Double Bolt Lock for Sliding Glass Doors - Newly Patented - Advanced Technology to Keep Your Family Safe and Secure - High Security Lock - Virtually Burglar Proof (White)

After our sliding door’s plastic casing broke that held the door locked, we purchased this. I was really cautious when installing, measuring 20 times, pre-drilling holes, triple checking over and over again to make sure I didn’t hit the glass in the patio door. Overall, installed, and didn’t break the glass (like other reviews commented). The lock plate that’s on the interior part of the door, not the one attached to the sliding glass, was a little short, so we did use the spacer that came with it, still too short, so we added additional spacers to secure it better. We used spacers that you’d use on electrical outlets when you have tile, like backsplash tile in your kitchen. Worked amazing for that small issue and really secured it! Others commented that the lock bars come apart over time from the bottom/top plastic pieces (see red circles). They did after 6 months maybe. You’re able to push them back in by hand or using a pipe wrench worked best for us. After it continued to separate almost monthly, I used clear Gorilla glue in the holes and since then it hasn’t been an issue (6months ago). I know this sounds like a lot, but I’m still VERY happy with it and would still recommend it and buy again if ever needed. After all said and done, I’m SO GLAD we purchase this cause otherwise the only other option was a new door and to spend money replacing a door that was only 7 yrs old! I’d recommend it, I’m a security freak and feel like this lock is more secure than the lock that came with the patio door.

Totally worked great on my condo's sliding glass door!!! I live on the ground floor, too, and I'm only too aware of the ease with which break-ins occur through patio doors. My door is entirely too wide for a security bar, and it's not a very hefty frame. It's a very slim metal frame, and I don't have a lot of wall overhang to work with either. To further complicate matters, I have a very curious toddler, and she kept pulling out and hiding the metal pin that was installed on my door when I moved in. She also is tall enough now to open the darn latch, so I really had to step up my game finding a solution for my sliding glass door. I had been looking for MONTHS, literally since I moved in back in April, for something that would secure that door. I have tried a few different things, but had to return them all because they were too bulky for my specific setup, either requiring a thicker frame around the glass, or requiring a deeper inset in the wall. The Double Bolt lock was one of the pricier options, so I was reluctant to try it until my daughter started unlocking the door and I discovered it'd been unlatched for several days unbeknownst to me. After watching the videos and reading the reviews, I was sure that it'd be the answer to my problems. Sure enough, I was able to get it installed in about 20 minutes, and I feel immeasurably less worried about both how childproofed my patio door is, and that it's much, much more secure from intruders! I have given my door a serious tug and really tried to jiggle it, and it feels locked down like Ft. Knox. Love it! It's easy for me to operate, very low-profile, and blends in perfectly with my white patio door. I absolutely am thrilled with it, only wish I'd gotten it sooner -- I could have saved a lot of searching AND slept easier for months! My only quibble is that the childproof lock & key mechanism is kinda cheesy. I can't even get mine to turn without the key bending or the plastic lock trying to strip out, so I don't bother with that part. I installed the lock high enough that my daughter will not be able to reach the top latch for a long time, so it's a minor flaw I have no problem overlooking. The key is simply a flat metal head, like a flat screwdriver, so it would be simple enough for anyone determined enough to unlock anyway,

Bought this for our back slider door. It’s sturdy and works well. We had a little trouble when installing because of the way our door was but we got it figured out. It gives us good peace of mind that our little kids can’t get outside around the pool.

Easy to install. Insure you check your are not drilling near the glass. Does the job to provide additional security.

Okay so I had a pet door I removed from the sliding glass back deck door and had long ago lost the latch keeper in the door frame, so I wanted a daily use normal security door lock. Saw this one and thought it looked like it might be worth a shot. It came in today and it took me something maybe 10 to 15 minutes to install using the most basic household tools and not even looking at instructions. You have a pencil, a cordless drill/screwdriver, you're good to go. Easy enough to line up for smooth latch operation. Once installed it looks fine on the door; blends right in. Here are some things to consider: WHAT IT IS NOT: It is not some kind of high-security foolproof deadbolt system that will keep out a determined crook. After all, it's a glass sliding door to begin with..... WHAT IT IS: It is a nice looking, low profile, easy to install daily latch type door lock with a reasonalbe level of security compared to most other sliding glass door latch systems. Combine this lock with normal door handle latch, a siding door bar and a home alarm system - now you're about as secure as a sliding glass door could be. INSTALL: I used 2.5" deck screws with countersunk heads for the frame bolt keeper instead of the 1.75" machine screws they provided - picture shown - this gave a more flush mount and I was able to get into the frame timbers well enough that it's now a more secure lock. FIT/FINISH: Okay high points here. It does look really good in place compared to a lot of alternatives. Like it could have come with the door that way originally. MATERIALS: This is where I took away the star. Would have been easily 5-star product all-around, if it was all metal construction. The security load bearing elements are metal. The plastic components are not really "load-bearing" BUT they are still plastic components in a lock for a primary daily-use door to inside/outside the home. I get it, it's 2022 and we're all into keeping cost down and metal is more expensive, blah blah blah. I can tell you this speaking for all the home owners of America - I would have happily paid twice as much, for this to have been all metal construction. NOT for security reasons, but for durability, service life longevity, reliability reasons. Ok that said I'm happy with the purchase - and as long as you keep in mind what this is and what it isn't - I'd say I recommend it.

Works as described. Looks clean and not like something that belongs in a hotel room.

Worked great on my son's sliding glass door.

My overall rating would be a five, however the exceedingly **horrible** instructions that came with the double bolt degraded my feeling for the product. Spelling mistakes, tiny illegible print, cryptic slang and impossibly small black & white pictures all lead to a consumer that's completely confused and frustrated. Fortunately, a third party (not the creator) made a video that kind of described what it looks like installed but seriously, this company needs to think about their consumer a little more *especially* given the high price for this product and create legible instructions with color graphics and human-readable English. The product is good. The locking mechanism (which comes with a key) to prevent anyone from unlocking the double bold (when it's locked) is made of a very cheap plastic and wouldn't last long under the right amount of pressure. If you turn this locking mechanism's key too much, then the "key hole" (also made of a cheap sub-par plastic) will distort and then you'd need to resort to a smaller screwdriver to lock & unlock. This locking mechanism needs to be made of metal, period. After figuring out how to install this, I realized that the package came with (what looked like black spacers) to help the door frame catch mechanism fit. I pre-drilled holes and installed the hardware successfully and now have a little more security on my doors. Q: Does it work on Milgard Tuscany sliding doors? A: Yes, needs one of those black spacers. The four short screws go into the double bolt on the door, while the three long screws go into the door frame with the catch mechanism. Q: Does it work on Anderson SilverLine sliding doors? A: No. None of the catch mechanisms that you screw into the frame have the correct length, even with all combinations of the spacers provided. You can force it to work by making your own spacers with flat metal washers, good luck with that.

A+

Serve the purpose