Image: MomJunction Design Team
Sliding glass doors add an aesthetic appeal to your house, but their single-latch feature may not be enough to prevent intruders. So, we have brought a list of the best sliding glass door locks to provide you with adequate security. With these locks, you can stop thieves and trespassers from entering your house and prevent children and pets from running outside.
Sliding glass door locks adhere to the conventional mortise lock, so you don’t have to change the entire door to ensure your family’s protection. They are sturdy and cannot be damaged easily. Various options are available, including adhesive, pin lock, mortise lock, or bar lock type. So, explore your options to choose the right one for your home.
Top Picks
13 Best Sliding Glass Door Locks
1. Best Child-Safe:Ashtonbee Sliding Door Lock
Image: Ashtonbee Ashtonbee’s child-safety door locks are designed to fit into doors of rooms and closets. This locking device is one of the best door locks on the market and requires no screws or drill for installation. You can install it by peeling off the tape and sticking it on the designated surface. Its keyless design allows you to unlock it by flipping and lock it by pressing down. The tape is compatible with most surfaces and is ideal for babies and toddlers. It requires little space and blends easily with your home. The lock measures 9x3x0.05″. Click here to check out this video review showcasing a tester’s experience.
Pros
- Hassle-free installation
- Multi-purpose
- Durable
- Easy to operate
Cons
- The latch may not always stay locked
- Might get challenging to uninstall
"Its tool-free installation and wide range of compatibility have made it one of the first things I pack while traveling. It is also pretty durable and fends off every attempt by my children to pry it open."
Trivia2. Best Self-Locking Hinge-Type:Burglabar Sliding Patio Door Lock
The two-pack Burglabar door lock is a uniquely designed self-locking hinge-type lock that protects your windows and doors. You can easily install the door lock without using any tools. The tried-and-tested lock, made of sturdy transparent Lexan material, has a unique adhesive that adheres like a weld. Each lock can withhold dynamic shear of 300-450lb. The lock measures 7.64 x 4.76 x 0.75 inches. Here’s a review video to help you get a better understanding of the product.
Pros
- Easy to install
- Strong adhesive
- Stays for a long duration
Cons
- Might get installed wrongly if the directions are not read
- May not be sturdy enough
"It installs quickly, and the transparent design perfectly matches all my windows and doors. Its adhesive makes removing it difficult, but I consider that an advantage. Also, the freedom to fix it at any angle and height has made it more secure."
Point to consider3. Best Sturdy:Okefan Sliding Glass Door Child Lock
Image: Okefan 
Why We Think It's Worth Buying
The product has earned its stripes, with over 5,523 reviews on Amazon.
The trusted glass door child lock is one of the best locks for childproofing your house. You can install the pack of four sturdy locks beside the door shelf and lock the door by pressing the double buttons to prevent it from sliding. The lock is made of high-quality ABS plastic with stainless steel spring and 3M adhesive tape. You can install the lock without any tools, and it is suitable for most types of doors, closets, and windows. Click here to check out a detailed personal review of this product.
Pros
- Durable
- Easy installation and use
- Sturdy construction
Cons
- The thickness of the lock may not be ideal for all types of sliding doors
"I have two spirited children, so this safety lock has come in handy to keep them safe. It sticks pretty well on all surfaces and is easy for me to operate. Moreover, it has been going strong despite being installed on our main door, which is used regularly."
Ashtonbee Sliding Door Lock Best Child-Safe | Burglabar Sliding Patio Door Lock Best Self-Locking Hinge-Type | Okefan Sliding Glass Door Child Lock Best Sturdy | |
|---|---|---|---|
| Color | White | Clear | - |
| Weight | 0.704 ounces | 1 pounds | 6.4 ounces |
| Dimensions | 9 x 3 x 0.05 inches | 3 x 2 x 1.38 inches | - |
| Rating | |||
| Reviews | 4,455 | 6,715 | 5,523 |
| Price | $15.99 | $11.95 | $15.95 |
4. Best Spring-Loaded:Prime-Line E 2014 Mortise Lock
Image: Prime-line Why We Think It's Worth Buying
This product is a hit with users, evidenced by the 3,991 fine reviews on Amazon.
