Best Window Locks & Latches of 2026

"I've found this product incredibly simple to install and it’s almost invisible once in place. The security it provides gives me peace of mind, and I even plan on getting another set for my mom. It's sturdy and the door doesn’t move at all when locked."

"As a parent, pool and child safety are my priorities. I was surprised by how effective and sturdy these are, especially since I was initially skeptical. Installation was a breeze, and after almost a year of daily use, I’m still satisfied, even though one mechanism eventually wore out. I’m definitely ordering more."

"I wanted a way to prevent my toddler from opening our sliding kitchen pantry door, and this lock works perfectly. The adhesive is strong, and it’s easy to use but keeps the door secure. The clear plastic makes it very discreet, and I’d recommend it to anyone."

"I found this window lock to be a simple yet highly effective way to add security to my basement windows. The thumb turn screw keeps everything tight, and I like that I can have the window slightly open for ventilation without sacrificing safety. No tools required for installation, which made the process quick and hassle-free."

"These locks delivered exactly what I needed – quick install, strong hold, and peace of mind. Once tightened, the window cannot be opened any further, which is perfect for setting a safe opening for airflow. If you want extra security for your home, these are a practical and reliable solution."

"I use these to keep my garage windows secure, especially when running my heater. Tried opening the window from both sides and it's impossible once the locks are in place. Simple and effective security that gives me confidence my windows are safe."

"These window locks were a breeze to install and have given me so much peace of mind. They grip the window well, and I’m not worried about them slipping."

"You really get excellent value for the money with these. They’re well made and I feel a lot safer now. The only minor issue is the padding, which tends to come off, but it wasn’t a dealbreaker for me. I’d recommend them and would buy again."

"I tried using these to secure my windows with AC units, but unfortunately, the rubber pads wouldn’t stay in place and the locks slipped off as soon as I tightened them. They didn’t work for my needs, so I’m returning them."

"I put these at the very top of my mirrored closet doors to keep my cat out, and they've worked flawlessly. The adhesive is super strong, even when I forget the lock is on and yank at the door. It’s a perfect solution for keeping pets out. Just remember to flip the lock arm, or you’ll run into it!"

"I was skeptical at first, but this product’s 3M adhesive exceeded my expectations. It’s easy to use—just flip up or down—and gives me peace of mind for both toddler safety and extra security. Make sure to clean the glass before applying, and don’t put it too high to avoid access issues. Great value for the price!"

"We use these on our sliding closet doors, and it’s been very effective at keeping our cat out. The glue is extremely strong and installation was a breeze. Definitely a solid choice for pet owners."

"I feel so much safer with these on our windows, especially with a curious child in the house. They were super simple to install and stay put. Now I don’t have to worry when we want some fresh air—the windows open just enough for safety. Highly recommend for other parents!"

"I bought these for my toddler’s room and they absolutely do the job. He can’t open the window at all now, and I have total peace of mind."

"I was impressed by how much force it took to push past these wedges—they really hold tight! They were easy to install on my old windows and also work well as window holders. Great value for the price."

"I was searching for a way to make my house more secure, and these vertical window locks are exactly what I needed. They’re super easy to install and provide excellent security—I’m truly glad I found them."

"With a busy family and young kids, I needed something to limit how far our windows open. These locks do the job perfectly. Installation took less than a minute, and the grip is tight and reliable. The black rubber piece is a thoughtful touch to help prevent scratches."

"I replaced a broken lock with this and was surprised by how sturdy and simple it is. My windows were fixed in just minutes, and the product feels very solid."

"I needed a way to keep my sliding glass window partially open for antenna cables without compromising security. These locks exceeded my expectations—they clamp down tight, are easy to install, and the included key helps avoid damaging the window frame. I used two for extra security and couldn't be happier with the purchase!"

"I've tried several stick-on window locks for baby-proofing, but this product is by far my favorite. It's simple to put on, easy to remove, and reusable whenever needed. I just wish I had discovered it sooner."

"The locks are solid and offer peace of mind—they fit perfectly, are simple to install, and really keep the window secure. I appreciate that they're easy to remove with the provided tool, but not without it. I've left a tool in the RV just in case. Highly recommended for anyone needing added security."

"I feel so much safer using these window locks in my bungalow, especially since some of our windows are easily accessible from outside. They’re super secure and allow me to keep the window open just enough for a breeze, but not enough for anyone to get in. The quality is solid, and I definitely recommend them for added peace of mind."

"After my toddler managed to open our apartment window, I immediately ordered these locks. Now, my grandson can't open the window at all, which is a huge relief. I’m grateful for how effective and reliable these locks are for child safety."

"I bought these to secure a window that needed to stay open for my portable air conditioner. The double heavy-duty locking screws really impressed me—they keep the window set exactly where I want it, so nobody can push it open further. These locks give me total peace of mind and I highly recommend them for both windows and sliding doors."

"I was looking for something to secure my toddler's bedroom window, and these locks gave me peace of mind immediately. Installation took only a minute, and the material feels practically unbreakable. The window can’t be opened unless you have the key, yet it’s easy to remove when needed. No damage to the window and a perfect fit—couldn’t be happier!"

"After trying flimsy alternatives, I switched to these, and the difference is night and day. The locks are made from thick, high-quality metal and come with multiple tools to ensure a snug fit, even in tight spots. They’re not an absolute guarantee against intrusion, but they add a solid layer of deterrence. Highly recommended for anyone wanting extra security."

"I got these for my college kid’s apartment and the security upgrade is obvious. The lock is easy to use and effective, but I did find the key a bit wide for tighter window spaces. I appreciated the included clear plastic that protects the window from marks. Overall, a reliable product that boosts my peace of mind."

"I was impressed by how easy it was to install this product—it fit my 2003 home’s window perfectly and I didn’t have to drill any extra holes. Quality is solid and it works just as expected. I’d definitely choose this again for replacements."

"These locks were super simple to put in place—they matched up with the old holes and took only 5 minutes to install. They feel secure and even look good on my window. I’m happy with how quickly they arrived too."

"I needed a replacement for a broken Pella lock. Although the hole pattern didn’t match, so I had to redrill, I was still able to get the window fixed. It’s been holding up well ever since."