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 Half Moon Bay, CA | Cypress Lock & Key
We provide independent Medeco locksmith service across Half Moon Bay, from rekeying Biaxial deadbolts to cutting restricted keys for M3 and KeyMark cylinders. The thing that sets our Medeco work here apart: we understand how coastal fog and salt air attack these locks, and we stock the OEM parts and marine-grade lubricants needed to actually fix them. Call (877) 265-4385 for same-day Medeco service anywhere in the 94019 ZIP.
Why Half Moon Bay Residents Choose Us for Medeco Service
Medeco is not a lock you learn on the fly. These are high-security cylinders with sidebars, rotating pins, and restricted keyways that punish guesswork. Our techs work on Medeco hardware constantly across Half Moon Bay’s older coastal homes and weekend rentals, plus nearby El Granada Medeco service calls, so we know the failure patterns before we arrive. Noel Carver, our lead locksmith, completed his locksmithing and security systems training at Fresno City College and has been running calls for nearly two decades. He keeps us grounded in one rule: know the hardware, know the options. On a Maxum deadbolt seized with salt corrosion, that means knowing whether to re-pin and lube or replace the cylinder outright.
We’re an independent shop, not affiliated with or authorized by Medeco, so our only loyalty is to getting your lock working. That independence means we can honestly tell you when a $15 re-pin beats a $300 replacement. We also carry genuine Medeco OEM cylinders, pins, springs, and restricted key blanks, because aftermarket parts don’t hold the tolerances these locks need. If you call us for Medeco work in Half Moon Bay or need Medeco in Moss Beach, you get a technician who can follow the logic of the lock, not just swap parts.
For the full scope of what we cover on these locks, see Medeco sales & service.
Styles & brands we work with
Common Medeco Locksmith Problems We Solve in Half Moon Bay
- Seized deadbolts on the ocean side of the house. Salt air and fog work their way into Maxum and Biaxial deadbolts, corroding the rotating pin tumblers and sidebar until the key grinds or won’t turn at all. Homes west of Highway 1 in Half Moon Bay see this constantly.
- Gummed-up restricted keyways. Fog-borne grit mixes with dried lubricant and jams the wafers and springs in M3 and KeyMark cylinders. Keys stick, pull hard, or refuse to seat fully. We clean and relubricate with marine-grade product, then test with the owner’s restricted key.
- Worn cams and thumbturns on mid-century mortise locks. Many older cottages in Half Moon Bay still run original mortise bodies with Medeco cylinders installed later. The cam wears, the thumbturn slops, and the M3 cylinder turns loosely or fails to throw the bolt. We rebuild or replace the cylinder assembly and adjust the mortise body.
- Lost restricted keys on weekend rentals. Half Moon Bay has a steady flow of short-term renters in second homes and vacation properties. When a KeyMark or M3 key goes missing, owners get locked out because those blanks can’t be duplicated at a big-box key machine. We cut replacement keys on-site from the owner’s card or rekey the cylinder entirely.
- Key turns but bolt won’t throw. Corrosion inside the cylinder head can let the sidebar misalign. The plug rotates, but the tailpiece doesn’t engage the bolt. We see this on coastal-facing deadbolts that have gone a season or two without lubrication. The fix is usually a full disassembly, clean, and rebuild with OEM parts.
Medeco Service in Half Moon Bay: What Local Conditions Mean for Your Equipment
Because so much of Half Moon Bay’s housing sits west of Highway 1 in the direct fog belt, we see a split that generic Medeco pages never mention: an ocean-facing Medeco deadbolt often corrodes and seizes while the inland-facing lock on the very same door still turns freely. The homeowner assumes the whole lock has failed, but it hasn’t. Only the cylinder exposed to the prevailing salt spray and fog has seized. We check for this split on every service call in Half Moon Bay and on any Montara Medeco service visit. If the inland side still works and the ocean side doesn’t, the fix is usually a re-pin and a proper marine-grade lubrication, not a full replacement. On a mid-century cottage off the coast side of Highway 1, our tech found the ocean-facing Medeco Maxum deadbolt completely seized, the key wouldn’t enter past the pins, while the inland-facing lock turned smoothly. We pulled the cylinder, cleared salt and corrosion from the sidebar and pin tumblers, re-pinned it to the homeowner’s existing restricted key, and relubed with marine-grade grease. Then we advised swapping the exterior hardware to stainless to slow the next round. That’s the kind of judgment you need for Medeco work in this climate.
