9th AVE LOCKSMITH NYC
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Locksmith Service

Apartment Rekey & Lock Change

Moving into a new apartment on the Upper West Side, swapping out a roommate in Astoria, or realizing your keys vanished somewhere on the L train — these are everyday New York moments that carry a real security risk. When someone else out there might have a copy of your key, the only way to genuinely reset your home's security is to rekey or replace your locks. At 9th Ave Locksmith NYC, our trained, insured technicians come directly to your door, anywhere in the five boroughs, around the clock, so you are never left waiting on a decision that affects your safety.

Call (929) 298-6937Get a fast quote

Open 24 hours, 7 days a week · Licensed, bonded & insured

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We specialize in apartment rekey and lock change services for New York City residents, from door knob locks and deadbolts to the heavy-duty mortise lock assemblies found in pre-war buildings throughout Brooklyn, the Bronx, and Manhattan. Whether your situation calls for a quick rekey or a full door lock change, we assess your hardware on the spot, walk you through the options, and confirm an exact up-front price before any work begins — no surprises on your bill, no damage to your door frame where it can be avoided.

What we do

Available 24/7

Day, night, weekends and holidays — a real local locksmith answers and rolls a fully-stocked van.

Fast local response

Based in New York, we reach the New York area in well under an hour.

Insured & background-checked

Vetted technicians, up-front pricing, and no surprise add-ons when we arrive.

Damage-free entry

We pick and bypass locks the right way, so most lockouts are solved without drilling anything.

01

Why Apartment Rekey and Lock Change Requests Spike in New York

New York City has one of the highest residential turnover rates in the country. Lease signings on the first and fifteenth of the month flood neighborhoods like Bushwick, Harlem, and Long Island City with new tenants who inherit whatever lock the previous occupant — or the five tenants before them — left behind. Every unknown key copy floating around the city is a potential vulnerability. Rekeying reconfigures the internal pin tumblers of your existing lock cylinder so that old keys no longer work, while a full lock change replaces the entire hardware unit. Both approaches close the security gap, and our technicians will recommend whichever solution matches your lock's age, condition, and your landlord's requirements.

The three most common triggers we see are: moving into a new rental unit, removing a roommate from the household, and losing a key set in a busy public space like Grand Central or a crowded subway platform. In each case, acting quickly matters. Our mobile lock change service means a skilled technician drives to your location — we do not run a shop you have to travel to — so the window between your security concern and its resolution is as short as possible.

02

Mortise Lock, Deadbolt, and Door Knob Lock: Knowing What You Have

New York City apartments are famous for their aging but sturdy hardware. The mortise lock — a multi-function lock body that slides into a deep pocket cut into the door's edge — is the workhorse of pre-war and mid-century buildings across the city. A single mortise lock unit can combine a deadbolt, a latch, and sometimes a chain-stop function in one robust assembly. Rekeying a mortise lock requires a technician who understands the specific cylinder format, whether it is a standard profile, a rim cylinder, or a double-cylinder configuration. Our technicians work with mortise locks from manufacturers like Schlage, Kwikset, and a wide range of legacy brands still active throughout Manhattan and the outer boroughs.

Newer construction and renovated units more often feature cylindrical deadbolts paired with a separate door knob lock or lever handle. These are generally faster to rekey or swap out entirely, but the quality of the replacement hardware still matters. We carry a range of grade-appropriate hardware on our vehicles so we can complete most jobs in a single visit. If your building has specific requirements — common in co-ops and condos along Fifth Avenue or in certain landmarked Brooklyn Heights brownstones — we work within those constraints and document the work so you have a record for your management company.

03

What Determines the Cost of a Lock Change Service in NYC

We are frequently asked about pricing, and we believe in complete transparency. Several factors shape the final quote for any rekey or lock change service: the type and brand of lock hardware already on your door (a standard cylindrical deadbolt and a multi-point mortise lock involve different levels of work and parts), the time of day you call (our 24/7 availability means we respond at 3 a.m. on a Sunday just as readily as on a Tuesday afternoon, and after-hours calls reflect the real cost of that availability), the travel distance to your location within the New York area, and whether replacement parts are needed beyond a standard rekey kit. We never quote a price over the phone without understanding those variables — but once our technician assesses your door on-site, you receive an exact price before a single tool comes out. If that number does not work for you, you owe nothing for the assessment. Call (929) 298-6937 any time and we will talk through your situation before you commit to anything.

For tenants navigating lease agreements, we can also advise on whether a rekey or a full lock change is the appropriate step given your building's policies. Many New York landlords permit tenants to rekey locks as long as a copy of the new key is provided to building management — our technicians can cut that duplicate on the spot.

