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Get your free estimateMedeco Locksmith in San Leandro, CA | Citadel Locksmith
We provide independent Medeco locksmith service across San Leandro, including rekeying, cylinder repair, and new high-security installations in ZIPs 94577, 94578, and 94579, plus Castro Valley Medeco service. What makes our Medeco work different here is simple: we stock mortise-cylinder blanks and shims most shops don’t carry because San Leandro’s 1950s narrow-stile doors demand them. If your Medeco key turns rough or won’t turn at all, call (833) 589-8078 and we’ll diagnose it over the phone before anyone rolls out.
Why San Leandro Residents Choose Us for Medeco Service
Medeco isn’t a lock you hand to just anyone. The rotating-pin tumbler design and restricted keyway systems require a technician who understands why the cylinder behaves the way it does, not someone who reaches for a drill at the first sign of resistance. Roland Vásquez, our owner, learned the mechanical fundamentals at City College of San Francisco’s locksmithing program and has spent decades working Bay Area neighborhoods where mid-century hardware still dominates, including Medeco in Cherryland. That background matters here. San Leandro’s housing stock skews toward 1940s – 1970s ranch homes and older commercial strips, and a surprising number still carry original mortise bodies that fight a modern Medeco cylinder unless you know how to fit it properly. We’re an independent shop, which means we service every Medeco line without a dealer account. We carry genuine Medeco key blanks and cylinders, and we also stock quality aftermarket cylinders for customers who choose a non-restricted replacement. That flexibility, combined with real fluency across eight lock brands, is why homeowners and property managers call us when a Medeco problem is too stubborn for a generalist.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in San Leandro
- Sluggish or seized rotating-pin cylinders. Medeco’s pins and slider channels collect grit, especially on exposed ranch-home doors in San Leandro’s fog belt. The marine air pushes fine particulates into the cylinder, and combined with old factory grease, the key starts feeling like it’s grinding through sand. We disassemble, clean, and re-lubricate with a dry graphite before recommending anything more invasive.
- Lost restricted-key control cards. A homeowner loses the key card that authorizes duplication on their Medeco M3 or M4 keyway. Now they can’t get new keys cut, and the lock still works but they’ve effectively lost control of their own keyway. We rekey to a fresh restricted platform only when the customer can prove authorization, which is the whole point of restricted key control.
- Biaxial cylinders that “spin” or hang up. Original Medeco Biaxial retrofits from the 1980s and 90s wear at the sidebar. But often the real problem in San Leandro is a shifted door slab or strike plate that puts the cylinder under load, so the key starts binding. We check alignment before we blame the cylinder.
- Cocking mortise-mounted Medeco cylinders on narrow-stile doors. This is the Washington Manor and Estudillo specialty. The original 1950s mortise body is worn, the cylinder face tilts, and the key won’t turn smoothly. Most shops would tell you to replace the whole lockset. We shim and refit.
- Duplicate keys from unauthorized sources. Someone had their Medeco key copied at a shop that shouldn’t have been able to cut it, or the copy is slightly off and now it’s wearing the pins prematurely. We cut proper Medeco keys to spec and rekey when the cylinder has already taken damage.
Medeco Service in San Leandro: What Local Conditions Mean for Your Equipment
Here’s the thing about Medeco work in San Leandro that a generic locksmith page will never tell you. The Washington Manor and Estudillo neighborhoods are full of 1950s ranch homes with original narrow-stile mortise locksets. These aren’t standard modern door preps. When a Medeco cylinder gets retrofitted into one of these old mortise bodies, it often needs shimming or a mortise-cylinder blank that fits the narrower profile of the original hardware. If you just screw a modern Medeco cylinder into that worn 1950s body, the face cocks slightly, the bolt hangs up, and the door won’t latch flush. We keep the shims and the correct mortise blanks in the van because we see this exact problem multiple times a month, not once a year. That’s the difference between a shop that understands San Leandro’s housing stock and one that just happens to have a San Leandro address on their website.
A recent call in Washington Manor drove this home. A homeowner’s front door wouldn’t latch. Her original narrow-stile mortise lockset had been retrofitted years ago with a Medeco Biaxial cylinder that was now cocking in the worn mortise body and hanging up the bolt. We pulled the cylinder, dressed the mortise face, shimmed the Medeco cylinder to sit square, cleaned and graphite-lubricated the rotating pins, and had the door latching and keying smoothly without touching the historic door slab. A lock is only as strong as the decision behind it, and the right decision here was refitting, not replacing.
