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The 8 Best window lock for vertical windows of 2025

Are you trying to find window lock for vertical windows among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling window lock for vertical windows on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 18 hours of research and did 56 window lock for vertical windows tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best window lock for vertical windows you can buy today

SaleNo. 1
Window Locks, 10 Pack Window Locks for Vertical and Horizontal Windows, Sliding Window Locks, Adjustable Aluminum Window Stoppers, Window Security, No-Drill Install, Fits Tracks up to 3/16" Wide
  • SLIDING TRACK LOCK: Secure your patio door, sliding glass door, and both horizontal & Vertical sliding windows. Ideal for securing a vertical window air conditioner or window fan setup.
  • DURABLE & SENSIBLE: Made of heavy-duty aluminum the lock includes a vinyl lining to prevent you from scratching your window frame. The vinyl insert provides additional gripping power when locking your windows down.
  • NO TOOLS NEEDED: These window locks are easy to install with double door lock thumb screws securing sliding door & window tracks. They fit sliding doors and windows up to 3/16" wide with the rubber insert or 3/8" without the rubber window seal. Please confirm your sizing to ensure compatibility.
  • CHILD PROOF DOOR LOCK: Use this window lock to protect your family from intruders and more! The sliding door lock allows you to leave sliding windows & doors securely locked in position, whether fully closed or ajar to allow a breeze.
  • WINDOW LOCKS SECURITY: Whether you are looking for a way to lock in an AC unit window setup, as a camper lock replacement, or as part of your babyproofing house setup.
No. 2
Toddleroo by North States Sliding Window & Door Wedge Locks | Limits The Space That Windows and Sliding Doors can Open | No Tools Required | Baby proofing with Confidence (4-Pack, White)
  • WINDOW & DOOR WEDGE LOCKS (4-pack): The perfect solution to prevent your curious little one from sliding windows and doors open.They work in multiple places, including double hung and horizontal sliding windows and doors, by limiting the height the window or door can open.
  • KEEPING TODDLERS SAFE SINCE 1953: Toddleroo by North States not only makes the baby gates and yards that you love, but we now have a full line of babyproofing products to keep baby safe anywhere in your home!
  • SAFETY & CONVENIENCE: Our new childproofing line was thoughtfully designed to maximize safety, ease of use, and functionality. Easy to install, and safety you and your family can count on.
  • SIMPLE YET EFFECTIVE:The Window & Door Wedge Locks feature an easy hook and loop installation, with no tools, no screws, no nails, no damage to your windows or sliding doors. The soft white color stylishly blends in with any home decor.
  • MAKE YOUR HOME SAFE: Babies like to explore all those nooks and crannies’ around the house. With this 4-pack of sliding window and door wedge locks you can help to keep your little one out of harm’s way.
SaleNo. 3
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)
  • MEASURE YOUR WINDOW TRACK BEFORE BUYING: Our window locks are designed to fit a wide range of vertical and horizontal sliding door windows, please measure your window track for compatibility with the locks before buying, With a track size height requirement of greater than 0.48 inch (1.2 cm) and width limitation of less than 0.61 inch (1.55 cm). Depending on the type of track, window locks can be installed on either the inside track or the center track.
  • ENHANCED SECURITY DESIGN: 1, window lock and key separation design, to prevent children or thieves to unlock at will; 2, thickened aluminum alloy material, permanent durability and not deformed; 3, window lock two fixed hole design, so that you can experience a stronger security protection; 4, the lock body widening design, open the window when the blocking area is more solid; 5, the window lock is equipped with a protective washer, to prevent scratches or damage to the window.
  • VERSATILE USABILITY: Our sliding window security locks are widely used in a variety of situations, including homes, apartments, hotels, offices and more. The window lock can freely control the sliding window to partially open or completely close, preventing children or pets from accidents, preventing burglars and thieves from trespassing, the security window locks can provide you with more safety protection.
  • EASY TO INSTALL WITHOUT DRILLING: No additional tools or drilling required for installation. Place the lock in place, insert the protective spacer and tighten the screw to secure. You can use the vertical key or hexagonal key to reinstall the lock in different positions, the window lock is easy and convenient to reuse.
  • PACKAGE INCLUDES: 6 security window locks, 6 mounting hex keys, 6 protective gaskets, 1 vertical key for mounting to center track. If you have any issue about the window locks, please contact us. We will reply within 24 hours.
