How to Fix a Broken Door Lock

Door locks are essential for security and peace of mind, but when they break, they can cause a lot of frustration. If you’re dealing with a broken door lock, don’t worry – there are several ways to fix it. This blog post will show you how to fix a broken door lock using a few simple tools. We’ll also provide tips on preventing your door lock from breaking in the first place. So whether your door lock is jammed or completely broken, we have you covered! Keep reading for everything you need to know about fixing a broken door lock.

How to Fix a Broken Door Lock

Summary: Fixing a broken door lock is possible with these 12 steps. Start by inspecting and lubricating the lock, then cleaning it and removing the doorknob. Take apart the lock, tighten any screws, and replace the doorknob. To finish, repair any damaged strike plates, adjust the latch, fix any wobbly doorknobs, repair stripped screw holes and replaced the lock cylinder.

What Causes Door Locks to Break?

There are a few different reasons why door locks can break. The most common reason is simply wearing and tear. Over time, the lock’s components will start to wear down and break. This is especially true for older locks that haven’t been properly maintained. Another common cause of door lock breakage is forced entry.

If someone tries to forcefully enter your home by kicking in the door or breaking the lock, the lock will likely be damaged beyond repair. There are other, less common causes of door lock breakage as well. For example, it can break down if the lock is exposed to extreme weather conditions. Additionally, if the lock is made of cheap materials, it’s more likely to break.

Why You Should Fix a Broken Door Lock

If your door lock is broken, it’s important to fix it as soon as possible. A broken door lock makes your home more vulnerable to break-ins, as it’s much easier for someone to pick or force open a broken lock. It can also be a safety hazard, as a broken lock may not properly secure the door, allowing it to open unexpectedly. If you have young children, a broken door lock could put them at risk of unsupervised wandering out of the house.

A Complete Guide on How to Fix a Broken Door Lock:

Step 1: Diagnose the Issue with the Door Lock

Before attempting to fix a broken door lock, determine the specific issue that is causing the lock to malfunction. Common issues include a jammed latch, a misaligned strike plate, a broken key in the lock, or worn-out internal components.

Step 2: Gather Necessary Tools and Materials

To fix a broken door lock, you will need various tools and materials, such as:

  • Screwdriver (flathead and Phillips)
  • Pliers or needle-nose pliers
  • Hammer
  • Chisel or wood file
  • Replacement lock or lock parts, as needed
  • Lubricant (graphite or silicone spray)
  • Locksmith pick set (optional)
  • Protective gloves and safety glasses

Step 3: Remove the Door Lock

Using a screwdriver, remove the screws that secure the door lock to the door. This typically includes screws on the interior side of the lock, as well as screws holding the latch in place on the edge of the door. Carefully remove the lock components from the door and set them aside.

Step 4: Inspect and Lubricate the Lock Components

Inspect the lock components for signs of wear, damage, or debris that may be causing the lock to malfunction. Clean any dirt or debris from the components using a clean cloth or compressed air. Apply a lubricant, such as graphite or silicone spray, to the moving parts of the lock to ensure smooth operation.

Step 5: Address Specific Issues with the Lock

Depending on the issue diagnosed in Step 1, perform the necessary repairs to fix the broken door lock:

a. Jammed Latch: If the latch is jammed or sticking, lubricate the latch mechanism and ensure that it moves freely. If the latch is damaged or bent, replace it with a new one.

b. Misaligned Strike Plate: If the strike plate is misaligned, loosen the screws holding the plate in place and adjust the plate’s position until the latch properly engages. Tighten the screws to secure the plate in its new position. If necessary, use a chisel or wood file to enlarge the hole in the strike plate to accommodate the latch.

c. Broken Key in Lock: If a key has broken off in the lock, use pliers, needle-nose pliers, or a locksmith pick set to carefully remove the broken key fragments from the lock cylinder. Lubricate the lock cylinder to ensure smooth operation.

d. Worn-Out Internal Components: If the internal components of the lock are worn out or damaged, replace the necessary parts or install a new lock, as needed.

