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 Corte Madera, CA | Cypress Lock & Key
We provide independent Medeco locksmith service across Corte Madera, from the bayside flats to the hills above Tamal Vista, and also handle Larkspur Medeco service nearby. What makes our Medeco work different here is the salt air. Locks on marsh-facing doors in the 94925 ZIP corrode faster than the same hardware five miles inland, and we’ve built our service around that reality. For Medeco rekeying, repair, or installation in Corte Madera, call (877) 265-4385 and we’ll give you a straight read on what you’re dealing with.
Why Corte Madera Residents Choose Us for Medeco Service
Medeco isn’t a lock you hand to just anyone. The rotating-pin design, the restricted keyways, the tight tolerances – they demand a technician who actually knows the hardware, not someone who saw a YouTube video once. Noel Carver, our owner and lead locksmith, completed a formal locksmithing and security systems program at Fresno City College and has been running calls for close to two decades. He’ll tell you straight: Medeco locks are excellent hardware, but they punish neglect. In Corte Madera, where winter fog leaves exterior hardware dripping every morning, the margin for error shrinks further.
We’re an independent shop, not a manufacturer-authorized dealer. That means we can be honest about what your lock needs without pushing a warranty package you don’t want. We carry genuine Medeco OEM pins, springs, and cylinders for security-critical internal work, and we’ll always tell you whether a cylinder can be rebuilt or needs replacing. Our full Medeco sales & service capability covers everything from a single rekey to a full deadbolt swap on a new construction condo near the Town Center.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in Corte Madera
Here’s what we’re actually seeing on Medeco hardware in Corte Madera right now:
- Seized rotating pins from salt corrosion. The Medeco design uses pins that rotate as well as lift, which is brilliant for security and brutal in a marine environment. Salt air from the bay and nearby marshes works into the keyway and pin chambers, and suddenly your key goes in but won’t turn. We see this most on marsh-facing doors in the flats, especially in the 94925 ZIP. The fix is a full cylinder disassembly, cleaning, marine-grade lubrication, and sometimes replacing worn springs.
- Restricted keyway wear from fog-driven grit. Corte Madera mornings are foggy and often windy. Fine grit gets carried into the keyway, and over months it scores the internal surfaces. You’ll feel it as a key that needs jiggling, or refuses to insert past the first pin. We clean and often re-pin these cylinders with OEM parts.
- Deadbolt binding from seasonal wood movement. A lot of Corte Madera homes are 1950s-1970s ranch and split-level builds with original wood jambs. Damp winters swell the wood, and suddenly the Medeco Maxum deadbolt won’t throw fully. We re-align the strike, adjust the bolt, and sometimes re-route the jamb slightly. It’s a 20-minute job that makes the lock feel new again.
- Keypad fogging and intermittent failure. Medeco electronic and smart lock components don’t love persistent damp. We get calls from townhome and condo owners near Tamal Vista where the keypad lights up but won’t register input, or works only half the time. Some units just need internal cleaning; others need the external module replaced.
- Lost restricted keys. Losing a Medeco key isn’t like losing a Kwikset key. The keyway is restricted, so we verify your authorization via your key control card and cut replacements against the registered code. No card, and we’ll walk you through the verification path and what your options are.
Medeco Service in Corte Madera: What Local Conditions Mean for Your Equipment
Here’s the thing that makes Medeco work in Corte Madera genuinely different from the same service in San Rafael, Mill Valley Medeco service, or Novato: the fog. Corte Madera’s bayside flats sit directly in the path of marsh-generated fog that rolls in off the bay most winter mornings. Exterior locks stay wet for hours. On a standard pin-tumbler lock, that’s an annoyance. On a Medeco, with its rotating-pin mechanism and tight tolerances, that moisture plus the salt in the air from the nearby marshes creates a corrosive environment that attacks the pin chambers faster than you’d expect. We see it on nearly every service call in the 94925 ZIP: cylinders that feel gritty, keys that stick, springs that have lost tension from rust. A homeowner on Casa Buena Drive called us because their Medeco Maxum deadbolt would not turn – the key went in but the cylinder felt like it was filled with sand. We found salt corrosion had seized several rotating pins. We disassembled the cylinder, cleaned and re-lubricated the pin chambers with a marine-grade product, and replaced two worn springs with OEM parts. The lock now operates smoothly, and we set them on an annual maintenance schedule. That’s the kind of service Corte Madera Medeco owners actually need, and it’s not the kind of call you get six miles inland.
