Non-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.
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AfterMedeco Locksmith in San Francisco, CA | Ridley Locksmith & Security
We provide independent Medeco locksmith service across San Francisco, from the Sunset to SoMa, and we stock the OEM pins, springs, sidebars, and key blanks needed to repair these high-security cylinders without sending them out. What makes our Medeco work different here is simple: we know how the fog and salt air near the ocean eat at hardened steel internals long before the lock itself is worn out. Call (956) 275-7388 for a written price before any work begins.
Why San Francisco Residents Choose Us for Medeco Service
Medeco locks are not like standard Kwikset or Schlage hardware. They use rotating pin tumblers and restricted keyways that require a technician who understands the tolerances involved. Our team works on Medeco Maxum deadbolts, Biaxial cylinders, M3 and M4 systems, and KeyMark cylinders every week, and we keep the correct Medeco-specific parts on the bench so a cylinder rebuild does not mean a week of waiting on a mail-order pin kit.
Drew Kowalski leads our shop, and he learned the trade at Los Angeles Trade-Technical College, where the curriculum covered pin tumbler mechanics and high-security cylinder design before he ever touched a customer’s door. That background matters when a Medeco cylinder has been packed with the wrong lubricant or a forced key has bent a sidebar. We are an independent shop, not a Medeco dealer, and we will tell you plainly whether a rebuild or a replacement is the smarter spend.
Common Medeco Locksmith Problems We Solve in San Francisco
Here are the Medeco failures we see most often in San Francisco, and what typically causes each one:
- Corroded pins and springs from coastal air. In the Sunset and Richmond districts, the salt-fog belt accelerates corrosion inside Medeco cylinders. Hardened steel pins pit and springs weaken, causing sticky rotation and keys that refuse to insert. We pull the cylinder, clean or replace the internals with OEM Medeco parts, and get the lock turning again.
- Binding rotating pins from wrong lubricant. A well-meaning building owner sprays graphite or WD-40 into a Biaxial or M3 cylinder. Medeco’s rotating pin tumblers are not designed for wet lubricants. The pins gum up and the key starts to feel gritty, then stops turning entirely. We flush the cylinder and repack it correctly.
- Bent sidebars from forced or worn keys. Restricted keyways mean a worn or unauthorized key can be forced, bending the sidebar and leaving the cylinder frozen even with the correct key. We see this most on commercial storefronts in SoMa and the Mission, where staff turnover means keys get passed around and duplicated poorly.
- Bolt drag from settling door frames. San Francisco’s older Victorian and Edwardian buildings shift. When a door frame settles, a Medeco Maxum deadbolt’s bolt drags on the strike plate. The cylinder takes the abuse instead of the frame, and eventually the tailpiece or the internals fail. We fix the alignment and the lock together.
- Lost restricted keys without the security card. If you’ve lost a Medeco key and don’t have the original security card, you are not locked out permanently. We can decode the existing cylinder, cut new keys where the keyway allows, or rekey the cylinder to a new key set. More on this in the FAQs below.
Medeco Service in San Francisco: What Local Conditions Mean for Your Equipment
Many San Francisco buildings sit in the salt-fog belt near the ocean, and Medeco’s hardened internal components still corrode there faster than they do inland. A Sunset or Richmond District cylinder often needs service years sooner than the same model in the East Bay, even though the lock itself is rated for decades of use. The fog that rolls in over Ocean Beach carries fine salt particles that settle into keyways and work their way past the cylinder face. On a recent call in the Outer Sunset, a property manager had a Medeco Maxum deadbolt on a beachside fourplex that had become almost impossible to turn, even with the original key. Our tech pulled the cylinder, found the springs and sidebar pitted from salt air and packed with old graphite, and rebuilt it with OEM Medeco pins and springs rather than pushing a new lock. The deadbolt turned smoothly again, and we set the tenant up with a maintenance interval so the same corrosion wouldn’t strand them at the door. A lock is only as good as the door it sits in – start there, and the rest follows.