SaleNo. 4
Prime-Line U 9819 Aluminum, Sliding Window Security Lock (4 Pack)
9,584 Consomer Reviews
Prime-Line U 9819 Aluminum, Sliding Window Security Lock (4 Pack)
  • WINDOW LOCK – Use this lock to secure metal horizontal sliding windows in a closed or ventilating position
  • SECURE – The thumb turn screw of this sliding window lock secures the lock in place
  • INSTALLATION – Easily install this secondary lock with no tools required
  • DIMENSIONS – The secure lock has a natural finish and can fit up to a 1/8 inch wide rail
  • NOTE – Please refer to the line art drawing for dimensions and compare with your needs before purchasing
SaleNo. 5
Window Locks,4 Sets 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)
  • 【MEASURE YOUR WINDOWS TRACK】: The window lock is apply for sliding windows, sliding doors and vertical windows.please measure your window track size height must be greater than 0.55inch (1.4cm) and width must be less than 0.59inch (1.5cm) before ordering window locks. window locks is equipped with a vertical key, which can be applied to the middle track of the window.
  • 【UPGRADE PROTECTION DESIGN】: 2024 Upgrade protection design,our each window lock has two fixing holes,secure it on the window track,which greatly enhance the holding power of the lock,use double hole locks on heavy windows/doors for added security. window locks are also equipped with protection pads to prevent scratches or damage to your window and improve stability.
  • 【WIDE USAGE】: It ensures your family members safety,can control the window partially open or closed,effectively reduce the risk of children and pets falling from high windows,by locking your windows, it can also protect your property against damage during heavy rains and hurricanes.also, it prevent burglars and thieves.This sliding window lock for home,bedroom, kindergarten, office,etc.
  • 【EASY TO INSTALL】: No additional installation tools or drilling required,3-step quick installation.step1,place the lock to a suitable position.Step2,Insert gasket protect window track from scratches.Step3,tighten the screws,done!you can easily fix the window lock at any part with the vertical key or hex keys,easy to reuse and re-install.
  • 【PACKAGE INCLUDES】: 4 Sets of window locks for sliding windows,including 4 PCS sliding window locks,4 PCS hex keys,4 PCS gaskets,1 PCS vertical key.Great thanks for choosing us and we care about the customer's purchase satisfaction.If you have any questions while using,just feel free to contact us,we will reply to you within 24 hours and surely offer you a satisfied solution.
SaleNo. 6
Window Locks, 4 Sets Sliding Security Window Lock with Key for Vertical & Horizontal Sliding Windows & Sliding Doors, Adjustable Window Locks Security Window Stoppers for Patio Bedroom Home and Office
  • 【Compatibility】 Window locks are applicable for sliding windows, sliding doors and vertical doors. Locks are 2.4 inches long and fit tracks up to 0.4 inches wide inches with rubber cushioning or up to 0.67 inches without rubber cushioning. Please measure your track to ensure proper fitment.
  • 【Screw In Design】 Sliding window locks utilizes double screws to mount on sliding window/door tracks, prevent sliding and add more security. Simply screw them with hex keys (included) for fully secure windows/doors or to allow for ventilation, no extra tools needed. Comes with rubber cushioning to prevent scratches or damage to the window and improve window security.
  • 【Quality Aluminum Alloy】 Sliding door and sliding window stoppers: The strong aluminium will remain secure which is sturdy and strong, and the cute yellow key handle is showy and easy to be found.
  • 【Widely Use】Slider window locks are perfect for sliding patio doors, sliding glass doors, etc. Feel free to open the windows a few inches to get both fresh air and peace of mind, because they no longer open enough for someone to slip into your house without breaking the window and alerting your dogs. Put some window lock latch to your kid's room to keep your toddler from falling out the windows.
  • 【Package Includes】 Pack of 4 sliding window locks with rubber cushioning and keys; Apply multiple window locks can increase sliding door/window security.
SaleNo. 7
Window Locks, 4 Sets Premium Sliding Window Locks Security Up and Down Window, Vinyl Double window locks for Childproof Home Safety, Adjustable Vertical Horizontal Sliding Door Windows Lock Stopper
  • 🔓【Double Lock Design & Easy Installation】: 2024 Newest upgrade protection design, each window lock with two fixing holes that greatly enhance the holding power of the lock. Please refer to the fourth installation diagram before installing.
  • 🔓【Special Rubber Protection Pads】: To prevent lock scratching or damage to the window, FIRAWER window lock clamps specially adds a rubber pad layer that enhances the friction between the window track and lock, to improved stability and security. At the same time, we are also equipped with hex key, you can easily install the window lock to the inner rail of the window, which can solve the risk of children or thieves opening the window.
