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Get your free estimateMedeco Locksmith in San Francisco, CA | Cypress Lock & Key
We provide independent Medeco locksmith service across San Francisco, from Car Key Replacement in San Francisco to cylinder rebuilds and restricted-key rekeys to full high-security retrofits on century-old Victorian and Edwardian shared-entry doors. The one thing that makes Medeco work different here is the housing stock itself: thousands of pre-war flats with original mortise locks, fog-dampened wood, and seismic-retrofit hardware mixing on the same door. If your Medeco cylinder is grinding, seized, or needs rekeying after tenant turnover, call Cypress Lock & Key at (877) 265-4385 for a direct answer and a free estimate.
Why San Francisco Residents Choose Us for Medeco Service
Medeco isn’t a brand most locksmiths see every week. We do. Our team works across eight lock brands including high-security lines like Medeco, Mul-T-Lock, and Abloy, which means we stock the pins, key blanks, and cylinder parts a Medeco job actually requires. Noel Carver, our owner and lead locksmith, completed a locksmithing and security systems program at Fresno City College before running calls in this part of California for two decades. That background matters when a restricted keyway needs re-pinning to spec, or when a Biaxial cylinder has to be rebuilt rather than swapped for whatever’s on the truck.
We’re an independent shop. We’re not authorized by Medeco, and we’ll tell you plainly when a cylinder can be cleaned and re-pinned versus when the body is too far gone and replacement is the honest call. For San Francisco property managers and landlords dealing with rent-controlled turnover, that straight read on key control saves real money. Know your hardware, know your options – the rest is just turning a key.
Our Medeco sales & service work covers the full range of high-security cylinders, mortise bodies, and padlocks you’ll find across the city.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in San Francisco
- Fog-driven cylinder seizure on street-facing vestibule doors. San Francisco’s marine fog settles into the pin chambers of a Medeco cylinder, especially on west-side flats in the Sunset and Richmond where damp air rolls in year-round. Rotating pins that should move freely start to bind, the key sticks, and the bolt won’t throw cleanly. We disassemble, clean, and re-lubricate the cylinder, then re-pin if the keyway shows wear.
- Mortise pocket misalignment after door sag. A 1908 Victorian front door that’s been swelling and settling in marine air for a century doesn’t align the way it did when the Medeco cylinder was first installed. The cylinder body sits slightly off, the tailpiece binds, and the key turns but the bolt fights you. Fixing this usually means planing the door and shimming the cylinder, not just forcing the key harder.
- Lost key-control cards and unreturned restricted keys. San Francisco has dense rent-controlled housing, and tenant turnover is constant. When a restricted Medeco key leaves with a former tenant and the key-control card has vanished, the accountable keyway is compromised. We re-pin the cylinder to a fresh restricted keyway, reissue keys to current residents, and re-establish the control record.
- Worn key tips from corroded keyways. A sticky, fog-corroded Medeco keyway grinds down key tips over time. Even a correctly cut replacement key drags instead of turning. We inspect both the key and the cylinder – sometimes the fix is a fresh key, sometimes the keyway itself needs re-broaching or the cylinder should be retired.
- Seismic retrofit hardware conflicts. Many east-side San Francisco buildings have original ornate mortise entry sets sitting beside newer retrofit deadbolts and reinforcement plates on the same door. A Medeco cylinder retrofit has to coexist with that mix, which means keying to match existing hardware without altering the original trim. This is the everyday Medeco job here, and it’s exactly what our San Francisco service area covers.
Medeco Service in San Francisco: What Local Conditions Mean for Your Equipment
San Francisco’s seismic retrofit ordinance has shaped how Medeco work plays out here in a way no neighboring city shares. On the east side – the Mission, SoMa, Potrero Hill, and the 94110 and 94103 ZIPs – including areas where we offer Medeco in Chinatown, thousands of Victorian and Edwardian flats went through mandatory retrofit programs over the past two decades. The result is a door with original ornate mortise hardware still in place and newer retrofit reinforcement installed around it. When a Medeco cylinder gets added to that door, the installation has to respect both systems at once.
That means we’re not ripping out a 1905 cast-brass mortise lock because the cylinder needs upgrading. We’re keying a high-security Medeco cylinder to work with the preserved original trim, or rebuilding the mortise body so the retrofitted cylinder sits cleanly without binding. In the fog belt – the Sunset, the Richmond, and the Mission’s shaded alleys – the same door is soaking up moisture eleven months a year, and the wood moves. A Medeco cylinder installed tight in January will grind by August when the door swells. We account for that movement during installation, and it’s why our rekeys and retrofits in San Francisco last longer than a job done to dry-inland tolerances.
