Looking for the best window safety locks to keep your family secure? Our guide highlights the top 10 options, making it easy to choose the perfect lock for your home.
Window safety locks are a must-have for any home. They keep your family safe and give you peace of mind. Whether you have kids, pets, or just want extra security, the right locks make a big difference.
Choosing the best locks can feel tricky. There are many options, from key-operated to childproof designs. We’ve tested and compared top picks to help you decide.
Ready to find the perfect fit? Our guide makes it easy. You’ll learn about durability, installation, and features that matter most. Let’s get started!
List of Top 10 Window Safety Locks
| Image | Title | Best For | Price |
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ZRFCXE Window Locks,4 Pack Sliding Window Locks with Key for Vertical & Horizontal Sliding Windows Doors,Easv to Install,Adjustable Security Window Lock for Patio Bedroom Home and Office (Black) |
This window lock is perfect for anyone who wants to keep their family safe and protect their home. It’s great for parents, pet owners, or anyone who wants extra security for sliding windows or doors. |
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HYIEOU Sliding Window Locks (2 Sets), Secure Window Lock with Key, Window Locks for Up and Down Windows & Horizontal Sliding Windows, Adjustable Window Lock, Sturdy and Durable, Does Not Deform. |
This window lock is perfect for parents and pet owners who want to keep their loved ones safe. It’s also great for anyone looking for a sturdy, easy-to-install solution to secure sliding windows. |
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Toddleroo by North States – Window & Door Wedge Locks for Baby Proofing: Child Proof Window Locks – 4 Pack – White |
Parents and caregivers with curious toddlers will love these window and door wedge locks. They’re perfect for keeping little ones safe from sliding windows and doors. |
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HYIEOU Sliding Window Locks (6 Sets), Secure Window Lock with Key, Window Locks for Up and Down Windows & Horizontal Sliding Windows, Adjustable Window Lock, Sturdy and Durable, Does Not Deform. |
HYIEOU Sliding Window Locks are perfect for parents, pet owners, and anyone wanting extra security. They keep children and pets safe while allowing fresh air in. |
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Prime-Line U 9819 Aluminum, Sliding Window Security Lock (4 Pack) |
This Prime-Line U 9819 Aluminum Sliding Window Security Lock is perfect for anyone who wants to secure their metal sliding windows easily. It’s great for homeowners looking for simple, tool-free installation and flexible locking options. |
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Window Locks, 10 Pack for Vertical and Horizontal Windows, Adjustable Aluminum Stoppers, Window Security, No-Drill Install, Requires 28-36mm Clearance |
Window Locks are perfect for homeowners who want to secure their windows and doors without drilling. They’re great for families needing child-proof locks or anyone looking to protect their home from intruders. |
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ZRFCXE Window Locks,8 Pack Sliding Window Locks with Key for Vertical & Horizontal Sliding Windows Doors,Easv to Install,Adjustable Security Window Lock for Patio Bedroom Home and Office (Black) |
ZRFCXE Window Locks are perfect for anyone who wants to keep their family safe and protect their home. Whether you have kids, pets, or live in an area with heavy rain, these locks are easy to install and work great for sliding windows and doors. |
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Window Locks, 10 Pack for Vertical and Horizontal Windows, Sliding Window Locks, Adjustable Aluminum Stoppers, No-Drill Install, Fits Tracks up to 3/16″ Wide |
Perfect for homeowners, renters, and parents, these window locks are ideal for anyone looking to secure sliding doors and windows without drilling. They’re great for childproofing, protecting against intruders, or locking in AC units. |
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Sliding Window Locks (6 Sets), Security Window Locks with Keys, Adjustable Aluminum Sliding Window Stops, Easy Installation Without Drilling, for Vertical and Horizontal Sliding Windows (Silver) |
These sliding window locks are perfect for anyone who wants to keep their home safe. Whether you have kids, pets, or just want extra security, these locks are easy to install and work great for homes, apartments, or offices. |
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Safety Innovations – Childproof Your Windows and Sliding Doors with Our Window and Door Babyproof Safety Lock, (4-Pack) |
This product is perfect for parents who want to keep their babies safe. It’s great for homes with windows or sliding doors. |
Detailed Reviews
Discover the top 10 window safety locks chosen for reliability and ease of use. Each lock is expert-reviewed and backed by customer feedback, ensuring you find the perfect fit for your home. From childproofing to intruder protection, this guide has you covered—read on to secure your peace of mind.
1. ZRFCXE Window Locks,4 Pack Sliding Window Locks with Key for Vertical & Horizontal Sliding Windows Doors,Easv to Install,Adjustable Security Window Lock for Patio Bedroom Home and Office (Black)

