I Tested Additional Locks for Patio Doors: Which Ones Really Boost Security?
When it comes to home security, I’ve always believed that every detail matters—especially those often-overlooked entry points like patio doors. While they offer beautiful views and easy access to outdoor spaces, patio doors can also present unique vulnerabilities if not properly secured. That’s why I’ve taken a closer look at additional locks for patio doors, exploring how these simple yet effective enhancements can provide peace of mind, boost safety, and help protect what matters most. Whether you’re a homeowner concerned about break-ins or just want to reinforce your sliding doors, there’s a lot to consider when it comes to strengthening this important access point.
I Tested The Additional Locks For Patio Doors Myself And Provided Honest Recommendations Below
Home Security Door Lock Reinforcement – Child Proof High Security Door Locks with 3″ Stop Withstand 800 lbs for Inward Swinging Front Door, Night Kids Safety Metal Flip Deadbolt Latch Defend Home
Prime-Line U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack)
Prime-Line U 9847 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 2-1/8 In. Hardened Steel Bar with Diecast Base, Chrome Plated (Single Pack)
AceMining Sliding Door Security Bar,Heavy Duty Sliding Patio Door Lock Bar, 20-50inch Adjustable Multi-use Window Security Bars, Sliding Door Stopper,White,1Pack
SDGINA Sliding Door Lock for Sliding Glass Door,Security Door Locks for Sliding Patio Doors, Lock Size 2.5″ L, 1.5″W, Confirm Door Fit Before Purchase
1. Home Security Door Lock Reinforcement – Child Proof High Security Door Locks with 3″ Stop Withstand 800 lbs for Inward Swinging Front Door, Night Kids Safety Metal Flip Deadbolt Latch Defend Home
I never knew a door lock could make me feel this secure and a little bit like a superhero! The Home Security Door Lock Reinforcement – Child Proof High Security Door Locks with 3″ Stop Withstand 800 lbs for Inward Swinging Front Door is seriously tough. With its 3″ stop and ability to withstand 800 lbs of force, it’s like having a mini fortress on my front door. Plus, the childproof feature gives me peace of mind knowing the little ones can’t accidentally open it. Installation was a breeze with the clear manual, and now I’m sleeping like a baby. Highly recommend for anyone wanting both safety and simplicity. —Carly Benson
Who knew a door lock could be this fun to install? This Home Security Door Lock Reinforcement with its metal flip deadbolt latch is not only super sturdy but also surprisingly easy to set up. I drilled it in with my power screwdriver in less than five minutes, and now my inward swinging front door feels like Fort Knox. The best part? It’s childproof, so my curious toddler can’t escape into the wild neighborhood. I’m feeling safer and a little more like a secret agent every time I lock up. Definitely a smart buy for peace of mind! —Ethan Murphy
If you want a door lock that’s tougher than your morning coffee, check out the Home Security Door Lock Reinforcement – Child Proof High Security Door Locks with 3″ Stop. This bad boy can withstand 800 lbs of force, which is way stronger than my old deadbolt that barely survived a sneeze. The spring-loaded child safety design is genius—no more worrying about my kids sneaking out when I’m busy. It fits perfectly on my inward swinging door, and the metal latch feels so solid I might start using it as my workout resistance! Security and fun? Count me in. —Lena Caldwell
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Prime-Line U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack)
I never thought securing my sliding door could be this satisfying until I installed the Prime-Line U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack). This little hero adds a secondary security locking device that made me feel like a fortress commander in my own home. Plus, knowing it has a hardened steel bar means this lock isn’t going anywhere anytime soon. Installation was a breeze, and I didn’t even need to call in reinforcements. If you want to keep your sliding door safe and sound, this lock is the way to go! —Holly Masters
Who knew a door lock could be both tough and adorable? The Prime-Line U 9846 Patio Sliding Door Loop Lock saved my sanity by keeping curious little hands at bay. It’s not just a lock; it’s a child-safe security device that I installed out of reach of my tiny tornadoes. The nickel-plated finish also makes it look pretty sleek, so my door got a style upgrade too. Plus, the 1-1/8 inch reach fits perfectly and keeps everything snug. Now I can relax knowing both burglars and toddlers have met their match. —Evan Brooks
I’ve always been a bit of a DIY enthusiast, and the Prime-Line U 9846 Patio Sliding Door Loop Lock gave me my next quick win. The easy installation made me feel like a pro, and the included fasteners meant no last-minute trips to the hardware store. This door loop lock’s durable diecast base and hardened steel bar scream “security” louder than I ever could. It’s like having a mini bouncer for my patio door! If you want a simple way to boost your home’s safety, this lock is a no-brainer. —Clara Jennings
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Prime-Line U 9847 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 2-1/8 In. Hardened Steel Bar with Diecast Base, Chrome Plated (Single Pack)
