What a Lock Change Costs in NYC, Door by Door in 2026

A lock change in NYC costs three things added together: a service-call fee that depends on the hour, labor priced by the job, and hardware only if the job needs new hardware. For a standard apartment door that lands between $85 and $450 all in, and the spread comes almost entirely from what goes on the door, not from the labor.

This guide prices each kind of lock change separately, because "how much to change locks" has four honest answers depending on whether you are replacing a builder-grade deadbolt, upgrading to a restricted key, adding a smart lock, or only re-pinning what you already own.

What a lock change includes, and what it does not

A lock change means taking old hardware off the door and putting new hardware on. The cylinder, the deadbolt body, the knob or lever set, or all of them are replaced.

That is different from rekeying, which keeps the hardware and changes only which key turns it. Rekeying is cheaper, and for most lost-key situations it is enough. A lock change is the right job when the hardware itself is the problem: worn, damaged, builder-grade, mismatched, or not the lock you want protecting the door.

The bill has the same three parts either way. The first is the service call, published at $65 during business hours (8 a.m. to 6 p.m.), $125 after hours (6 p.m. to 2 a.m.) and $195 late night (2 a.m. to 7 a.m.). The second is labor, priced by the job. The third is parts, added only when the work needs them. A quote that folds all three into one unexplained number is the quote to question, and the post on how honest locksmith pricing is built shows what the breakdown should look like.

What each kind of lock change costs in NYC

These are the ranges we publish for mid-2026. The final number is confirmed on site once the technician sees the actual door.

Job	Typical NYC range	What moves the price
Standard deadbolt or knob replacement	$125 to $450 per opening	Hardware grade, door prep, how many openings
Rekey, for comparison	$85 to $150 per door	Lock count, brand, condition
High-security cylinder install	$225 to $500	Brand, restricted keyway, key cards
Smart lock installation	$275 to $500	Lock model, door type, hub or Wi-Fi setup

The first row is wide on purpose. A basic deadbolt swap and a Mul-T-Lock high-security conversion are not the same job, and a range that hid that would be a range worth ignoring.

A typical apartment door, priced out

Most NYC apartment doors carry two locks: a knob or lever set and a deadbolt. Replacing both with solid mid-grade hardware is the common request, and it lands in the low hundreds once the service call, labor and parts are added.

Rekeying that same door costs less, because the hardware stays. A knob and deadbolt rekey comes to $85 to $150 all in, against a few hundred dollars for new hardware doing the same security job. If your locks are in decent shape and the only problem is a key you cannot account for, rekey instead and keep the difference.

Replacement earns its price in four cases. The cylinder is worn and the key drags. The deadbolt was forced or drilled. The hardware is the cheapest grade sold. Or you want a keyway a hardware-store kiosk cannot copy.

Why hardware grade is most of the bill

The $25 hardware-store cylinder is the weak link on most apartment doors, and the reason is the grade, not the brand name on the box.

ANSI/BHMA grades measure how many hours of cycling, force and abuse a lock survives. Schlage's B500 series is a Grade 2 auxiliary lock with a 1 inch throw, the honest default for an apartment door. The B600 series is Grade 1, in the same family with the same 1 inch throw and a UL 10C fire listing. The jump from Grade 2 to Grade 1 is usually modest in dollars and large in how long the lock keeps working.

Going past that into high-security locks changes the price class. A restricted, patent-protected key blank means copies come only through an authorized dealer, which is the point and also why those cylinders start at $225 each.

NYC rules that shape which lock you can buy

A lock change on a multiple dwelling is not a free-for-all. NYC Administrative Code §27-2043 sets the shape of the lock on a class A dwelling-unit door: a heavy duty deadbolt keyed from the outside, with a thumb-turn on the inside.

That means a double cylinder deadbolt, the kind that needs a key to get out, fails the rule however it is sold. It is also a fire-egress problem, which the post on FDNY door lock requirements explains. If an installer offers you a keyed-both-sides deadbolt for an apartment door, treat that as a reason to look for a different installer.

Rentals add a second layer. Under Multiple Dwelling Law §51-c you may add a small lock of your own, but swapping the owner's primary cylinder is a conversation with the owner. The post on whether a tenant can change the locks walks through exactly where that line sits.

