Best Windows Lock for Home Security:Reviews, Buying Guide, and FAQs 2021

by Robert Fox

In this current age, it is important to get the best protection for your home by getting products and devices that will secure every part of the house. They include door locks, window locks, security cameras, and many more. These are special types of security devices designed to protect homes from intruders. From research, there is a high tendency that intruders like burglars may tend to try to force their way into people's homes through doors and windows.

Hence, improving doors and windows security should never be neglected. There are several locks designed to add extra security to doors and windows which provides needed protection to keep our homes safe. Most homes have doors properly secured while paying little attention to windows. So, intruders target breaking in through windows because they are not as secure.

Window locks are designed to protect lives and properties. So, while they help homeowners in keeping intruders and thieves away from breaking into the house, they also help in keeping little children and pets indoors to prevent them from falling accidents. In this guide, we will review some of the best window locks for home security. We will also write a buying guide section that will guide readers in choosing the right window locks for home security.

Top 6 Best Windows Lock for Home Security (Product Reviews)

Here are six of the best windows locks for home security reviewed in 2021;

Top 6 Best Windows Lock for Home Security (Product Reviews)
Top 6 Best Windows Lock for Home Security (Product Reviews)

1. Maxdot Adjustable Sliding Windows Lock - Link

Maxdot Adjustable Sliding Window Locks Aluminum Alloy Window Door Frame Security Locks with Key for Home and Office (Double-Locks, 4 Sets)
Maxdot Adjustable Sliding Window Locks Aluminum Alloy Window Door Frame Security Locks with Key for Home and Office (Double-Locks, 4 Sets)

The "Maxdot Adjustable Sliding Window Locks" is an adjustable sliding window lock made of quality aluminum alloy. It features double open design lock protection and 4 sets of keys, making it a suitable security device for most window frames in homes and offices.

The enhanced double-locking system provides a stronger friction force making them the perfect sliding window locks that will prevent children from falling and keep intruders locked outside. They are also one of the best window locks for home security in hot summer because they are designed to allow you open screen windows which will, in turn, improve air circulation.

These adjustable sliding window locks are suitable for you if you have your windows at ground or garden level. You can be sure that all movement through the window will be blocked.

Basic Features

  • 4 Sets of Keys
  • 4 Sliding Window Locks
  • Manufacturer: Maxdot
  • Material: Aluminum Alloy
  • Double Open Design Locks
  • Package Dimension: 5.83 x 4.33 x 1.38 inches

The Pros (Benefits)

  • They are easy to install adjustable sliding window locks
  • The yellow plastic handle on the hex keys makes them easy to tighten
  • It adopts enhanced double open design locks to provide safer security
  • They are tough to break because of the strong aluminum alloy material
  • You can apply multiple locks together on huge windows to increase safety
  • It has plastic sheets that prevent the track from worn-out when tightening screws

The Cons (Limitations)

  • It has a weird design for intended use and application on sliding doors and windows

2. Reliancer 4 Packs Sliding Window Locks - Link

Reliancer 4 Pack Sliding Window Locks Sets with Keys Aluminum Alloy Door Frame Security Lock Stop Adjustable Safety Window Locks Security Door Stop for Home and Office Child Safety
Reliancer 4 Pack Sliding Window Locks Sets with Keys Aluminum Alloy Door Frame Security Lock Stop Adjustable Safety Window Locks Security Door Stop for Home and Office Child Safety

The "Reliancer 4 Packs Sliding Window Locks" is made of sturdy Stainless-Steel construction and Non-slip Silicone Pads to provide safety window locks for homes and offices. This is a 4 pieces window lock designed with a strong screw rod and a body that is plated with stainless steel to prevent rust, which in turn increases the service life of the sliding window locks.

Reliancer Sliding Window Locks are difficult to move easily because they are designed with non-slip silicone pads that increase friction along with the window frame. They come with average-sized lock keys and the adjustable design makes them suitable for horizontal windows, vertical windows, and sliding glass doors. These slider locks are a must-have for homes and offices.

You can apply these sliding window locks to windows with track height not higher than 0.48 inches and track thickness not higher than 0.63 inches. You don't need tools or drilling to install these window locks. All you need do is adjust the width of the lock plate, and place it on the upper or lower track of any sliding window. Then turn the key to secure the lock.

