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Get your free estimateMedeco Locksmith in Antioch, CA | Cypress Lock & Key
We provide independent Medeco locksmith service across Antioch, including Medeco repair in Oakley and surrounding areas, with rekeys, deadbolt repair, and cylinder replacement for Biaxial, M3, and Maxum hardware. What sets our Medeco work apart here is that we account for the Delta’s salt-laden air, which attacks exterior high-security locks faster in Antioch than almost anywhere else in Contra Costa County. If your Medeco deadbolt is turning hard or seizing up, we’re the crew that knows why. Call (877) 265-4385 for same-week scheduling in 94509 and 94531.
Why Antioch Residents Choose Us for Medeco Service
Medeco isn’t a sideline for us. We carry genuine Medeco cylinders, restricted key blanks, and hardened bolt hardware, and we service these locks weekly across Antioch. Noel Carver, our owner and lead locksmith, trained on pin-tumbler and high-security systems at Fresno City College and has spent two decades running calls in the San Joaquin Valley. He’ll tell you straight: Medeco in Brentwood or anywhere else is only as good as the person servicing it. That’s why we use OEM-compatible parts instead of cheap aftermarket internals that quietly strip away the UL 437 rating you paid for. We’re local to Antioch, we stock what these locks need, and we don’t make you wait on a parts order from a distributor three states away.
We’re an independent service provider. We’re not factory-authorized, and we don’t claim to be. What that means for you is honest advice when a repair makes sense and when a replacement is the smarter move. Know your hardware, know your options – the rest is just turning a key.
Styles & brands we work with
Common Medeco Locksmith Problems We Solve in Antioch
- Seized deadbolts near the marina and river corridors. The hardened bolts and internal pin chambers on Medeco deadbolts pit and seize when salt-laden damp air works into the mechanism. Keys turn hard, or the bolt stalls halfway. We disassemble, clean, and rekey when the internals are salvageable, and swap in genuine hardened bolts when they aren’t.
- Sticking Maxum deadbolts in 94531 hill subdivisions. Hot, dry summers bake the finish and weatherstripping on Maxum deadbolts in newer Antioch homes. Once that seal cracks, water reaches the cylinder and freezes the pin stack. Owners in the hillside tracts call us after the first cold snap, when the key won’t insert at all.
- Restricted-keyway cylinders jammed by the wrong blanks. Medeco Biaxial and M3 cylinders have angled cuts that generic hardware-store copies can’t replicate. When someone tries a copy anyway, the cylinder jams or the key snaps in the lock. We cut genuine restricted keys and repair the cylinder without replacing the whole housing.
- Lost control keys on restricted-keyway systems. If you lost the control key for your Medeco system, you can’t get new keys cut at any corner shop. We handle control key replacement with proper documentation and genuine Medeco key blanks.
- Mixed-generation hardware on older 94509 properties. Many ranch and stucco homes near the river still have original interior mortise locks from the 1950s or 1960s, paired with a newer Medeco deadbolt on the front door. We service both on the same trip, so you don’t need to call around for vintage parts and then find a separate Medeco shop.
Medeco Service in Antioch: What Local Conditions Mean for Your Equipment
Antioch sits at the eastern end of the Sacramento – San Joaquin Delta, and that geography does something specific to Medeco locks. The waterfront neighborhoods around the marina and river corridors pull in marine moisture that carries salt, and that salt-laden air attacks the hardened steel in Medeco deadbolts far more aggressively than the drier inland air in Concord or Walnut Creek. A Medeco Maxum deadbolt on a house near the Antioch Marina will corrode noticeably faster than the same deadbolt on a home ten miles inland, which is why we also offer Medeco service in Knightsen for clients in drier inland areas. That means cleaning and lubrication has to happen on a shorter cycle here, not the five-year interval the product literature implies. It also means we see bolt pitting that owners mistake for a broken lock, when the real problem is environmental. If your exterior Medeco hardware sits within a few blocks of the water, expect to service it about twice as often as a hillside home in 94531.
On an older ranch home off the river-side blocks of 94509, our tech found a Medeco Biaxial deadbolt on the front door that would barely turn. The hardened bolt and pin chambers were pitted and gritty from Delta moisture, while the interior mortise lock was still original 1960s hardware. We cleaned and rekeyed the Medeco to a fresh restricted key, replaced the pitted bolt and strike with genuine parts, and left the vintage mortise lock serviced so one property had matching keys on both generations of hardware.
