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Get your free estimateMedeco Locksmith in Lafayette, CA | Citadel Locksmith
We provide independent Medeco locksmith service throughout Lafayette, CA (94549), and our work here is shaped by one local reality: the 1960s and 70s ranchers and split-levels in the oak-studded hills came with solid-core doors and original high-security cylinders that have now weathered five decades of Diablo Valley sun. That means most Medeco calls in Lafayette are rekeys, cylinder rebuilds, and deadbolt conversions on doors that need alignment work too, not just new keys. Roland Vásquez and the crew at Citadel Locksmith handle the full spectrum of Medeco hardware, from legacy Biaxial cylinders to current M3 and Maxum platforms. Call (833) 589-8078 for a free estimate.
Why Lafayette Residents Choose Us for Medeco Service
Medeco is not a brand every locksmith stocks parts for. The restricted keyways, the sidebar mechanism, the specific pin kits: most vans carry Kwikset and Schlage and call it a day. We carry Medeco pin kits, cylinders, and restricted key blanks because Lafayette’s older housing stock—and nearby communities needing Medeco service in Acalanes Ridge—keep throwing Medeco hardware at us. Homeowners here bought these locks decades ago for a reason. They wanted pick resistance and key control before those were buzzwords. Keeping that hardware functional is a discipline, not a side gig.
Roland Vásquez learned high-security cylinders the slow way: hands on, in the field, across the better part of three decades. He grew up in San Francisco’s Excelsior District, and his uncle ran a small hardware shop near Mission Street where a fourteen-year-old first learned what a sidebar actually does inside a Medeco cylinder. That mechanical foundation still guides how we approach every Lafayette job. We diagnose before we replace. We re-pin when the body is sound. We tell you straight when a cylinder is pitted beyond reliable function.
We are an independent Medeco service provider, not an authorized dealer. Our credibility comes from working on this hardware daily in Lafayette’s ranch and split-level doors, not from any manufacturer endorsement. For full details on Medeco sales & service, see our dedicated brand page.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in Lafayette
- Gritty, binding key plugs from UV and heat cycling. On south- and west-facing exterior doors in Lafayette, summer sun bakes Medeco cylinders until the internal lubricant breaks down. The plug feels gritty, keys bind, and homeowners assume the cylinder is failing. Usually it needs a proper disassembly, cleaning, and re-lubrication with a dry lubricant, not graphite and not WD-40.
- Deadbolts that bind every winter when the door swells. Lafayette’s rainy season is mild by most standards, but it is enough to swell a 50-year-old solid-core door. The Medeco bolt drags against the strike, and the cylinder gets blamed for what is really a frame alignment problem. We true the strike and jamb, then test the bolt throw so the lock works year-round.
- Legacy single-cylinder Medeco deadbolts with no interior thumb-turn. On the hillside streets off Happy Valley Road, many original 1960s doors still have a keyed-inside setup. A family member gets locked in, and suddenly that old high-security deadbolt feels like a hazard. We convert these to a thumb-turn interior while keeping the restricted keyway on the exterior.
- Worn keys for restricted keyways that cannot be casually copied. Decades of use wear down Medeco keys, and because the keyway is restricted, you cannot just stop at a hardware store. We cut and code replacement keys from Medeco blanks so your system stays intact and controlled.
- Pitted brass cylinders on original installations. After 30 or 40 years of coastal fog off the Diablo Valley and direct sun, the brass on an exterior Medeco cylinder can pit. The pins still work, but the plug feels rough and new keys struggle. We evaluate whether re-pinning and polishing restores function or whether replacement is the honest answer.
Medeco Service in Lafayette: What Local Conditions Mean for Your Equipment
The defining feature of Lafayette locksmith work is the housing stock itself. These are not new construction with modern pre-hung doors and adjustable thresholds. Most homes are 1960s and 70s ranchers and split-levels with solid-core wood entry doors, original strike plates that are often oversized or out-of-square, and Kwikset, Schlage, or Medeco locksets that have been through every summer heatwave and winter rain since Lyndon Johnson was in office. On the hillside streets off Happy Valley Road, many original doors still have a single-cylinder deadbolt with no interior thumb-turn. Lafayette homeowners frequently ask us to convert these to a keyed-inside or double-cylinder setup after a family member gets locked inside. That is a common Lafayette upgrade, and it is one we do on Medeco hardware regularly—along with Medeco service in Contra Costa Centre—because the restricted keyway needs to stay intact on the exterior side while the interior gets a thumb-turn. A generic Medeco page will not tell you that. A generic Lafayette page will not tell you that. This is what happens when high-security hardware meets a specific local door stock.