Basic Features

  • Arch-Shaped Corner
  • Finish Type: Brushed
  • 2 Non-Slip Silicone Pads
  • 4 Sliding Window Locks
  • Brushed Stainless Steel Body
  • Adjustable Width Lock Plate

The Pros (Benefits)

  • These window locks can be easily installed without tools
  • The non-slip silicone pads prevent locks from scratching the window
  • The length of these window locks can be adjusted to fit most windows
  • The brushed stainless-steel body prevents rust to increase service life
  • This window lock offers protection against unwanted burglars and thieves
  • They are designed for parents who want to keep their curious kids from falling off
  • This window stopper helps to increase air circulation while keeping the windows locked

The Cons (Limitations)

  • The wings that anchor the window locks might bow when fully tightened

3. Onvian 6 Packs Aluminum Sliding Window Locks - Link

Onvian Window Locks, 6 Pack Aluminum Sliding Window Locks Security, Adjustable Sliding Door Frame Security Lock with Keys
Onvian Window Locks, 6 Pack Aluminum Sliding Window Locks Security, Adjustable Sliding Door Frame Security Lock with Keys

The "Onvian 6 Packs Aluminum Sliding Window Locks" is a top-quality sliding window stopper lock designed for use in home and office. These sliding window locks are made of aluminum alloy material, making them rust-proof and highly durable. They are coated with plastic protective gaskets to prevent any form of scratches that can damage the window.

This is the perfect window security lock to prevent pets and children from falling off when they climb the window. You can use the locks to protect intruders like buglers from entering your house through the windows. They are designed for wide application because they are suitable for use on sliding windows, vertical & horizontal sliding windows, including sliding glass doors.

These adjustable sliding window locks come with keys and can be installed by following easy steps. The fast installation requires no tools or drilling. Ensure you check your window track height and thickness to match the capacity of these sliding window locks. Furthermore, make sure you use double locks for heavy windows to provide added security.

Basic Features

  • Plastic Protective Gaskets
  • Material: Aluminum Alloy
  • Item Weight: 10.8 Ounces
  • 4 Single Hole Window Locks
  • 2 Double Hole Window Locks
  • Package Dimensions: 4.29 x 3.9 x 1.54 inches

The Pros (Benefits)

  • They come with both single and double locks
  • They are made of sturdy aluminum material that prevents rust
  • They can be used with most sliding windows and sliding doors
  • The plastic protective gaskets prevent damages to the windows
  • They are made of sturdy and strong material which makes them durable
  • They are great for keeping windows partially open to allow air circulation
  • They are easy to install and requires the use of no tools during installation

The Cons (Limitations)

  • They are not suitable for middle window tracks and plastic window frames

4. Lion Locks Sliding Window & Door Locks - Link

Lion Locks Sliding Window and Door Locks (10 Pack), Adjustable Aluminum Security Screw Lock for 3/16-3/8
Lion Locks Sliding Window and Door Locks (10 Pack), Adjustable Aluminum Security Screw Lock for 3/16-3/8

The "Lion Locks Sliding Window Locks" are made of zinc die-cast extruded aluminum and they feature dual thumb screws that help to securely lock both vertical windows and horizontal windows. When it comes to size, Lion Locks features 10 packs of locks and they are designed to grip firmly to sliding window tracks and door tracks. They are ideal for securing patio doors.

This adjustable aluminum-made sliding window lock features a security screw lock for a series of window tracks (3/16 inches tracks - 3/18 inches tracks). They come with protective rubber (inner vinyl lining) that prevents scratches along window tracks. They are great for securing Air Conditioner units and for creating small window openings that will allow air ventilation.

You will enjoy highly secured protection if you use Lion Locks to lock the right & left tracks of vertical sliding windows or top & bottom tracks of horizontal sliding windows. Unlike other door and window locks, the locking mechanism will not damage your windows and doors. These are great window locks choices for people looking for added security in their homes and offices.