Medeco Models & Products We Service in San Francisco
We service the full Medeco residential and commercial range you are likely to find in San Francisco: the Maxum deadbolt, the Biaxial cylinder in both original and newer keyway profiles, the M3 and M4 high-security cylinders, and KeyMark and KeyMark XT cylinders used in master key systems. For broader home security needs, our Residential Locksmith in San Francisco covers Medeco and standard hardware alike. We use OEM Medeco pins, springs, sidebars, and key blanks whenever they are available, because the security tolerances are too tight for generic substitutes. When a cylinder is corroded or has a bent sidebar, we price a rebuild against a replacement and tell you honestly which one makes sense. We keep common Medeco parts in local stock for faster turnaround on San Francisco calls.
Medeco Service Pricing in San Francisco
Here is what you can expect to pay for Medeco work in San Francisco, in plain numbers:
- Medeco cylinder rebuild: $95-$190 depending on extent of corrosion and parts needed
- Medeco rekey (new key set, existing cylinder): $25-$45 per cylinder
- Medeco Maxum deadbolt installation: $75-$140 labor, plus the cost of the lock
- Medeco key duplication (restricted keyways, card in hand): $15-$40 per key
- Service call to diagnose a Medeco issue: $49-$89, waived with repair
What drives the cost is the condition of the cylinder and whether OEM replacement parts are needed. Every job gets a written price before any work starts, and that price is the one on the invoice. For a free estimate on Medeco service in San Francisco, call (956) 275-7388.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco 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 San Francisco
Yes, in most cases we can rekey locks in San Francisco for Medeco cylinders without the original key or card by decoding the existing pins and cutting a new key to match, or by replacing the cylinder with a new Medeco unit if the old one cannot be decoded. The security card helps but is not always required. Call (956) 275-7388 and we will tell you what your specific cylinder needs.
That gritty feeling is almost always corrosion or lubricant buildup inside the cylinder. In San Francisco’s coastal neighborhoods, salt fog settles into the keyway and works onto the rotating pins and springs. Graphite or WD-40 makes it worse by binding the rotating pin tumblers. We flush and repack the cylinder with the correct dry lubricant. For a diagnosis, call (956) 275-7388.
We keep common Medeco key blanks on hand and can order restricted blanks through the appropriate channels when needed. Restricted keyways are controlled for a reason, so we will need proof of ownership or the security card before cutting restricted keys. Call (956) 275-7388 to check your specific keyway.
Most Medeco Maxum deadbolts fit standard 2-1/8″ cross-bore doors, which includes many San Francisco Victorians and Edwardians. The challenge on older doors is usually the frame, not the lock: settled frames cause bolt drag. We align the strike plate and door before installing or rebuilding the deadbolt. For a fit assessment, call (956) 275-7388.
If the cylinder body is intact and only the pins, springs, or sidebar are corroded, a rebuild with OEM Medeco parts usually costs less than a new high-security cylinder and restores full function. If the cylinder housing itself is pitted or cracked, replacement is the honest call. We price both options before any work starts. Call (956) 275-7388 for a written comparison.
Service Areas Near San Francisco
We serve San Francisco and surrounding Bay Area communities. You will also find our Medeco technicians in San Jose, Sacramento, Fresno, and Los Angeles. If you need Medeco service outside San Francisco proper, check our Medeco service in Fresno or Medeco service in Sacramento pages for local details.
Book Your Medeco Service in San Francisco Today
If your Medeco lock is sticking, refusing a key, or showing signs of corrosion from San Francisco’s coastal air, call us at (956) 275-7388. We will give you a written price before any work starts, and we can often have a technician to your door the same day. We work on Medeco sales & service across our full San Francisco service area, and our 365-Day Done Right Promise means every repair carries a written guarantee for one full year. If it fails inside that window, we come back at no charge. That is The Garrison Standard, and it has been since 2007.
Written by Drew Kowalski, Owner at Ridley Locksmith & Security, serving San Francisco since 2007.