Medeco Models & Products We Service in Corte Madera
We work on the full Medeco lineup that shows up in Corte Madera homes and small commercial spaces: the Medeco Maxum deadbolt, Medeco Biaxial cylinders, the original Medeco classic pin-tumbler cylinders, and the M3 and M4 restricted keyway systems. For security-critical internal work – pins, springs, cylinders – we use genuine Medeco OEM parts, because that’s what preserves the restricted-keyway integrity and any warranty standing. For external trim and non-security-critical components, we may recommend quality aftermarket parts that resist salt corrosion better than the factory finish. We keep common Medeco pins and springs stocked in our service vehicles, so most Corte Madera rekeys and repairs happen in a single visit.
Medeco Service Pricing in Corte Madera
Medeco service in Corte Madera typically runs $145 to $285 for a rekey, and $220 to $380 for a deadbolt replacement, depending on the model and condition of your existing hardware. What drives the cost: whether we’re re-keying an existing cylinder or replacing it, whether your lock needs internal cleaning from corrosion (which adds time), and which Medeco line you have. When you call (877) 265-4385, we’ll quote the full price before anyone is dispatched. That’s the price on the invoice – no call-out surcharge added on arrival. Estimates are free, and we’ll tell you honestly whether your cylinder can be rebuilt or should be replaced.
Serving Corte Madera, CA — Our Local Coverage Area
We’re based in the Corte Madera area and know this community well, with coverage extending to Tamalpais Valley Medeco service as well. Use the map below to see our full service coverage — if you’re nearby, we can almost certainly help.
FAQs – Medeco Locksmith in Corte Madera
Because Corte Madera’s winter fog and bay air put moisture and salt into the keyway, and the Medeco rotating-pin design is more sensitive to that than a standard lock. The pins corrode slightly and bind against the cylinder walls. It’s almost always fixable with a proper disassembly, cleaning, and marine-grade lubrication. Call (877) 265-4385 for a quote – this is one of the most common calls we run in Corte Madera.
Yes, in most cases. The key control card makes it faster and simpler, but we can verify ownership and authorization through other means, then re-pin the cylinder to new keys. We’re an independent shop, so we handle a lot of Medeco locks where the card was lost years ago. Expect a verification step before we rekey any restricted keyway.
We recommend an annual cleaning and lubrication with a marine-grade product, ideally before the fog season starts in late fall. Graphite and standard locksmith lubricants don’t hold up against salt air. We offer a maintenance schedule that keeps your Medeco cylinder turning smoothly year-round, and it’s cheaper than an emergency call when the lock seizes at midnight.
Yes. Those units typically have modern Medeco deadbolts and electronic or keypad entries, and we see a steady stream of service calls from that area – mostly keypad fogging issues and deadbolt alignment on the newer hollow-core frames. We service all Corte Madera ZIP codes, including 94925 and 94976, and also provide Medeco repair in Tamalpais-Homestead Valley. Call (877) 265-4385 and describe your lock; we’ll tell you what we’re likely dealing with before we even arrive.
Same-day response is typical in Corte Madera, and emergency lockout calls are a core part of what we do. The exact timing depends on where we are when you call and what’s already on the schedule. Call (877) 265-4385 and we’ll give you a real arrival window, not a vague promise.
Service Areas Near Corte Madera
Our Medeco service extends beyond Corte Madera to the surrounding Marin and Peninsula communities. We handle Medeco work in Corte Madera service area including the flats, the hills, and the Tamal Vista corridor. We also serve Medeco service in Pacheco, Medeco service in Chinatown, plus Mill Valley, Larkspur, and San Mateo. If you’re unsure whether we cover your address, call and ask – if we can’t get to you, we’ll say so directly rather than string you along.
Book Your Medeco Service in Corte Madera Today
If your Medeco lock is sticking, seized, or needs a rekey in Corte Madera, call us at (877) 265-4385. We’ll give you a straight answer on pricing before anyone heads your way, and same-day service is available for urgent calls. Know your hardware, know your options – the rest is just turning a key.
Written by Noel Carver, Owner at Cypress Lock & Key, serving Corte Madera and Marin County.