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Different Types of Door Locks

There are many types of door locks for home use in the Singapore market, and these are ten of them. If you want to know which type is the best for your home, you can speak with an experienced locksmith. He can answer every concern you have in mind, thus enlightening you with your choice.


Deadbolt Lock
This type of lock has such a name because the bolt requires no spring for it to be operated. It works through manual operation with a key or a thumb turn from the inside of a door. There can be single- and double-cylinder deadbolt. The former is operated by locksmith Singapore using a turn button on the inside and a key from the outside, while the latter is operated with a key on both sides.

Dummy Knob
This type of door lock is mainly used for decoration or applications that do not require a latch. Basically it is just a knob and has no latch mechanism to close. Sometimes referred to as dummy trim in Singapore, this type is offered in a wide selection of styles.

Entry Lockset
In this type, a professional locksmith in Singapore uses two knobs that can be locked from the outside and inside. The inside knob is locked by depressing or turning a button, while the outside is unlocked with a key. There are some models that must be locked on both sides using a key, while in other models, only the inside knob can lock or unlock both sides.

This combines a lockset with a deadbolt in which it requires a key to lock or unlock from the outside and usually a pushbutton or thumb turn to unlock from the inside. This type of door lock can be installed by a locksmith as a single- or two-piece unit in Singapore.


Keyless Entry System
This type of door lock is installed by a locksmith Singapore for advanced home security and convenience. Some models have alarm that will sound if wrong code has been entered more than three successive times. There may also be an anti-theft feature placed by a locksmith Singapore that will ensure the same code is never used twice.

Mortise Lock
This consists of two faceplates that include the keyholes and knobs and also a rectangle-shaped box that fits flat into the door’s surface. This type of door lock is used by locksmith on several types of doors—be it residential doors, apartment buildings, and any heavy entrance doors.

Night Latch
This type is installed by a locksmith Singapore on the inner side of a door and has an automatic locking feature. Whenever a door is closed, the latch automatically locks it. This is often used with another type of lock for greater security.

Passage Lockset
This type of door lock in Singapore has two knobs that do not lock, one on each side. In some models, knobs are replaced by levers. This interior lockset is often used by a locksmith in closets and is available in the market in a wide range of styles.

Privacy Lockset
This type is manufactured for privacy, not safety. The interior knob has a locking button, but the exterior knob has no mechanism for keys. During an emergency situation, the door can only be unlocked from the outside by putting in a narrow object through the hole in the exterior knob.


Surface-Mounted Deadbolt
Also referred to as knuckle-lock or vertical deadbolt by locksmith Singapore, this type is installed in Singapore on the surface of the inside of a door. The bolt may be turned with a knob or a key. The bolt slides into a surface-mounted strike instead of sliding into the door frame.