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When It's Time For Patio Door Lock Replacement

If your patio door lock doesn't work properly, it could be the time to replace it. It's a pretty easy process.

Repair My Windows And Doors have to determine is the type of lock you own. This can be done by observing the location of the keyway in the lock assembly. Certain keyways are vertical, while others have a 45-degree angle.

Identifying your existing lock

The patio door is a common point of entry for burglars. This is because it typically opens into an open or ventilating position, and is usually located in the back of the house, making it easy to conceal an incline or other climbing equipment. It is essential to protect your patio door, whether you want to stop children from leaving your home or deter a burglar.


To assist you in selecting the best replacement for your patio door lock, you should be familiar with the locks you have. This will allow you to identify the kind of lock, its features and security level. This is a good step to take prior to shopping for new hardware as it will ensure that the new lock is perfect and is securely secured.

It is often possible to identify the type of lock by looking at the outside of the door frame or the inside of the handle. You can also check the type of lock your door has, if it is equipped with a latch, or if it requires a key for activation of the lock.

The most popular lock that is found on uPVC patio doors is a euro cylinder that can be operated with a handle or a cylinder key. The cylinder is equipped with an enclosure that holds the pin inside and stops it from being removed from the lock. The euro cylinder may provide an appropriate level of security depending on the manufacturer and whether the lock has passed the accredited anti-snap tests, however here at SheffLOCK we always recommend a 3 star diamond accredited TS007 ULTION euro cylinder because it provides more protection from the most recent methods of snapping locks.

A mortise lock is an iron lock that is built into the frame of the patio door. This style of lock is available on both wood and aluminum patio doors. If installed correctly, they can be very secure as the bolt is recessed in the frame. This means that an intruder would need to cut the frame of the patio door or window sill to gain access to the lock.

Measure the width of your door

Patio doors are often the most vulnerable entry point into your home. This is particularly true if you have lots of glass. Installing locks that are of the highest quality will ensure your home is secure and could save you money on insurance. Locks for patio doors are generally of two kinds:

Based on the design and functionality you're looking for there are a variety of different lock options available. Some locks feature bolts that twist, cylinders that utilize a lock key and mortise locking systems that have a hook latch.

You can determine the thickness of your current patio door by using a tape measure that you run across the edges of the door, and record the measurement. It's also a good idea to measure the thickness of the door frame (known as jamb) in various locations, and make use of the smallest measurement to to determine which lock type is the most suitable for your needs.

If you are installing a new patio door, then you must take a measurement of the rough opening width. This is the area that the door will fit in and is the measurement that the manufacturer will require to provide you with a new door. Get help from your supplier or consult our handy guide if you're not sure how to measure.

You should also take a measurement of the approximate height of your opening however, this can be tricky as the floor of your home might not be level. You can take measurements in three locations, the centre as well as both sides and corners, and then record the smallest measurement to calculate your height.

Once you've gotten your measurements, you can choose a lock that fits your door and home. You could also install an additional security lock to provide additional protection against intruders such as a patlock handle lock, which is designed to prevent the door being opened when it's not locked or latched.

A central rail lock with a key is the best choice to ensure maximum security. This locks the patio door at multiple points and only requires one turn of the key. These offer a much higher security level than standard locks and should result in a reduction in your home insurance premiums.

Make sure you check the End-Face plate

You must know the exact details of the lock you currently have to choose the right replacement. This will ensure that the new handle and spindle fit for the patio door and that the new latch will catch in the latch hasp.

You can determine the kind of mortise lock that you have by examining the faceplate at the end. This will allow you to identify the mortise locks you have. It is also important to know the screw hole size so you can find the right replacement with the screws you have already.

Also, you should examine the location of your current keyway. There are several different types of patio door locks, and it is crucial that you know what type your current lock has so that you can match it with the correct keyway opening.

Examine the latch keeper at the edge of the jamb of your door. If the latch keeper on the door jamb is too far back it will be difficult to grasp the latch hasp. The door will not close properly. This can be corrected by putting washers behind the latch keeper.

If you have an E2105 mortise lock the latch keeper must be about 1 inch from the edge of the frame. You may also want to determine the size of the latch holder to confirm that it is at the correct level.

In most cases, the latch holder will sit slightly higher than the lock's keyway. This is to ensure that it does not interfere with the operation of your sliding door.

If the latch keeper is too high, you can reduce the height by tightening the screw or nut at the bottom. You should not overtighten the screw because it may cause damage to the lock mechanism and the door. If the latch holder is too tall, you can raise the latch holder by tightening a nut screw at the top of keeper on the jamb.

Be sure to check the screw holes

Many patio door locks use bolts for locking the door, while others use a key-operated cylinder. Both types of locks need regular maintenance to function properly. To keep your patio door secure, Lowe's offers a wide selection of sliding glass door hardware and locking solutions. You can find a variety of styles of locks, including bolts that twist, cylinder locks that use mortise locks and keys with a spring-loaded hook latch.

Some homeowners are unable to lock their patio doors because the latch has fallen or is not aligned with the strike plate. In some instances the problem could be due to minor door movements or water ingress that has affected the moveable parts of your lock. In these instances just a little light oil could be all it takes to make the door lock.

The best way to begin is by measuring the width of your current lock. You can use the ruler or tape measure to precisely measure this measurement. This will allow you to select a replacement lock of the correct size. Next, look at the end faceplate to determine if it is square or round. This is vital as it helps you select a new lock with the correct screw hole.

You will also want to be aware of the location of the screw holes on your current lock. If the screw holes are located on the top or at the bottom of the leading edge, then an extended bolt is required. Installing a tamperproof lock with a screw that cannot be removed is another option.

The installation process is fairly easy once you've picked the lock that is best suited to your door. If you're not comfortable installing a patio door lock on your own It is recommended that you seek assistance from a professional. An experienced locksmith or door hardware expert can provide professional guidance and advice and also ensure that the lock is correctly installed. If you take care of it, your patio door locks will prove to be an effective and reliable security feature that can protect you and your family safe from intruders.

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