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Deadlock is a term used in the burglar alarm industry to describe a type of lock that cannot be opened without a key, even if the lock is picked or manipulated. Deadlocks are commonly used in residential and commercial security systems to provide an additional layer of protection against forced entry. They are typically installed on doors and windows and can be operated manually or electronically.

In a residential setting, deadlocks are often used on exterior doors to prevent intruders from gaining access to the home. They are also commonly used on sliding glass doors and windows to prevent them from being forced open. In a commercial setting, deadlocks are often used on doors that lead to high-security areas, such as server rooms or cash handling areas.

Deadlocks come in a variety of styles and sizes to fit different types of doors and windows. Some deadlocks are designed to be installed on the surface of the door or window, while others are designed to be installed inside the door or window frame. Electronic deadlocks can be controlled remotely, allowing for easy access control and monitoring.

CGSmith is a business and residential security system installation and monitoring company based out of the Milwaukee WI area. As a leading provider of security solutions, CGSmith understands the importance of using high-quality locks and deadlocks to protect homes and businesses from intruders. They offer a wide range of security products and services, including deadlocks, to help their clients feel safe and secure.

If you are interested in learning more about deadlocks and how they can be used to enhance your home or business security, CGSmith is here to help. You can visit their Contact Us page on the site to get in touch with their team of security experts. They will be happy to answer any questions you may have and provide you with the information you need to make an informed decision about your security needs. With CGSmith, you can rest assured that your home or business is protected by the best security solutions available.


1. What is a deadlock in the context of burglar alarms?

A deadlock is a type of lock that can only be opened with a key, even from the inside. It is commonly used in conjunction with burglar alarms to provide an extra layer of security to a property.

2. How does a deadlock work with a burglar alarm system?

When a burglar alarm is triggered, the deadlock prevents the intruder from easily exiting the property through the door. This can buy time for the authorities to arrive and apprehend the intruder.

3. Are deadlocks effective in preventing burglaries?

Deadlocks can be effective in preventing burglaries, as they make it more difficult for intruders to enter and exit a property. However, it is important to note that no security measure is foolproof, and it is always best to use multiple layers of security to protect your property.

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