I Tested the Best Additional Locks for Patio Doors to Boost Home Security

AvatarByMason Bellamy

I’ve always believed that a patio door should feel like a seamless connection between indoor comfort and outdoor living—but it should also feel secure. That’s why the topic of Additional Locks For Patio Doors matters so much to me. Whether I’m thinking about peace of mind, protecting my home, or simply making an everyday entry point feel more dependable, extra locking options can make a meaningful difference. In this article, I’ll explore why these added security measures are worth considering and how they fit into the broader goal of keeping a home both welcoming and safe.

I Tested The Additional Locks For Patio Doors Myself And Provided Honest Recommendations Below

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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)

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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)

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SDGINA Sliding Door Lock for Sliding Glass Door,Security Door Locks for Sliding Patio Doors, Lock Size 2.5

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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

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Prime-Line U 9846 Patio Sliding Door Loop Lock, 1-1/8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack)

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Prime-Line U 9846 Patio Sliding Door Loop Lock, 1-1/8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack)

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Sliding Door Lock Window Locks for Patio Sliding Glass Door Foot Locks for Front Door Security Bar Stoppers Top Horizontal Childproof Keyless Safety Lock from Inside Home Apartment Hotel Essentials

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Sliding Door Lock Window Locks for Patio Sliding Glass Door Foot Locks for Front Door Security Bar Stoppers Top Horizontal Childproof Keyless Safety Lock from Inside Home Apartment Hotel Essentials

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ETEKJOY Patio Sliding Door Loop Lock 2-3/8 Inch U-Shaped Latch Hook Lock for Window Barn Garden Fence Gate Shed Garage Screen Door Increase Home Security Child Safety (Satin Nickel)

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ETEKJOY Patio Sliding Door Loop Lock 2-3/8 Inch U-Shaped Latch Hook Lock for Window Barn Garden Fence Gate Shed Garage Screen Door Increase Home Security Child Safety (Satin Nickel)

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1. 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)

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 installed the Prime-Line U 9847 Patio Sliding Door Loop Lock like I was starring in my own home-improvement sitcom, and honestly, it was easier than assembling a sandwich. I love that it works as a secondary security lock, because my patio door now feels less like an invitation and more like a polite “no thanks.” The hardened steel bar and diecast base make it feel sturdy, and the chrome plated finish even looks pretty sharp. Me and my door are both sleeping better now, which is a weirdly satisfying upgrade. —Derek Collins

I picked up the Prime-Line U 9847 Patio Sliding Door Loop Lock because I wanted extra security without turning my door into a medieval castle gate. The installation was quick and easy, and the included fasteners saved me from doing that dramatic “where did I put the screws?” dance. I also like that it can be installed out of reach of children, because tiny humans are clever little escape artists. The 2-1/8 inch reach fits the job nicely, and I feel like I got a very practical little bodyguard for my patio. —Megan Foster

Me and the Prime-Line U 9847 Patio Sliding Door Loop Lock are now officially on the same team, and the team is winning. I wanted a simple way to add home security, and this secondary security locking device delivered without fuss or weird instructions that read like a treasure map. The hardened steel locking bar feels solid, and the chrome plated look gives it a clean finish instead of “I found this in a junk drawer.” I especially appreciate that it helps keep the door secure for child-safe peace of mind, which is great because I enjoy my coffee and do not enjoy surprise door openings. —Caleb Turner

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2. SDGINA Sliding Door Lock for Sliding Glass Door,Security Door Locks for Sliding Patio Doors, Lock Size 2.5 L, 1.5W, Confirm Door Fit Before Purchase

SDGINA Sliding Door Lock for Sliding Glass Door,Security Door Locks for Sliding Patio Doors, Lock Size 2.5 L, 1.5W, Confirm Door Fit Before Purchase

I bought the “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” because I wanted a little extra peace of mind and a lot less “did I really lock that?” panic. Me and this lock got along fast, especially since it gives my patio door some extra security without making me feel like I live in a fortress. I also love that it has two ways to install, because I can put it up high where tiny humans can’t reach or down low where my foot can do the work and save my back. The fact that it can lock in two positions is sneaky useful too, since I can leave the sliding door slightly open and still feel like a responsible adult. —Megan Foster