The spring-loaded sliding door latch lock is sturdy, has an adjustable hook, and is suitable for sliding patio doors made of wood, vinyl, or aluminum. You can easily mount the mortise lock on the door’s surface. It is a keyed sliding door lock with a handle kit that has a 45-degree angled keyway position when in the locked position. It is a trusted choice for increasing the safety of your house. The mounting hole centers of the lock measure 3-11/16″. The dimensions of the mortise lock are 1.125×0.5×3.688″. The product comes with a one-year warranty against manufacturing defects.
Pros
- Easy to operate
- Sturdy
- Durable
Cons
- Installing it may be a hassle
- May not be lubricated appropriately
"Installing this lock onto my glass sliding door has proven to be a wise decision. It's easy for me to maneuver, but my kids still find it impossible to unlock it. An extra set of hands was required for installation; however, its material is strong, and the locking motion is seamless."
5. Best Easy-To-Install:Sure Basics Sliding Door Lock
Image: Sure Basics Why We Think It's Worth Buying
Over 2,902 satisfied customers have left positive reviews about the product on Amazon.
The combination of two sliding door locks is perfect for baby-proofing closets and doors. You can quickly install it on your door without any tools by simply peeling off the strong double-sided tape that works on most surfaces. The tried-and-tested lock is made of high-quality BPA-free PP material, which is also non-toxic, odorless, and safe. While the screen door lock rests on the overlapping door, you can lock it by pulling with your finger and pressing it down to unlock. The lock measures 29.53×19.69×0.24″.
Pros
- Easy to install
- Easy to operate
- Sturdy construction
Cons
- The latch may not stay in place
"The best part about this lock is its adaptable design, which has allowed me to use it for closets and doors. Its white hue seamlessly blends in with my decor, and the toll-free installation is a bonus."
6. Best Elegant:U.S. Patrol JB8095 Black Sliding Door Lock Bar
The elegantly designed strong bar lock made of durable iron is both safe and effective in keeping your house secure once you attach it to your sliding door and will blend easily with your home decor. You need to place it in the door track and adjust it to the required length to tighten it in place. The lock is adjustable between 26-42 inches and can be easily installed or removed at your convenience.
Pros
- Robust
- Stylish
- Easy to install
- Easy to adjust
Cons
- It may not fit well in every door
- May not be suitable for windows since it could break the glass if placed at a certain height
"These security bars are a solid choice for improving home security. They are not only robust and flexible but also visually appealing."
7. Best Reusable:Secure Home Sliding Door Locks
The keyless sliding door security locks, made from high-quality ABS and TPE, are suitable for baby-proofing your apartment and are easy to install without any tools. This sliding door lockset has four locks that blend easily with your home décor and are easy to adjust as per the intended length of up to five inches. These locks are suitable for most handles, such as round knobs, D-shaped, and annular handles. The smartly designed locks require no adhesive and are easy to install by peeling the tape.
Pros
- Reusable and convenient
- Easy to install
- Stylish and sturdy
Cons
- May unlock with brute force
- May be too thick for some sliding doors
"After experimenting with multiple locks, I have finally settled on this one due to its easy setup. It could have been more aesthetically pleasing, but the reusable design allowed me to carry it when I moved homes. And the lack of screws and magnets adds an extra layer of security."
8. Best ABS Plastic:Kong Nai Sliding Door Lock for Child Safety
The combination of two beautiful-looking door locks made of sturdy ABS is a trusted choice for childproofing your closets, doors, and cabinets. It does not require drilling or screws to install, and its triangular shape prevents the doors from opening. The touching surface of the lock uses TPR rubber coating to avoid damage to your door. The door clearance is above 7mm, and it can be opened manually to avoid automatic lock-up. By merely peeling the 3M tape backing, the lock can be installed within minutes without tools. The lock measures 9.02×3.19×0.39”.
