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Get your free estimateMedeco Locksmith in Oakley, CA | Cypress Lock & Key
We provide independent Medeco cylinder service across Oakley, from rekeying restricted M3 and Maxum locks to decoding Biaxial deadbolts that have gone gritty from delta dust. The thing that makes our Medeco work different here is knowing what 30 years of Contra Costa heat and tract-home turnover does to high-security hardware. Call (877) 265-4385 and we’ll give you a straight read on the phone before anyone rolls a truck.
Why Oakley Residents Choose Us for Medeco Service
Most locksmiths in this part of the East Bay can cut a Kwikset key. Far fewer can decode a restricted Medeco M3 biaxial cylinder, pull the sidebar, and rebuild it with genuine pins and springs. Our bench has serviced Medeco hardware for years: Maxum, Biaxial, Biaxial-Plus, M3, and the older classic pin-tumbler cylinders still found on original 1970s and 80s ranch homes near downtown Oakley, just as we offer Medeco service in Antioch. Owner Noel Carver completed his locksmithing and security systems training at Fresno City College and has spent nearly two decades running calls in the San Joaquin Valley and the East Contra Costa corridor. You won’t get an up-sell speech when a simple sidebar refresh fixes your lock. You’ll get the work done, the key turning smooth, and no pressure to replace hardware that still has life in it.
We also stock genuine Medeco OEM cylinders and restricted blanks in our van, so an Oakley call doesn’t mean waiting a week for parts. Short version: Medeco sales & service is part of the core lineup here at Cypress Lock & Key, and we’re one of the only shops in the area that lists it up front instead of as an afterthought.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in Oakley
- Gritty, sticking keys on older Biaxial cylinders. After years of heat and dust exposure on an exterior door, the rotating pins and sidebar wear just enough that the key feels like it’s grinding through sand. It starts out as a nuisance, then one day the key won’t complete the turn. This is a service issue, not a reason to replace the whole lock.
- Dust-packed exterior keyways. Oakley sits in the East Contra Costa delta, where hot, dry summers blow fine dust into everything. Medeco cylinders with their tighter tolerances pack up faster than a standard Schlage. We clean and re-lubricate the sidebar, then test under load.
- Restricted keyway issues after a home purchase. A new owner in an Oakley tract home inherits M3 or Maxum cylinders and can’t get spare keys cut at the hardware store. The previous owner’s keys still exist, legally cut on a restricted blank. Rekeying is the only way to put those keys out of circulation.
- West-facing door heat damage. Afternoon delta sun bakes exterior Medeco hardware, fading finishes and loosening cylinder collars. By itself that’s cosmetic, but a loose collar accelerates internal wear. We address both at once when we service a cylinder.
- Deadbolt drag from a sagging door or settling jamb. The Medeco cylinder is arguably the best part of the lock. If the bolt drags against the strike plate, the key won’t fully rotate, and people assume the cylinder failed. Often the fix is adjusting the jamb or shimming the hinge, not replacing the Medeco.
Medeco Service in Oakley: What Local Conditions Mean for Your Equipment
Oakley is a fast-growing East Contra Costa suburb where most of the housing stock was built from the 1980s through the 2000s. That means tract homes with builder-grade Schlage and Kwikset deadbolts on the front and back doors, not antique mortise locks that need museum-grade care. The older single-story ranches near the downtown core still carry original 1970s and early 80s hardware, some of which never saw an upgrade. Meanwhile, the newer two-story subdivisions along the Highway 4 corridor frequently came with builder-installed smart locks and matching keyed sets, similar to what we see when providing Medeco repair in Brentwood. That’s a very specific Oakley situation: on one door you have an electronic deadbolt that needs its codes managed, and on the other you have a bypassable Kwikset that should have been replaced ten years ago. When we retrofit one of these homes to Medeco, the job is rarely just one cylinder. It’s syncing the smart lock to the new household, resolving the restricted keyway situation from the previous owner’s M3 or Maxum, and putting a high-security Medeco deadbolt on the door that still has builder junk on it. In Brentwood, a retrofit might mean a single lock on a newer construction. In Oakley, the mix of housing ages means you’re more likely to find a split system in the same house. That’s the difference.
Medeco Models & Products We Service in Oakley
We service the full Medeco residential and light-commercial range you’ll find on Oakley doors today. The Maxum deadbolt is the current flagship high-security residential line, with a matching keyed knob available for secondary entries. The Biaxial and Biaxial-Plus cylinders are the workhorses of the 1990s and 2000s; older Oakley ranch homes often still carry them. The M3 line is the locksmith-restricted keyway design that blocks most aftermarket duplication. And the original classic pin-tumbler Medeco cylinders show up on older commercial storefronts and some early 80s homes. We use genuine Medeco OEM cylinders, sidebar springs, pins, and restricted key blanks. Cheap aftermarket “Medeco-compatible” cylinders will take the key, but they defeat the purpose of the high-security patent keyway. So we don’t use them.
