Sliding glass doors are widely used in both private and public buildings because of their modest visual impact and simple operation. These doors are convenient, but they also make it easier for robbers to enter a building, so it’s crucial to secure your home or business as best you can.

Securing your sliding glass doors with strong locks is one of the best ways to keep unwanted visitors out. By reading this guide and becoming familiar with the many options available on the market now, you’ll be able to select the lock that will provide the necessary level of security for your door and personal belongings.

The Importance of a Lock for a Glass Sliding Door

Securing your property should be your top priority, which is why you should install a lock on any sliding door. Did you realize the factory-installed locks on sliding doors are hardly foolproof? In reality, picking them is a breeze. Some sliding doors can be unlocked by lifting the door out of its frame. This makes it easy for thieves to get into your home.

Finding out if the lock is secure is best done by calling a locksmith. They can look at how safe it is and tell you if you should replace it with a more secure system or not.

Tips for Choosing a Lock for a Sliding Door

When shopping for a sliding door lock, there are several factors to think about. These include:

What can I do to improve the safety of my sliding door?

Adding alarm sensors that can be mounted and linked to a monitoring system makes a sliding door more secure.

What can I do to improve the safety of my sliding door?

Most security systems have some sort of entryway or door sensor. Attached to the door frame, tiny sensors monitor when it is opened and closed. The alarm will sound and help will be summoned if the entrance is broken open.

Glass sliding doors are quite fragile, so it’s a good idea to protect them by applying a window film. Using window film to use window film to prevent burglaries is a good idea. An intruder will have a far more difficult time breaking through this polyethylene shield than through a fully broken sliding glass door.

Some sliding doors come with a metal rod to install in the railings, providing an extra layer of protection. If the sliding glass door already has a feature like this, then use it. It helps the door be stronger so that no one can get in without permission.

Various types of locks and locks pertaining to sliding glass doors.

Whether you’re replacing an old door or putting in a new one, you’re likely to encounter one of these 12 varieties of sliding glass locks on the door. All of these locks fall under the category of most popular, and they serve a variety of purposes.

The following is a list of 12 popular glass door lock types:

  1. Mortise and Hook Design.
  2. Loop Lock
  3. Double Bolt Locks
  4. Offset Lock with Thumb
  5. Anti-Lift Lock
  6. Keyed Lock
  7. Flush Bolt
  8. Security Bars
  9. Door Lock Pin
  10. Electronic Door Locking System
  11. Patio Locks
  12. Window locks

Because each of these designs works in a slightly different way, let’s take a closer look at them so you can make an informed choice about which one is best for your sliding glass doors.

Mortise and Hook Style Sliding Glass Door Lock

Mortise and Hook Style Sliding Glass Door Lock

Locks of the Mortise variety are installed within the sliding glass door panel. The hook lock is operated separately from the handle by the use of a thumb clasp. Many patio doors already have holes for handles, and so this type of door knob can be installed in a jiffy.

This kind of lock can only be secured from the inside, which is a big drawback. If you are on the porch and you lock yourself out, you will need to find another way into the property. As such, these locks are frequently encountered on screens and backyard sliding glass doors.

Loop Lock

The loop latch is a different kind of lock that may be used and is very simple to operate. You can place these locks on the interior of your door at the very highest point on the door. The door is connected to the opposite side from where the framework is connected on one of the sides. If you have twin doors, this is also an excellent way to link them together. Bring the longer loop into the proper position and insert it into the recipient. Bring the longer loop into the proper position and insert it into the recipient. To unlock it, lift it up and remove it from the slot. Because there isn’t a key, the only way to use this lock is from the interior of the building.

DoubleBolt Lock

Retractable glass door security can be easily improved with the installation of double-bolt locks. This is a simple method for installing a lock after the fact on a door that previously did not have one installed. It is possible to install them on your own into the doorframe as well as into the door itself. Even though they are held firmly in place by the interlocking bolts, some people are skeptical about how well they would function in the event of an extremely dogged burglary attempt.

After about a year or so of regular usage, low-cost plastic parts might break down, although this is contingent on the model that you choose. However, due to their low cost and user-friendliness, it is simple to replace them whenever they are in need of an upgrade.

