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Get your free estimateMedeco Locksmith in Walnut Creek, CA | Cypress Lock & Key
We’re an independent locksmith shop servicing Medeco hardware across Walnut Creek, and the jobs here split in a way we don’t see anywhere else. Half our Medeco work happens on newer downtown condos with modern prep. The other half runs through Rossmoor’s 1960s and 70s co-ops, where a high-security Medeco cylinder often sits on top of a mortise lock body that’s half a century old. That mix shapes how we stock parts and how we approach every call. For Medeco service in Walnut Creek, call (877) 265-4385.
Why Walnut Creek Residents Choose Us for Medeco Service
Medeco isn’t a lock you hand to someone who’s only ever repinned Schlage and Kwikset. The rotating pins, the restricted keyways, the sidebar design. They’re a different animal, and we work on them weekly. Noel Carver, our owner and lead locksmith, has run calls across this part of the East Bay for nearly two decades and completed his locksmithing and security systems training at Fresno City College before that. He grew up around Key, CA, where his grandfather’s machinist thinking rubbed off, and we’ve since expanded to offer Acalanes Ridge Medeco service as well. Know your hardware, know your options, the rest is just turning a key. That’s the approach we bring to every Medeco cylinder we open, repair, or rekey in Walnut Creek.
We stock the pinning kits and restricted blanks for the Medeco lines Walnut Creek owners actually carry, so we’re not waiting on a distributor when your key snaps or your cylinder binds. And because we’re local to the 94595 through 94598 ZIPs, we’re not forty minutes away when a Rossmoor resident can’t get their door to latch before a caregiver shift ends — same for anyone needing Medeco in Contra Costa Centre. You call, we come, we read the hardware, we fix it. No upsell pressure.
We’re independent. That’s worth saying plainly. We are not authorized, sponsored, or endorsed by Medeco. We chose their hardware as our high-security specialty because the engineering is honest and the key control is real. You get the same Medeco sales & service expertise either way, just without the manufacturer’s call center between you and the person holding a screwdriver.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in Walnut Creek
Here’s what actually fails on Medeco hardware in this city, and why it fails here specifically.
- Restricted keyway jammed by East Bay dust and wildfire ash. Walnut Creek’s hot, dry summers kick up fine dust, and wildfire season adds ash to the air. Combine that with Medeco’s tight keyway tolerances and you get keys that won’t insert fully. The cylinder binds at the face before the key even reaches the pins. We clean the keyway, flush the sidebar channel, and get the key seating again without replacing the cylinder.
- Worn rotating-pin chambers in older Biaxial cylinders. These cylinders depend on pins that rotate to a specific angle. After enough years, the chambers wear and the pins no longer index cleanly. The key sticks, or it spins without catching the sidebar and throwing the bolt. We see this most on 1990s townhomes along Ygnacio Valley Road where the original Medeco hardware has outlasted two or three sets of door hardware around it.
- Strike misalignment on settled 1960s and 70s doors. Rossmoor’s co-op doors and the ranch homes across 94596, 94597, and 94598 have jambs that have settled over fifty-plus years. The Medeco bolt drags against the strike plate. The cylinder’s fine. The door’s fine. The geometry between them isn’t. We realign or replace the strike and add a reinforcement plate so the bolt throws clean.
- Lost restricted-key cards after estate sales or caregiver turnover. This is a Rossmoor constant. The original owner had the key control card. The estate sale happened. The card went into a box nobody can find. Now there’s no way to order replacement restricted keys. We decode the cylinder, establish new key control, and cut fresh keys on the spot.
- Original mortise lock body failing behind a newer Medeco cylinder. You don’t see this in newer downtown condos. You see it constantly at Rossmoor. The Medeco cylinder is modern, the mortise case underneath is not. The cylinder turns, but the bolt won’t retract because the mortise case internals are corroded or a spring has snapped. This repair means opening the mortise body, not just repinning the cylinder.
Medeco Service in Walnut Creek: What Local Conditions Mean for Your Equipment
The defining reality of Medeco work in Walnut Creek is the split between the security on top and the hardware underneath. At Rossmoor, thousands of units went up in the 1960s and 70s. Many still carry the original mortise lock body behind a later Medeco cylinder. So a Medeco rekey there often starts with freeing a corroded mortise case, not just repinning a high-security cylinder. That’s a Rossmoor-specific job. The seven-story condos downtown or the 1990s townhomes near Ygnacio Valley Road don’t have it, because they were built for modern deadbolts from day one, unlike homes calling for Medeco repair in Waldon. If you live in 94595 and your Medeco key turns but the bolt won’t pull back, the cylinder is probably not your problem. The fifty-year-old mortise body below it is. We stock mortise case springs, tailpieces, and cam parts precisely because this is a Walnut Creek pattern, not an occasional one-off.
