How to Fix a Deadbolt Lock (2024)

The deadbolt is the first line of defense in home and office security. Whether you are a homeowner, contractor, or business owner, a functioning door lock is vital for a safe, secure building. Malfunctioning deadbolts can bring frustration at the least and exposure to safety risks at the worst. For a resource to troubleshoot deadbolt repair, look no further than this guide on how to fix a deadbolt lock.

In This Article

1. How to Fix a Sticky or Jammed Deadbolt Lock
2. How to Fix a Loose Deadbolt Lock
3. How to Fix a Misaligned Deadbolt Lock
4. How to Fix a Turning Cylinder in a Deadbolt Lock
5. Other Common Deadbolt Repairs
6. Know When to Replace a Deadbolt Lock
Maintain Security with Door Locks Direct

1. How to Fix a Sticky or Jammed Deadbolt Lock

One of the most common deadbolt issues is one that sticks or is difficult to turn. This is often due to a buildup of rust or grime in the components, preventing them from functioning easily.

Repair your deadbolt with a dose of WD-40 (or a similar product). This will loosen dirt and rust and provide lubrication. Apply a few sprays on the deadbolt itself, then rotate the thumb turn repeatedly. This should lubricate the internal components and get your deadbolt working more easily. For stubborn cases, remove the faceplate and thumb turn assembly (or key cylinder) to gain better access.

This strategy also works if you need to know how to fix a deadbolt that won’t turn with the key, since the buildup of debris can also jam the key cylinder. Spray an appropriate lubricant, like a dry lubricant, graphite spray, silicone-based lubricant, or WD-40 into the keyway, then repeatedly insert the key to lubricate the components.

2. How to Fix a Loose Deadbolt Lock

A deadbolt is assembled and held in place by a number of screws. Some of these screws may loosen over time, causing the deadbolt to shift and become misaligned with the strike plate. Misalignment prevents the deadbolt from extending fully into the strike plate, leaving your door vulnerable to unwanted entry.

This problem requires only a screwdriver or two to resolve. Depending on which screws are at the root of the issue, you may need to remove the thumb turn assembly or other external parts to access and tighten the set screws. Thoroughly check and tighten all screws to realign your deadbolt.

3. How to Fix a Misaligned Deadbolt Lock

In some cases, misalignment occurs in the absence of a loose deadbolt. For example, when the strike plate doesn’t match the deadbolt, is improperly installed, or when doors and door frames adjust to climate shifts and no longer line up correctly.

First, check your door to see if it is warped or crooked. One clear indication is if the door snags against the door jamb when you open and close it. Adjust the screws in the hinges to fine-tune your door’s alignment. If it isn’t warped or misaligned, you likely need to modify or reposition the strike plate. This may involve filing the plate opening and expanding or drilling new holes in the door frame to allow full deadbolt extension.

4. How to Fix a Turning Cylinder in a Deadbolt Lock

If you insert your key into the cylinder and the entire mechanism turns, you might be dealing with another problem with the set screws. They may be excessively loose or broken.

Disassemble your lock to identify which screws are failing. Depending on the specific type of lock, this can be very simple – or it can mean digging deeper into your lock components and accessing multiple screws to get to the root of the issue. Tighten the problematic screws or replace them to restore the lock’s function.

5. Other Common Deadbolt Repairs

Here are a few additional issues that may prevent your deadbolt lock from functioning:

• A frozen lock
• A worn key
• A key fragment in the lock

If you’re wondering how to fix these deadbolt lock issues, follow these steps:

1. To defrost a frozen lock, apply WD-40 or some hand sanitizer to the stem of your key, then insert it into the cylinder. Make sure to work gently and avoid breaking the key off inside the lock.
2. If your key’s teeth are worn down and no longer unlock the deadbolt, have a new key made at a hardware or home improvement store.
3. A key broken off inside your lock is slightly more complicated, but it is possible to DIY with the right tools. Carefully pry the broken piece out with a flathead screwdriver, needle nose pliers, or another slender tool. Or, remove the lock cylinder and push the blockage out from the opposite end. Take care not to damage the lock or break the key fragment into smaller pieces.

6. Know When to Replace a Deadbolt Lock

Knowing how to fix a deadbolt lock can save you a lot of time and frustration, but there are times when know-how and a can-do attitude are not enough. Some deadbolt problems are beyond repair, requiring the replacement of the entire apparatus. Here are some instances in which you may need a new deadbolt lock:

• You no longer have the keys
• The deadbolt is severely rusted
• Parts of the lock are damaged or broken
• The tailpieces are bent

Maintain Security with Door Locks Direct

Ensuring that your deadbolts are functioning is an irreplaceable step to securing your home or business. Use this guide on how to fixdeadbolt locks to keep them working smoothly and maintain your home security. For professional guidance on deadbolt repair, contact the experts at Door Locks Direct. With over a decade of experience in every type of deadbolt, lock, and door hardware solution, we are ready and eager to answer all your door-related questions. Contact our specialists for all your door lock needs!

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