Secure your home. These black locks fit most windows.
Twist the key to lock. Keep your family safe. The four pack installs fast.
| Pros | Cons |
|---|---|
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Perfect For:
This window lock is perfect for anyone who wants to keep their family safe and protect their home. It’s great for parents, pet owners, or anyone who wants extra security for sliding windows or doors.
Ready to Purchase?
2. HYIEOU Sliding Window Locks (2 Sets), Secure Window Lock with Key, Window Locks for Up and Down Windows & Horizontal Sliding Windows, Adjustable Window Lock, Sturdy and Durable, Does Not Deform.

Secure your windows with HYIEOU Sliding Window Locks. Two sets included for added safety.
Protects children and pets from accidental falls. Easy to install in just three steps. Fits vertical and horizontal windows for versatile use.
Made of durable aluminum alloy that won’t deform. Adjustable design ensures a perfect fit. Thoughtful after-sales service for peace of mind.
| Pros | Cons |
|---|---|
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Perfect For:
This window lock is perfect for parents and pet owners who want to keep their loved ones safe. It’s also great for anyone looking for a sturdy, easy-to-install solution to secure sliding windows.
Ready to Purchase?
3. Toddleroo by North States – Window & Door Wedge Locks for Baby Proofing: Child Proof Window Locks – 4 Pack – White

Keep your little ones safe with Toddleroo by North States Window & Door Wedge Locks. These childproof locks prevent windows and doors from opening too far, protecting curious toddlers from accidents.
Easy to install, these locks use a simple hook and loop system. They fit most sliding doors and windows without tools, screws, or damage.
Stylish and dependable, the white locks blend with any decor. They’re durable, removable in emergencies, and come in a 4-pack for complete coverage.
| Pros | Cons |
|---|---|
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Perfect For:
Parents and caregivers with curious toddlers will love these window and door wedge locks. They’re perfect for keeping little ones safe from sliding windows and doors.
Ready to Purchase?
4. HYIEOU Sliding Window Locks (6 Sets), Secure Window Lock with Key, Window Locks for Up and Down Windows & Horizontal Sliding Windows, Adjustable Window Lock, Sturdy and Durable, Does Not Deform.

Secure your windows with HYIEOU Sliding Window Locks. These 6 sets of locks fit both up-and-down and horizontal sliding windows. Made of sturdy aluminum alloy, they won’t deform and last long.
Protect your family with these child-safe locks. They reduce the risk of falls and let you partially open windows for ventilation. Easy to install in just 3 steps, no tools needed.
Measure your window track before buying to ensure a perfect fit. Enjoy thoughtful after-sales service for any issues. Stay safe and worry-free with HYIEOU locks.
| Pros | Cons |
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Perfect For:
HYIEOU Sliding Window Locks are perfect for parents, pet owners, and anyone wanting extra security. They keep children and pets safe while allowing fresh air in.
Ready to Purchase?
5. Prime-Line U 9819 Aluminum, Sliding Window Security Lock (4 Pack)

The Prime-Line U 9819 Aluminum Sliding Window Security Lock keeps your windows safe. It works for metal horizontal sliding windows. Use it to lock your window fully closed or slightly open.
It’s easy to install with no tools needed. The thumb turn screw keeps the lock secure. It fits rails up to 1/8 inch wide.
Made from strong aluminum and steel, it lasts a long time. Check the dimensions before buying to ensure it fits. This lock gives you flexibility and peace of mind.
| Pros | Cons |
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Perfect For:
This Prime-Line U 9819 Aluminum Sliding Window Security Lock is perfect for anyone who wants to secure their metal sliding windows easily. It’s great for homeowners looking for simple, tool-free installation and flexible locking options.
Ready to Purchase?
6. Window Locks, 10 Pack for Vertical and Horizontal Windows, Adjustable Aluminum Stoppers, Window Security, No-Drill Install, Requires 28-36mm Clearance

Secure your windows with these easy-to-install locks. They work for vertical and horizontal sliding windows. No drilling is needed, making setup quick and simple.
These locks are made of strong aluminum and have a vinyl lining to protect your frames. They’re great for childproofing and keeping your home safe.
| Pros | Cons |
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Perfect For:
Window Locks are perfect for homeowners who want to secure their windows and doors without drilling. They’re great for families needing child-proof locks or anyone looking to protect their home from intruders.
Ready to Purchase?
7. ZRFCXE Window Locks,8 Pack Sliding Window Locks with Key for Vertical & Horizontal Sliding Windows Doors,Easv to Install,Adjustable Security Window Lock for Patio Bedroom Home and Office (Black)