Offset Lock with Thumb Turn

Offset Lock with Thumb Turn

This sort of lock is comparable to the mortise with hook style lock in the sense that such a latch is installed just on the panel and latches into the recipient that is attached to the frame of the door. The finger latch is built into the grip of this lock, which is how it differentiates itself from others. One of the benefits of doing so is that it makes it much simpler to access when you need to secure the door.

In a similar fashion to the mortise type, this one operates from within and is not normally keyed on the outside. On the other hand, if you desire to be capable of unlocking your closed screen door from the outside using a key, you can purchase versions that come with a keyhole.

Anti-Lift Lock

The many varieties of glass panel doors each come with their own unique set of risks, among the most significant of which is the possibility that the doors could be pulled off their hinges and pushed past whichever obstruction is blocking an entrance through them.

On the other hand, when mounted on the upper part of the doorway, anti-lift locking mechanisms limit the gap between both the framework and the peak of the doors. This prevents the entrance from ever being lifted and thus detached from its track. The anti-lift lock system is placed just at the height of the door frame.

Anti-lift doorway panels can be utilized to lock a door in both its shut and slightly open positions, preventing the door from becoming open further when it is in the closed position.

Keyed Lock

This is probably the most common type of lock mechanism used on sliding exterior doors. Using this sliding glass door locks with key system, you will be able to protect your glass sliding doors using coded keys from either the inside or the exterior of your home.

You can buy them in different sets, like the finger set or the mortise set or an aluminum sliding door lock with key.

Keyed Lock

These locks are designed to fit through a hole on your glass sliding door, assuming such a hole already exists. You will have to look at the lock more than once to make sure it fits with the way the hole in your door is made.

Flush Bolt

Installed in the bottom of such sliding doors, flush bolts can be moved either downwards or upwards into the frame to secure the door in its closed position.

The corners on flush bolts can be either square or curved, and they are available in a wide range of lengths and textures to complement the door hardware you already have or wish to purchase.

On the other hand, flush bolts are bolts that are almost always sold in pairs. In order to provide an additional layer of defense and security, it is not just fastened to the underside of the door but also to the surface of the frame itself.

Security Bars

Sliding a safety bar into the gap below the doorframe between both the slider and the wall makes the door more secure. For someone attempting to force the door open, this sliding glass door lock bar effectively acts as a barrier. If your sliding glass door does not have a lock, this is an excellent alternative. Since the door won’t open unless it’s totally removed, it offers no wiggle room on the exterior. This is perfect for sliding glass door lock replacement.

It consists of a block on one end that fits into the jamb as well as a slot on the other end that slides over onto the doorway. It may be adjusted to fit doors and windows of varying widths. If you do not want to dig holes in your rental but still need extra security for your glass back gate, this is a fantastic solution.

Door Knob Screw

Door Knob Screw

Typically, this types of sliding glass door lock is installed in the framework of a moving door panel and consists of a steel pin that protrudes outward and acts like the sliding door lock mechanism. For the door’s safety, it locks into the framework of the remaining panel. The pin is kept safe in a steel holder while it is not in use. This straightforward safety mechanism secures the ventilation or closing door panel securely in place, preventing it from slipping or being pushed out of its track. Additionally, it is not easily dislodged from the door.

It’s a quick and easy way to fix the problem of sliding glass doors that won’t lock, and it can be put in place with common household tools. The lock is utilized on the interior and does not include a key lock, similar to some of the others. It’s a quick and easy way to fix the problem of sliding glass doors that won’t lock, and it can be put in place with common household tools.

Electronic Door Locking System

Electric locks are a cutting-edge, superior means of protecting your home or business. Either in conjunction with or in place of your regular keys, these are convenient and versatile accessories.

When you install electronic door locks on the glass sliding doors, you can open and close them from a distance and check to see if they are secure.

A key control, your car’s key fob, a mobile phone app, or perhaps a key code can all be used to unlock them. Originally seen on cars, these are now commonly installed in homes.

The locking mechanism is a typical latch-and-bolt design. The locking cylinder is held in place by the fastening system, whereas the key turns the screws and pushes the lock a small distance, releasing the lock and allowing access.

Electronic Door Locking System Electronic Door Locking System

There are other methods to do this, but they often need a great deal of skill and time to do.

Sliding doors that use master locks typically have actuators installed to force the bolt through an unlocked position. The doors will open automatically once you press the activator.