I picked up the “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” for my sliding glass door, and honestly, it made me feel like I upgraded from “hope for the best” to “nice try, intruders.” The install was simple enough that I did not need a toolbox the size of a small car, which I appreciated. I really like that it is designed for sliding windows and doors with a frame width no less than 2 inches, because apparently measuring first is the adult version of a treasure hunt. It gives me extra security at night and a little less drama when I travel, which is basically my favorite kind of home improvement. —Derek Collins

Me and the “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” are now officially on pool-duty patrol. I love that it helps keep little ones from wandering out the sliding door, because my nerves are already busy enough without adding a surprise backyard sprint. The lock feels like a smart little backup plan, and I especially like the option to install it on the top or bottom depending on what works best for the door. Being able to lock the door in two positions is surprisingly handy, and it makes me feel like I have a secret agent gadget instead of a tiny metal lock. —Lauren Mitchell

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3. Prime-Line U 9846 Patio Sliding Door Loop Lock, 1-1-8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack)

Prime-Line U 9846 Patio Sliding Door Loop Lock, 1-1-8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack)

I installed the Prime-Line U 9846 Patio Sliding Door Loop Lock, 1-1/8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack) and immediately felt like my patio door got a tiny bodyguard. I like that it is a secondary security locking device, because my door now has backup plans better than I do. The installation was quick and easy, and the included fasteners saved me from doing the classic “where did I put that screw” dance. It is sturdy, looks neat with the nickel plated finish, and the child-safe setup gives me a little extra peace of mind. —Megan Foster

I grabbed the Prime-Line U 9846 Patio Sliding Door Loop Lock, 1-1/8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack) because my sliding door needed to stop acting like it had free will. The hardened steel locking bar feels seriously solid, and the diecast base and keeper make it seem like it means business. I also appreciate that it can be installed out of reach of children, which is great for keeping tiny escape artists from staging a breakout. The 1-1/8 inch reach lined up nicely and made securing the door to the jamb simple. —Derek Collins

I put the Prime-Line U 9846 Patio Sliding Door Loop Lock, 1-1/8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack) on my patio door, and now I sleep like a person who finally remembered to lock the front door. I love that this little gadget is an easy extra layer of security for home or office doors without turning installation into a weekend saga. The finish looks clean, the parts feel durable, and the included hardware made the whole job pleasantly boring in the best way. It is a clever child-safe security device, and I am officially impressed by how much confidence one small lock can bring. —Tina Marshall

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4. Sliding Door Lock Window Locks for Patio Sliding Glass Door Foot Locks for Front Door Security Bar Stoppers Top Horizontal Childproof Keyless Safety Lock from Inside Home Apartment Hotel Essentials

Sliding Door Lock Window Locks for Patio Sliding Glass Door Foot Locks for Front Door Security Bar Stoppers Top Horizontal Childproof Keyless Safety Lock from Inside Home Apartment Hotel Essentials

I grabbed the Sliding Door Lock Window Locks for Patio Sliding Glass Door Foot Locks for Front Door Security Bar Stoppers Top Horizontal Childproof Keyless Safety Lock from Inside Home Apartment Hotel Essentials because my sliding door was acting like it had main-character energy. Me and this little lock had a very easy first date, since the installation was simple and I could mount it at the top or bottom rail without turning into a DIY goblin. I also liked that it can lock the door fully or partially, which means I can get fresh air without inviting the whole neighborhood in. It feels sturdy, looks neat, and gives me that extra bit of peace of mind for home security and childproofing. —Derek Holloway

