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 an easy procedure.
The first thing you need to do is determine the kind of lock you have. This can be done by observing the keyway's position on the lock assembly. Some keyways are vertical, while others have a 45-degree angle.
Identifying your existing lock
The patio door is one of the most sought-after points of home entry for burglars. It is because the patio door is normally in an open or ventilating state and is situated behind the property, making it a breeze to conceal the ladder or other climbing equipment. This makes the security of your patio doors crucial regardless of whether you wish to keep children from leaving your property or deter a determined intruder.
To assist front door locks replacement in selecting the ideal patio door lock replacement, you should familiarise yourself with your existing locks. This will help you determine the kind of lock, the features and security level. This is a good step to do before you start looking for new hardware as it will ensure that your new lock fits perfectly and is securely fastened.
In many instances you can determine what kind of lock you have by observing the outside of your door's frame, or by looking inside the handle. You can also examine the mechanism that locks your door, if it has a latch, and if a key is required to activate it.
The most common lock used in uPVC patio doors is a euro-cylinder that operates with either an handle or a key. The cylinder is fitted with an sleeve that keeps the pin inside which stops it from being removed from the lock. The euro cylinder can provide some degree of security, contingent on the manufacturer. If the lock has been tested for anti-snap certification and is certified for anti-snap, it will be able to offer a certain amount of security. However, here at SheffLOCK we recommend the diamond-certified 3 star (TS007 ULTION) euro cylinder. It provides more protection against snapping locks.

A mortise lock is a steel lock built into the frame of the patio door. This style of lock is used on both aluminum and wood patio doors. They are extremely secure if installed correctly, as the bolt is embedded into the frame and the intruder must cut through the patio door frame and window sill to access the lock.
Measure the width of your door
Patio doors are often the most vulnerable points of entry to your home, particularly if they have large amounts of glass installed. Installing locks of high quality can make your home more secure and you could save money on insurance. The most popular types of patio door locks are:
There are a variety of lock options depending on your style and functionality. Some locks have bolts which twist, while others use mortise and lock keys, and locking systems that use a hook latch.
Use a tape measure across the edges of your patio door to record the thickness. It's recommended to take measurements of the frame of the door (known as jamb) in various locations and take the smallest measurement to to determine which lock kind is most suitable for you.
You should determine the width of your opening prior to installing the patio door. This is the opening the patio door will fit in, and the size that you'll require from the manufacturer in order to purchase the new door. If you're unsure of what size to choose, ask your supplier for help or refer to our helpful guide:
It is also important to measure the height of the opening, but this may be difficult when your floor isn't level. You can measure in three places, including the centre and both sides and note the smallest of these to calculate your height.
Once you have the measurements, you can choose the right lock to fit your door and your home. You can also install an additional security lock to offer extra security against burglars, such as a Patlock handle lock, which is designed to prevent the door from being opened even if it's locked or secured.
For maximum security For maximum security, a central rail-operated key-operated lock is an excellent option. The lock bolts the patio door to the frame at various points, and requires only one turn of the key to lock them all. These locks provide a greater security and may lower your home insurance costs.
Check the end-face plate
You need to know the precise details of the lock you have in order to determine the best replacement. This will ensure that the new handle and spindle fit perfectly on the patio door, and also that your new latch will fit in the correct hasp of the latch.
First, examine the face plate at the end to determine if it's round or square. This will help you determine the type of mortise locks you have. It is also important to know the size of the screw hole so that you can find the right replacement with your existing screws.
You should also take a look at the location of your existing keyway. There are numerous types of patio doors locks. It is essential to know which type your lock has in order to match it with the right keyway opening.
Check the latch keeper's position at the edge of the jamb of your door. If the latch keeper on the door jamb is too far behind, it will be hard to get the latch hasp in place. The door won't close properly. Fortunately, this issue can be corrected by adding washers or a shim in front of the latch keeper on the jamb.
If you have mortise lock E2105, the latch keeper must be at least 1 inch from the frame edge. You might also want to measure the length of the latch holder.
In the majority of instances the latch holder will be slightly higher than the keyway opening on your current lock. This is to ensure that it does not interfere with the sliding door's operation.
If the latch keeper is too high, you can reduce the height by tightening the screw or nut on the bottom. Do not overtighten the screw or nut as it could cause damage to the lock mechanism and the door. If the latch holder on your door is too low you can raise it by using screws or nuts at the top of the jamb of the door.
Make sure you check the screw holes
Many patio door locks employ a lock bolt to secure the door, while other locks are operated by a key. Both kinds of locks require regular maintenance to ensure they function correctly. Lowe's offers a range of sliding glass door locks and hardware to help secure your patio door. You can find a variety of styles of locks, including bolts that turn and cylinder locks that utilize mortise locks and keys with a spring-loaded hook latch.
There are homeowners who have difficulty getting their patio door to lock because the latch has dropped or isn't aligned with strike plate (also known as the jamb for the door). In some instances the issue could stem from minor shifts in the door or water ingress that has affected the movable parts of the lock. In these cases, a little light oil could be all that's required to make your door lock properly.
The best way to begin is by measuring the width of your existing lock. You can make use of a ruler or tape measure to precisely measure this measurement. This will allow you to select a replacement lock that is the right size. Then, take a look at the faceplate at the end to determine if it's square or round. This is important because it lets you select the correct lock with the correct screw hole type.
Also, you'll need to take note of the location of the screw holes on your current lock. If the screw holes are on the top or at the bottom of the leading edge, then an extended bolt is required. The other alternative is to install a secure tamper-proof lock using screws that aren't removable.
After you have decided on the kind of lock that is the best fit for your door, the process of installing it is fairly straightforward. It is recommended to seek professional assistance when you aren't sure about the installation of an outdoor lock. A professional locksmith or door hardware specialist can offer expert guidance and advice as well as make sure that the lock is correctly installed. If taken care of, your patio door locks will prove to be an effective and reliable security feature that can keep you and your family safe from intruders.