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Get your free estimateMedeco Locksmith in Berkeley, CA | Cypress Lock & Key
We provide independent Medeco locksmith service across Berkeley, CA, from the flatlands to the Hills, and also offer Medeco service in El Cerrito. Most Berkeley Medeco calls come down to one of two things: a restricted key that can’t be duplicated through a hardware store, or a high-security cylinder retrofitted into a pre-war mortise lock that’s now binding. What makes our work here different is that we’ve spent years pinning and decoding Medeco cylinders on Berkeley’s oldest doors, not just installing new deadbolts on newer construction. Call (877) 265-4385 and we’ll tell you exactly what your Medeco lock needs.
Why Berkeley Residents Choose Us for Medeco Service
Medeco is a different animal than Kwikset or Schlage. The rotating pins and sidebar mechanism demand a locksmith who works with them regularly, not someone who sees one every six months. Our techs carry Medeco pinning kits, restricted key blanks, and the cutting equipment to duplicate high-security keys with the precision those sidebars require. We’re an independent shop, fully familiar with Medeco sales & service across the East Bay, and we stock parts specifically for the Medeco Maxum, Biaxial, and M3 lines. Owner Noel Carver grew up around locks and mechanical work, and he’s been running Medeco service calls in this part of California long enough to know which failures show up on a Berkeley Craftsman door versus a downtown apartment. That local knowledge keeps the job moving faster.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in Berkeley
- Restricted key duplication. Medeco keys use a restricted keyway and a side-pin code that big-box stores can’t cut. We cut restricted Medeco keys on the correct blanks and re-pin cylinders when a homeowner has lost track of who holds copies.
- Salt-air corrosion on west-side doors. Berkeley’s damp marine air near the bay corrodes Medeco deadbolt collars and cylinder faces over time. The interior still turns, but the exterior collar binds and keys start chewing. We disassemble, clean, and re-lubricate before corrosion seizes the cylinder.
- Winter door-swell jamming. Heavy winter rain swells the original wooden doors on Berkeley’s Craftsman and brown-shingle entries. A Medeco deadbolt that worked all summer suddenly won’t seat because the strike has shifted. That’s a door alignment issue wearing a lock’s clothes, and we fix both.
- Medeco cylinders retrofitted into 1920s mortise locks. In the Berkeley Hills and around campus, we see Medeco cylinders that were squeezed into century-old mortise cases years ago. The case shifts through seasonal humidity swings, and the cylinder binds. We rebuild the mortise case, machine an adapter when needed, and re-pin the Medeco cylinder so it turns clean.
- Lost key-control cards. Medeco restricted systems come with an authorization card that controls key duplication. After decades of turnover in Berkeley rentals, those cards are often long gone. We can cut new restricted keys when ownership can be verified through the property records, and we handle the paperwork.
Medeco Service in Berkeley: What Local Conditions Mean for Your Equipment
Here’s the thing a generic Medeco page won’t tell you. Berkeley’s Craftsman and Berkeley-and-Brown bungalows often still run their original mortise locks with skeleton keys. A Medeco high-security upgrade in this city is usually a fit-a-cylinder-into-the-existing-mortise-case job, not a drill-and-bolt deadbolt replacement. That means the locksmith has to understand both the Medeco mechanism and the century-old case it’s going into. On a recent call to the Hills, we worked on a brown-shingle Berkeley-and-Brown home where a Medeco Maxum deadbolt on a swelling entry door had started binding every winter. The cylinder turned but the bolt dragged on a strike that had crept out of line. We reset the strike, eased the door edge, and cleaned the Medeco internals, then cut a pair of restricted keys on the correct blank. The deadbolt throws cleanly now, and the vintage trim stayed untouched. That’s the Berkeley-specific repair pattern: Medeco on the inside, 1920s hardware on the outside, and both have to work together. In the Hills and around the university, original 1920s mortise locks with skeleton keys are the norm, so key cutting here often needs vintage blanks and period hardware knowledge, not a standard modern cylinder swap.
