Lock Installation

Lock Installation Services – New York City, Westchester County, Bronx NY, and surrounding areas

Momo Local Locksmith is a name you can trust for whatever type of lock installation you need.

We offer Lock Installation a full range of locksmith services, including commercial and residential services, lock installation, repair, or maintenance. Because we are a New York company serving New York City and surrounding areas, we have experience with a wide range of locks and have done extensive work in private houses, apartments buildings, brownstones, storefronts, and larger corporations. Below is a sampling of the types of locks we install and repair.

Entry Knob Lock

This is a standard cylindrical entry lock. It is locked and unlocked by a button on the inside, and key operated from the outside. There are two types of entry knobs: those that are inoperable from the inside until the button is turned or released and those that are “panic-proof” and allow you to exit without operating the button. “Vandal-proof” locks allow the exterior knob to be turned when locked, without withdrawing the latch.

Entry Lever Lock

Lever locks are basically the same as knobs. However, they require much heavier duty return springs to prevent the levers from sagging over time. Entry Lever Lock& quot;Vandal-proof & quot; designs are much more important with levers, as it is easier to apply force to a lever than a knob.

Storeroom Function Locks

Storeroom function knob and lever locks look just like entry locks. However, they have no button on the inside. You can always exit freely, and the exterior is always locked, requiring the use of a key to operate the lock every time. These locks are generally used for secondary entrances and secure areas that need to be locked at all times.

Mortise Locks

Mortise locks are box-like units mounted through the edge of the door, unlike the cylindrical locks described above, which are mounted through circular holes drilled through the door. The mortise design is much older than the cylindrical, but can still be found in older homes. Modern mortise locks are more often found in commercial applications and some security gates.

They are considerably more expensive than cylindrical locks. Modifications are required to switch from mortise to cylindrical locks or vice versa.


The deadlatch is a latch designed with an additional deadlatch plunger. The deadlatch has a specific security function that requires proper installation and alignment with the strike plate. Properly installed, the latch should fall into the strike opening when the door is closed, but the deadlatch plunger should not.


Springlatches are not a recommended form of key entry. This type of latch is easily bypassed with a credit card or other type of shim material or tool.


Deadbolt locks offer the best possible manual lock security. Proper installation is necessary to ensure that the bolt extends freely and fully, because unless fully extended, the lock is not actually engaged

Lock Cylinder

This is a standard pin tumbler lock cylinder. It can be rekeyed and/or masterkeyed. They come in a variety of keyways, which determines the type of key blank used to operate the lock.

Interchangeable Core

Some locks are designed to use interchangeable cores. They are more commonly used in commercial applications. They are usually masterkeyed. Aside from the master key and individual operating key
(also known as the change key), these locks have a control, or core, key that is used to install and remove the core from the lock. The control key must be used to service the lock.

Profile Cylinder

Profile cylinders are more commonly used in Europe, but are increasingly found in the United States. They are most often found in storm and patio door locks. They may be keyed on one or both sides.

Smart Locks

Smart locks or intelligent locks are basically locks that are connected to the internet. These locks serve as an access control system and can be installed at residential and commercial properties easily. These locks have proximity sensors such as NFC or Bluetooth have, and thus, these can unlock any door if approached by an authorized user’s smartphone. It is also possible to lock and unlock these locks remotely.

With smart locks, you will no longer feel restricted by door keys because your mobile will act as a key as well.


Accessibility Toolbar