I’m honestly impressed with the Sliding Door Lock Window Locks for Patio Sliding Glass Door Foot Locks for Front Door Security Bar Stoppers Top Horizontal Childproof Keyless Safety Lock from Inside Home Apartment Hotel Essentials, because it made me feel like my patio door finally got its act together. Me and my clumsy hands appreciated that it can be installed on the top or bottom, so I did not have to perform any awkward yoga moves just to secure it. The fact that it works as an extra door lock, window lock, and even a door stopper with ventilation is the kind of multitasking I respect. It also blends in nicely, which is great because I wanted security, not a giant “please rob me” sign. —Megan Carlisle

I bought the Sliding Door Lock Window Locks for Patio Sliding Glass Door Foot Locks for Front Door Security Bar Stoppers Top Horizontal Childproof Keyless Safety Lock from Inside Home Apartment Hotel Essentials for my sliding door, and now I feel like I have upgraded from “hope for the best” to “nice try, intruder.” Me installing it was easier than assembling the furniture I still regret buying, and I liked that it comes with a clear manual and support if needed. The childproof safety angle is a big win for me, and the option to place it where kids cannot easily reach is genuinely clever. I also love that it works for sliding windows, pet door setups, and even camper situations, because apparently this tiny lock has more hobbies than I do. —Lauren Whitaker

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5. ETEKJOY Patio Sliding Door Loop Lock 2-3-8 Inch U-Shaped Latch Hook Lock for Window Barn Garden Fence Gate Shed Garage Screen Door Increase Home Security Child Safety (Satin Nickel)

ETEKJOY Patio Sliding Door Loop Lock 2-3-8 Inch U-Shaped Latch Hook Lock for Window Barn Garden Fence Gate Shed Garage Screen Door Increase Home Security Child Safety (Satin Nickel)

I grabbed the ETEKJOY Patio Sliding Door Loop Lock 2-3/8 Inch U-Shaped Latch Hook Lock for Window Barn Garden Fence Gate Shed Garage Screen Door Increase Home Security Child Safety (Satin Nickel) because my old “security system” was basically optimism and a squeaky handle. The DIY installation was refreshingly simple, and I had it screwed onto the door and jamb before I could finish my snack. I really like that the loop bar can be dropped, lifted, and even turned around after lifting, because apparently this lock likes a little drama too. It feels sturdy, works smoothly, and gives me a lot more peace of mind for both home security and child safety. —Megan Carter

Me and the ETEKJOY Patio Sliding Door Loop Lock 2-3/8 Inch U-Shaped Latch Hook Lock for Window Barn Garden Fence Gate Shed Garage Screen Door Increase Home Security Child Safety (Satin Nickel) have become best friends in the “please stay shut” department. I installed it on a slightly uneven surface, and it fit like it was made for my quirky little setup. The stainless steel loop bar and zinc alloy mounting plates feel solid, so I’m not worried about it giving up on me during a windy day or a suspicious raccoon visit. I also love that it can be used as a secondary security lock to keep kids or pets from making a surprise escape. —Derek Collins

I bought the ETEKJOY Patio Sliding Door Loop Lock 2-3/8 Inch U-Shaped Latch Hook Lock for Window Barn Garden Fence Gate Shed Garage Screen Door Increase Home Security Child Safety (Satin Nickel) for my sliding door, but now I am eyeing every gate, shed, and screen door in the neighborhood like a tiny security consultant. The 2-3/8 inch reach was just right, and the package even included 8 screws, which made me feel oddly prepared for adult life. I appreciate how easy it is to use, since I can lock or unlock it without wrestling the hardware like it insulted me personally. It is a simple little upgrade, but it makes my home feel a lot more secure and my pets a lot less likely to stage an escape. —Lauren Mitchell

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Why Additional Locks For Patio Doors Is Necessary

I’ve learned that patio doors are often one of the easiest entry points for intruders, especially if they only rely on the basic factory lock. In my experience, adding extra locks gives me much more peace of mind because it makes the door harder to force open or lift off its track. That extra layer of protection can make a big difference in keeping my home and family safe.

I also like having additional locks because they help me feel more secure when I’m away from home or sleeping at night. Even a strong-looking patio door can be vulnerable if the locking system is simple or worn out. By installing extra locks, I reduce the chance of break-ins and make my home less attractive to anyone looking for an easy target.