Medeco Models & Products We Service in Antioch
We work on the Medeco hardware already installed in Antioch homes and businesses. That includes the Maxum residential deadbolt, the Biaxial deadbolt and knob cylinder, the M3 and M3+ UL 437 high-security cylinders, and the high-security rim and mortise cylinders found on older 94509 doors. For repairs, we use genuine Medeco cylinders and restricted key blanks. We don’t drop in aftermarket internals that void the high-security rating. If a Maxum or Biaxial cylinder is only stiff or dirty, we clean, lubricate, and rekey it. Once the bolt or pin chamber is pitted beyond cleaning, replacement is the honest call, and we’ll tell you that before we quote the work.
Our Antioch stock covers the common Medeco service parts, which means most deadbolt repairs and rekeys happen in one visit rather than two. For older mortise-format Medeco cylinders and less common tailpiece configurations, we may need an extra day to pull from our distributor. Either way, you’ll know the timeline before we start. This page is part of our broader Medeco sales & service coverage across Contra Costa County.
Medeco Service Pricing in Antioch
Medeco service pricing in Antioch depends on what the lock actually needs. A straightforward rekey on a serviceable Biaxial or M3 cylinder typically runs $45 – $85 per cylinder, including new restricted keys. A Maxum deadbolt replacement, installed and keyed to your existing system, lands around $250 – $400. If the cylinder is seized and we can clean and re-lubricate rather than replace, you’re looking at the lower end. Bolt and strike replacement from Delta corrosion usually adds $60 – $120 on top of the cylinder work. For older mortise-style Medeco cylinders in 94509 homes, the retrofit adds labor because we often have to match the existing door prep.
What drives the cost: whether the cylinder can be cleaned or must be swapped, how many keys you need, and whether hardened bolt hardware has pitted beyond service. Every estimate is free. We quote the full price on the phone before anyone is dispatched, and that’s the price on the invoice. Call (877) 265-4385 for an exact quote on your Medeco hardware in Antioch.
Serving Antioch, CA — Our Local Coverage Area
We’re based in the Antioch 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 Antioch
Salt-laden air from the Delta and marina corridors accelerates corrosion on the hardened bolt and pin chambers. The fix is typically a disassembly, cleaning, and re-lubrication, with replacement of the bolt only if pitting has gone too deep. Call (877) 265-4385 and we’ll tell you which one you’re dealing with before we quote.
Yes. We cut genuine Medeco restricted keys using proper documentation and genuine blanks. Hardware store copies won’t work in a restricted keyway and will often jam the cylinder, so it’s cheaper to get them cut correctly the first time.
It’s usually a weatherproofing failure, not a defect. Antioch’s hot, dry summers crack the weatherstripping on Maxum deadbolts, letting moisture into the cylinder when winter damp arrives. We clean the pin stack, replace the seal, and the deadbolt works again. Call (877) 265-4385 for a free estimate.
We handle both on one trip. That’s a common setup in Antioch’s older ranch and stucco homes, where the front door got a Medeco upgrade but the interior hardware was never touched. We stock or source vintage mortise parts alongside genuine Medeco components.
No. Cypress Lock & Key is an independent Medeco service provider. We’re not manufacturer-affiliated. We choose to use genuine Medeco parts because they’re what the lock was engineered for, and because aftermarket internals quietly defeat the high-security rating you paid for.
Service Areas Near Antioch
We run Medeco service calls across the eastern Contra Costa corridor. Beyond Antioch’s 94509 and 94531 ZIPs, we cover Martinez, Mill Valley, San Mateo, Larkspur, and Hillsborough. Our full Antioch service area page lists all neighborhoods we serve. For Medeco work on the Peninsula, see our Medeco service in Portola Valley and Medeco service in Los Altos pages.
Book Your Medeco Service in Antioch Today
If your Medeco lock is sticking, seized, or needs a rekey, call us at (877) 265-4385. We’ll quote the full price on the phone and get your high-security hardware working again. Same-week scheduling is available for most Antioch neighborhoods, including the 94509 river blocks and 94531 hillside subdivisions.
Written by Noel Carver, Owner at Cypress Lock & Key, serving Antioch and Contra Costa County.