Medeco Models & Products We Service in Half Moon Bay
We service the Medeco lines most common in Half Moon Bay homes and small businesses: the Maxum deadbolt, Biaxial and Biaxial Plus cylinders, M3 and M4 high-security cylinders, and KeyMark and KeyMark XT. We keep genuine Medeco OEM cylinders, pins, springs, and restricted key blanks in stock for fast turnaround. Aftermarket parts are cheaper but they don’t hold the tolerances these high-security mechanisms require, so we don’t install them. When a cylinder comes through that’s been running on aftermarket guts, we can usually tell within the first minute. If you need rekeying done right, this is the page to read: Half Moon Bay service area.
Medeco Service Pricing in Half Moon Bay
Medeco service in Half Moon Bay typically runs between $180 and $340 for a full cylinder rebuild and rekey, depending on whether we’re cleaning corrosion or replacing internal components. A complete Medeco deadbolt replacement usually lands higher, between $250 and $450 installed, and that includes the new cylinder, new restricted keys, and the labor to fit everything properly. Simple rekeys on healthy Medeco cylinders run $85 to $130, though cylinders that need a full disassembly and marine-grade relube will push closer to $150 to $220. A service call to diagnose or repair a restricted-key failure is $95 to $220, and the parts quote comes from what we actually find once the cylinder is open. That spread exists because Half Moon Bay’s salt air damages some locks past the point of a clean re-pin. Noel and the team quote the full price on the phone before anyone is dispatched, and that’s the price on the invoice. Call (877) 265-4385 for an exact quote, estimates are free.
Serving Half Moon Bay, CA — Our Local Coverage Area
We’re based in the Half Moon Bay area and know this community well, including Medeco in Hillsborough. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Medeco Locksmith in Half Moon Bay
The fog and salt spray that roll in off the Pacific hit the ocean-facing hardware directly, corroding the rotating pins and sidebar inside the cylinder. The inland-facing lock on the same door sees far less exposure, so it keeps working. We check for this split on every Medeco call in Half Moon Bay, and the fix is usually a re-pin plus marine-grade lubrication. Call (877) 265-4385 and we’ll pull the cylinder and tell you exactly what it needs.
Yes, if you have the owner’s key card or an existing working key, we can cut replacements on-site using genuine Medeco OEM blanks. Without a card or working key, we rekey the cylinder and cut new keys to match. Big-box machines can’t duplicate these restricted blanks, which is exactly why Medeco owners end up calling us. Call (877) 265-4385 and we’ll sort out the fastest option.
Yes, we run emergency Medeco lockout calls in Half Moon Bay, including nights and weekends when guests get stranded. Restricted-key locks on rentals fail in predictable ways: lost keys, corroded cylinders, or someone forcing the wrong key into the keyway. We send a tech who knows Medeco hardware and carries the OEM parts to fix it on the spot. Call (877) 265-4385 and tell us the address; we’ll get someone moving.
If the cylinder body is intact and only the pins or sidebar are corroded, a re-pin and marine-grade relube will bring it back for far less than a replacement. If the cylinder walls show heavy pitting or the keyway is compromised, replacement makes more sense. This trade-off is precisely what we explain on the phone before you spend a dollar. Call (877) 265-4385 for a straight read on your cylinder.
Yes, we service mortise bodies that were retrofitted with Medeco M3 or Biaxial cylinders. The common failure on mid-century cottages in Half Moon Bay is cam wear inside the mortise body, where the cylinder turns but the bolt won’t throw. We rebuild the cylinder assembly, replace worn cams and springs, and adjust the mortise body to match. If the mortise itself is too far gone, we’ll tell you and recommend a replacement lock that keeps your Medeco cylinder. Call (877) 265-4385 to schedule a look.
Service Areas Near Half Moon Bay
Most of our Medeco calls come from Half Moon Bay proper and the surrounding coastal communities. We also serve San Mateo, Hillsborough, Mill Valley, Larkspur, and as far north as Martinez. For Medeco work in the communities across the bay, see Medeco service in Black Point-Green Point or Medeco service in American Canyon. If you’re not sure whether we cover your street, call us and we’ll tell you straight.
Book Your Medeco Service in Half Moon Bay Today
If your Medeco lock is seized, refusing its key, or simply due for a rekey, call (877) 265-4385. We’ll quote the full price on the phone before anyone is dispatched. Same-day service is available across Half Moon Bay, and the price on the invoice is the price we quoted.
Written by Noel Carver, Owner at Cypress Lock & Key, serving Half Moon Bay since 2006.