Pros
- Easy to install
- Stylish yet tough
Cons
- May come off easily
"Although simple, this adhesive lock has proven to be a quick and dependable tool for securing sliding doors. It also installs quickly and gels well with my decor. It makes slight noises when pulled harshly but never allows the gate to be opened by the little one."
9. Best Corrosion-Resistant:FPL Sliding Glass Door Replacement Mortise Lock with Adapter Plate
Image: Fpl Door Locks And Hardware Inc. The mortise lock plated with yellow zinc dichromate has a corrosion-resistant design. It is elegantly designed to perfectly fit your vinyl, aluminum, and wooden sliding doors, thus providing higher security and peace of mind. The all-steel lock mechanism can withstand nearly 1000 pounds of forced entry load and has a round end faceplate, a 45-degree hub, 5-3/8″ screw holes, and an adjustable hook. The lock measures 6.5x1x2”.
Pros
- Durable
- Sturdy construction
- Adjustable
- Locks and unlocks easily
Cons
- May not work well for certain doors
"Despite the lack of instructions, I could install this lock by myself. Its all-steel construction has remained rust-free and issues me of its longevity. Plus, the different color finishes had me spoilt for choice during the buying process."
10. Best For Different Surfaces:Inaya Sliding Door Lock for Child Safety
Image: Inaya The combination of four sliding door locks is what you need to make your home safer. The sturdy locks with pre-coated 3M adhesive are easy to apply within a few minutes to baby-proof your home. The locks adhere to almost any surface and blend well with the furniture. It is just ¼” thick, which makes it versatile. You can use a hairdryer to melt the adhesive and pull it out to remove it quickly. The product has a one-year warranty and comes with video instructions for an easy installation process.
Pros
- Easy to install
- Simple and versatile design
- Does not damage the furniture
- Easy to stick and lock
- Effective
Cons
- May pop open by itself
- May come off easily
"With this lock, I have finally managed to keep my kids and dogs away from the places they shouldn't be. Its adhesive back makes installation easy, but moving it can be difficult. Still, it has been an excellent security solution."
11. Best Double-Bolt Locks:Cal Security Double Bolt Lock for Glass Sliding Doors
Image: Cal Security Enterprises This smart-looking double-bolt sliding door lock is made with advanced technology to keep your house safe from burglars and intruders. The high-security lock also allows childproofing your sliding patio doors by clearly indicating lock/unlock status. The tried-and-tested double-bolt lock has a slim, stylish, and simple design that easily fits most sliding doors even in limited space and provides more than 1000 pounds of forced entry load tension. You can easily mount the lock on OEM lock to keep it beyond children’s reach. The product offers a 100% money-back guarantee and measures 11.9×4.5×1.5”.
Pros
- Easy to install and operate
- Stylish
Cons
- The lock installation may leave a gap between the door and the frame leaking sound and wind through it
- The plastic material may not be of good quality
"Thanks to this lock, I can keep my kids from entering the backyard when the grill is switched on. Its sleek design also does not feel like an eye sore, and the option to fix it at the desired height is a significant perk."
12. Best Chrome-Coated:Defender Security U 9858 Sliding Patio Door Lock Pin
The hardened steel pin locks for sliding doors have a plated case and chrome coating and allow you to protect your house with a hassle-free installation. Known for its safe and effective design, you can securely lock the door in a closed or ventilated position and prevent the door from sliding or lifting. The pin mounts into 1/8-inch holes drilled through the fixed panel frame. The locking pin rests on the retaining ring when locked and in the holder when unlocked. It measures 0.63 x 3.81 x 2.62in.
