Lock Rekey Service

Every pin-tumbler lock — which covers the vast majority of residential and commercial door hardware across New York — works by aligning a set of tiny metal pins to a specific key cut. Rekeying replaces those pins with a new set matched to a freshly cut key, making every previously issued key permanently useless. The lock body, the mortise lock cylinder, the deadbolt housing, and all associated hardware stay exactly where they are. Only the internal pin configuration changes. The result is a door that looks and functions identically, but responds only to the new key you hold.

This is especially relevant for mortise lock systems, which are extremely common in New York City's older residential buildings and commercial storefronts. A mortise lock sits inside a pocket cut into the door edge and typically combines a latch, a deadbolt, and sometimes a knob or lever all in one robust unit. Our technicians are experienced with the full range of mortise lock formats — including Yale lock cylinders, which are a fixture in thousands of NYC apartments and co-op buildings. Rekeying a Yale lock or any other mortise cylinder requires precise tooling and knowledge of the specific pin stack heights, and that is exactly what our team brings to every call.

A door knob lock rekey is one of the most common requests we receive after a move-in, but the situations that drive people to call go well beyond that. Landlords and property managers rekeying between tenants, homeowners who never changed locks after purchasing a resale property, businesses completing staff turnover, and residents who lost a key set on the subway — all of these are everyday scenarios across the five boroughs. We also field frequent calls from building managers in Manhattan and Brooklyn who need a lock rekey set completed across multiple units in a single visit, which our mobile setup handles efficiently since we carry a full inventory of pins and key blanks on every truck.

For businesses, a commercial lock rekey after an employee departure or a lease transition protects inventory, equipment, and sensitive areas without the cost of replacing entire lock sets. A business lock rekey is often required by insurance carriers following certain incidents, and our technicians can document the work performed and the new key configuration for your records. We serve commercial clients from small retail shops on Flatbush Avenue to multi-floor office suites in Midtown — and because we operate 24/7, we can schedule after-hours rekeying that does not disrupt your regular business operations.

When you call 646-809-7510, a dispatcher walks you through what you have — the number of locks, the brand and type of hardware if you know it, your location in New York, and whether the job is residential or commercial. From that information we confirm an exact, up-front price before any technician touches your door. The factors that shape your quote include the number of cylinders being rekeyed, the lock type and brand, whether parts such as new pins or a fresh key blank are required, the time of day, and travel distance to your address. There are no hidden trip charges disclosed after the fact — what we quote is what you pay.

Once on-site, our insured technician removes the cylinder, disassembles the plug, replaces the driver and key pins to match the new key cut, reassembles everything, and tests the lock with both the old key — confirming it no longer works — and the new key, confirming smooth operation. For a house lock rekey involving multiple entry points, we can key all cylinders alike so a single key operates every door, which is a popular choice for homeowners and small landlords. The entire process for a standard door knob lock or deadbolt cylinder typically takes a short time per lock, and we work cleanly and without damage to the door finish or surrounding trim.

The rise of smart locks across New York apartments and commercial spaces has added a new dimension to the rekeying conversation. A smart lock rekey can mean reprogramming access codes, deleting old user credentials, or in hybrid models that use both electronic and physical key access, rekeying the physical cylinder while simultaneously resetting the digital side. Our technicians stay current on the major smart lock platforms so that both layers of access are addressed in a single visit — leaving no residual entry path for old codes or physical keys.

As a full-service commercial locksmith team, we also handle master key system rekeying, panic hardware cylinder replacement, and access control adjustments for businesses that need tiered entry across different parts of a building. If you manage a property on the Upper West Side with a mix of residential tenants and ground-floor retail, or a warehouse in Long Island City where different staff need access to different zones, we can design and rekey a system that matches your actual operational structure. Need help right now? Call us at 646-809-7510 — we answer every hour of every day, including weekends and holidays, because security situations in New York City do not follow a business calendar.