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Ensuring your home is secure starts with choosing the best window locks. In 2025, the right window locks can provide both protection and peace of mind, preventing unauthorized access and enhancing your home’s security.
To help you make an informed choice, we’ve rounded up the 7 best window locks, along with our top 2 choices for security this year. Whether upgrading or replacing existing locks, these options offer top-tier protection, durability, and ease of use.
Our Top Picks:
Which Window Locks are the Best?
Window locks are essential for deterring burglars and preventing accidental openings. They enhance home security and provide peace of mind, especially in homes with children or on ground floors.
The primary benefit of a window lock is improved home security. It makes windows harder to open, preventing break-ins and offering safety for children while maintaining overall peace of mind.
Consider window type, material compatibility, ease of installation, locking mechanism, security level, and aesthetics before choosing a window lock. These factors ensure the lock fits your needs and offers optimal protection.
To create this list of the best window locks of 2025, we researched top-rated window locks, focusing on security, compatibility, ease of use, durability, and customer reviews. Our list offers a range of options tailored to different window types and needs.
Best Overall
AUSWAUR Window Lock
Pros:
- Works with most sliding windows and doors.
- Strong aluminum build enhances security.
- Quick, tool-free installation.
Cons:
- Only fits specific track sizes.
- May need to adjust some windows.
AUSWAUR Window Lock offers durable construction, a user-friendly design, and reliable performance. This makes it suitable for everyday use in homes or on the go.
Key Features:
- Fits window tracks over 0.48″ high and under 0.61″ wide for broad compatibility.
- Reinforced aluminum alloy body with two-hole mounting for added strength.
- Includes a protective washer to prevent scratching the window frame.
- Simple, no-drill 3-step installation using included vertical and hex keys.
- Compact and portable—ideal for travel, hotels, and temporary accommodations.
What Verified Shoppers Are Saying:
Customers say these locks install easily, offer reliable security, and deliver good value. Some mention a perfect fit, while others experience sizing issues. One user says the locks help protect their family.
Best Window Locks for Vertical Windows
BMEWKOS Window Lock
Pros:
- Dual-hole lock boosts stability.
- The protective washer prevents scratches.
- Allows full or partial locking.
Cons:
- Fits narrow tracks only.
- May require precise alignment.
BMEWKOS Window Lock ensures a secure fit for sliding and vertical windows while offering added stability and protective padding. It allows you to lock windows fully or leave them partially open for ventilation.
Key Features:
- Designed for window tracks under 0.39″ wide and over 0.31″ high.
- Double-hole locking system enhances grip and overall security.
- A rubber washer increases friction and prevents track damage.
- Comes with both hex and vertical wrenches for flexible installation.
- Useful for homes, apartments, offices, or travel safety needs.
What Verified Shoppers Are Saying:
Customers like the durable design, easy installation, and useful safety features. The included bottle opener/hex wrench impresses one user. Several reviewers note the locks are larger than expected but still functional.
Best Window Locks for Sliding Windows
ZRFCXE Window Lock
Pros:
- Prevents child and pet accidents.
- Includes scratch-resistant padding.
- Simple and reusable setup.
Cons:
- Limited size compatibility.
- Not ideal for worn-out tracks.
ZRFCXE Window Lock offers enhanced protection for homes with children, pets, or valuables. Its stable, padded design prevents accidents while maintaining airflow when desired.
Key Features:
- Requires window tracks over 0.48″ high and under 0.61″ wide.
- Double-screw design improves holding power on heavy windows.
- Built-in protection pad minimizes wear on window frames.
- Controls window position for partial opening or full closure.
- Fast, tool-free setup—reuse and reposition with ease.
What Verified Shoppers Are Saying:
Customers praise the fast installation, solid build, and reliable security. Many highlight the snug fit and usefulness on vinyl frames. The special tightening key and long-term value are appreciated by most.
Best Window Locks for Apartments
FIRAWER Window Lock
Pros:
- Rubber pads add grip and safety.
