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The 10 Most Terrifying Things About Repair Patio Door Lock
How to Repair a Bad Patio Door Lock

A safe patio door is an essential part of home security. If it becomes difficult to lock, it could be frustrating.

In many cases, a stubborn lock is the result of an incorrect alignment or simply wear and tear. Lubricating the lock or adjusting its position may help restore its function. If these methods of troubleshooting fail, you may replace the mortise lock and handle.

Clean and Lubricate

A door lock can become hard to open and close due to dirt, dust and grime. Regular cleaning and lubrication will help prevent your security device becoming stiff or stuck. This will save you money on repair costs and will extend the lifespan of your door.

The first step is to clean your lock the cylinder. Use WD-40 or another penetrating spray to do this. Spray a small amount of it into the keyhole and then move the key into and out to distribute the oil. Avoid using household solvents or other oils that could damage your locks. Also, make sure you spray some on the key itself.

After your lock cylinder is clean and lubricated, it's time to apply. You can use an oil spray made of silicone or a dry lubricant like graphite powder. patio door repair is a long-lasting lubricant that doesn't attract dust unlike liquid fluids. It's a great choice for locking lubrication. Silicone sprays are water resistant and can withstand both moist and freezing temperatures, however it may require multiple coats to work effectively.

You can also apply de-icer spray specifically made for cold weather. It will break up ice and frost on the mechanism of your lock. This will enable you to unlock your lock and lock it more easily.

The climate will determine how often you need to belubricating locks. The location of your door will affect its performance. A coastal location can expose it to salty air, which could cause corrosion. It is recommended to lubricate locks at least twice each year, or more often in areas with harsh weather conditions. Lubricating your locks will save you money on repairs and ensure that your patio door continues to function as it should for many the years to come.

Reposition the Lock Cylinder

If your patio door lock isn't operating properly, it could be that one or more parts are damaged or misaligned. Regular inspections and prompt repair of a faulty lock on your patio door could stop further damage and increase the security of your doors. To fix a locked or non-locked patio door, tighten loose screws or adjust the lock mechanism, or replace the lock cylinder.

Begin by looking at the exterior and interior of the lock to see whether there are any indications of damage or misalignment. Patio door locks may expand or contract depending on the weather, and they may even shift over time. This slight movement could cause the locking mechanism to misalign and cause issues when closing or opening the door.

Next, examine the lock cylinder for obstructions in the keyway hole. If the lock is corroded or blocked, the cylinder might be difficult to open and may cause damage to the latch springs, cam, or lock pins. If the cylinder doesn't fit easily, you can get rid of any obstructions by using a pair of tweezers and a picklock. If the issue continues then you'll need to remove the cylinder and disassemble it to find the source of the obstruction.

If the lock cylinder hasn't been screwed into the lock body you can loosen it by removing the screw that is flat inside the faceplate of the cylinder. This screw will allow you rotate the cylinder, and may even help restore alignment.

Look for an elongated tab that moves with the key. It is usually close to the end. This tiny clip, referred to as a "release tab" is what keeps the cylinder from sliding into the body of the lock. This tab can be removed using a standard key to allow the cylinder to be removed, then returned.

If the lock cylinder has become stuck it is possible to restore alignment by rotating the cylinder until the latch bolt engages the strike plate. The knob or handle may then be pushed and withdrawn. Once you've restored the proper alignment, put back together the lock and test its functionality. If your patio door lock is difficult to use, it's a sign that a different component, such as the latch or latch spring is damaged or worn and will require replacement.

Lock the Screws

Over time, regular use as well as cold and hot weather dust, dirt and even dirt can cause damage to patio door locks. If not properly maintained, these delicate parts can wear down and cause your door to fail to lock properly. Fortunately, most lock issues are easily fixable by following a few easy maintenance steps.


You should first clean the lock mechanism. Use a dampened cloth to remove any dirt or dust that might be found. Then dry the parts thoroughly. After cleaning, a small amount of silicone-based lubricant will help keep the moving parts operating smoothly and efficiently. Avoid lubricants with oil bases since they could attract dust and debris, which can cause further problems.

If your patio door is equipped with a security footlock, ensure that the footlock is aligned correctly with the strike plate. In the majority of instances, this will require changing the screws that attach the foot lock to the frame of your patio door. Remove the screw using a Robertson screwdriver and gently move it upwards or downwards to adjust the foot lock if needed. After the adjustment is completed you can tighten the screw.

When it comes time to repair the handle on a patio door the most frequent issue involves misalignment between the latch and strike plate. This can be caused by the wear and tear of everyday use, or it could simply be due to the fact that the latch is placed higher or lower than it ought to be.

Then, take out the old handle and locate the screws or bolts that are holding it in the place. Keep track of the bolts or screws because you will need them to attach the new handle. Then, remove the old spindle and slide the new one into place on the interior of the door. Be sure that it is in alignment with the holes in both the exterior and interior handle. Once the new spindle has been installed then reinstall the interior and exterior handles to ensure that they are aligned with the bolts or screws that hold them in place.

After you've made the necessary adjustments to your patio door, be sure to test it by locking and closing the door. If everything is in alignment, the door should be able to open and close smoothly, without any additional force. If you're still experiencing difficulty, you might need to move the latch or strike plate or the lock cylinder could be damaged and must be replaced.

Replace the Latch

If your patio door locks don't work, it may be time to replace the latch. Installing a new lock is a fairly simple home improvement project that a majority of homeowners can complete by themselves. Begin by sliding the patio door all the way open and removing the existing lock from the inside of the door. Carefully study how the existing lock is screwed to the door and jamb to discern the kind of lock you'll have to purchase.

Before installing the new latch, loosen the screws that hold the strike plate. This is the portion of the lock that is positioned on the edges of the door's frame. Adjust it either horizontally or in an upward direction to align it with the holes in the latch. After you've adjusted the latch plate, tighten the screws and screw it in place.

Once all the components of your patio door are relocated or replaced, reassemble and secure them according to the instructions given by the manufacturer. After you've completed the process testing the latch. Make sure it fits correctly and is secured when the door is closed. If it does, your patio door lock is now functioning just as it should and is able to give you the security and privacy you've come appreciate from your home's doors.

Patio doors, like other areas of your home, need to be properly aligned to function efficiently. Over time, temperatures and cold weather dirt and debris and other factors can cause the hinges, door frame, and the locking mechanism to shift. The wrongly aligned hinges, door frames and locking mechanisms are similar to trying to insert keys into the wrong keyhole. It doesn't work. By following these simple steps, you can fix a problem that might have seemed unfixable. Give yourself a pat on the back for taking on the job and reclaiming your patio door's closed position! We're sure you won't have any more trouble opening or closing the door from here on out. Best of luck! We are here to help if you need any assistance or have questions.

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