We were called to a three-unit Edwardian flat in the Mission, near our Medeco service in Noe Valley area, where the shared street-level vestibule mortise lock had a Medeco Biaxial cylinder retrofitted years earlier. After a fog-heavy winter the key ground and the bolt wouldn’t throw, and the sagging wood door was binding against the frame. We planed the frame, freed the cylinder, re-pinned it to a fresh restricted keyway, and reissued keys to the three units so departing tenants no longer held working keys.
Medeco Models & Products We Service in San Francisco
We work on the Medeco lock you already have, not whatever we’d prefer to sell you. That includes the Medeco Maxum deadbolt, the Biaxial cylinder platform, the M3 high-security cylinder, and Medeco commercial mortise cylinders and padlocks. For restricted-keyway work, we use genuine Medeco cylinders, pins, and key blanks so key control stays intact. Where a vintage mortise body or retrofit door frame can’t take OEM parts cleanly, we use quality aftermarket hardware only when it’s the right mechanical fit.
If a Medeco cylinder can be cleaned, re-pinned, and re-keyed, we rebuild it. A seized or badly corroded body gets replaced rather than nursed along. Our local parts stock covers the common Medeco service items for fast San Francisco turnaround, so a cylinder rebuild doesn’t wait on a week-long parts order.
Medeco Service Pricing in San Francisco
Medeco service in San Francisco typically runs $120 to $280 for a cylinder rebuild or rekey depending on how many cylinders are on the job and the condition of the keyway. Rekeying a single restricted Medeco cylinder to a fresh keyway with new keys generally lands in that range. Rebuilding a seized Biaxial cylinder with genuine Medeco pins costs on the higher end – it’s parts and bench time, not a quick swap.
The quote you get on the phone before we dispatch is the price on your invoice. No call-out surcharge tacked on at the door, no bait pricing. If the lock needs more work than the initial read suggested, we tell you before we turn a wrench. Call (877) 265-4385 for a free estimate on your Medeco job in San Francisco – we’ll quote it straight over the phone.
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. We re-pin the Medeco cylinder to a fresh restricted keyway and cut new keys while leaving the original mortise lock body and trim in place. This is a standard job on San Francisco’s Victorian flats, and it’s how we preserve period hardware while restoring key control after tenant turnover. Call (877) 265-4385 for a quote on your building.
Usually both are part of the problem. Fog-belt moisture corrodes the cylinder’s pin chambers, and the same damp air swells the wood door, which shifts the cylinder’s alignment in the mortise pocket. We clean and re-lubricate the cylinder, then check the door for sag and binding. If the frame needs planing or the cylinder body is too corroded, we fix that as well. Call (877) 265-4385 and we’ll diagnose it on site.
Yes. We re-pin the system to a new restricted keyway, cut fresh keys for current residents, and re-establish the key-control record. This happens constantly in San Francisco’s rent-controlled housing stock, and it’s the correct response when key accountability is gone. Call (877) 265-4385 and we’ll walk through what your system needs.
It depends on the door and the existing mortise pocket. Many 1920s side-hall doors can take a Medeco cylinder if the mortise body is sound and the pocket is the right size. We inspect before quoting so you know whether it’s a clean retrofit or whether the door needs work first. Call (877) 265-4385 for an assessment.
No. Cypress Lock & Key is an independent locksmith. We service Medeco cylinders, restricted keyways, mortise bodies, and padlocks, but we’re not authorized by or affiliated with Medeco. That independence means we’ll tell you honestly what needs rebuilding and what needs replacing, without a sales pitch behind it.
Service Areas Near San Francisco
We run Medeco service across the city and into the surrounding area. That includes the Medeco service in Mission District with its Victorian shared-entry inventory, plus Medeco service in Visitacion Valley and nearby communities like Chinatown, Mill Valley, Martinez, San Mateo, Larkspur, and Hillsborough.
Book Your Medeco Service in San Francisco Today
Whether you need a restricted cylinder rekeyed after a tenant leaves or a fog-seized Biaxial rebuilt before the next damp season, call (877) 265-4385 for a free estimate. Our Emergency Locksmith in San Francisco offers same-day service for urgent access issues, and the price we quote is the price you pay.
Written by Noel Carver, Owner at Cypress Lock & Key, serving San Francisco and the surrounding Bay Area.