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Get your free estimateMedeco Locksmith in North Fair Oaks, CA | Citadel Locksmith
We provide independent Medeco locksmith service across North Fair Oaks, CA 94063, and Medeco service in West Menlo Park, from single deadbolts to full master-key rebuilds. What makes our Medeco work different here is simple: North Fair Oaks has a high-turnover rental market where restricted-key systems routinely lose their documentation, so we spend as much time rebuilding key control as we do turning pins. Call (833) 589-8078 if you’ve got a Medeco cylinder that needs honest attention.
Why North Fair Oaks Residents Choose Us for Medeco Service
Medeco isn’t a lock you learn from a YouTube video. The Biaxial, M3, and Maxum cylinders use angled pin cuts and a sidebar that read the key in three dimensions, not two. Get the pinning wrong by a few thousandths and the cylinder either won’t turn or pretends to be secure when it isn’t. We work on this hardware daily across North Fair Oaks, and we’ve seen the full range of what these locks do after decades of service in rental stock, weather, and tenant turnover.
Roland Vásquez, our owner and master locksmith, got his start in locksmithing at City College of San Francisco and has spent the better part of three decades on jobs where the wrong pin stack meant a lock that failed at the worst possible time. He treats Medeco work the way it should be treated: as a mechanical system with tight tolerances, not a quick cylinder swap. We’re independent, not manufacturer-affiliated, which means our recommendation to re-pin versus replace is driven by what the cylinder actually needs, not what a dealership contract tells us to sell.
We carry genuine Medeco pins, springs, sidebars, and restricted key blanks for anything that touches the high-security integrity of the cylinder. For non-security hardware like strikes and reinforcement plates, we use quality aftermarket components where they make sense. That’s the difference between a locksmith who understands the system and one who just swaps parts.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in North Fair Oaks
Here’s what actually shows up on service calls in North Fair Oaks, tied to the local conditions that cause them:
- Undocumented restricted-key systems. A landlord owns a dozen units across a small apartment court, the key card went missing two turnovers ago, and now the M3 cylinders are being copied informally. The lock still works. The key control is already broken. We rebuild the hierarchy and issue a fresh restricted set.
- Worn Biaxial and early Maxum cylinders. Decades-old Medeco hardware in 1940s-1970s stucco rentals accumulates worn pin stacks and a lazy sidebar. Keys duplicated too many times start to stick or fail to throw. This is a re-pin problem, not a replacement, and we can usually do it on-site.
- Winter deadbolt jamming. North Fair Oaks gets mild, wet winters. The original wood doors swell, the strike plate shifts, and the deadbolt gets blamed for binding. We correct the door alignment and strike position, which is often all the Medeco hardware needed in the first place.
- Rust and grit in exterior cylinders. Exposed Medeco cylinders on shared driveways and converted-garage ADUs pick up rust on the steel pins and springs through the dry summers and wet winters. Smooth rotation degrades, and eventually the plug seizes. We clean, re-pin, and relubricate with the right product for the coastal climate.
- Master-key confusion during tenant turnover. With frequent move-ins and move-outs, a single master key gets copied and passed around informally. No one’s sure who holds what. Rekeying the affected units and cutting a controlled set restores the hierarchy.
Medeco Service in North Fair Oaks: What Local Conditions Mean for Your Equipment
North Fair Oaks is unincorporated, and that changes what Medeco service actually involves here. Many properties on the numbered cross streets off Middlefield Road are managed by out-of-area landlords who hold master key systems across dozens of units and converted-garage ADUs. The problem: they often can’t produce a current key chart. The cylinder works, the keys work, but no one has a reliable record of who holds which restricted blank. So our Medeco work in North Fair Oaks frequently starts by rebuilding an undocumented master-key hierarchy before we can rekey a single unit. In a place like Atherton with newer construction and on-site property management, that Atherton Medeco service documentation exists. Here, it rarely does. We’ve learned to expect it, and we’ve learned to fix it properly.
Medeco Models & Products We Service in North Fair Oaks
We service the Medeco lines you’ll actually find in North Fair Oaks rental stock and owner-occupied homes:
Medeco Maxum residential deadbolt. Medeco M3 and M3 BiLevel high-security cylinders. Medeco Biaxial cylinders, which are still common in older installations. And Medeco KeyMark and KeyMark XT cylinders for properties that need a restricted keyway without the full M3 system.
