-4485 and you’ll speak to a live person, not a call center. We’ll quote a flat price on the phone, text you a live arrival link, and send a background-checked, uniformed technician who is already holding your written estimate before they knock.
Why Preston Locksmith & Security Is Union City’s Preferred Commercial Locksmith Company
Union City business owners call us for the same reason they reorder inventory from a supplier who actually answers the phone: predictability. We’ve worked the commercial corridor along Alvarado-Niles Road enough to know which 1970s-era office buildings still run original mortise locks and which newer flex spaces on Dyer Street shifted to keypad and card access. That local pattern knowledge means we show up with the right cylinders, pins, and trim on the truck the first time – not after a second trip that costs you another closed hour.
The Relay Visibility Guarantee is the core of how we operate. You get a written price before work begins, a live trackable arrival time, before-and-after photos of the actual job, and a written guarantee on every repair. If something fails within 365 days, we return and make it right at no charge. That’s the 365-Day Done Right Promise, and it’s stamped on every invoice. We don’t ask you to trust a brand promise. We hand you a document that names the exact repair, the exact price, and the exact date the guarantee expires.
Every technician who arrives in Union City is background-checked, uniformed, and trained on Medeco, Mul-T-Lock, Abloy, Baldwin, and Sargent cylinders alongside the Schlage and Kwikset hardware most local businesses already have. Kevin Yoon founded this company in 2008 and built it on a simple rule: the price quoted on the phone is the price on the invoice. Dispatch and scheduling for Union City jobs are coordinated from our San Francisco Bay Area office, with crews staged locally to keep response times short.
High Security Locks in Union City
High security locks in Union City are the standard upgrade for businesses that have already dealt with a break-in, lost a set of master keys, or moved into a suite where former employees may still have copies. The work typically involves installing restricted keyway cylinders from Medeco, Mul-T-Lock, or Abloy – hardware that can’t be duplicated at a hardware store because the blanks are patented and only issued to authorized dealers. A single high-security cylinder install runs $180 – $400 per door in Union City, depending on whether we’re retrofitting an existing mortise lock or installing a fresh deadbolt above it. The key system is registered to your business, so every copy requires your written authorization.
Restricted Key Systems
With a restricted key system, we issue you a signature card that acts as the only way to order additional keys. No more guessing how many copies are floating around after a terminated employee leaves. For multi-tenant offices near the Union Landing shopping center, we can build a master key system where the property manager holds a grand master and each suite gets its own change key. Setup for a master key system on three to five doors runs $250 – $600 including cylinders and initial keys.
Retrofitting Older Commercial Doors
Some Union City storefronts still have original aluminum-frame doors from the 1980s and 1990s. The door itself is fine, but the lock cylinder inside is worn enough that a bump key or a cordless drill can defeat it in seconds. We can often retrofit these frames with a high-security mortise cylinder without replacing the door or the handle set. Figure $220 – $380 per door including the cylinder, labor, and two restricted keys.
Commercial Door Repair in Union City
Commercial door repair in Union City usually means one of three things: a sagging or misaligned door that no longer latches, a panic bar that sticks or won’t release, or a closer that slams or won’t hold. We see all three regularly in the older one- and two-story office buildings along Dyer Street, where years of foot traffic and Bay Area temperature swings take a toll on aluminum frames and steel hinges. A standard commercial door repair runs $140 – $350 depending on whether we’re adjusting the closer, replacing a hinge, or re-seating a panic bar. The price is quoted in writing before we touch a screw.
Panic Bar Repair and Replacement
Panic bars, also called crash bars, are the horizontal push bars on exit doors. Fire code requires them to release with a single push, every time. When a panic bar starts sticking or the latch won’t fully retract, we remove the bar, inspect the vertical rods if it has them, and repair or replace the mechanism. Panic bar repair in Union City runs $160 – $340. Full replacement with a new rim exit device starts around $450 installed, depending on door width and finish.
Closers and Hinges
A door closer that slams is more than an annoyance – it’s how employees get hurt and how glass doors shatter. We adjust, repair, or replace closers on commercial doors throughout Union City’s retail and office spaces. Closer replacement typically runs $180 – $320 including the new unit and labor. If the door sags because the top hinge is wallowed out, we can usually repair it with a new continuous hinge rather than replacing the whole door, which most landlords appreciate.
Trusted Brands We Service in Union City
We stock cylinders, pins, tailpieces, and trim for the hardware Union City businesses actually use – Schlage deadbolts on older office doors, Kwikset cylinders on commercial suite entries, and Medeco high-security systems for businesses that need key control. Our technicians are trained on all three plus Mul-T-Lock, Abloy, Baldwin, and Sargent, so we’re not stuck ordering parts when you needed the door working an hour ago. Because we run local service calls across the Bay Area daily, we keep common commercial lock bodies and mortise cylinders on the truck, not in a warehouse. That’s the difference between a same-day fix and a three-day wait for a part.