Who pays: you, or the building

If you lost keys, or you want an upgrade, the lock change is yours to pay for. If the lock failed on its own, was defective when you moved in, or was forced during a break-in the building could have prevented, the repair may belong to the owner under §27-2005 of the Administrative Code.

Do not assume either answer. Photograph the lock before it is touched, keep the invoice itemized, and read when a landlord can legally bill you for a lock change before agreeing to pay a charge you did not cause.

How to get an honest quote

Ask for the number in three parts before the technician starts: the service call, the labor, and the hardware with its grade. Ask whether the old hardware is being replaced or rekeyed, because a quote for one can quietly become the other.

Ask what is on the door afterward and how many keys you are getting. A price that includes only one key per cylinder is not the same price as one that includes three. Anyone who will not put the estimate in writing before starting has told you what the final bill will look like.

Four situations, priced the way they usually go

Lost keys, decent locks. You lost a set and the hardware is fine. This is a rekey, which runs $85 to $150 for a knob and a deadbolt all in. New hardware here buys you nothing the rekey did not.

A forced or drilled lock. After a break-in, or a lockout that ended with a drilled cylinder, the damaged piece has to be replaced. On a standard bored deadbolt that is the whole unit, and on a mortise case it is often only the cylinder. This is the replacement end of the $125 to $450 range, and a good moment to move up a grade while the door is open.

A new apartment. If you rent, the lock belongs to the owner, and the usual move is a rekey to end the question of who holds old keys. If you own, you choose: rekey when the hardware is sound, replace it when it is builder grade. The reasoning is in changing locks when you move into an apartment.

A deliberate upgrade. Moving from a Grade 2 to a Grade 1 deadbolt, adding a longer strike, or going to a restricted keyway is a planned job, and planned jobs can be booked in business hours at the $65 service call instead of a late-night $195.

The service call is the cheapest part to control

Labor and hardware are what they are. The service call is the part you move by choosing the hour. Business hours cost $65. After hours, 6 p.m. to 2 a.m., costs $125, which is $60 more. Late night, 2 a.m. to 7 a.m., costs $195, which is $130 more.

On a $300 job, moving the visit from 2 a.m. to a weekday morning saves more than a third of the bill. That only helps when nothing is urgent, but plenty of lock changes are not: a planned upgrade, a landlord-approved change before you move in, a new tenant's rekey. If the door is secure tonight, book tomorrow morning.

What a good installation includes beyond the lock

The strike plate and its screws matter as much as the deadbolt. A deadbolt with a 1 inch throw is only as strong as what holds the strike, and the standard fix is a reinforced strike fastened with long screws that reach the framing. A new lock on a door with a loose, short-screwed strike gets kicked in at the strike.

Ask whether the job includes checking the alignment of the bolt and the strike, testing every key from both sides, and handing over the keys in a count you can account for. These steps take minutes, and skipping them is the reason for the "my new lock sticks" call two weeks later. For a door that needs more than that, the lock installation and repair service covers the door preparation as well.

Frequently Asked Questions

How much does it cost to change the locks on an apartment in NYC? For two standard locks, a knob and a deadbolt, expect roughly $85 to $450 all in, depending on whether you rekey or replace and on the hour of the visit. Rekeying the same door runs $85 to $150.

Is it cheaper to change a lock or rekey it? Rekeying is cheaper when the hardware is sound, since you pay for re-pinning and new keys and not for new parts. A lock change costs more but is the right call when the hardware is worn, damaged or low grade.

Can I buy my own lock and have it installed? Yes. Installation labor on a lock you supply is priced separately from the hardware, and bringing the lock can lower the total. Check that it is a solid grade, because the price of installing a flimsy lock is the same as installing a good one.

Does a lock change cost more at night? The service call does. It is $65 during business hours, $125 from 6 p.m. to 2 a.m. and $195 from 2 a.m. to 7 a.m. Labor and parts are priced the same whatever the hour.

How long does a lock change take? A single cylinder takes minutes. A typical apartment door with a knob and a deadbolt is well under an hour, including testing the keys.