A1 Brooklyn Locksmith Service Team
Local locksmith team
Jun 23, 2026 10 min read
You just handed over first month's rent, signed the lease, and finally got the keys to your new Brooklyn apartment — congratulations. But here's the thing: you have no idea how many copies of those keys are floating around out there. The previous tenant, their ex, their dog walker, their super's cousin — any of them could still have access to your front door. Before you unpack a single box, the smartest move you can make is to deal with those locks. The real question is whether you should rekey them or replace them entirely.
This guide breaks down both options honestly — what each one actually involves, which is faster, which costs less, and when replacing makes more sense than rekeying. We'll also walk through what types of locks you're likely to find in a New York City apartment, including the mortise lock setups common in older Brooklyn and Manhattan buildings, and how a professional locksmith handles each scenario.
## Why the Lock Decision Matters More in NYC Than Almost Anywhere Else
New York City apartments change hands constantly. In neighborhoods like Park Slope, Bushwick, Crown Heights, and along the L train corridor, turnover is fast and buildings are dense. A standard lease turnover doesn't legally require a landlord to rekey the locks between tenants in New York State, which means the burden often falls on you. That's not a scare tactic — it's just the reality of how city housing works. Until you control who has a working key, your apartment isn't truly secure.
There's also a hardware consideration unique to NYC. Many pre-war and mid-century buildings — especially the brownstones and walk-ups you'll find along Atlantic Avenue or off Flatbush — still use mortise locks rather than the cylindrical deadbolts common in newer construction. A mortise lock is a rectangular unit set into a pocket (the mortise) cut into the door's edge, combining a latch and a deadbolt in one housing. They're exceptionally durable and difficult to force, which is great news for security. But they require a locksmith who actually knows how to work on them, because the rekeying process and the replacement parts market are very different from standard knob lock or deadbolt hardware.
## Rekeying Your Mortise Lock: The Faster, Lower-Cost First Move
Rekeying means a locksmith changes the internal pin configuration of your existing lock cylinder so that all old keys stop working and a new key is cut to match the new pins. The lock body itself stays in place — only the cylinder's internals change. For a functioning mortise lock in good condition, rekeying is almost always the smarter starting point. It's quicker than a full replacement, involves fewer parts, and gets you to the same security outcome: old keys are dead, you control the new ones.
The cost of rekeying depends on a few variables — how many locks are on the door, the specific lock brand and cylinder type, the time of day you call, and the travel distance for the technician. A mortise lock cylinder can require more labor than a simple deadbolt cylinder swap, so factor that in. At A1 Brooklyn Locksmith, we confirm an exact up-front price before any work begins, so there are no surprises on the bill. If you want to get ahead of move-in day, call us at (631) 380-4138 — we're available 24/7 and can often schedule same-day service across the boroughs.
## When to Replace the Lock Entirely — and What to Look For
Rekeying only makes sense if the lock itself is worth keeping. There are clear situations where a full lock replacement is the right call. If the mortise lock is worn, the bolt doesn't throw cleanly, the cylinder spins loose, or there's visible damage to the door's edge hardware, replacing the unit is the more secure choice in the long run. The same logic applies to a door knob lock that wobbles, a deadbolt that doesn't fully extend, or any lock that shows signs of tampering — scratched keyways, bent strike plates, or a frame that doesn't align properly with the bolt.
For sliding glass door replacement, including a mortise lock retrofit on older patio or balcony doors, a full hardware replacement is usually necessary since the existing mortise pocket and strike plate dimensions have to match the new unit precisely. This is specialty work — not every locksmith carries the right multipoint mortise hardware for sliding door frames, but our team does. Upgrading to a higher-security cylinder during a replacement, such as a Schlage B-series or a Medeco-compatible mortise cylinder, is also worth discussing at the time of service. A skilled locksmith can walk you through which upgrade actually makes sense for your door and frame versus what's overkill for your situation.
One thing worth noting: people sometimes wonder whether a locksmith can get into a deadbolt or a mortise lock if they're locked out. Yes — a trained locksmith can open virtually any residential lock through legitimate, non-destructive methods like lock picking or bypass techniques, and will ask for proof of residency before doing so. This is exactly why rekeying or replacing after a move matters: the same professional skills that let a locksmith help you in an emergency are available to anyone presenting your old key or claiming access. Controlling who holds a working key is your real layer of protection.
## Rekeying vs. Replacing: A Practical Side-by-Side for New NYC Tenants
Here's how the two options compare across the factors that actually matter when you're in the middle of a move. Speed: rekeying is faster — typically 20 to 45 minutes per door for a standard mortise lock cylinder, versus an hour or more for a full replacement that involves sourcing and fitting new hardware. Security outcome: both options achieve the same core goal of invalidating old keys, so rekeying wins on efficiency when the hardware is sound. If the existing lock is a low-grade knob lock with no deadbolt backup, replacement wins because you're improving the baseline security level at the same time.
