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How to Troubleshoot and Repair Patio Door Locks

Keep your patio doors in good condition to safeguard your home from unwanted intruders. However, the elements can cause the doors and their locks to become misaligned or damaged.

If your patio door lock does not work properly it is possible to make basic repairs at home. These steps will address problems with the latch, keyway, and handle.

Check the Lock

Patio doors are often targeted by burglars due to their large amounts of glass and their convenient location within a home. It is important that your locks are working correctly to keep your home safe. There are a few easy ways to repair patio door locks that have stopped functioning.

The first step is to examine the lock to ensure nothing hinders it from locking or latching. If you notice any issues, such as loose screws, rust, or misalignment, these should be addressed immediately. In some cases the slightest adjustment to the direction of the patio sliding door repair door might suffice to resolve the problem.

Dust or debris could cause the lock mechanism not to work properly. Clean your patio door and clean the lock hardware frequently to prevent this. If necessary, you can use mild soap. But, be sure that the lock is dried completely afterward.

In addition, it is a good idea to lubricate the lock regularly. A lot of the moving parts of your uPVC patio door lock are like those of a fine-tuned machine, so they can get stuck and jammed just as any other mechanical device. A graphite pencil, or a tiny amount of lubricant could be used to clean any dirt or debris from the lock cylinder. This will help keep it running smoothly.

The exact dimensions of your patio door lock is also important. This will allow you to find an appropriate lock that is compatible with your existing mechanism. If you are unsure about how to accomplish this, it's best to contact an expert locksmith or tradesperson to get help.

Clean the Lock

Over time, hot and cold weather dust, dirt, and even dust can cause the delicate parts of the door lock to become stuck. These issues could compromise the security of your home. These problems are easy to solve if you know how to do.

Clean your lock prior to making any repairs. Using a damp cloth, remove any stains or debris that may hinder your lock from working correctly. Make use of hot soapy water and a little grit to clean the mechanism of your lock. Dry your locks completely after cleaning them.

Most patio doors use a mortise lock that is secure, however, it is susceptible to issues in the course of time. If your uPVC lock has become stuck the first step is to clean and lubricate it. Start by cleaning the latch with hot soapy water. Then, take off the screws that hold the body of the latch in the position. After you have removed the latch plate and handle then you can take it from its slot on the door frame.

Once the latch is detached it is possible to lubricate the lock using an oil that is light in nature, such as WD40. If you don't own WD40 alternative, you could try using a graphite pencil to help remove any dirt or grit within the mechanism. If your uPVC lock still doesn't work it is possible to move the lock cylinder. This requires additional tools and should be handled by a professional. You can try repositioning the cylinder without removing it from the door by opening and closing the door while keeping the cylinder in the lock position, and then drawing pencil marks on the inside of the frame where the screws are that keep the cylinder in place.

Lubricate the Lock

Once your lock is clean and free of dirt and debris it's time to lubricate both the keyhole and the locks themselves. A good lubricant will keep your lock in good condition and prolong its lifespan.

Dry graphite powder is great for lubricating small metal components like locks since it's not oily or sticky and lasts longer than liquid greases. It's easy to apply, and you can also apply it to sliding patio doors repairs doors, door hinges, and garage door tracks. Master locksmith Shawn Fago suggests using a pencil-like graphite lubricant that is designed specifically for lock-cylinders.

Liquid lubricants may be more effective than graphite particularly in humid climates. Silicone lubricants are resistant to water and will not attract as much dust or dirt as other liquid fluids. They work well in low and high temperatures. However, some silicone lubricants could cause accumulation over time and could replace other lubricants you've tried.

Teflon-based lubricants are an excellent alternative to silicone-based lubricants as they last longer and do not attract dirt and dust. They're also ideal for cold conditions, since they can prevent ice buildup within the lock.

If your lock's cylinder is extremely stiff and hard to turn, it's probably damaged and will need to be replaced. A professional locksmith can dismantle the lock mechanism and install the cylinder of a new model that matches your existing keys. They can also perform repairs and adjustments to existing lock mechanisms. If your door does not have a lock cylinder an expert can replace it to improve security and safety. They can also install new faceplates for your lock on your patio door to are compatible with the rest.

Reposition the Lock Cylinder

If cleaning the lock with lubricant and lubricating it do not work, the problem may be that the door latch is not properly aligned with the side jamb or the door frame. Open the sliding glass patio doors repair patio door and take a look upwards and downwards at the opening of the latch. If the door is in line with the frame or jamb then you can test. If not, remove the screws fixing the latch body and adjust it upwards or downwards until the lock latch is firmly grasping the latch hasp when the door closes.

Sometimes the latch is difficult to close due to a worn-out or damaged cylinder. You'll require a new cylinder if the worn one is making it difficult to turn the key. It's important to choose the new cylinder that's exactly the same size as the previous one and has the same style keyway, so you can easily replace it by removing the two halves of the lock apart and then inserting the new cylinder.

Many home improvement stores stock replacement cylinders. You'll need the manufacturer and model number of the existing cylindrical to purchase the replacement. If you aren't sure of the model or manufacturer, take a photograph of the cylinder and its mounting screws. Then visit your local hardware store to seek help.

Once you have the new cylinder installed remove it from the screw that holds it in place. Remove the escutcheon. Make use of a screwdriver to remove the lock cylinder, escutcheon plates and lock from the door as well as the door frame. Set the screw in a secure location so you don't loose or damage it. Then, loosen enough the set screw that is located on the cylinder keep (the metal piece that fits into the rectangular hole of the door).

Replace the Lock

A patio door lock that's not functioning properly can be a serious security risk. It's not unusual for dirt and other particles to get stuck inside the lock mechanisms however if the issue isn't addressed promptly, the lock can eventually fail and stop providing security. It's a simple DIY project to replace the patio door lock. You only need a few tools and some time.

Start by examining the lock to determine what is causing the problem. If cleaning and lubrication do not help, the lock latch may be bent too much to work properly. In this instance it's best to replace the latch with a brand new mortise lock to ensure that it's as sturdy and secure as is possible.

If you're not confident in tackling this DIY project yourself, consult with a locksmith or door hardware expert to assist you with the installation of a new lock. They will have the experience and tools to complete the job properly and ensure that the new lock is compatible with your patio door.

Routine maintenance is the key to ensure that your patio door lock operating effectively. Make sure that the handle and knobs aren't loose and, if they are, tighten them as needed. Lubricate your lock at least once a year to avoid it sticking or becoming stiff. Locks that have been subjected to heavy use or extreme temperatures should be lubricated regularly. The type of lubricant you use is important, so be certain to select one specifically designed for use with locks (GT85 or WD-40's Specialist Friction Dry PTFE). For the best results, apply the lubricant directly to the key hole of the lock mechanism.