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Door Lock Repair - How to Fix Common Problems

If a lock doesn't latch properly is a clear indication that it's in need of being repaired. The testers at CR mark the area where the latch touches the strike plate with lipstick. In tightening the hinge screws can fix the problem.

Spraying a dry lubricant like powdered graphite or WD-40 on the lock's cylinder may also help.

Check the Latch

The latch is the bolt that extends into the door frame to secure the lock when it is pulled back by the knob or handle. The most popular options for security are deadbolts and positively locking latches. If the latch doesn't close or latch correctly it could be due to a misalignment between the latch and strike plate within the door frame.

The most common reason is hinges that have become loose, Door Lock Repair and they tend to sag over time and Door Lock Repair cause the latch to be unable to reach the strike plate. To test this, perform the test of lipstick. Apply some lipstick to the edge of the latch and stick the strip of masking tape to the strike plate. Close the door, handles and you'll be able to see where the latch touches the plate. This will help you determine if the contact is too high or too low for proper operation.

You'll require the replacement of a strike plate in the event that the latch is more than 1/8" too high or low. This is a simple task that is usually accomplished without removing the doors. You'll need an extension file to increase the size of your strike hole in the plate. The best type of file is a half-round, as it matches the curve of the strike hole in the plate.

After shifting the strike plate you will need to tighten screws that secure it to the door lock repair's frame. This is enough to get your door to latch and close correctly. If this does not work tighten the hinge screws on either side of the door and see if that helps.

If the latch is out of alignment after the lubrication process, you'll need take more drastic steps. You can try taking off the strike plate and using a chisel with a sharp edge to increase the size of the mortise on the strike plate which allows you to move the strike upwards or downwards. You can also use a steel filing to reshape your strike plate to fit better into the mortise. This is an option you might want to consider in the event that your vehicle has a lot of bumps and dips along the highway and you're worried that it may come off during travel.

Check the Keyway

If your lock is not working properly, you could be leaving your property vulnerable to burglars. Certain door lock issues can be resolved without the help of an expert. This includes a lock that isn't turning. If you can identify a problem, you are more likely to be able to solve it yourself.

If your key isn't sliding in or turning easily It could be having rough areas that need to be sanded off. You can hire a locksmith to do it for you or do it yourself. Move the key around until you locate the area that is causing friction. If you notice any of these, file the rough spots with a fine metal file.

A locked bolt or bolt that is jammed or latch is another frequent problem. It can be caused by debris or a damaged key that has lodged itself in the mechanism. You may try using a pin or needle to clear the debris, but it is recommended to call an expert locksmith for a more thorough examination and removal of the damaged piece.

A deadbolt that won't stay extended through the strike plate may be an indication of a defective lock. Over time, the screws that hold the deadbolt in place may become loose and cause it shift. This can make your home more vulnerable to burglars. If the deadbolt is still shifting, you may need to upgrade the hardware.

If you're having problems with an cylinder lock that does not turn when you press the key, it could be because the key cylinder is stuck. If this is the case, make use of a lubricant in order to loosen it up. You could also use a dry lubricant, graphite spray, or WD-40 to lubricate your key cylinder and get rid of any buildup. These products can be stored in a handy bottle and used periodically to keep your locks in good condition. A locking system that is lubricated will last longer than a non-lubricated one.

Check the Hinges

If the door lock cylinder turns easily when the door is opened but won't stay locked when you close it, loose hinges are often to the blame. This issue can be easily fixed. To fix the issue fix it, tighten all the screws on the hinges. If the problem persists you might try removing or adding the hinge's shims' to alter the alignment. These plates made of small metal are available at hardware stores or on the internet.

You can also smooth the edges of the hinge mortises, which are the slots that hold the hinges to help them sit flush with the frame. Another common cause of trouble locking is that the bolt for the latch may be too high or low in the strike plate. To find out this, put a little lipstick on the latch, then put a strip of masking tape on the strike plate. When you shut the front door, the lipstick will stain any area of the tape touches. This will show whether the latch is above or below the hole.

Finally, if the latch isn't engaging properly with the strike plate it could be due to a buildup of dirt and grime. This buildup can be eliminated by soaking a q-tip in graphite or silicone spray.

If the problem persists even after lubricant is applied, it could be that the lock cylinder is seized and needs to be replaced. This is a job for an expert, but it's not that difficult for anyone who is familiar with basic home repairs. If you're replacing the lock's cylinders, make sure that they've been tested and rated BHMA approved to avoid any problems with fit or finish.

The hardware for the door lock could be unprofessional or poorly made. This type of lock might require more maintenance and will last longer than a lock of a higher quality. Upgrade to a higher-quality lock will usually resolve this problem. To ensure that your lock will last for a long time, opt for a lock that has an endurance rating of B or higher.

Check the Strike Plate

A door lock repair latch that doesn't reach the strike plate may cause a range of problems such as blocking the door from closing and latching properly to making it difficult to open. It's not as difficult to fix as you think. Sagging doors, gravity, and even foundation movement can lead to a misalignment of the latch and the strike plate. The good news is that simple adjustments are usually enough to fix the problem.

If tightening the hinges and lubricating the keyway doesn't solve the problem the strike plate could need to be moved to a different position in order to align with the latch. To do this, first remove the strike plate and mark the area where the latch makes contact with it. You can use a caulk, lipstick or a strip of masking tape that will stain as you close the door to mark this location. If the mark is below the strike plate hole, it is a sign that the latch is striking the plate too high and a lower strike plate position will solve the problem. If the mark is above the strike plate hole, you can move the strike plate up bit.

When you've determined which direction the strike plate must be adjusted, remove it from the frame. keep the screws in a safe location so that you can replace them later. It is also necessary to lubricate keyway of the strike plate to ensure that it moves smoothly.

You can apply chalk, paint or lipstick to the latch. You can do this with lipstick, paint, or chalk. After closing the door, open it to observe where the mark was left on the latch or masking tape. If the mark is below the strikeplate, it indicates that the latch is striking the strikeplate too low. A higher strikeplate position will solve the problem.

To adjust the strike plate, remove it from the mortise. Then using a sharp knife, chisel, or hammer, make the plate wider so that it can be moved upwards or downwards to match the position of the latch. After the strike plate has been moved, check the door to ensure it closes and latches easily. After you've completed the adjustments, you'll have to reconnect the strikeplate to the door's frame and fill any old screwholes or gaps with woodfill that is in line with the rest of the frame.