How to Install a Door Chain for Added Security

A door chain is a simple yet effective security device that can help prevent unauthorized entry into your home. Installing a door chain is a quick and easy DIY project that can be completed in just a few steps. In this article, we will provide a step-by-step guide on how to install a door chain.

List of required tools

Before beginning the installation process, you will need the following tools:

  • Drill
  • Drill bit
  • Screwdriver
  • Measuring tape
  • Pencil
  • Masking tape
  • Hammer (optional)


Check for compatibility

Before purchasing a door chain, ensure that it is compatible with your door and door frame. Measure the thickness of your door and make sure the door chain is designed to fit doors of that thickness.

Choose the right spot

Choose a spot on your door and door frame where the door chain will be most effective. Typically, this is near the middle of the door, at a height that is comfortable for you to reach.

Clean the area

Clean the area where the door chain will be installed, removing any debris or dirt.

Measure and mark the spot

Use your measuring tape and pencil to mark the spot where the door chain will be installed. Use masking tape to mark the drill bit to ensure you do not drill too deep.


Drill the holes

Use your drill to make a pilot hole in the center of the marked spot on the door. Use the appropriate sized drill bit to drill a hole in the door. Repeat this process on the door frame, ensuring that the holes line up.

Attach the chain and mounting plate

Insert the mounting plate into the hole on the door frame and attach it using screws and your screwdriver. Attach the chain to the mounting plate and the door using the screws provided. Use your screwdriver to tighten the screws.

Test the door chain

Open the door slightly and secure the chain to the mounting plate. Try to force the door open from the outside to ensure that the door chain is working properly.


If the door chain is not working properly, check to make sure that the screws are tightened securely and that the chain is properly attached to the mounting plate and door. If the issue persists, you may need to replace the door chain.

If the door chain is not working properly, do not rely on it for security. Contact a professional locksmith to install a more secure locking system.


Installing a door chain is a quick and easy DIY project that can provide added security to your home. By following these simple steps, you can install a door chain in just a few minutes.

Door chains provide an additional level of security, but they should not be relied on as the sole source of security for your home. Always use other security measures, such as deadbolts and security cameras, to ensure the safety of your home.

I hope this article has provided you with the information you need to install a door chain for added security. By taking these simple steps, you can help protect your home and loved ones from potential intruders.

Remember to always follow proper safety protocols when installing any security device and to seek professional help if needed. Stay safe and secure!

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