Step 6: Reassemble and Test the Lock

Once the necessary repairs have been made, reassemble the door lock by placing the components back into their proper positions and securing them with screws. Test the lock to ensure that it operates smoothly and securely. If the lock continues to malfunction, consider replacing the lock entirely.

Step 7: Install a New Door Lock if Necessary

If the broken door lock cannot be repaired, or if the issue persists after attempting repairs, replace the lock with a new one. Choose a lock that is compatible with your door and offers the desired level of security. Follow the manufacturer’s instructions for installing the new lock.

Step 8: Maintain the Door Lock to Prevent Future Issues

To prevent future issues with your door lock, perform regular maintenance, such as:

  • Periodically lubricating the lock components with graphite or silicone spray.
  • Ensuring that the door and its hardware are properly aligned and adjusted.
  • Inspecting the lock for signs of wear or damage and addressing any issues promptly.

By following these steps and using the appropriate tools and techniques, you can successfully fix a broken door lock and restore its function and security. Regular maintenance and prompt attention to any issues will help extend the life of your door lock and ensure that it remains in optimal condition for years to come.

Step 9: Strengthen the Door and Frame for Added Security

In addition to fixing the broken door lock, consider taking additional steps to strengthen your door and frame for improved security. Some measures include:

  • Installing a reinforced strike plate with longer screws to secure it to the door frame.
  • Adding a deadbolt lock for an additional layer of security.
  • Replacing weak or hollow-core doors with solid wood or metal doors.
  • Installing a door reinforcement plate to protect the door from being kicked in.
  • Adding security bars or door braces to prevent forced entry.

Step 10: Consult a Professional Locksmith if Necessary

If you encounter difficulties while attempting to fix a broken door lock, or if you are unsure how to proceed, consult a professional locksmith for assistance. A skilled locksmith can efficiently diagnose and repair door lock issues, as well as provide guidance on maintaining and enhancing your door’s security.

By following these comprehensive steps and seeking professional help when necessary, you can effectively repair a broken door lock and maintain the security and integrity of your home or business. Regular maintenance and attention to detail will help prevent future lock issues and ensure that your door remains secure and functional for years to come.

How Much Does It Cost to Fix a Broken Door Lock?

The cost of repairing a broken door lock will vary depending on the extent of the damage and the type of lock that needs to be repaired. Generally speaking, the cost will range from $50 to $250. However, for more complex repairs, such as replacing an entire lock set, the cost can be as high as $500.

How to Prevent a Broken Door Lock

1. Use a Good Quality Lock

If you want to prevent a broken door lock, it’s important to use a good quality lock. Cheaper locks are more likely to break and will not provide as much security. When choosing a lock, look for one that is made from high-quality materials and has a good reputation.

2. Inspect the Lock Regularly

It’s also a good idea to inspect the lock regularly to make sure that it is in good condition. If you notice any damage, such as stripped screws or a loose doorknob, fix the problem immediately.

Fix the Problem

3. Avoid Excessive Force

When using the lock, be careful not to apply too much force. This can cause the lock to break or become damaged. Excessive force can also damage the door itself. Try to use the lock gently and avoid using it if it feels like it is stuck.

4. Follow the Instructions

When installing or repairing a lock, be sure to follow the instructions carefully. This will help to ensure that the lock is installed correctly and will help to prevent damage.

5. Hire a Professional

If you are unsure about anything, hiring a professional is always best. A professional locksmith will have the experience and knowledge to install or repair your lock properly. Hiring a professional can also save you time and money in the long run.

6. Use the Right Tools

When repairing or installing a lock, be sure to use the right tools. Using the wrong tools can damage the lock or make the repair more difficult. If you are unsure about which tools to use, be sure to consult a professional.