Common Commercial Locksmith Problems We See in Union City Homes
Wait – homes? Commercial locksmith issues don’t only hit storefronts. Plenty of Union City homeowners run a business from a garage, an ADU, or a converted back office, and they call us for the same problems we fix on Dyer Street.
- Old mortise locks on 1960s and 1970s construction. Many homes and older commercial buildings in Union City were built when mortise locks were standard. The internal springs and levers wear out, keys snap off inside, and the cylinder seizes. We can often repair or rekey the existing mortise lock rather than drilling it out and telling you to buy a new door.
- Garage or ADU conversions without proper locking hardware. Union City’s ADU boom means more home offices and workshops with a single Kwikset knob as the only security. A commercial-grade deadbolt or keypad entry – installed in about an hour with a written price before we start – closes that gap.
- Lost keys after a tenant or employee moves out. If you rent a room, a garage, or an ADU, every prior occupant who made a copy still has access. Rekeying the existing cylinders runs $25 – $45 per lock in Union City, far less than replacing hardware, and it takes minutes once we’re on site.
- Salt air and fog corrosion on exterior locks. Union City sits close enough to the Bay that marine air accelerates rust on exposed deadbolts and padlocks. We see it most on back gates, storage sheds, and rear exit doors. Regular lubrication and occasional cylinder replacement keep these working; a corroded cylinder replacement runs $95 – $180.
Pricing for Commercial Locksmith in Union City, CA
Here’s what you can expect to pay for commercial locksmith work in Union City. A standard commercial rekey runs $95 – $220 depending on how many cylinders we’re re-pinning and whether it’s a master key system. Replacing a commercial deadbolt or lever set runs $140 – $400 including hardware and labor. A commercial lockout – lost keys, jammed lock, or broken key in the cylinder – runs $150 – $350, with non-destructive entry attempted first so you don’t eat the cost of a new lock and a new door. High-security cylinder installation from Medeco or Mul-T-Lock starts at $180 per door. Master key system setup for a multi-suite building runs $250 – $600. There is no call-out surcharge added on arrival. No trip fee that magically appears. The price we quote on the phone is the price you pay. Call (409) 405-4485 for a free, specific estimate before we dispatch anyone.
We Also Serve Cities Near Union City
Our Commercial Locksmith team covers Union City and the surrounding East Bay, including Fremont, Newark, San Lorenzo, and Castro Valley. If your business sits right on the Fremont-Union City line or you manage properties across a few neighboring zip codes, we can schedule multiple stops in one visit. Learn more about our work across the area at Union City.
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 Commercial Locksmith in Union City
Yes. We attempt non-destructive entry first on nearly every commercial lockout in Union City. Drilling is a last resort, because it means you’re replacing the cylinder, the lock body, or the door itself. Our technicians carry pick tools, bypass tools, and air wedges suited to the mortise locks and commercial deadbolts common along Dyer Street and Alvarado-Niles Road. If non-destructive entry works – and it usually does – you’re back inside in minutes with zero hardware damage. Call (409) 405-4485 and we’ll quote the lockout price before dispatching.
We rekey whenever the existing cylinder is in working condition. Rekeying means swapping the internal pins so old keys stop working and new keys take over – no new hardware needed. In Union City, a standard commercial rekey runs $25 – $45 per cylinder, with a $95 – $220 typical range for a full job. If the cylinder is worn, corroded, or damaged beyond re-pinning, we’ll show you the problem, quote a replacement price in writing, and let you decide. We never replace a rekeyable cylinder just to pad the invoice.
Before the technician arrives, you get a live tracking link showing their location in real time. The tech is background-checked and arrives in a Preston Locksmith & Security uniform with a photo ID. You also get before-and-after photos of the work, and your written price is already in your email or on your phone before the technician touches the door. If someone shows up without the uniform, without the ID, or without the written estimate, call us at (409) 405-4485 before letting them start.
Yes. A master key system lets a property manager or owner open every suite while each tenant’s key only opens their own door. For multi-tenant buildings in Union City, we assess the existing hardware – many older buildings on Dyer Street still have mortise locks that can accept restricted master-pinned cylinders – then build a system with a grand master, suite masters, and change keys. Setup runs $250 – $600 for three to five doors including cylinders and initial keys. We issue a signature card so no additional keys can be cut without your authorization.
It typically includes one or more of these tasks: rekeying existing cylinders after a key is lost or an employee leaves; repairing or replacing door closers, hinges, and panic bars; installing high-security cylinders and restricted key systems; and handling lockouts with non-destructive entry when possible. In Union City, we often get calls that mix these tasks – an older mortise lock that needs re-pinning on the front door and a keypad entry install on the back door, for example. We quote the full scope in writing before starting, and the work usually takes 45 minutes to two hours on site. Call (409) 405-4485 for a specific price on your building.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Union City since 2008.






