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Get your free estimateMedeco Locksmith in San Rafael, CA | Citadel Locksmith
We’re an independent Medeco service provider working throughout San Rafael, and the short answer is this: we rekey, repair, and replace Medeco cylinders and deadbolts across every ZIP in the city, from downtown Victorians to Terra Linda ranchers, and we do it with OEM pin kits and restricted keyways, not workaround parts. What makes our Medeco work different here is that we understand how Marin’s damp air and San Rafael’s split housing stock affect high-security hardware differently than a uniform suburb would. If your Medeco lock is sticking, seizing, or needs a restricted key reissue, call Citadel Locksmith at (833) 589-8078. We handle Medeco sales & service across the county, and we’ll tell you straight whether a repair or replacement makes sense for your door.
Why San Rafael Residents Choose Us for Medeco Service
Medeco cylinders are not beginner locks. The restricted keyways, slider mechanisms, and precision pinning that make them hard to pick also make them unforgiving when a technician treats them like a standard Schlage or Kwikset. Roland Vásquez, our owner, cut his teeth on mechanical fundamentals at the City College of San Francisco locksmithing program and has spent close to three decades diagnosing the kind of seized, worn, or misinstalled high-security cylinders that frustrate generalist shops. We’ve worked Medeco hardware in coastal fog, in oak doors that have moved a quarter inch since 1920, and in bored 1970s slabs where the prep was barely right from day one. That’s the difference. We don’t swap parts and hope. We pin, measure, ream, and adjust until the cylinder throws cleanly and the key turns with one hand. If you live anywhere in San Rafael, that’s the service you want on a lock that exists to keep people out.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in San Rafael
- Seized cylinders on fog-belt exteriors. Medeco’s hardened pins and slider mechanisms have tight tolerances. When Marin humidity settles into a restricted keyway, the internals gum up and keys get stiff, then stuck. We see this most on exterior doors in 94901, where damp air off the bay moves through older wood frames. The fix is a full disassembly, dry PTFE lubrication, and pin reassembly to factory spec, not a squirt of WD-40.
- Medeco Maxum deadbolts dragging after winter rain. In Gerstle Park and other pre-war neighborhoods, original wood doors swell every winter. The door moves, the strike doesn’t, and the Maxum’s hardened bolt drags or refuses to throw fully. We re-align strikes, adjust bolt depth, and re-pin to a fresh restricted key when needed.
- Ghost shear lines from worn or duplicated restricted keys. When a Medeco Original Biaxial key is copied on a non-OEM blank or has worn through years of use, it can produce intermittent no-turn conditions that look like a broken lock. We re-pin to a new restricted key and cut it from genuine Medeco blanks, which eliminates the ghost line issue.
- Retrofits gone wrong in Terra Linda and Lucas Valley. Many 94903 homes were built with standard 1960s knob and deadbolt bores. When someone forces a Medeco high-security cylinder into undersized or shallow door prep, the cylinder protrudes or binds. We correct backset, deepen the prep where needed, and mount the hardware so it sits flush and turns smoothly.
- Mortise-era doors that need adaptation, not a deadbolt swap. Downtown San Rafael Victorians and Craftsman bungalows often still have original mortise locksets with skeleton keys. Upgrading to Medeco means custom mortise cylinder adaptation and careful door prep. We’ve done this work on century-old wood doors without splitting or overboring them, which is exactly the kind of job that goes wrong fast in the wrong hands.
Medeco Service in San Rafael: What Local Conditions Mean for Your Equipment
San Rafael’s housing stock splits about as sharply as any city in Marin. Downtown and Gerstle Park homes from the late 1800s through the 1920s carry mortise locksets and original wood doors that need period-aware work and custom Medeco cylinder adaptation. The post-war tracts in Terra Linda, Lucas Valley, and Peacock Gap use standard bored cylindrical setups that rekey quickly but need extra attention when you’re upgrading to high-security hardware, because the original door prep wasn’t drilled for Medeco’s deeper cylinder profile. If you need Medeco in Sleepy Hollow or nearby, the same prep considerations apply. On top of that, the climate works against exterior hardware year-round. We see more seized and corroded Medeco cylinders in the hillside neighborhoods above downtown than anywhere else, partly because steep driveways and multi-level entries put more locks on exposed garage-side and second-story doors where fog lingers. One technician’s day in San Rafael swings between a mortise lock on a 1918 door and a Maxum deadbolt on a 1965 ranch slider. The torque settings, the pinning, the prep, and the repair strategy all change. A city of uniform subdivisions wouldn’t teach you that. San Rafael did.