A recent call put it in focus. A Rossmoor resident in 94595 had a Medeco Maxum deadbolt that stopped turning smoothly. Behind it sat the original 1970s mortise lock body. We cleaned and lubricated the mortise case, repinned the Medeco cylinder to a new restricted key, and added a reinforcement plate where the strike had worn into the soft original jamb. She left with two keys and a door that threw cleanly for the first time in years.
Medeco Models & Products We Service in Walnut Creek
We service the four Medeco lines Walnut Creek owners actually have: the Medeco Maxum deadbolt, the Medeco Biaxial cylinder, the Medeco M3 with its patented restricted keyway, and the original classic Medeco cylinder still found on a surprising number of ranch homes in 94596 and 94597, plus those needing Medeco in Saranap. For any warranty-sensitive or high-security cylinder, we use genuine Medeco OEM pins, springs, and restricted key blanks. For non-critical hardware like strike plates and reinforcement plates, a quality aftermarket part does the job without inflating the invoice. If a Medeco cylinder can be cleaned, repinned, and restored to smooth operation, we rebuild it. Replacement is for cracked housings or keys lost with no control card and no path back to a working key.
Medeco Service Pricing in Walnut Creek
Medeco work in Walnut Creek is priced on a service-call-plus-labor model, not a number pulled from the air. A standard Medeco rekey runs between $95 and $180 depending on how many cylinders are involved. If you need a new restricted key cut, add $15 to $35 per key. A full Medeco Maxum replacement, including hardware and installation, lands between $250 and $400. Restoring a Rossmoor mortise body behind a Medeco cylinder adds $60 to $120 in labor depending on what’s seized in the case. The full price is quoted on the phone before anyone is dispatched, and that quote is the price on the invoice. No call-out surcharge appears when we arrive. For an exact number on your lock, call (877) 265-4385 and we’ll talk it through free.
Serving Walnut Creek, CA — Our Local Coverage Area
We’re based in the Walnut Creek 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 Walnut Creek
Yes. We decode the existing cylinder to establish the current key bitting, repin it to a new restricted key combination, and issue new keys. You lose nothing in security. The old keys stop working the moment we finish. Call (877) 265-4385 to schedule a Rossmoor rekey.
Usually neither. In most cases the strike plate has shifted or the door has settled, so the bolt meets the plate edge instead of sliding behind it. We check the bolt path first, realign or replace the strike, and only then look at the cylinder. It’s a faster and cheaper fix than replacing Medeco hardware. Call us and we’ll diagnose it on site.
We stock Medeco restricted blanks for the Biaxial, M3, and Maxum lines. We cut restricted keys in our Walker Creek shop and bring them to the job. You’re not waiting on a manufacturer order, and you’re not paying dealer markup.
We can. A Medeco master key system gives you one key that opens everything, caregiver keys that open only designated units, and resident keys that don’t cross over. We set these up for Rossmoor family trusts and property managers throughout 94595. Tell us how many doors and who needs what, and we’ll design the hierarchy before cutting a single key.
Only if you’re also reinforcing the door. A high-security Medeco cylinder on a hollow-core door with a builder-grade strike is a strong lock on a weak door. We’ll install it, but we’ll also recommend a reinforcement plate so the bolt actually holds against a kick. The hardware deserves a door that backs it up.
Service Areas Near Walnut Creek
Cypress Lock & Key covers more than Walnut Creek itself. We run Medeco service to Martinez, San Mateo, Larkspur, Mill Valley, Hillsborough, and the surrounding East Bay. If you’re nearby and your Medeco hardware needs attention, chances are we’re already in the area. See our Walnut Creek service area page, Medeco service in Tara Hills, or Medeco service in Alamo for details.
Book Your Medeco Service in Walnut Creek Today
Need a Medeco cylinder rekeyed, a restricted key cut, or a half-century-old mortise body freed? Call (877) 265-4385 for a free estimate and same-day service in most Walnut Creek neighborhoods. We’ll quote the full price before we dispatch, and that’s the number on your invoice.
Written by Noel Carver, Owner at Cypress Lock & Key, serving Walnut Creek since 2006.