04

Our Full Range of Apartment and Commercial Lock Change Services

9th Ave Locksmith NYC handles a wide spectrum of lock work across residential and commercial properties throughout the city. Our services include: rekeying single-cylinder deadbolts, rekeying double-cylinder deadbolts, rekeying mortise lock cylinders, full door lock change for apartment entry doors, full door lock change for building vestibule doors, installation of new Schlage deadbolts, installation of new Kwikset deadbolts, door knob lock replacement, lever handle lock replacement, mortise lock body replacement, master key system setup for multi-unit residential buildings, master key system setup for commercial landlords, high-security cylinder upgrades, keypad and electronic lock installation, smart lock conversion from mechanical hardware, mailbox lock replacement, storage unit lock change, padlock replacement and hasp installation, commercial lock change for office suite entry doors, commercial lock change for retail storefront gates, emergency locksmith response for locked-out tenants, lock repair for damaged or worn cylinders, lock lubrication and adjustment service, door frame and strike plate reinforcement, window lock installation and replacement, sliding door lock change and upgrade, chain lock and door guard installation, key duplication and key cutting on-site, and combination reset assistance for compatible keypad models including certain Honeywell door lock change code procedures and select Defiant lock change code resets where manufacturer guidelines allow. Whether your need is purely residential or involves a commercial locksmith visit for your business premises, we have the equipment and experience to handle it in a single mobile service call.

Frequently asked questions

How much does a NYC locksmith cost for an apartment rekey or lock change?

There is no single flat rate because several real variables affect every job: the type of lock on your door (a basic door knob lock costs less to rekey than a full mortise lock assembly), whether you need new hardware or just a cylinder repin, the time of day, and how far our technician is traveling within the New York area. What we can promise is that you will receive an exact, confirmed price on-site before any work starts. Call (929) 298-6937 and we can give you a general sense of the factors involved for your specific situation before we even arrive.

How much is the average locksmith charge for rekeying versus a full lock change?

Rekeying — where we reconfigure the existing lock's pin tumblers to work with a new key — is generally less involved than a complete lock change, which replaces the hardware entirely. The gap in cost reflects the difference in parts and labor time. That said, if your existing lock is worn, damaged, or a low-grade unit that would benefit from an upgrade, a full lock change can be the more practical investment. Our technician will show you both options and the associated pricing on-site so you can decide with full information in hand.

What are some reputable locksmiths in New York I can trust for my apartment?

The most reliable way to vet any locksmith is to look for a team that is insured, arrives in a marked vehicle, identifies themselves before touching your door, and provides a written or clearly stated price before beginning work — not after. At 9th Ave Locksmith NYC, our technicians do all of those things on every call. We are a local New York operation, not a call-center referral service, and we stand behind every job with our own insured technicians. We would never encourage you to run down a list of providers — we simply invite you to call us at (929) 298-6937, ask your questions directly, and judge us by how we answer.

How much will an emergency locksmith cost if I call in the middle of the night?

Emergency locksmith calls outside standard business hours do carry a different rate than mid-afternoon weekday appointments, and that is true of any honest, fully staffed 24/7 service — the cost of keeping trained technicians available at 2 a.m. on a Saturday is real. We will always confirm the exact price before starting, so you are never surprised. What you can count on is that our after-hours rate is stated clearly and agreed upon before a single tool comes out. Transparency is non-negotiable for us.

How much does an emergency locksmith cost near me in New York for a mortise lock rekey?

For a mortise lock specifically, the cost reflects that these assemblies are more mechanically complex than a standard cylindrical lock — the cylinder must be extracted correctly, repinned to your new key cuts, and reseated without damaging the lock body or the door. Travel distance within NYC also plays a role. Our technicians carry mortise lock tools and a broad range of cylinder blanks on the vehicle, which means we can complete most mortise lock rekeys in one visit. Call (929) 298-6937 for a same-day assessment and an on-site price before we begin.

Can I rekey my apartment lock myself, and is that a good idea in New York City?

Rekey kits exist for some common consumer-grade lock brands, but they require you to correctly disassemble the lock, swap pin stacks to match a new key's cut depths, and reassemble without misaligning the springs — a mistake that can leave the lock inoperable or, worse, appearing to work while being easy to manipulate. For a standard cylindrical lock in good condition, a skilled DIYer can attempt it. For a mortise lock, a double-cylinder deadbolt, or any lock that shows wear or damage, the margin for error is significant. In a New York apartment where your front door is your primary security barrier, a professional rekey done correctly the first time is the safer call. Our technicians are on-call 24 hours a day precisely for situations where getting it right matters more than saving an hour.

Locked out or need a lock fixed? We are on the way.

(929) 298-6937Get a fast quote