On a Happy Valley Road hillside rancher, our crew serviced a 1960s solid-core entry door fitted with a legacy Medeco high-security single-cylinder deadbolt that had no thumb-turn inside and bound hard against a worn, out-of-square strike plate every winter. We re-pinned the Medeco cylinder, freed and lubricated the plug, then trued the strike and jamb so the bolt threw cleanly. We installed an interior thumb-turn while keeping the restricted keyway on the exterior. The homeowner regained key control and the door stopped sticking. That kind of job is routine in Lafayette and Medeco in Waldon, and it is the reason we stock Medeco-specific parts locally rather than ordering everything from a warehouse.
Medeco Models & Products We Service in Lafayette
Our technicians work on the full Medeco lineup found in Lafayette homes: the Medeco Maxum deadbolt, the current M3 high-security cylinder, the Biaxial cylinder still on many legacy installations, and the original/classic high-security cylinder that started appearing on Lafayette doors in the 1970s. We use genuine Medeco cylinders, pins, and restricted key blanks for high-security work. For non-security components like strikes and reinforcement plates, quality aftermarket hardware is appropriate and keeps costs reasonable. On older cylinders, we re-pin and lubricate when the body and sidebar are sound. When the plug or pins are pitted beyond reliable function, we recommend replacement and explain why. We stock what Lafayette doors—and those needing Medeco service in Saranap—actually need, so turnaround on common Medeco repairs is same-day in most cases.
Medeco Service Pricing in Lafayette
Medeco work in Lafayette typically falls into predictable ranges. A cylinder rekey runs $25-$45 per cylinder, while a service call including the trip charge lands around $65-$95. Replacing a Medeco cylinder costs $85-$160, and a full high-security deadbolt installation (including the lock) runs $180-$340. Deadbolt conversions that add an interior thumb-turn or keyed-inside function fall between $120-$280 depending on the hardware and door condition. What actually drives your cost is the age and condition of the existing hardware, whether we are re-pinning or replacing, and whether the door needs alignment work at the same time. Our Lafayette service area coverage means no inflated trip fees for local calls. Call (833) 589-8078 and we will quote the full price on the phone before anyone is dispatched. That quote is the price on the invoice, with no surcharge added on arrival.
Serving Lafayette, CA — Our Local Coverage Area
We’re based in the Lafayette 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 Lafayette
Can you service a legacy Medeco single-cylinder deadbolt on a 1960s Lafayette door that has no thumb-turn inside?
Yes. We convert these regularly in Lafayette, especially on the hillside streets off Happy Valley Road. We keep the restricted Medeco keyway on the exterior so your key control stays intact, and we install an interior thumb-turn so no one gets locked inside again. Call (833) 589-8078 to schedule a conversion.
Will a Medeco rekey fix a deadbolt that binds every winter when the wood door swells?
Not by itself. A rekey changes the pins and keys, but binding is almost always a frame or strike issue on Lafayette’s solid-core doors. We rekey the cylinder and true the strike and jamb in the same visit, which fixes both the key control and the sticking. Get an exact quote at (833) 589-8078.
Do you carry restricted Medeco key blanks for older Biaxial cylinders still on Lafayette homes?
Yes. We stock Medeco Biaxial key blanks and pin kits specifically because so many Lafayette ranchers and split-levels still run legacy Biaxial hardware. We can cut and code replacement keys on the spot rather than making you wait.
Can you match a new Medeco cylinder on a front door to an existing Medeco lock on a garage or side gate?
Yes. We key new Medeco cylinders to match your existing system so one key works across the doors you choose. This is common in Lafayette when homeowners upgrade a sun-damaged front cylinder but want to keep their side gate and garage on the same restricted keyway.
Is it worth replacing a 30-year-old Medeco cylinder on a sun-exposed Lafayette door or just re-pinning it?
It depends on the condition of the plug and pins. If the body and sidebar are sound, re-pinning and lubricating restores function for a fraction of replacement cost. If the brass is pitted from decades of Diablo Valley sun and coastal fog, replacement is the honest fix. We will show you the cylinder and explain what we are seeing. Call (833) 589-8078 for a free evaluation.
Service Areas Near Lafayette
Our Medeco service area extends from Medeco service in Hercules across the East Bay to Medeco service in Cherryland, and we regularly run calls into Mountain View, Petaluma, Pittsburg, Loyola, and Temelec. If you are in Lafayette or a neighboring community, our local stock of Medeco parts means less waiting when your key or cylinder needs attention.
Book Your Medeco Service in Lafayette Today
A lock is only as strong as the decision behind it. If your Lafayette home still runs a 1960s Medeco deadbolt, or you have been fighting a cylinder that binds in winter and bakes in summer, call (833) 589-8078 today. We quote the full price on the phone before dispatch, and most Medeco rekeys and cylinder repairs in Lafayette are completed same-day.
Written by Roland Vásquez, Owner & Master Locksmith at Citadel Locksmith, serving Lafayette and the surrounding East Bay communities.