Medeco Models & Products We Service in Berkeley
We work on four Medeco product families regularly across Berkeley: the original high-security deadbolt, the Biaxial cylinder, the M3 high-security cylinder, and the Maxum deadbolt. When a Medeco cylinder is sound, we rebuild and re-pin it rather than push a replacement. When the case or housing is cracked or seized, we tell you straight and quote the swap. For parts, we fit genuine Medeco cylinders, pins, and restricted blanks wherever a correct fit exists. For Berkeley’s vintage mortise bodies, we machine custom cylinders or adapters when an off-the-shelf unit won’t seat. We keep Medeco pinning kits and restricted blanks stocked specifically because Berkeley’s housing stock calls for them so often, and we bring the same expertise to Medeco service in Kensington.
Medeco Service Pricing in Berkeley
Medeco work in Berkeley typically runs $140 to $280 for rekeying a single Medeco cylinder, $25 to $60 per restricted key cut, and $220 to $450 for a full Medeco deadbolt installed into a standard door. Retrofitting a Medeco cylinder into a vintage mortise case runs higher because of the custom fitting work, often $180 to $350 depending on the case condition. Salt-air corrosion repair or door-swell realignment usually lands in the $95 to $190 range. Every job gets a firm quote over the phone before we dispatch anyone, and that’s the price on the invoice. No arrival surcharges. Call (877) 265-4385 for an exact quote on your Berkeley Medeco lock; estimates are free.
Serving Berkeley, CA — Our Local Coverage Area
We’re based in the Berkeley area and know this community well, including Medeco repair in Emeryville. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Medeco Locksmith in Berkeley
Yes, we can cut restricted Medeco keys when you can demonstrate ownership of the locks, such as a matching ID and the lock itself on site. Restricted Medeco keys require the correct blank and the side-pin code, both of which we carry. Call (877) 265-4385 and we’ll walk you through what we need to verify.
In most cases, yes. We fit a Medeco high-security cylinder into the existing mortise case, machine an adapter if needed, and keep the original trim intact. That’s the standard Medeco upgrade path for Berkeley’s pre-1930s housing.
Berkeley’s winter rain swells the original wooden doors on Craftsman and brown-shingle entries, which pushes the strike out of alignment with the Medeco bolt. The cylinder isn’t the problem; the door geometry is. We reset the strike, ease the door edge, and clean the cylinder so it throws smoothly year round.
Yes, if they’re left unserviced. Persistent damp marine air corrodes exposed Medeco collars and cylinder faces while the interior still works, so the first sign is usually a stiff thumbturn. We clean and re-lubricate the internals before corrosion spreads to the pin chambers. If you’re in West Berkeley or near the bay, an annual clean-up is worth it.
Yes, we can rekey a Medeco restricted system even without the original key-control card. We verify ownership through property records or the lock itself, then re-pin the cylinder and cut new restricted keys under our own card. Call (877) 265-4385 for a quote specific to your Berkeley property.
Service Areas Near Berkeley
Beyond Berkeley, we run Medeco service calls in Chinatown, Mill Valley, Martinez, San Mateo, Larkspur, and Hillsborough. If your building is in one of those areas and you need Medeco rekeying or restricted key duplication, we’ll schedule it. We also cover Berkeley service area zip codes 94702, 94703, 94704, and 94705. For neighbors just north, see Medeco service in Albany, and for the east side, Medeco service in Orinda.
Book Your Medeco Service in Berkeley Today
If your Medeco lock is binding, a restricted key is lost, or you’re ready to upgrade a vintage Berkeley mortise lock to high-security, call Cypress Lock & Key at (877) 265-4385 for Car Key Replacement – Berkeley and more. We quote the full price on the phone before anyone is dispatched, and we run same-day Medeco service across Berkeley when the schedule allows.
Written by Noel Carver, Owner at Cypress Lock & Key, serving Berkeley and the East Bay. Know your hardware, know your options – the rest is just turning a key.