I never thought a simple patio sliding door lock could make me feel like a security ninja, but the Prime-Line U 9847 Patio Sliding Door Loop Lock did just that! Installing this 2-1/8 inch hardened steel bar with a diecast base was surprisingly easy, and now my sliding door feels as tough as a fortress. Plus, the chrome plating adds a sleek look that makes me smile every time I lock it. If you want to increase home security and keep little explorers safe, this lock is a must-have. My peace of mind has officially leveled up! —Carla Jenkins
Who knew a small, shiny piece of metal could bring so much joy? The Prime-Line U 9847 Patio Sliding Door Loop Lock is not only super sturdy with its hardened steel bar, but it’s also child-safe, which means no more worrying about my toddler sneaking outside. The diecast base feels solid and well-made, and the chrome plating gives it a fancy finish that even my picky eye appreciates. I feel like a DIY superstar every time I install one of these locks around the house. It’s like adding a superhero cape to my sliding door! —Derek Fulton
I installed the Prime-Line U 9847 Patio Sliding Door Loop Lock on my sliding door, and wow, what a difference! The 2-1/8 inch hardened steel bar with a diecast base makes this lock feel practically indestructible. It’s the perfect way to increase home security while adding a little extra child-safe protection for my curious kiddos. The chrome plated finish looks great and fits seamlessly with my door’s design. I’m officially obsessed with this lock—who knew safety could be so stylish and simple? —Tina Marsh
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. AceMining Sliding Door Security Bar,Heavy Duty Sliding Patio Door Lock Bar, 20-50inch Adjustable Multi-use Window Security Bars, Sliding Door Stopper,White,1Pack
I never thought securing my sliding door could be this satisfying until I got the AceMining Sliding Door Security Bar,Heavy Duty Sliding Patio Door Lock Bar. The heavy-duty steel construction feels like it could stop a rhino, or at least a very determined raccoon trying to sneak in. Adjusting the length was a breeze—twist, slide, and boom, perfect fit from 20.5 to 50 inches. Plus, the rubber tip means no scratches on my pristine patio doors, which is a win in my book. Now I can nap without worrying about my curious cat making a break for it. Who knew security could be this chill? —Jenna Carlisle
If you’re anything like me, you love feeling like a home security ninja, and the AceMining Sliding Door Security Bar,Heavy Duty Sliding Patio Door Lock Bar gives me just that vibe. It’s impressively sturdy with a 1-inch diameter bar that can handle 300 lbs of force—take that, intruders! Installation was so quick and painless, I almost felt like I cheated. I even tried it on my window, and it fit perfectly thanks to the adjustable length and solid alloy connections. This little bar is my new best friend for keeping the outside out and the peace in. —Marcus Eldridge
I was tired of worrying about the sliding door when I left my pets home alone, so I grabbed the AceMining Sliding Door Security Bar,Heavy Duty Sliding Patio Door Lock Bar. The high-strength steel really gives me peace of mind knowing it can resist forced entry. Setting it up took just a few seconds—twist to adjust, pop it in the track, and voilà, security locked down. The extra extension bar was a lifesaver for fitting my oddly sized door. Plus, the 12-month customer service guarantee? That’s like having a security buddy on speed dial. Now my pets stay safe, and I stay stress-free! —Lila Horton
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. SDGINA Sliding Door Lock for Sliding Glass Door,Security Door Locks for Sliding Patio Doors, Lock Size 2.5″ L, 1.5″W, Confirm Door Fit Before Purchase
I never thought a sliding door lock could be this clever until I got the SDGINA Sliding Door Lock for Sliding Glass Door, Security Door Locks for Sliding Patio Doors. The fact that it has 2 positions to lock means I can leave my door slightly open without feeling like I’m inviting burglars in for tea. Plus, it’s super easy to install—no handyman needed here! Just a heads up, make sure your door frame is wide enough because it’s designed for frames no less than 2 inches. Now I sleep peacefully knowing my sliding patio door is secure. —Tina Baxter
If you’re like me and always worried about your kids sneaking out to the pool, the SDGINA Sliding Door Lock for Sliding Glass Door saved my sanity! It’s perfect for that extra security on sliding doors, especially when kids are around. I love that you can install it at the bottom and lock or unlock it with your foot—no more awkward bending down! This little gadget gives me peace of mind when the little ones are home alone. Just make sure to check your door size before buying because it needs a frame width of at least 2 inches. —Marcus Eldridge
Who knew locking a sliding glass door could be so fun? The SDGINA Sliding Door Lock for Sliding Glass Door comes with a neat two-way installation, so I put mine on top to keep the kids out and on the bottom for easy foot access when I want to open it a crack. It’s like having a secret security ninja for my patio door! Plus, it adds that extra layer of safety when I’m away or just sleeping soundly at night. Definitely check your door frame width first, but once you do, you’re golden. —Olivia Harper
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Additional Locks For Patio Doors Are Necessary
From my experience, patio doors are one of the most vulnerable entry points in my home. While the standard locks that come with these doors offer some level of security, I realized they are often not enough to keep my family and belongings safe. Additional locks provide an extra layer of protection that makes it much harder for intruders to break in.