- Rust-resistant aluminum body.
- Flexible mounting options are included.
Cons:
- Requires taller tracks.
- It may be too heavy-duty for small windows.
FIRAWER Window Lock combines upgraded safety features with a durable design. It includes friction-enhancing rubber pads and a robust aluminum alloy build for long-term reliability.
Key Features:
- Compatible with tracks over 0.7″ high and under 0.67″ wide.
- Reinforced double-hole design increases locking strength.
- Rubber lining boosts grip and protects window surfaces.
- Easy installation with included hex and vertical keys.
- Great for residential, school, or office window safety.
What Verified Shoppers Are Saying:
Customers find these locks easy to apply, secure, and well-made. The rubber insert adds grip, though some report fit issues with US windows. Mixed feedback exists regarding the hex key security.
Best Window Locks for Aluminum Windows
STERGDE Window Lock
Pros:
- The separation lock design adds safety.
- Installs easily without tools.
- Travel-friendly and versatile.
Cons:
- Fits limited track sizes.
- The gasket may wear with reuse.
STERGDE Window Lock provides a secure solution for controlling airflow and improving home safety. It’s built for long-lasting use and requires no drilling, making installation simple and clean.
Key Features:
- Fits tracks taller than 0.48″ and narrower than 0.61″.
- Lock and key separation design helps prevent unauthorized access.
- Durable, deformation-resistant aluminum construction.
- A protective washer reduces the risk of damage to window tracks.
- Can be repositioned or reused without tools or damage.
What Verified Shoppers Are Saying:
Customers like the ease of setup and solid security. They feel safer and appreciate the airflow option. Some mention misalignment or sliding issues, but others say they work great overall.
Best Window Locks for Sturdiness
PENMAMA Window Lock
Pros:
- Screw-in design ensures a tight hold.
- Rubber padding protects frames.
- Bright key is easy to find.
Cons:
- Slower to install than clamp locks.
- May not suit narrow tracks.
PENMAMA Window Lock uses a screw-in design to secure window tracks. It comes with rubber cushioning for added grip and window protection.
Key Features:
- Compatible with tracks up to 0.4″ wide (with padding) or 0.67″ (without).
- Dual-screw mount enhances stability and prevents unwanted movement.
- Made from high-quality aluminum alloy with a visible key handle.
- Rubber cushions reduce the risk of scratches and boost holding force.
- Ideal for patio doors, glass sliders, or children’s bedrooms.
What Verified Shoppers Are Saying:
Customers appreciate the simple setup, sturdy double screws, and compatibility with various window types. While they protect well and avoid damage, some users say they don’t fit standard sliding glass doors.
Best Window Locks for Functionality
Shop Square Window Lock
Pros:
- No tools needed for setup.
- Vinyl lining prevents damage.
- Great for AC units and childproofing.
Cons:
- Only fits narrow tracks.
- Less secure than keyed locks.
Shop Square Window Lock offers a simple and effective way to secure sliding doors and windows without the need for tools. It’s a great choice for homes, RVs, or air conditioner setups.
Key Features:
- Tool-free installation with thumb screw fits up to 7/32″ wide tracks.
- Vinyl insert protects window frames while enhancing grip.
- Durable aluminum construction suitable for long-term use.
- Allows windows to stay partially open while remaining secure.
- Multipurpose use for childproofing, AC setups, and RV travel.
What Verified Shoppers Are Saying:
Customers say these locks are easy to install, well-built, and offer strong peace of mind. Fit and rubber inserts receive mixed opinions, with some praising their hold while others find issues.
Final Thoughts
In conclusion, selecting the best window locks for your home is an essential step in enhancing security and protecting your property.
With the options we’ve highlighted, you can find a lock that suits your needs, offering both reliability and ease of use.
Whether you’re securing windows in a home, apartment, or office, investing in high-quality window locks provides peace of mind knowing your space is better protected.
