Smart locks
House lockouts
Re-keying
Deadbolt upgrades
Schlage
Kwikset
Car keys & fobsNon-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.
Get your free estimateMedeco Locksmith in Union City, CA | Citadel Locksmith
We provide independent Medeco locksmith service across Union City, from Decoto to the BART-adjacent townhomes. We’re not a Medeco-authorized dealer, but our technicians rebuild these high-security cylinders every week, and we stock OEM pin kits and restricted key blanks locally. What makes our Medeco work different in Union City is the family key-control planning that most jobs here actually require. Call (833) 589-8078 for a free estimate.
If you own a Medeco lock in Union City, you already understand something most homeowners don’t: a lock is more than a deterrent. It’s a system. And Medeco builds one of the most demanding systems on the market, with angled cuts, rotating pins, and a sidebar that defeats conventional picking. We work on these locks daily because Union City’s housing stock, its multi-generational households, and its position on the 880 corridor create demand that a generalist locksmith simply doesn’t see often enough to build real fluency. Our Medeco sales & service expertise runs deep, and it’s available right here in Union City service area coverage.
Why Union City Residents Choose Us for Medeco Service
Roland Vásquez, our owner and lead technician, first encountered a seized Medeco cylinder in the Excelsior District decades ago and has been rebuilding them ever since. He trained formally in the locksmithing program at City College of San Francisco, where the mechanical fundamentals still guide how we approach every job, and he’s spent years servicing high-security hardware across the Bay Area. When a Medeco lock in Union City needs re-pinning, repair, or key duplication, we know the pinning chart, the sidebar geometry, and the failure patterns that are specific to this area’s climate and housing stock.
We stock OEM Medeco pin kits, springs, and restricted key blanks for fast turnaround on Union City service area calls. The difference between a technician who has rebuilt hundreds of Medeco cylinders and one who has occasionally swapped a core shows up in the details: clean pin stacks, precise sidebar alignment, and keys that work the first time. Union City residents call us because we speak the brand fluently, not because we advertise it on a van.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in Union City
- Dust-packed keyways after dry summers. Union City’s inland-bay climate brings long, dry summers where fine grit collects in south- and west-facing exterior locks. Medeco’s tight tolerances mean that dust buildup causes stiff rotation faster than it would in a looser cylinder. We clean and lubricate these without compromising the pin stack.
- Winter rain and swollen wood doors. When a door swells during the wet season, the deadbolt binds at the strike plate. The Medeco cylinder isn’t failing; the door has moved. We realign the strike and adjust the door rather than convincing you to replace a perfectly sound lock.
- Worn pin stacks in original 1970s and 1980s tract home hardware. Homes in Decoto and Alvarado were frequently built with original Medeco cylinders that have never been rekeyed or serviced. Decades of use wear down springs and pins, making keys stick or fail to turn. A re-pin with OEM parts restores the original feel and security.
- Lost restricted keys and missing key cards. Medeco restricted keys can’t be duplicated at a hardware store. When a Union City homeowner loses the only copy, we source blanks through specialty suppliers and rekey the cylinder to a new key set, issuing the number of authorized copies the household actually needs.
- Binding cylinders on townhomes near the BART station. Newer infill townhomes and condo clusters near Union City BART often have multi-point hardware or keyed-alike Medeco cylinders installed at build. We handle these too, including re-pinning to consolidate key rings for owners managing multiple entries.
Medeco Service in Union City: What Local Conditions Mean for Your Equipment
Union City’s 94587 ZIP has one of the Bay Area’s most concentrated South Asian communities, and many multi-generational households here run a single front-door key across three generations. That means a Medeco restricted-key rekey in Union City is rarely a one-key job. It’s a family key-control plan: cutting and issuing authorized copies to adult children and grandparents in the same house, tracking who holds each key, and planning for future rekeys when a key inevitably goes missing. This pattern is far less common in neighboring Fremont, where households are more dispersed and single-family homes change hands with fewer multi-generational key holders involved. A locksmith who treats your Medeco rekey as a simple lock swap is missing the point of why you bought a restricted key system in the first place.