Secure your home with ZRFCXE Window Locks. These 8-pack locks are designed for sliding windows and doors.
Easy to install, no tools needed. Adjustable for a perfect fit. Protects against intruders and accidents.
Keep family safe from falls. Control window openings easily. Peace of mind for home and office.
| Pros | Cons |
|---|---|
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Perfect For:
ZRFCXE Window Locks are perfect for anyone who wants to keep their family safe and protect their home. Whether you have kids, pets, or live in an area with heavy rain, these locks are easy to install and work great for sliding windows and doors.
Ready to Purchase?
8. Window Locks, 10 Pack for Vertical and Horizontal Windows, Sliding Window Locks, Adjustable Aluminum Stoppers, No-Drill Install, Fits Tracks up to 3/16″ Wide

Secure your windows and doors with these 10-pack window locks. They work for vertical and horizontal sliding windows, patio doors, and sliding glass doors.
No tools needed for installation. Fits tracks up to 3/16″ wide with a rubber insert or 3/8″ without. Durable aluminum with vinyl lining prevents scratches.
Keep your family safe from intruders and accidents. Perfect for AC units, camper locks, or babyproofing. Lock windows and doors securely, even when slightly open.
| Pros | Cons |
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Perfect For:
Perfect for homeowners, renters, and parents, these window locks are ideal for anyone looking to secure sliding doors and windows without drilling. They’re great for childproofing, protecting against intruders, or locking in AC units.
Ready to Purchase?
9. Sliding Window Locks (6 Sets), Security Window Locks with Keys, Adjustable Aluminum Sliding Window Stops, Easy Installation Without Drilling, for Vertical and Horizontal Sliding Windows (Silver)

Secure your sliding windows with these easy-to-install locks. No drilling needed—just place, tighten, and you’re done. Fits most vertical and horizontal windows with a simple track measurement.
Enhanced security features keep your home safe. Thick aluminum alloy ensures durability, while a key separation design prevents unauthorized access. Protective washers prevent window damage, adding extra peace of mind.
Versatile and reusable, these locks work for homes, offices, and more. Control window openings to keep kids and pets safe. Quick installation with included tools.
| Pros | Cons |
|---|---|
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Perfect For:
These sliding window locks are perfect for anyone who wants to keep their home safe. Whether you have kids, pets, or just want extra security, these locks are easy to install and work great for homes, apartments, or offices.
Ready to Purchase?
10. Safety Innovations – Childproof Your Windows and Sliding Doors with Our Window and Door Babyproof Safety Lock, (4-Pack)

Keep your baby safe with our Window and Door Safety Stop. It locks windows and sliding doors to prevent accidents. Simple sliding motion makes it easy to use.
No screws, no drilling, no mess. Just peel and stick with strong 3M tape. Quick install means less stress for busy parents.
Double up for extra safety. Use two locks on each window or door. Peace of mind for you, safety for your little one.
| Pros | Cons |
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Perfect For:
This product is perfect for parents who want to keep their babies safe. It’s great for homes with windows or sliding doors.
Ready to Purchase?
Buying Guide
Window safety locks keep your family safe and give peace of mind. They’re a must-have for any home.
Choosing the right locks can feel tricky, but we’re here to help. Here’s what to consider:
- Type of Lock: Decide between key-operated or childproof designs. Key locks offer extra security, while childproof locks are easy to use and safe for kids.
- Window Compatibility: Check if the lock fits vertical or horizontal windows. Some work for both, like the ZRFCXE and HYIEOU locks.
- Installation: Look for no-drill or easy-install options. Locks like Toddleroo and Safety Innovations use 3M tape or hook and loop for quick setup.
- Material: Choose durable materials like aluminum alloy or steel. They last longer and won’t deform, as seen in HYIEOU and Prime-Line locks.
- Adjustability: Adjustable locks fit different window sizes. The Window Locks 10 Pack and ZRFCXE 8 Pack offer this feature.
- Pack Size: Buy multi-packs for full coverage. Options like 6 sets or 10 packs save time and money.
- Safety Features: Look for locks that prevent falls and control openings. Childproof locks like Toddleroo are great for kids and pets.
- After-Sales Service: Brands like HYIEOU offer thoughtful support for any issues.
With these tips, you’ll find the perfect window safety locks for your home. Stay safe and worry-free!