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How to Repair a Bad Patio Door Lock A safe patio door is vital to ensure your home's security. If it is difficult to lock, it could be frustrating. In a lot of instances, a locked that is not working is caused by the wrong alignment or just wear and tear. Lubricating the lock or adjusting its position may help restore its function. If these methods of troubleshooting don't work, you can replace the mortise lock and handle. Clean and Lubricate A door lock may become hard to open and close over time due to dirt, dust and grime. Regular cleaning and lubrication can aid in preventing your security device from becoming stiff or stuck. This will save you money on repair costs and prolong the life of your door. The first step is to clean the lock cylinder. To do this, use a spray bottle of penetrating oil, such as WD-40. Spray a small amount of it into the keyhole, then work the key in and out to distribute the oil. Avoid using household oils or other solvents which could harm your locks, and make sure you spray some on the key itself. Once your lock cylinder is clean, it's time to lubricate. You can use a silicone spray or a dry lubricant, such as graphite powder. Graphite powder is long-lasting and doesn't attract dust as liquid lubricants do, so it's a great choice for lubricating sticky locks. Silicone sprays are able to be able to withstand temperatures that are below freezing and are resistant to water. However, they may need multiple coats in order to be effective. You can also apply a de-icer spray, which is specifically designed for cold weather and can loosen ice and frost from the lock mechanism. A couple of sprays will allow your lock unlock and then lock again easily. The climate will determine the frequency at which you should belubricating locks. A location with a coastline will expose your door to salty air and cause corrosion, and temperature variations can impact how well your lock works. It is recommended that you regularly lubricate your locks at least once a year or more often in areas with harsh weather conditions. Lubricating your patio door locks can help save the cost of repairs and ensure that it continues to work properly for a long time. Reposition the Lock Cylinder If your patio door lock isn't working correctly, it could indicate that one or more parts are damaged or misaligned. Regular inspections and prompt repair of a faulty lock on your patio door will prevent further damage and ensure the security of your doors. To fix a locked or unlocked patio door, tighten loose screws or adjust the lock mechanism or replace the lock cylinder. Start by checking the exterior and the interior of the lock to see if there are any signs of damage or misalignment. The majority of patio door locks expand and contract during hot or cold weather and can shift slightly over time. This slight shift can cause the locking mechanism to not align properly and cause problems when opening or closing the patio door. Examine the keyway hole in the lock cylinder. An obstructed or corroded lock cylinder is difficult to open and could eventually cause damage to the pins of the lock, cams or latch springs. If the cylinder is difficult to insert, you might be able to dislodge any obstruction using a pair of tweezers, or a picklock. If the issue continues, you may have to remove the cylinder in order to locate the cause. If the lock cylinder hasn't been secured to the lock body and is loose, it can be loosened by unscrewing the flat screw on the faceplate of the cylinder. This screw will allow you to rotate the cylinder and may even help restore the alignment. Check the cylinder for a tiny tab that can move up and down using the key, generally towards the end. This little clip, also known as a “release tab” is what keeps the cylinder from sliding all the way into the lock body. A standard key can move this tab back to release the cylinder and allow it to be removed and reinserted. If your lock cylinder is stuck, you might be able to restore the proper alignment by turning it until the latch bolt connects with the strike plate and the handle or knob can be pulled in and out. Once you've restored the proper alignment, put back together the lock and test its functioning. If your patio door lock isn't working, it is likely that a different component, such as the latch or latch spring must be replaced. Make sure you tighten the Screws Patio door locks can be damaged by frequent use, extremes of temperature dust and dirt. Unless properly cared for these delicate components can get worn out and cause your door to fail to lock properly. Most lock problems are easily fixed with a few simple steps. You should first clean the lock mechanism. Use a dampened cloth to clean any dirt or dust that may be present. Then, dry the components thoroughly. After cleaning, a small amount silicone-based lubricant can keep the moving components functioning smoothly and efficiently. Avoid lubricants with oil bases, however they could attract dust and debris that can lead to further problems. Then, if your patio door is equipped with a foot lock that is secure be sure that the foot lock is properly aligned with the strike plate. In most cases, this will require adjustment of the screws that hold the foot lock to the patio door frame. Loosen the screw using a Robertson screwdriver and gently push it upwards or downwards to adjust the foot lock as needed. After the adjustment is completed, tighten the screw securely. When it comes to repairing the handle on a patio door, the most common problem is misalignment of the latch and strike plate. This can be caused by wear and tear, or the latch could be set higher or below what it is supposed to be. Then, remove the handle that was previously used and locate the bolts or screws that hold it in the first place. Make sure to keep track of these since you will need them when installing the new handle. Remove the old spindle and slide the new one in place on the inside of the door. Make sure that it is aligned properly with the holes in both the interior and exterior handle. Reinstall the exterior and interior handles after the spindle has been installed. Make sure that they are aligned correctly with the screws or bolts that hold them in place. After patio door repairs near me made the necessary adjustments to your patio door, be sure to test it by closing and locking the door. If the door is properly aligned, it will open and shut without needing any additional force. If you're still experiencing difficulty, you might need to reposition the latch or strike plate or the lock cylinder may 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. Most homeowners can change a lock themselves. Start by sliding the patio doors all the way out and unscrewing your existing lock on the interior of the door. Take note of how the current lock is screwed to the door and the jamb to get a sense for what kind of lock you'll have to purchase. Before installing the new latch, loosen the screws that secure the strike plate. This is the portion of the lock that is positioned on the outside of the door's frame. Adjust it horizontally or in an upward direction to align it with holes in the latch. After you've repositioned the latch plate you can tighten the screws, then fix it with screws. After all components are repositioned or modified, assemble and secure the patio door as instructed by the manufacturer. Once you're finished checking the latch. Make sure it fits correctly and that it is able to latch when the door is closed. If it does, your patio door lock has been installed correctly and is able to provide the security and privacy you've come to expect from. Like other areas of your home should be properly aligned to function effectively. Over time, temperature, cold, dirt, and debris can cause hinges and door frame to shift. If these components are not aligned it's like trying to insert keys into the wrong keyhole it won't work. It is possible to fix the issue that seemed to be impossible by following these simple steps. Give yourself a pat on the back for taking on the task and reclaiming the patio door's closed position! We bet that you won't experience any problems opening or closing your patio door again. Good luck! 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