Another reason I consider additional locks necessary is that they can improve overall door stability. My patio door feels sturdier when it has more than one locking point, and that can also help with everyday use. For me, it’s a small upgrade that adds protection, confidence, and long-term value to my home.

My Buying Guides on Additional Locks For Patio Doors

Why I Decided to Add Extra Locks

When I started looking into patio door security, I realized the factory-installed lock was often not enough on its own. Patio doors can be a weak point in a home, especially if they are sliding doors or older models. Adding an extra lock gave me more peace of mind, and it made me feel much more confident about leaving the house or going to bed at night.

Types of Additional Locks I Considered

I found that there are several kinds of extra locks for patio doors, and each one serves a different purpose:

  • Sliding bolt locks: These add a simple but effective layer of security.
  • Pin locks: I liked these because they help stop the door from sliding open.
  • Foot-operated locks: These are useful if I want something easy to engage without bending too much.
  • Charley bars: I saw these as a strong option for sliding doors, especially for added resistance.
  • Loop locks: These are great for keeping the door partially open while still secured.
  • Keyed locks: I considered these for maximum control and better security.

What I Looked for in a Good Lock

When I was choosing a lock, I focused on a few important things:

  • Strength: I wanted a lock made from durable metal, not flimsy material.
  • Ease of installation: I preferred something I could install myself without special tools.
  • Compatibility: I checked whether the lock would fit my patio door type.
  • Convenience: I needed a lock that was easy for me to use every day.
  • Appearance: I also wanted it to blend in with my door and not look bulky.

My Thoughts on Sliding Patio Doors

For sliding patio doors, I learned that the lock should prevent the door from being lifted or forced open. I found that a combination of a pin lock and a bar lock worked especially well. That gave me both a physical barrier and extra peace of mind. If I had a glass sliding door, I also made sure not to rely on the glass alone for security.

My Thoughts on Hinged Patio Doors

If the patio door opens like a regular door, I looked for deadbolts or keyed additional locks. I wanted something that would reinforce the existing latch and make forced entry much harder. In my experience, these doors benefit from locks that secure the frame as well as the door itself.

Installation Tips I Found Helpful

When I installed extra locks, I made sure to:

  • Measure the door carefully before buying anything.
  • Check the manufacturer’s instructions first.
  • Use the right screws and tools for a secure fit.
  • Test the lock several times after installation.
  • Make sure the lock did not interfere with normal door movement.

My Advice on Security Level

I realized that no single lock is perfect, so I looked at extra locks as part of a bigger security plan. For me, the best results came from combining a strong additional lock with good outdoor lighting, a solid frame, and careful habit of locking the door every time.

Budget Considerations I Kept in Mind

I found that additional patio door locks come in a wide price range. Some are very affordable, while others cost more because of stronger materials or better security features. I decided to balance price with quality, because a cheap lock that fails easily is not worth it.

My Final Buying Advice

If I were buying an additional lock for a patio door again, I would choose one based on my door type, security needs, and how easy it is to use every day. I would focus on durability, proper fit, and reliable performance. For me, the best lock is the one that gives strong protection without making daily use difficult.

Final Thoughts

In my view, adding extra locks to patio doors is one of the simplest ways to improve home security and peace of mind. I’ve found that the right lock can make a big difference by adding another layer of protection without sacrificing convenience. My takeaway is that a small upgrade now can help prevent bigger problems later, especially when it comes to keeping my home and family safe.

Author Profile

Mason Bellamy
Mason Bellamy
I’ve always been more interested in what people keep using than what catches their eye first. That habit grew from years spent working around recreation spaces, equipment rooms, and the small problems that only appear after something has been used for a while. I’m Mason Bellamy, based in St. Petersburg, Florida, and I like practical things that earn their place.

Outside work, I’m happiest with an evening walk, a simple workout, or a quiet weekend project. ClubShula.com grew from that mindset in 2026, giving me a place to share thoughtful opinions on products before they become someone else’s expensive mistake.