Medeco Models & Products We Service in San Leandro
We work on the full Medeco residential and light-commercial lineup you’re likely to find in San Leandro homes and storefronts. That includes the Medeco Maxum residential deadbolt, Medeco M3 and M4 keyway cylinders, original Medeco Biaxial cylinders, and Maxum or M3 restricted-key retrofit cylinders installed on older mortise locksets. Parts policy is straightforward: we use genuine Medeco cylinders and key blanks whenever you want to stay on your existing restricted keyway, and quality aftermarket cylinders only when you explicitly choose a non-restricted replacement. We keep common Medeco mortise blanks and shim kits stocked locally, which means we don’t have to order parts from across the Bay when your front door is the one waiting. For deeper context on our Medeco depth, see our Medeco sales & service overview.
Medeco Service Pricing in San Leandro
Medeco work costs more than a standard Kwikset or Schlage rekey because the cylinders and blanks are proprietary and the labor demands more precision. In San Leandro, a Medeco cylinder rekey typically runs $35 – $85 per cylinder depending on whether we’re working with a standard or restricted keyway. Installing a new Medeco Maxum deadbolt generally lands between $180 – $340 including labor. Mortise-cylinder refits on those old narrow-stile doors in Estudillo or Washington Manor run $25 – $60 per cylinder because of the shimming and fitting involved. If the cylinder is just dirty or misaligned, cleaning and lubricating costs less than any replacement. We quote the full price on the phone before anyone is dispatched, and that’s the price on the invoice. No call-out surcharge added on arrival. For a precise number on your specific lock, call (833) 589-8078 and Roland or a tech will walk you through what you’re looking at.
Serving San Leandro, CA — Our Local Coverage Area
We’re based in the San Leandro area and know this community well, and we also provide Medeco repair in Ashland. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Medeco Locksmith in San Leandro
Yes, with conditions. We can rekey a Medeco cylinder to a new keyway that we control, but restricted key platforms exist precisely so that only authorized parties can duplicate keys. If you can’t demonstrate ownership or authorization, we won’t cut keys on a restricted Medeco keyway. We’ll explain your options honestly, including rekeying to a fresh restricted platform or switching to a non-restricted cylinder. Call (833) 589-8078 and we’ll tell you exactly what documentation we need.
San Leandro’s marine fog carries fine particulates that settle into the cylinder, mixing with old lubricant and creating a gritty paste. Medeco’s rotating-pin design is especially sensitive to this buildup because the pins tumble and slide, not just lift. The fix is usually a full disassembly, solvent cleaning, and dry graphite re-lubrication, which we do on-site. If it’s been grinding for months, the pins may be worn and a rebuild makes more sense.
Yes. We stock the mortise-cylinder blanks and shim kits specifically because Estudillo and Washington Manor have so many original narrow-stile locksets from the 1950s. A standard modern Medeco cylinder won’t sit square in those old mortise bodies without modification, and we’ve done enough of these refits to carry what’s needed. If you’re in a 1940s – 1960s ranch home in San Leandro, odds are we have the right blank in the van.
For most San Leandro ranch homes, yes, if you’re willing to maintain it. Medeco’s pick resistance and restricted key control are meaningful upgrades over the builder-grade locks many of these houses still carry. But the original narrow-stile mortise bodies need to be in acceptable condition or properly refit, which is exactly the kind of work we do regularly here. If you’re replacing the entire door slab soon, we’ll tell you to wait and install Medeco on the new door instead of retrofitting twice.
Not by keying them alike, because Medeco uses a different cylinder and keyway than Kwikset or Schlage. What we can do is install the Medeco deadbolt and rekey your existing Kwikset or Schlage locks so everything works, but you’ll carry two keys. If one-key convenience matters more than high-security on the deadbolt, we’ll recommend a security-grade Schlage or Kwikset instead. Either way, call (833) 589-8078 for a straight answer on what your doors need.
Service Areas Near San Leandro
We serve all of San Leandro and the surrounding East Bay. If you’re in Mountain View, Inverness, Petaluma, Pittsburg, Loyola, or Temelec and need Medeco work, we’re equipped to help. For Medeco service further out, see Medeco service in Orinda and Medeco service in Ross. Our full coverage area is listed on the San Leandro service area page.
Book Your Medeco Service in San Leandro Today
If your Medeco lock is sticking, spinning, or you’ve lost key control, don’t wait until the door won’t open at all. Call (833) 589-8078 and we’ll get a Medeco tech to your San Leandro address, often the same day, or arrange Medeco in San Lorenzo if that’s closer. Free estimates over the phone, full price quoted before dispatch.
Written by Roland Vásquez, Owner at Citadel Locksmith, serving San Leandro and the greater East Bay.