  • 🔓【Measure Your Window Track Size】: To ensure a perfect fit for your window, please make sure your window track height is greater than 0.7in (1.9cm) and width is less than 0.67in (1.7cm). Our window restrictor works with horizontal windows, horizontal doors, and vertical windows.
  • 🔓【High-quality Safety Window Lock】: The FIRAWER window stopper is made of hard aluminum alloy that is rust-resistant, waterproof, and anti-aging. It can effectively prevent the risk of children and pets falling from heights, protect your property during storms, and prevent theft or property damage during your outings. Our childproof window locks for your home, office, children's room, kindergarten, or elementary school.
  • 🔓【Package Includes】: You will receive 4 sliding window locks, 4 hex keys, 4 rubber protection pads. Our window locks provide increased security for sliding doors/windows. If you have any questions or concerns, please contact us. We will reply within 24 hours.
No. 8
ZhouDaShu Adjustable Window Security Bars (Steel), Window Locks Bars Inside for Prevent Burglary, Window Stoppers for Vertical/Sliding Windows, Window Safety Bars Extends from 16.3-29.3 Inch(2 pcs)
  • 【Window Locks Security】:The window security bars can be easily adjusted to the ideal width. Security bars for windows can withstand repeated impacts on forced entry, effectively stopping burglars from entering home through sliding windows or patio doors. The sliding window locks can also prevent children from falling from the open windows, ensuring the safety of children/family.
  • 【Length Adjustable】:The window locks security bar offers 12 adjustable lengths for you to control the window, just push the pin to lock the height in place, the length of the window safety bars can be extended from 16.3" to 29.3", fits most standard window tracks.
  • 【Hight Quality】:The security bars for inside windows are made of high-quality steel, which is stronger and more durable than other similar products, strong and smooth, and has the characteristics of anti-rust, anti-oxidation, non-deformation, and non-fading.
  • 【Easy to Install】:The burglar bars for inside windows is suitable for vertical windows, sliding windows and patio doors, you can put it directly on the window or door track of sliding windows and patio doors without any tools, if it is a vertical window, you need to fix it with tape on the vertical window track, easy to install.
  • 【Kind tips】:Please measured your window or door track before purchasing! The window stoppers for sliding windows is 1 inch wide so that make sure your window or door track must be at least 1 inch wide.
No. 9
ZhouDaShu Adjustable Window Lock Bar,Window Security Bars for Child Safety,Window Stoppers for Vertical Sliding Windows,Sliding Door,Apartment/Basement Window,Extends from 9.8-16.7 in(Steel 1 pcs)
  • 【Measure before purchase】: Please measure the window or door rail where the window security bars will be placed before you purchase. The window rail must be at least 1 inch wide and 16.5 inches long to accommodate.
  • 【Keep your family and children safe】:The window security lock can control the window to partially open or close, effectively reducing the risk of children and pets falling from high windows. The window safety bars also allows you to keep the window open a small part when you sleep with the air conditioner on, enjoying the air circulation while ensuring safety and keeping intruders out.
  • 【Adjustable Design】:The sliding window security bar can extend from 9.8" to 16.7" with 7 adjustable lengths to choose from. The window ac locks can withstand repeated impacts of forced entry, effectively preventing the window or door from being opened unsafely.
  • 【Easy to use】:You just need to put the window blocker security directly across the window rail or door rail after adjusting the length of the window jammer security bar to fix the window or door, tool-free installation and removal. For vertical windows, you will need to prepare your own Velcro or screws in order to secure the window safety locks to the window frame.
  • 【Safety is priceless】:The apartment window security is made of high quality metal, more durable than other plastic or PVC products to withstand the impact, more thick and durable, not deformed and rusty, indispensable window security guards for families.
  • Note: Please confirm your window size before buying our adjustable window security bar to avoid unusable situation. This window bars security inside is suitable for small windows, if your window is bigger, you are welcome to enter ZhouDaShu store to buy another longer window lock bar.
No. 10
1 X Lot of 4 Pcs Sliding Window Lock (12 Pack)
  • Used to secure sliding window in a closed or ventilating position
  • Thumb turn screw secures lock in place
  • Extruded aluminum construction
  • Fits up to 1/8 in. thick rails
  • Include 12 pack window lock.

How to choose a good window lock for vertical windows

Does the idea of finding a fantastic window lock for vertical windows make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in window lock for vertical windows. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top window lock for vertical windows products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top window lock for vertical windows on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top window lock for vertical windows brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top window lock for vertical windows based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the window lock for vertical windows were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good window lock for vertical windows, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your window lock for vertical windows.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting window lock for vertical windows for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our window lock for vertical windows. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what window lock for vertical windows should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on window lock for vertical windows.