Pros
- Easy to install
- Works well
- Simple yet effective
Cons
- May be too short for wooden doors
- May break easily
"It's been a few months since I installed this lock, but it has required no maintenance or adjustments. Its installation, though doable, required some drilling abilities. Nevertheless, it is durable and allows me to lock the door at ventilating positions."
13. Best Sleek:Latibell Sliding Glass Door Locks
The pack of four glass door slide locks is ideal for your child’s safety and has strong adhesive tape to attach it to the doors with ease. It does not require any tools or drilling and can be used by raising the baffle, and when not in use, pressing the baffle can open the window or door normally. The sliding door locks can typically work on most surfaces, such as glass, wood, plastic, and metal surfaces. The lock is sleek, robust, and stylish and can be used by simply peeling off the 3M tape backing. The lock is made of durable BPA-free ABS plastic and allows you to seal the doors firmly when in use.
Pros
- Easy to use
- Easy to install in less time
- High-quality construction
- Versatile
- Durable
- Occupies minimal space
- Blends well with the home decor
Cons
- It may not work for all door-types, and if your weather gap is thin, it may not work well
- Removing it may be a hassle
"All my toddler’s escape acts have failed before the security this lock provides. Besides, the tow-button mechanism is also simple to use, and the adhesive backing offers a firm hold regardless of the surface I stick it on."
How To Choose The Right Sliding Glass Door Lock?
Here are a couple of things to keep in mind while buying a sliding glass door lock.
- Strength: You must buy a sturdy lock that can restrict the patio door while also supporting it without breaking. Pin and mortise sliding door locks are robust and provide enough strength to prevent intruders from entering your home.
- Size and thickness: You must consider the locks’ size to see if they fit your window or doors. If the locks are too thick, opening the door may be troublesome, while a lock that is too thin may not achieve its purpose.
Frequently Asked Questions
1. What is the best lock for a sliding glass door?
Some good sliding door locks include loop, double bolt, and slide track locks.
- Sliding door loop locks can be installed by a beginner without professional equipment, making them an affordable option.
- Deadbolt sliding door locks secure the doors to the track, making them very difficult to remove from the tracks.
- Slide track locks may prevent your doors from sliding involuntarily, but they need professional equipment for installation.
2. How should I secure a sliding glass door?
To secure the sliding glass door, you can use security bars that would stop the glass door from sliding. Installing a compatible lock will also make the sliding door secure.
3. How should I unlock a sliding glass door without a key?
You can use a screwdriver or a similar tool to break or loosen the latch if it is a door-mounted lock. For inbuilt door locks, you may have to pry the door out of the track or remove the screws to lift the lock.
Why Trust MomJunction?
We have noticed many consumers skeptical about having sliding glass doors. To address the issue, we bring you this list of the best sliding glass door locks from trusted brands that will give your house additional security and ensure your family’s protection. After going through several reviews from customers and their ratings, we chose these products. We have also included a buying guide to help you choose the right locks for your safety.
The Bottom Line
Sliding glass doors can add to the aesthetics of your home. However, the common problem most people encounter with these doors is weak security, as they feature a single latch. With the best sliding glass door locks, you can add to the security of your door and feel safe in your house. Among our list, we suggest the Okefan Sliding Glass Door Child Lock for tool-free installation, the Sure Basics Sliding Door Lock for child-proofing, and the clear and transparent Burglabar Sliding Patio Door Lock for its self-locking feature. Before investing in a lock for your sliding glass door, consider the size of the lock and ensure it is compatible with your door. While a sliding glass door lock should be sturdy, it should not damage the door.
Infographic: What Are The Various Kinds Of Sliding Glass Door Locks?
Sliding glass door locks help to keep your balconies, patios, and verandas safe and secure. Understanding the different sliding glass door lock types can help you assess them and choose the one that best matches your needs. Check out the following infographic to learn about these variants and their features.
Illustration: Momjunction Design Team
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