How to Open a Chain Lock From the Outside


When you’re locked out of your house or business and need to be let in quickly but don’t have the key with you, there are a few things you can do. One is to break a window and climb inside. Another option is to call someone who does have access and ask them for help. But if all that fails, there is one more thing: use a chain lock!

How to Open a Chain Lock From the Outside

A chain lock has two ends—one on either side of the door frame—and looks like an oversized version of those old-fashioned bicycle locks we used as kids. It doesn’t require any special skills or tools; insert one end into the deadbolt hole inside the frame (you may have to jiggle it a bit to get it in), and use the other end to pull the other end door open. This article will discuss how to open a chain lock from the outside. So let us get started.

A Detailed Stepwise Guide on How to Open a Chain Lock From the Outside

Step 1:

Look for the locking mechanism and determine which way it opens. There is a small hole on one side of the lock on many chain locks where you insert the key. If there is no hole, look for a small notch on one edge of the lock. This is where the key goes in.

Step 2:

Insert the key into the locking mechanism and turn it clockwise or counterclockwise, depending on how it opens. If it’s stiff, apply pressure while shifting to help loosen it up.

Inserting Key Into Locking Mechanism

Step 3:

Once the key is turned all the way, lift on the shackle to open the lock. If it doesn’t open easily, try turning the key some more until it does.

Step 4:

Close the lock by pushing down the shackle until it clicks into place. If it doesn’t click, the lock isn’t closed properly and could easily be opened by someone else.

Step 5:

Apply lubricant to the keyhole and key every few months to keep them functioning well.

Applying Lubricant Into Keyhole

You can check it to Open Kwikset Lock

Precautions While Opening a Chain Lock From the Outside

  • Open the padlock first and then open the chain lock.
  • To reduce the damage caused by cutting tools to objects such as bicycles and motorbikes, it is best to use a plastic saw blade for opening.
  • Avoid using metal saw blades because they can generate sparks that cause a fire or an explosion. Be sure to keep an open flame (candles and lighters) out of reach of children and make sure that the flammable gas shut-off device has been installed inside your garage.
  • You should also be very careful not to touch bare wires with both hands while working with electric appliances; this could cause electrocution! If you’re still not 100% confident in your ability to safely complete this task, it’s best to leave it to a professional locksmith.

Benefits of Chain Lock

A chain lock is a type of door hardware that has been used for many years, and it remains popular today. It might just be because they’re so easy to install and use without much hassle. The main benefit is that there’s no key required. Instead, you can open them manually by turning the handle, or if you want more security, you can turn the deadbolt into place as well. This gives you an extra bit of added security when leaving your home, such as sleeping at night, spending too long away from home (e.g., work), or while on holiday.

How to Install a Chain Lock?

  • Before installing the chain, measure where you want to place it. Don’t screw in the brackets until you’ve put everything into place.
  • Unpack the hardware and layout all of your pieces. Each lock comes with two brackets, two screws, a hinged bar, and an arm that attaches at one end to the top bracket and the other end to the bottom shelf. Make sure you have all these parts before continuing.
  • Determine whether or not your door opens inward or outward by checking which way it closes now (if it doesn’t close evenly now, then try shutting it while holding down on an interior side). For doors that open inward – drill holes into the door frame for the top and bottom bracket, making sure the holes are at the same height. If the door opens outward – drill holes into the side of the frame (near the hinges) for the top and bottom bracket, making sure they’re also at the same height.
  • Once you’ve determined where to drill your holes, use a drill bit that is slightly smaller than your screws. Be careful not to dig through your door/frame! Drill your holes, and then attach your brackets with the screws that come with your lock.
  • Close your door and check to ensure it shuts evenly now. If it doesn’t, re-open it and adjust the position of your brackets until it does.
  • Now it’s time to add the chain. Open the hinged bar and loop it around the door handle on the inside so that the arm is sticking out. Close the bar so that the component is now in between the two brackets.
  • Tighten the screws on either side of the arm to hold it in place. You’re done! Test your lock by closing and opening your door. A gentle tug on the door should cause the arm to move meaning your chain is in place.
  • If you follow the steps above, installing a chain lock will be quick and easy! However, one important thing to remember when you install your new chain lock is that it needs to be able to move freely for it to work correctly. If not, then this will defeat the purpose of having one in the first place. This is why you need to ensure that there are no obstructions or anything blocking its way before you close your door (i.e., furniture). Doing this ensures that your security system works correctly at all times.
Install Your New Chain Lock

Different Types of Chain Locks

  • Square Shaped: Deter those criminals who want to take your things. This kind of lock is the most common and least expensive.
  • Triangular: The best at preventing theft, but more expensive than square locks.
  • Diamond: For those who value safe and strong security over low price. These locks can not be opened with a “snake” type key, so it is difficult for thieves to pick them open.


I hope this article has offered you all the necessary information on how to open a chain lock from the outside. Thank you and have a nice day!

Check it out also – How to Pick a Trunk Lock

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