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How to Repair a Bad Patio Door Lock

A safe patio door is vital for home security. When yours becomes difficult to lock, it can be a nightmare.

In most instances, a lock that is difficult to open is caused by an incorrect alignment or simply wear and tear. Lubricating the lock or adjusting its position can help restore its function. If these troubleshooting techniques aren't working, you can replace both the mortise as well as the handle.

Clean and Lubricate

A door lock may become hard to open and close over time because of dust, dirt and grime. A regular cleaning and lubrication schedule can stop your security device from becoming stiff or stuck, thereby saving you money on repairs and allowing your door to enjoy its full potential.

The first step is to clean your lock cylinder. Use WD-40 or another penetrating spray to accomplish this. Spray a small amount of oil into the keyhole, and then turn the key to spread the oil. Do not use household oil or other solvents that can harm your locks. Spray a little on the key.

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 has a long life and doesn't attract dust like liquid lubricants do, so it's a great choice for lubricating sticky locks. Silicone sprays are water resistant and can withstand moist and freezing temperatures, however it may require several coats to be effective.

You can also apply sprays to de-icer your lock that is made for cold weather and will lift frost and ice off the lock mechanism. A few coats of this will aid your lock unlock and then lock more easily.

How often you have to oil your locks will be contingent on the environmental conditions. A coastal location exposes your door to salty air and lead to corrosion. Temperature fluctuations can also impact the efficiency of your lock. The standard rule of thumb is to lubricate your locks every two years and more frequently if you live in an area that experiences extreme weather conditions. Lubricating your locks will save you money on repairs and ensure that your patio door will perform as it should for years to come.

Reposition the Lock Cylinder

If your patio screen door repair door lock isn't functioning correctly, it could indicate that one or more components are damaged or misaligned. Regular inspections and timely repairs of a broken lock on your patio door will prevent further damage and ensure the security of your doors. To fix a locked or unlocked patio door, you can tighten loose screws, adjust the mechanism of the lock, or replace the lock cylinder.

Start by checking the exterior and the inside of the lock to see whether there are any indications of damage or misalignment. Locks for patio doors can expand or contract in response to the weather, and may even shift over time. This slight movement could cause the locking mechanism to become misaligned and cause problems when opening or closing the door.

Then, check the lock cylinder for obstructions within the keyway hole. A corroded or obstructed lock cylinder may be difficult to access, and can cause damage to the cam, latch springs or lock pins. If the cylinder is difficult to insert, you might be able of removing any obstructions using a pair of tweezers, or a picklock. If the issue continues then you'll need to remove the cylinder and disassemble it in order to identify the root of the problem.

If the lock cylinder isn't screwed into the lock body, you can loosen it by unscrewing an elongated screw within the cylinder faceplate. Unscrewing this screw will allow you to rotate the cylinder and could help to restore alignment.

Look over the cylinder for a small tab that moves upwards and downwards with the key, generally towards the very end. This small clip, also called a "release Tab" will stop the cylinder from sliding into the lock body in the entire way. This tab can be removed by using a standard key. This will allow the cylinder to be taken out and then it can be inserted.

If your lock cylinder is stuck, you may be able to restore proper alignment by turning it until the latch bolt is in contact with the strike plate and the handle or knob can be pulled in and out. Reassemble the lock once you have restored alignment. Check it out for its functionality. If the lock on your patio door isn't functioning properly it's likely that an additional component such as the latch spring or latch requires replacement.

Tighten the Screws

Over time, the use of regular temperatures, cold and hot weather, dirt, and dust can take their toll on patio door locks. Unless properly cared for these delicate components can wear down and cause your door to fail to lock properly. Most lock problems are easily solved with just a few steps.

The first thing you need to do is clean the lock mechanism. Make use of a damp cloth to get rid of any dust or dirt that may be present, and then dry the parts thoroughly. After cleaning the components, a small amount silicone-based lubricant will help keep the moving parts operating efficiently and smoothly. Avoid lubricants with oil bases, they could attract dust and debris which could cause issues.

If your patio door is equipped with a foot lock that is secure be sure that the foot lock is aligned with the strike plate. In most cases, this will only require you to adjust the screws that secure your foot lock to the frame of the patio door. To adjust the footlock simply loosen the screw using the help of a Robertson screwdriver, and then gently push it up or down. After the adjustment has been completed you can tighten the screw.

The most common problem in the repair patio Door lock of patio door handles is the misalignment of the strike plate and latch. This could be due to everyday wear and tear, or it could simply be that the latch is positioned higher or lower than it should be.

Then, remove the old handle and locate the bolts or screws that hold it in the place. Keep in mind the bolts or screws because you will need them to install the new handle. Remove the spindle that was in use and slide the new one in place on the interior of the door. Make sure that it is in alignment with the holes in both the interior and exterior handle. Reinstall the interior and external handles after the spindle has been installed. Make sure they are aligned correctly with the screws or bolts to secure them.

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

Replace the Latch

If your patio door repair near me door locks still don't work, it may be time to replace the latch. Most homeowners can change locks themselves. Begin by sliding the patio doors repair near me doors completely out and unscrewing your existing lock on the interior of the door. Carefully study how the existing lock is screwed into both the door and the door jamb so that you can determine the kind of lock you'll need purchase.

Before you install the new latch take off the screws that secure the strike plate (the part of the lock that's mounted on the outside of the door frame) and then adjust it horizontally or vertically to align it with the hole in the jamb of the door. After you've repositioned your strike plate, secure it in its place and tighten the screws.

After all the components have been moved or adjusted, assemble and secure the patio door repair service near me door according to the instructions of the manufacturer. After you're done, test the latch to ensure that it is in place and fits the latch hasp when the door is closed. If it does, then your patio door lock has been installed correctly and is ready to provide the security and privacy that you've come to anticipate from.

Patio doors, like other areas of your home should be aligned properly to work efficiently. Over time, cold and hot weather dirt and debris and other factors can cause the hinges, door frame and the locking mechanism to shift. Misaligned hinges, door frames and locking mechanisms are like trying to put keys in the wrong keyhole. It's not working. By following these easy steps, you can solve an issue that seemed unfixable. So, give yourself an award for tackling this challenge and regaining the door that was locked! We'll bet you won't have any issues opening or closing the door from now on. Have fun! We're here if you have any questions or concerns.