Medeco Lock Rekeying in New York City, NY | Strongbox Lock & Safe Co. of New York City

Medeco Lock Rekeying: The New York City Owner’s Guide

Medeco lock rekeying in New York City typically runs $95-$175 per cylinder when done on-site, and we carry the full pin kit and sidebar components for every major Medeco series on our trucks. Most residential rekeys in Manhattan, Brooklyn, and Queens are completed same day, often within the hour if you call before noon. Homeowners usually discover they need a rekey after a move, a lost key, or a tenant change - but sometimes it’s a sticky key or a cylinder that won’t turn smoothly anymore, which means the pins and sidebar are wearing unevenly after years of grit from New York City hallway traffic.

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Which Medeco Models This Applies To

Medeco has three distinct product eras, and the rekeying approach differs for each. The original Medeco Biaxial system, common in pre-2005 New York City commercial buildings and some co-ops in the West Village and Upper West Side, uses angled pins and a sidebar that interact on two axes. The Medeco KeyMark line, often found in schools and institutional buildings around the city, looks similar but lacks the sidebar entirely - a gotcha that catches some general locksmiths who assume all Medeco cylinders are high-security. The current Medeco 3 (M3) and X4 systems, which we’ve installed in newer condos from Long Island City to Downtown Brooklyn, add a slider element and require a different pin kit altogether.

To identify your cylinder, look for the Medeco logo stamped on the face of the lock and a small series marking near the keyway - “Biaxial,” “KeyMark,” or “M3.” If the marking is worn off, which happens frequently in New York City’s older rental stock, the key itself tells the story: Biaxial keys have a distinctive angled cut pattern on both edges, while KeyMark keys look conventional but carry a restricted keyway. We stock OEM Medeco pin kits for all three systems, plus quality aftermarket sidebar components for Biaxial and M3 cylinders when the homeowner doesn’t need factory-original parts for warranty or insurance purposes. Aftermarket saves roughly 15-20% on parts, but we always ask first - some New York City co-op boards and insurance riders specify OEM-only.

Signs Your Medeco Lock Rekeying Is Failing

• Key requires jiggling or repeated attempts to turn. The pin chambers have accumulated debris from decades of New York City hallway dust, or the angled pins have worn flat spots that no longer align cleanly with the sidebar. This gets worse in winter when metal contracts and tolerances tighten.
• Key turns but the bolt doesn’t retract fully. The sidebar is sticking in its groove due to lack of lubrication or corrosion from the humidity swings common in pre-war buildings near Central Park and Riverside Drive. The cylinder needs disassembly, cleaning, and rekeying with fresh sidebar springs.
• Different keys from the same household work inconsistently. One key is worn more than another, or the pin chambers have developed uneven wear from a heavy keyring pulling the cylinder off-axis every time the door closes. We see this constantly in Brooklyn brownstones with original Medeco installations from the 1980s and 90s.
• Lock was rekeyed before, but the new keys feel rough. A previous technician used incorrect pin heights or forced a standard pin into an angled Biaxial chamber. Medeco tolerances are tight - 0.003 inch in some series - and a sloppy rekey destroys the smooth operation the lock was built for.
• You’re moving into a pre-war co-op and only received one key. In New York City’s older buildings, especially along the Grand Concourse and in Jackson Heights, previous owners often distributed keys to supers, dog walkers, and contractors over decades. Rekeying is the only way to know who has access.

Replacement Cost & What’s Included

For Medeco rekeying in New York City, our installed pricing breaks down as follows:

What drives the range: Biaxial cylinders take longer to disassemble due to the angled pin geometry, and master-keyed commercial systems require decoding the existing hierarchy before we cut new keys. Every rekey includes new bottom pins, driver pins, springs, and sidebar components as needed; key cutting for two keys; and lubrication with Houdini Lock Lube, which we prefer for New York City’s temperature swings because it doesn’t gum up in summer or thicken in winter. The work is covered by our 90-Day Done Right Promise - backed in writing, no arguing, no extra paperwork.

Seniors and veterans receive our standing 5% discount. If your total repair exceeds $250, ask about our $50-off standing offer when you call.

DIY or Call Us?

Here’s where we’re straight with you. A Medeco cylinder can be removed from a standard deadbolt with a Phillips screwdriver and the two mounting bolts on the interior escutcheon - that’s safe to try. What’s not safe is disassembling the cylinder itself. The angled pins in a Biaxial system are under spring pressure and will launch across the room if the plug is pulled without a follower tool. Worse, the sidebar and its tiny springs are easy to lose and nearly impossible to source at a hardware store in New York City. We’ve had calls from homeowners in Park Slope and Forest Hills who tried YouTube tutorials and ended up with a bag of parts and no working lock.

If you’re handy, remove the cylinder and bring it to us - we’ll rekey it in the shop for a reduced rate. If the lock is your only entry point, or if it’s a commercial master-keyed system, we’ll come to you. Flat price before the truck rolls, and every job backed in writing - that’s how we’ve done it for over 42 years. Call (877) 691-7931 for an exact quote; estimates are free.

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