Medeco Service Pricing in Oakley
Here is what you can expect to pay for Medeco work in Oakley:
- Rekey a Medeco cylinder (your existing hardware): $45 – $90 per cylinder, assuming keys cut
- Decode and cut a replacement key for an existing Medeco: $15 – $35 per key, restricted blanks extra
- New Medeco Maxum deadbolt installed (standard door prep): $180 – $340 depending on finish and cylinder configuration
- Retrofit an existing drilled door to Medeco Maxum: Add $75 – $125 for prep work if the door was originally builder-drilled for a different brand
- Sidebar repair and internal lubrication on a Biaxial or M3: $35 – $75 per cylinder
Each of these is a range because the work differs. A door with a sagging jamb and a fresh prep hole costs more than a simple cylinder swap. When you call, we’ll tell you the price on the phone before anyone is dispatched, and that is the price on the invoice. No service-call surcharge tagged on after the fact. Call (877) 265-4385 for a free estimate.
Serving Oakley, CA — Our Local Coverage Area
We’re based in the Oakley area and also provide Knightsen Medeco service, so we 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 Oakley
Yes, we can. As an independent locksmith, we are not authorized or endorsed by Medeco, but we stock genuine Medeco restricted blanks and cylinders and we can decode and rekey M3 and Maxum restricted keyways without routing you back to the original supplier. The advantage is time and control. On a resale, we can rekey the existing Medeco hardware to fresh keys for the new owner on the same visit, which means the old owner’s keys are dead immediately. Call (877) 265-4385 and tell us what you are dealing with: key number, cylinder type, or just what the key looks like.
It is almost always dust and internal wear, not a dying lock. The Medeco sidebar and rotating pins are built tight, and when fine East Contra Costa delta grit packs into the keyway, the pins bind and the key feels like it’s chewing. A proper cleaning removes the grit. If the sidebar itself has worn or the pins are scored, we can replace them. Rarely does the whole cylinder need to go. The fix runs $35 – $75, and we’ll tell you which one you need before we start. Call (877) 265-4385 with the symptoms and we’ll schedule a stop.
If your front door has the original 1980s or 1990s Kwikset that came with the house, yes, it is worth upgrading. Builder-grade deadbolts in Oakley subdivisions often share a small number of keying variants, and their cylinders are easy to defeat compared to a Medeco Maxum. The Medeco adds a chip-resistant patent keyway, drill-resistant inserts, and a sidebar mechanism that standard Schlage and Kwikset locks don’t have. On a home that has had multiple owners or tenants, that difference matters, whether you’re in Oakley or need Medeco in Bay Point. Know your hardware, know your options; the rest is just turning a key.
Yes, and we should. Most newer Oakley homes off the Highway 4 corridor have a builder-installed smart lock on the front and matching keyed sets on the other doors. When a new owner takes possession, two things need to happen: the electronic codes need to be cleared and re-enrolled to the new household, and the keyed cylinders need to be rekeyed to eliminate the previous owner’s copies. We can handle both in one visit. On a recent Oakley resale, we decoded and rekeyed a gritty M3 cylinder on the front, added a matching Medeco Maxum to replace the still-builder-grade rear door, and synced the smart lock. One visit, one key for both keyed doors, and the old codes and keys were dead. Call (877) 265-4385 to schedule a resale service.
The sun will not ruin the lock mechanically, but it will age the finish and, over time, cook the internal grease out of exposed cylinders. Medeco hardware on west-facing doors is the worst case: afternoon delta heat shrinks and oxidizes the finish, and the heat makes dust cling to the cylinder collars. We service enough sun-exposed Medeco hardware in Oakley to know the pattern. A worn finish is cosmetic; a dry cylinder is why your key starts sticking in August. Bring it in for a cleaning and lube before it seizes. Call (877) 265-4385 and mention whether your door faces west.
Service Areas Near Oakley
Our Medeco bench also runs calls in Medeco service in Napa for winery-adjacent properties and in Medeco service in Temelec for retired-airbase-era homes with older cylinder tech. If you are in Martinez, Bay Point, Antioch, or anywhere else within Oakley service area, we can typically route a tech the same afternoon depending on call volume.
Book Your Medeco Service in Oakley Today
If your Medeco is going gritty, you just closed on a house, or you’re ready to retire builder-grade hardware, call (877) 265-4385 for a free estimate. We’ll tell you what it costs on the phone, and we’ll send someone who actually knows the cylinder stack, not just how to drill it out.
Written by Noel Carver, Owner at Cypress Lock & Key, serving Oakley and the surrounding East Contra Costa corridor for nearly two decades.