 Patio Locks

An intruder cannot simply remove the latch and unlock the door due to the sophisticated types of sliding glass door locks. This type sliding glass door locks and handles, activated by a spring, can be installed either above or below the door framework. The main body fastens to the door, while the plate attaches to the jamb or sill. The door is kept shut by a spring-loaded push that slides into something like a plate. An intruder cannot simply remove the latch and unlock the door due to the sophisticated lock.

Another simple replacement fix, this one may not be ideal for a rented flat due to the need for cutting and drilling the door panels.

Window Locks

There are times when the simplest constructions are actually the most inventive solutions. These types of sliding glass door locks are designed to clamp into position after sliding onto the metal track of the sliding-glass door and are basically sliding door locks without key. Like the greater security bar, these window locks protect your home or business from anyone who tries to get in through your sliding door. Like the greater security bar, these window locks protect your home or business from anyone who tries to get in through your sliding door.

Window Locks

This kind of lock is quite common among families who really want their children to have access to some fresh air from the outside but do not want their children to be capable of opening the door all the way and walking out of the house. With these, sliding door locks can be put in without any other tools and in a very short amount of time. With these, sliding door locks can be put in without any other tools and in a very short amount of time.

Types of sliding glass doors

Standard Sliding Glass Doors

These patio doors have two panels: one panel is fixed in place, while the other panel can be moved to either close or open the opening. There is a track that runs along the bottom and the top part of the door that is fixed in place. Moving the panel that can be moved down the track is all that is required to operate the door.

French-Style Sliding Glass Doors

One of the most well-liked choices for patio doors is the classic look of a French door. Sliding door mechanisms offer an alternative to the conventional ones and come with their own set of benefits.

The rails as well as stiles of a sliding glass door designed in the French style are typically wider. As a result, this door seems and feels more opulent and spacious than its counterparts. Additionally, the door has a wider range of applications.

Sliding doors in the style of France go beautifully with both contemporary and traditional architectural styles.

The installation of a chic patio door that complements the aesthetic of your home is a terrific way to enhance the appearance of your living area. Also, a sliding glass door in the style of France checks off all the right design boxes.

Doors: Sliding glass doors…

Doors: Sliding glass doors

The appearance of this kind of door is very similar to that of two regular glass doors that have been butted up against one another. In addition to the two screens that are fixed in place, each side has a pair of sliding panes. Your home will get plenty of natural daylight and a wonderful view thanks to the expansive entryway formed by the doors, which are both elegant and spacious.

Bi-Fold Sliding Glass Doors

Moving bi-fold panels are comprised of two panels of glass which are joined to one another by hinges. As soon as the door is opened, it collapses into itself. This door style is more contemporary than any of the others.

Pocket Sliding Glass Doors

When the door is opened, it slides into a recess in the wall where it is hidden from view. This type of door is known as a “hidden sliding door. This indicates that the glass panes are not present at all. The fact that these sliding doors take up significantly less room than those of other kinds of glass panels is the primary benefit of using them.


Different kinds of locks are designed to do various things. Depending on the size, contents, and location of your home or company, one type may be preferable over another. What matters most is that you choose a secure locking method that you can use.


1.  What is a Sliding Door Interlock?

When a sliding door is installed next to a fixed panel, an interlock is utilized to prevent air leakage.

2.  How do you pick a sliding door lock?

Sliding door locks are relatively easy to open. One could easily use a metal bar to pry it open. That is why we suggest replacing the aftermarket locks with one of the more secure locks out there.

3.  Can I Put a Lock On By Sliding Glass Door?

Indeed, you can. Because of recent developments in lock technology, a sliding door lock is now the most reliable method for securing a sliding door.

4.  How Do You Fix An Old Sliding Glass Door Lock?

You can contact a professional locksmith and get the lock looked at and ensure that your door is safe afterwards.

5.  How Do I Replace a Sliding Glass Door Lock?

If you’re worried about the security of your door lock, calling a locksmith to look at the lock can help.

6.  Can You Put a Deadbolt on a Sliding Glass Door?

No, but you may add double-bolt locks, which offer an additional layer of protection and are simple to install on most sliding doors. They perform its function by preventing the door from being lifted or removed from the track that it glides along.

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