7. Lubricant Regularly

To keep your lock in good condition, be sure to lubricate it regularly. This will help prevent rust and make the lock easier to use. Just a few drops of lubricant can make a big difference. Try to lubricate the lock at least once a year.

8. Store Spare Keys Safely

Keep Your Keys Safely

If you have spare keys, be sure to store them in a safe place. This will help to prevent them from getting lost or stolen. It’s also a good idea to label the keys so that you know which one goes to which lock.

Is It Worth Fixing a Broken Door Lock?

If the damage to the lock is minor, such as a loose doorknob, it is probably worth fixing. However, if the damage is more extensive, such as a broken deadbolt, replacing the entire lock set may be better. Replacing the lock set will ensure your home is secure and prevent future problems.

Frequently Asked Questions

Can a Door Lock Be Repaired?

Doors are one of the most commonly broken pieces of hardware in a home. Unfortunately, many homeowners don’t realize that their door locks can also be repaired. When your door lock becomes damaged or nonfunctioning, you should call a professional locksmith to repair it as soon as possible.

Locksmiths will have the tools and knowledge needed to replace any internal parts within your lock such as tumblers, springs, and keys. They will also be able to diagnose any problems with your latch mechanism or deadbolt if necessary. In some cases, they may even be able to install new security systems like keyless entry technology or sensors.

Call a locksmith today for all of your mechanical locking needs!

What Do You Do When a Door Lock Won’t Open?

If your door lock won’t open, there are a few things you can do to try and fix the issue. One option is to check if the doorknob is turned fully in either direction. If it’s not, then you may need to adjust the lock or re-paint the door. Another possible solution is to try resetting your code by dialing *987 from any telephone while inside of your home.

This will erase all of your personal information and settings, so make sure that you want to do this before hitting send! You should also refer to our article on how to change a locksmith in order for them to correct any issues with your current locking system.

How Much Does It Cost to Fix a Broken Door Lock?

Broken door locks can be a real nuisance. Not only are they a security risk, but they can also be quite expensive to fix. Here are some costs that may apply when fixing a broken door lock:

  1. Door knob or handle replacement – This is the most common type of door lock replacement, and it costs around $50.
  2. Deadbolt or sliding door replacement – This type of lock can also cost around $50.
  3. Key replacement – If your key is lost or damaged, it will likely need to be replaced in order to open the door. This cost can range from $10 to $50.
  4. Door latch replacement – This is usually necessary if the door handle or knob is not working properly. The cost of this repair can range from $50 to $100.
  5. Door strike repair – If the strike (the part of the door that makes contact with the bolt) is damaged, it may need to be replaced in order to open the door properly. This cost can range from $30 to $70.

In total, fixing a broken door lock may cost you between $70 and $140, depending on the type of lock and the other repairs that may be needed along the way. Keep in mind that these costs are just estimates, and may vary depending on your specific situation. If you need help fixing a broken door lock, don’t hesitate to call us at 1-800-922-0274!

Why Would a Lock Stop Work?

When it comes to locks, there are a few different types that can malfunction. The most common type of lock failure is the cylinder stop. This occurs when the pins in the lock get stuck and prevent the mechanism from turning properly. As a result, the door cannot be opened even with your key.

Another type of lock failure is latch Failure were one of the locking mechanisms fails to stay engaged with its neighbors (the mortise and tenon joint). As this happens, entry into or exit from your property becomes difficult or impossible.

In both cases, fixing these problems usually requires replacing either just one part of your lock system or all parts as needed. So if you’re having trouble opening up your home or office, make sure to call a professional for help!


If you are having trouble with a door lock, there is no need to panic. There are many ways to fix a broken door lock without having to call in a professional. In this blog post, we have outlined some ways how to fix a broken door lock that should help you get your door lock working again. Try one of these methods today and get back into your home safely and securely. If you have any questions, write them down in the comments section below, and we’ll get back to you as soon as possible. Thanks for reading!

You May Also Read: How to Fix a Broken Door Knob

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