Medeco Models & Products We Service in San Rafael
We service the Medeco lines most common in San Rafael homes and small apartment buildings: the Medeco Maxum deadbolt, the M3 and M4 keyway cylinders, the Original (Biaxial) deadbolt, and KeyMark and KeyMark XT cylinders found in light-commercial and some multi-unit settings. We stock genuine Medeco OEM pin kits, restricted keys, and cylinders for fast turnaround in San Rafael. When a system is older and OEM parts are discontinued, we source quality aftermarket components that meet original tolerances, which we’ll tell you plainly before doing the work. We repair Medeco hardware when the cylinder body and keyway are sound. We recommend replacement only when the internal slider mechanism is worn past reliable service, which honest diagnosis catches early.
Medeco Service Pricing in San Rafael
Medeco work isn’t priced like a standard rekey because it isn’t standard work. A restricted-keyway rekey in San Rafael typically runs $25 to $45 per cylinder for labor, with restricted key blanks and pinning material adding another $12 to $28 per key depending on the Medeco line. Repairs like slider lubrication, strike alignment, or cylinder extraction land in the $65 to $150 range. If we’re doing a full mortise-to-Medeco adaptation on a century-old downtown Victorian door, that’s a bigger job, usually $180 to $350 on the door side depending on prep and trim work. Those are honest ranges. What we quote on the phone before dispatch is the price on the invoice: no added arrival fee, no bait figure, no upsell at the door. Call (833) 589-8078 for an exact quote on your Medeco hardware. Estimates are free.
Serving San Rafael, CA — Our Local Coverage Area
We’re based in the San Rafael area and know this community well, including Medeco in San Anselmo. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Medeco Locksmith in San Rafael
Yes, if you own the property or have documented authority over the lock. The restricted key card streamlines the reissue, but we can re-pin to a fresh restricted key and establish new key control records by verifying ownership and physical possession of the lock. This is a common request after a tenant turnover or a lost key in San Rafael. Call (833) 589-8078 and we’ll walk you through what we need to see.
It’s the marine air. Medeco cylinders use hardened pins and side sliders with tight tolerances, and the fog-belt humidity we get in San Rafael, especially near the bay side and in 94901, introduces fine corrosion and grit into the keyway that drier inland climates don’t. We disassemble, clean, and lubricate with dry PTFE, which is the right fix. A quick annual service call handles it. If yours are sticking now, call (833) 589-8078 and we’ll get it smooth again.
Yes. That’s exactly the kind of door we treat with the most care in San Rafael. We recently worked a Medeco Maxum deadbolt on a Craftsman bungalow in the Gerstle Park area where winter rain had swollen the original door and dragged the bolt, and we’ve handled Medeco repair in Fairfax on similar vintage homes. We re-pinned the cylinder to a fresh restricted key, adjusted the strike plate, and lubricated the slider mechanism with dry PTFE, all without touching the door’s structure. If your mortise entry needs adaptation rather than repair, we’ll do it with minimal invasive prep. Call (833) 589-8078 to schedule it.
Yes. We build and maintain master key systems on Medeco KeyMark and standard Medeco M3/M4 cylinders for landlords and property managers across the Canal area and nearby rental stock. Each unit gets a restricted key that only opens that unit, while management keys open everything in the schedule. We also handle Medeco in Santa Venetia and surrounding rental markets with the same system. We re-pin and reissue when tenants turn over, which is steady work in that part of San Rafael. For a scope and flat per-lock price, call (833) 589-8078.
The Medeco Maxum is a higher-security deadbolt built around a hardened, pick-resistant bolt and a more aggressive keyway, while the Medeco Original (Biaxial) is a solid high-security cylinder that’s been around for decades and is easier to retrofit into existing 1960s-era bored doors. For most Terra Linda ranch homes, the Original drops into the standard prep with less modification. The Maxum is a better choice for a door with full, deep prep or a garage-side entry that gets more weather exposure. Call (833) 589-8078 and we’ll tell you which one fits your door without extra fabrication.
Service Areas Near San Rafael
We work throughout San Rafael and into the surrounding Marin and North Bay communities. If you’re in Medeco service in San Mateo territory we can point you to the right team there, and for East Bay locations look to our Medeco service in El Sobrante page. We also field calls from Petaluma, Novato, and Inverness. Our home base is San Rafael service area coverage, and that’s where our response is fastest.
Book Your Medeco Service in San Rafael Today
A lock is only as strong as the decision behind it. If your Medeco hardware needs rekeying, repair, or a proper retrofit on an old San Rafael door, call Citadel Locksmith at (833) 589-8078. We’ll give you a straight quote on the phone and, in most San Rafael neighborhoods, same-day or next-day service.
Written by Roland Vásquez, Owner at Citadel Locksmith, serving San Rafael and Marin County.