“A lock is only as strong as the decision behind it.” That’s the principle Roland brings to every Union City job, and it applies with particular force to Medeco hardware.
Medeco Models & Products We Service in Union City
We service the Medeco Maxum deadbolt, the Biaxial cylinder, the M3 high-security cylinder, and Medeco KeyMark interchangeable cores. Each line has different pinning geometry and failure characteristics, and we can identify which system you have from the keyway alone. Our parts approach is simple: OEM Medeco pin kits, springs, and keys whenever available, because the hardened rotating pins and sidebar are the entire security story. Substituting aftermarket pins can quietly degrade pick and bump resistance, and we won’t do that to you. We rebuild and re-pin sound cylinders rather than pushing unnecessary replacements, but when a cylinder body is cracked or a sidebar is worn beyond spec, we’ll tell you honestly and install a new Medeco unit.
Medeco Service Pricing in Union City
Medeco service in Union City typically runs $120 to $260 for a standard rekey or cylinder rebuild, while a new Medeco Maxum deadbolt installed runs roughly $280 to $450 depending on the door condition and finish. Restricted key blanks and additional authorized copies add $15 to $35 per key. The honest variables are labor time, the number of keys you need issued, and whether the door itself requires strike realignment. We quote the full price on the phone before anyone is dispatched, and that is the price on your invoice, no arrival surcharge. Call (833) 589-8078 for a free estimate on your specific Medeco job in 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 – Medeco Locksmith in Union City
Yes, we can create a new restricted key set for your Medeco lock in Union City. We source the blanks through specialty suppliers because local hardware stores cannot cut restricted profiles, and we’ll rekey the cylinder to the new set so the lost key becomes useless. The process usually takes one to two business days for blank sourcing. Call (833) 589-8078 and we’ll walk you through what documentation your key system requires.
Fine dust from Union City’s dry inland-bay summers collects in the keyway and works into the tight tolerances of the Medeco pin stack, causing the gritty, stiff rotation you’re feeling. We clean the cylinder and lubricate it with a dry graphite-free lubricant that won’t attract more grit. If ignored, the drag can accelerate spring wear and eventually cause key failure.
Yes, we can pin and issue new employee keys for Medeco master-key systems in Union City. The work requires the master-key chart and pinning information, so bring the system documentation if you have it. If you don’t, we can still decode and rebuild the system, though it takes longer. Call (833) 589-8078 for an estimate on expanding your existing master-key setup.
In most Decoto tract homes with original builder-installed Medeco cylinders, a rekey and re-pin with fresh OEM springs and pins restores full function and security. The cylinder body itself is usually sound; the wear is in the pin stack. We’ll inspect it and tell you honestly if replacement is warranted, which is the exception rather than the rule.
Yes, we install Medeco high-security deadbolts on newer townhomes and condos throughout Union City, including the transit-oriented developments near the BART station. We’ll match the door prep to the cylinder and ensure the strike plate is seated for clean throws. Call (833) 589-8078 for a free installation estimate, and we’ll confirm the door condition on site before quoting.
Service Areas Near Union City
Beyond Union City, we serve Medeco customers across the Bay Area. Our Medeco service in Concord covers the East Bay’s northern corridor, while Medeco service in Woodside reaches Peninsula homeowners with estate properties and older high-security hardware. We also handle calls in Mountain View, Pittsburg, and Petaluma for Medeco rekeys and rebuilds.
Book Your Medeco Service in Union City Today
If your Medeco lock in Union City needs rekeying, repair, or replacement, call Citadel Locksmith at (833) 589-8078. We’ll quote your full price on the phone, and for urgent jobs, we’ll work with your schedule to get there as soon as possible. Same-day service is often available for Union City residents.
Written by Roland Vásquez, Owner at Citadel Locksmith, serving Union City and the greater Bay Area.