Best Sliding Glass Door Locks Guide & Reviews of 2021

Defender’s hardware makes for the best sliding glass door mechanisms that keep things safe and secure. An impressive stat right off the bat is that it can withstand up to 800 pounds. That means that even the bulkiest burglar or intruder won’t be getting through. The spring-loaded design also makes the device tamper-proof, so clever teens or criminals can’t pick or pry it open. Installation requires just a screwdriver so clients can put in the three-inch screws. A drill could also be necessary, but this isn’t something to worry about or prevent individuals from purchasing. As the reviews suggest, this is a worthy option to consider.

Defender’s design and the choice of four colors means that customers can pick and choose which hues match their sliding glass doors. This concealed look adds more cohesion to the whole thing. In other words, the handle doesn’t look so obvious and doesn’t clash with the rest of the property. The downside of this is that criminals won’t see the bolt until they get up close and personal. It’s not a clear, visible deterrent, which is what some folks may be looking for.

This sliding glass door lock from Ideal is perfect for balconies or decks. It screws in and sits in the middle of the doorframe to deter thieves and better protect the family. It also sits at a comfortable height, about waist-high, so that’s it easy to use for just about anyone in the house. For those who are worried about their young kids, they can rest assured that the device is child-proof. That, and it is also properly tamper-resistant to keep burglars away. The mounted design and the adjustable width make it an easy-to-install option, one that will support various households and family members.

This device is designed to fit doors 25.5 to 47.5 inches wide, thanks to its adjustable size. It’s only made for sliding designs, so clients should not try to use it on windows. For those who are interested, Ideal has specialty equipment for windows, too. Like many of the other competitors on this list, Ideal’s equipment is mounted for added protection and assurance. Customers can try it out for free for 30 days, too. Ideal calls itself a “trusted and progressive” supplier, and its 2021 range of home and commercial monitoring services, fasteners, and doorframe devices is proof of that.

CAL’s sliding glass door lock is child-safe and can withstand up to 1,000 pounds of forced pressure. It also has an anti-lift design to prevent anyone from trying to pry it open or pull it apart. The sleek look makes it a great choice for those who want a more concealed device. Plus, the low-profile look allows greater access so it can fit into crevices that others can’t get into. That said, it does not provide a universal fit, and set-up can be quite difficult. That that means is that individuals may need to pull out the toolkit and spend some extra time to set things up. This doesn’t have to be a dealbreaker, though.

Fortunately, this CAL device comes with a buyer guarantee. If the customer reviews are any indication, it’s worth checking out this nifty equipment. The heavy-duty handle and pin-locking design ensure greater protection and a snug fit. Plus, there is the option to add more plates to the order to achieve a better fit. CAL’s locks also come in packs of three to suit a wider variety of frames and properties. The price is right, the strength is phenomenal, and money-back guarantee ensures that there is nothing to lose.

Toledo regularly makes the list of the best sliding glass door locks. That’s because it’s made of hardened steel that’s 1 3/4-inches thick. This creates a tight bolt that not even the slickest burglars can get through. Another useful feature is the concealed screws and hardware, which stay out of sight so savvy criminals can’t finagle their ways in. All of this reinforcement does mean that the home installation is a bit more intense, but it will be well worth it. This is an option that would work well on larger windows, too. It’s not too much work and should be relatively easy for someone with a bit of DIY experience. Unfortunately, it’s not clear what the refund policy is.

For those who are worried about teenagers sneaking out of the home late at night, Toledo sliding glass door locks can only be unlocked with the included set of keys. This should ease parents’ worries. The latch is also tamper-proof and should keep naughty neighborhood kids and determined burglars at bay. The stainless steel is also resistant to hacksaws and bolt cutters, which makes this one of the greatest anti-theft options on the market.

Anyone who has ever had a little one crawling around the home knows that it’s hard to keep a baby from getting into things. OKEFAN offers one of the best sliding glass door locks for those frazzled parents. Those large panes of glass that look over a patio or balcony are mighty interesting to a toddler, so try this product on for size. It keeps the outside off-limits to them but allows access to mom and dad to slip by nice and easy. OKEFAN is a leader in baby-safe products, so this is a top pick for parents who are tired of stressing about their little ones getting out.

The OKEFAN sliding glass door locks feature a peel-and-stick surface. This makes it ideal for windows and cabinets, too. To set it up, customers can stick it to a clean glass panel. From there, they press in the two buttons to activate the locking mechanism. This seals the device so babies can’t meddle inside. When parents want to get into a cabinet or open a window, they press down the cover to release the device. This simple design is best for sliding glass doors in that it’s convenient. However, it’s much too flimsy to prevent burglary.

Supply Guru has tons of household improvement devices, but today the focus is on how it protects sliding glass doors. This keyed lock has a surface mounted design that individuals can place on sheds, decks, and utility doors. The key locking feature will appeal to those who want extra reinforcements to keep their belongings safe. To open it up, simply slide the key into the handle and turn it 180 degrees. This prevents criminals from trying to jiggle it or pry it open.

Users should mount it high on the slider to keep it out of the way, given that the device is quite small, it doesn’t interfere with the rest of the design flow of the property. This is good considering it comes in black or stainless steel. That said, it is on the smaller side, so it won’t inhibit daily activities or look like an eyesore. The key is a great addition, but if customers lose it, then they’re out of luck. Plus, if multiple people are going into the house at different times, things could get tricky. This could cause some buyers to bypass this option. However, with a bit of care, they can manage to find a system that works for everyone in the household.

If the name is any indication, then this product from Lion is one the best sliding glass door locks out there. Compared to Toledo, this one is much easier to install. All of the hardware is included, of which there are just the main latch and the two attached screws. Because of this, it’s a great choice for renters or those who don’t own their homes. This product is also an Amazon’s Choice for window security bars. Those who look to client reviews before making a purchase will be impressed with what past customers have to say. A quick visit to Amazon will reveal mostly excellent feedback. The price is right, and it’s something that individuals could use in an apartment or rented property without causing further damage.

How it works is clients slide their sliding glass door locks into the doorframe. The interior rubber grip keeps it in place. From there, they use the two attached thumbscrews to tighten the latch. It’s so easy and takes just minutes, making it a good stowaway for trips to the beach house or a hotel. The only pitfall is that once it’s secured, it’s inaccessible to thru traffic. Therefore, it may not be ideal for patios or balconies where people are constantly going in and out.