Our parts approach is specific: genuine Medeco components for pins, springs, sidebars, and restricted blanks; quality aftermarket hardware only where the security function isn’t affected, like strikes and reinforcement plates. We re-pin and rebuild existing cylinders whenever the body is sound, and we tell owners plainly when a worn or undocumented cylinder has reached the point where replacement is the honest call. See our full Medeco sales & service coverage for more on what we stock and repair.
Medeco Service Pricing in North Fair Oaks
Right now in North Fair Oaks, Medeco rekeying and re-pinning typically runs $25 to $75 per cylinder, depending on whether we’re dealing with a six-pin Biaxial, an M3 with sidebar work, or a KeyMark that needs fresh restricted blanks. A complete new Medeco deadbolt installation usually lands between $250 and $450, including labor and the cylinder itself. If we’re rebuilding a master-key hierarchy across multiple units, the cost depends on cylinder count and how much documentation work we’re inheriting.
What a free estimate includes: we assess the cylinders, check the existing key record, and give you a flat per-cylinder price before anyone is dispatched. The number we quote on the phone is the number on the invoice. No call-out surcharge added on arrival. Call (833) 589-8078 for an exact quote, we’ll talk you through what you actually need.
Serving North Fair Oaks, CA — Our Local Coverage Area
We’re based in the North Fair Oaks area and know this community well, and we also provide Emerald Lake Hills Medeco service nearby. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Medeco Locksmith in North Fair Oaks
Can you rekey a Medeco lock in North Fair Oaks without the original key card?
Yes. We rekey Medeco cylinders without the original key card regularly in North Fair Oaks, because that’s the default condition of most rental units here. We verify the cylinder’s current pinning, re-pin it to a fresh restricted key set, and create a new key chart. That’s what rebuilding key control means in practice. Call (833) 589-8078 if you need a cylinder rekeyed and you don’t have the original documentation.
Why does my Medeco deadbolt stick only in winter?
In North Fair Oaks, winter deadbolt sticking is almost always the door and strike, not the Medeco cylinder. The wet season swells the original wood doors, shifts the strike plate, and the bolt binds against the edge of the strike. We correct the alignment and often that’s the entire repair. If the cylinder itself has worn pins from old duplicated keys, we’ll re-pin it at the same visit.
Do you service the older Medeco Biaxial cylinders still on many rental units here?
Yes. We rekey, re-pin, and rebuild Medeco Biaxial cylinders throughout North Fair Oaks. Many of these units were installed in the 1980s and 1990s, and with proper pin stacks and fresh keys they still perform as designed. We recommend replacement only when the cylinder body itself is worn past the point of reliable function.
My landlord manages several units on a shared driveway and I don’t have a clear street address – can you still find the unit?
Yes. We’re familiar with the internal unit numbering on the shared-driveway and converted-garage ADU layouts of North Fair Oaks. When you call, give us the landlord’s unit number and we can locate the door. We’ve opened and rekeyed units this way on the numbered cross streets off Middlefield Road without a visible street address.
Is your Medeco service authorized by Medeco?
No. We’re an independent Medeco service provider, not affiliated with or authorized by Medeco. Our credibility comes from the volume of restricted-keyway and high-security cylinder work we do across North Fair Oaks: re-pinning, rekeying, and rebuilding master-key hierarchies that other shops refuse to touch. Being independent means we have no incentive to push a sale when a re-pin and fresh key control will honestly do the job. Learn more about our North Fair Oaks service area coverage.
Service Areas Near North Fair Oaks
We also serve Medeco clients in nearby cities across the Peninsula and beyond, including Mountain View, Petaluma, Pittsburg, and Inverness. For Medeco service further east, see our Medeco service in San Ramon. North Bay clients can find Medeco service in Novato.
Book Your Medeco Service in North Fair Oaks Today
If you have a Medeco cylinder that needs rekeying, a master key system with no documentation, or a deadbolt that’s been sticking since the rains started, call (833) 589-8078. We’ll give you a straight answer on what it costs and whether same-day service makes sense for your situation.
Written by Roland Vásquez, Owner at Citadel Locksmith, serving North Fair Oaks, San Carlos Medeco service, and the wider Peninsula since the day he first picked up a set of picks in his uncle’s hardware shop at age fourteen. A lock is only as strong as the decision behind it.