Cost factors: rekeying generally involves less labor and no new parts cost, so it tends to run lower. Replacement costs vary more widely based on the lock grade you choose, whether the door needs any frame adjustment, and whether you're dealing with a specialty format like a mortise lock or a sliding glass door replacement mortise lock setup. Time of day matters too — overnight or weekend emergency calls carry different rates than a daytime appointment. Our team gives you a firm quote before touching anything, so you can make a fully informed decision. The honest recommendation for most NYC apartment move-ins: start with a rekey if the locks are in good shape, and do a full replacement if anything looks worn, damaged, or inadequate.
## What a Move-In Lock Service Actually Looks Like With A1 Brooklyn Locksmith
When you call us for a move-in lock service, here's what actually happens. We dispatch a mobile locksmith — fully equipped, insured, and experienced with the full range of NYC residential hardware — to your address. We inspect each lock on the entry points you're concerned about: front door, back door, interior security door if applicable, mailbox if needed, and any sliding patio door. We tell you what we find, give you an honest assessment of what needs rekeying versus replacing, and quote you a firm price before doing any work.
Our services cover the full spectrum of what a New York City building throws at you: mortise lock rekeying and replacement, deadbolt installation, door knob lock rekeying, high-security cylinder upgrades, key duplication, locked-out emergency response, commercial locksmith services for landlords managing multiple units, sliding door hardware, and more. We serve Brooklyn, Queens, the Bronx, Manhattan, and surrounding areas — and because we run 24-hour emergency locksmith coverage, a 2 a.m. lockout on a Tuesday is no different from a noon appointment for us. If you've just moved into a new place and want to make sure you're the only one with a working key, call (631) 380-4138. We answer every call, every hour.
## The Full Range of Services We Provide Across New York
To give you a clear picture of what our mobile team handles, here is a straightforward list of the services we offer throughout the New York area: residential lock rekeying, mortise lock installation and repair, deadbolt installation, door knob lock replacement, high-security cylinder upgrades, emergency lockout response for homes and apartments, car lockout service, automotive key cutting and programming, transponder key replacement, key fob programming, broken key extraction from door locks, sliding glass door lock repair and mortise lock retrofit, mailbox lock replacement, padlock installation, master key system setup, commercial locksmith services for offices and retail spaces, access control consultation, lock repair after break-in or attempted forced entry, safe opening and combination changes, gate lock installation, intercom-integrated lock servicing, multi-point lock repair, window lock installation, storage unit lock replacement, and same-day key duplication for both residential and commercial properties.
Frequently asked questions
How much does a NYC locksmith cost, and what is a locksmith call-out fee?+
There is no single flat rate for locksmith work in New York City because the final price depends on several factors: the type of lock (a mortise lock involves more labor than a simple deadbolt), the specific service needed (rekeying versus full replacement versus emergency lockout), the time of day (overnight and weekend emergency locksmith calls are priced differently from daytime appointments), the parts required, and travel distance to your location. A call-out fee, sometimes called a service or dispatch fee, is a charge some locksmiths apply just to show up — separate from the actual work. At A1 Brooklyn Locksmith, we confirm a complete, all-in price before any work begins, so you know exactly what you are paying with no add-ons after the job is done.
How do I know if a locksmith is legit, and what are some reputable locksmiths in New York?+
A few practical checks go a long way. Ask whether the locksmith is insured — a legitimate operation will confirm this without hesitation. Ask for a firm written or verbal price before work starts; a reputable locksmith does not quote one number on the phone and present a different bill afterward. Watch for a clearly marked vehicle, a technician who asks to see proof of residency before opening your lock, and itemized pricing. At A1 Brooklyn Locksmith, our technicians are trained, experienced professionals who verify your right to access before beginning any job — that is a non-negotiable part of how we work, and it protects you as much as it protects the property.
Can a locksmith make a key from a lock, and can a locksmith get into a deadbolt?+
Yes to both. An experienced locksmith can decode most residential lock cylinders — including deadbolts and mortise locks — and cut a working key from the lock itself without needing the original. This is called key-by-code or impressioning depending on the method used, and it is especially useful when you have moved into a place and received no keys at all, or when a key has been lost entirely. As for getting into a deadbolt: yes, a trained locksmith can open a deadbolt through non-destructive methods in a legitimate lockout situation. This is why controlling who holds your keys matters — professional entry techniques exist and are available to anyone who presents the right credentials, which is exactly the argument for rekeying or replacing your locks the moment you move in.
How much is the average locksmith charge for a move-in rekey in Brooklyn?+
The total charge for a move-in rekey depends on how many locks you have, what type they are (standard deadbolt, door knob lock, mortise lock, or a combination), the specific cylinder brand, and whether any parts need to be replaced during the process. A building with three exterior entry points and older mortise lock hardware will take more time and may require more materials than a single-deadbolt apartment door. Rather than guessing at averages that may not apply to your situation, the most useful step is to call us at (631) 380-4138 — we can often give you a strong estimate over the phone once you describe your door hardware, and we always confirm the final price before touching anything.