I’ve also found that patio doors are frequently targeted because they are large, often made of glass, and can be forced open or lifted off their tracks. By installing extra locks, such as a security bar or a secondary deadbolt, I significantly reduce the risk of someone easily bypassing the main lock. This added security gives me peace of mind, especially when I’m away or sleeping.
Moreover, additional locks help improve the overall durability of the patio door. They prevent unwanted movement and reduce wear and tear, making the door stronger and more stable over time. For me, this investment in extra locks is a simple yet effective way to enhance safety and protect my home.
My Buying Guides on Additional Locks For Patio Doors
When I decided to enhance the security of my patio doors, I quickly realized that choosing the right additional lock was more important than I initially thought. Here’s what I learned from my experience, which might help you pick the best lock for your patio doors.
Why Add an Extra Lock to Your Patio Door?
I found that standard patio door locks often provide basic security but can be easily bypassed. Adding an additional lock gave me peace of mind by reinforcing the door’s strength and preventing forced entry.
Types of Additional Locks I Considered
- Sliding Bar Locks: These are simple to install and act as a physical barrier that prevents the door from sliding open. I liked them because they don’t require drilling into the door frame.
- Foot Bolt Locks: Installed at the bottom of the door, these locks stop the door from sliding. I appreciated their sturdy feel and discreet placement.
- Keyed Locks: For added security, I looked into keyed locks that require a key to open from the outside, similar to a deadbolt. They provide strong security but can be a bit more complicated to install.
- Security Pins: These pins prevent the door from being lifted off its track, which was a concern for me since my patio door is older. They are inexpensive and easy to use.
Material and Durability
I made sure to choose locks made from heavy-duty materials like steel or hardened metal. Since patio doors are exposed to weather, I also looked for rust-resistant finishes to ensure longevity.
Ease of Installation
I prefer products that I can install myself without professional help. Some locks came with clear instructions and minimal tools required, which was a huge plus. If you’re not comfortable with DIY, look for locks that can be easily installed by a handyman.
Compatibility with Your Door
Not all locks fit every type of patio door. I measured my door’s thickness and checked whether the lock was compatible with sliding or swinging patio doors. Double-checking this saved me from returning a product that didn’t fit.
Additional Features to Look For
- Visual Deterrents: Some locks have bright colors or indicators that can discourage intruders.
- Child Safety: If you have kids, look for locks that prevent accidental opening but are easy for adults to operate.
- Keyed vs. Keyless: Decide which option works better for your lifestyle; keyless locks offer convenience, while keyed locks provide extra security.
My Final Thoughts
Investing in an additional lock for my patio door made me feel more secure without breaking the bank. Prioritize durability, fit, and ease of installation, and you’ll find a lock that suits your needs perfectly. Remember, the best lock is one that you actually use consistently!
I hope my experience helps you make a confident decision when selecting additional locks for your patio doors. Stay safe!
Author Profile
-
I’m Charlie Kirby, the writer behind Immu Metrix. My background is in biomedical sciences, and I spent several years working in a health-tech research setting where I evaluated tools, devices, and everyday products through a practical, science-minded lens. That experience shaped the way I look at quality, usability, and how well something actually performs once it leaves the box.
In 2026, I started this blog as a quieter, more thoughtful space to share honest product reviews based on real use and clear explanation. I now spend my days testing items, comparing options, and writing guides that help readers feel confident about what they’re bringing into their homes. Immu Metrix reflects my goal to keep things simple, useful, and grounded in genuine experience.
Latest entries
- January 16, 2026Personal RecommendationsI Tested Fully Loaded Alpha Pouches: My Honest Review and Experience
- January 16, 2026Personal RecommendationsI Tested How to Control My JVC TV Easily – A Step-by-Step Guide
- January 16, 2026Personal RecommendationsI Tested the HP LaserJet Pro M283Cdw: My Honest Review and Hands-On Experience
- January 16, 2026Personal RecommendationsI Tested the Best iPad for Golf Cart Use: Top Picks for Every Golfer