Basic Features

  • Screw Lock
  • Inner Vinyl Lining
  • No-Drill Installation
  • High-Quality Aluminum
  • Item Weight: 10.6 Ounces
  • Package Dimensions: 7.01 x 5.31 x 1.85 inches

The Pros (Benefits)

  • These window locks are easy to install without using tools
  • Lion Locks is designed to protect your family from intruders
  • They are good for protecting pets and children from falling accidents
  • It works perfectly with sliding doors, vertical windows, and horizontal windows
  • They are used to effectively lock windows in the exact position you want them
  • They are made of high-quality aluminum that gives them strength and durability
  • They come with protective rubber that guides the window tracks from getting damaged

The Cons (Limitations)

  • They are not suitable for use on windows with thin edges

5. Defender Security Vinyl Windows Locks - Link

Defender Security U 9809 Sliding Window Lock for Vinyl Windows - Easy Installation to Keep Windows Securely Closed - White Diecast Construction (Pack of 2)
Defender Security U 9809 Sliding Window Lock for Vinyl Windows - Easy Installation to Keep Windows Securely Closed - White Diecast Construction (Pack of 2)

The "Defender Security Sliding Windows Locks" is the window locks specially designed for vinyl-style windows. This unique sliding windows locks is made of diecast construction that is coated in white color. They will perfectly fit on most windows with a vinyl frame design. These are reliable window locks for securely closing your windows to prevent intruders from getting in.

Defender Security Sliding Windows Locks also feature adjustable jaw construction that fits well on most vinyl windows. The adjustable jaw features a "vice-like" grip that opens up to 0.5 inches. It allows you to lock windows in a position that allows air circulation. You can use Defender Security lock to protect your pets and little ones from falling off the windows.

In addition, they are the ideal security locks that will prevent intruders from gaining access to your home. During installation, you should rotate the locking-lever and tight it with your hands over the rail/vinyl-edge to lock down the level effectively. This installation process requires no tool or drilling holes in the window frames. It is a highly durable vinyl window locker.

Basic Features

  • Adjustable Jaw
  • Aluminum Material
  • 4.2 Ounces Weight
  • Vinyl Window Locks
  • Cam Style Locking Lever
  • White Diecast Construction

The Pros (Benefits)

  • The installation is simple and requires no tools
  • This is a cost-effective windows lock for home security
  • They are made of strong aluminum material construction
  • The white diecast painting makes it difficult for intruders to see it
  • The jaw grip holds securely and does not damage window frames
  • They add extra security to windows to prevent falling accidents and intruders
  • They will not alter the structural design of vertical and horizontal windows

The Cons (Limitations)

  • They are designed for vinyl windows use only and not suitable for patio door

6. JEACENT Security Window Lock Bar - Link

JEACENT A/C Security Window Lock Bar, Window Security Bars - Sturdy Steel, Extends from 10
JEACENT A/C Security Window Lock Bar, Window Security Bars - Sturdy Steel, Extends from 10

The "JEACENT Security Window Lock Bar" is a unique type of window security lock. These are different kinds of window locks in terms of construction made of sturdy steel that extends from 10 inches to 17.5 inches. It is specially designed for sliding windows with an Air Conditioner unit installed. This is an ideal security window lock bar for keeping children in and intruders out.

JEACENT Security Window Lock Bar can be adjusted to keep windows locked at given width or height. You can also adjust them to keep windows partially open for proper ventilation. A.C Unit can be installed without worries of it falling off if you secure them with this windows lock.

Make sure you check your window track size before buying this window lock. It should be at least 1.0 inches wide. This is very important if you want it to fit the security purpose you want. You don't need any kind of tools to install this lock on your windows at home or even in your office. Lastly, this security lock bar is quick and easy to install if you follow the required steps. The unique design makes it a highly sort after window lock for home security.

Basic Features

  • White Finish
  • 10.2 Ounces Weight
  • Adhesive Velcro Strips
  • Adjustable Bar Length
  • Rubber End Protection
  • Strong Steel Construction

The Pros (Benefits)

  • You will enjoy a quick and simple installation
  • The adhesive Velcro strips hold the device tightly in place
  • It works well with window tracks with an air conditioner installed
  • The length of this window lock bar can be adjusted from 10" to 17.5"
  • The lock prevents the window from opening when installing A.C Unit
  • It provides a safe and secured way of keeping pets and children indoors
  • The strong steel construction makes it tough to break and highly durable

The Cons (Limitations)

  • It is not suitable for double-hung windows for the burglar-proof purpose
  • This locking device cannot work with window tracks narrower than 1.0 inches wide

Buying Guide for Best Windows Lock for Home Security

You need to consider some factors when choosing window locks for home security. Due to the importance of security and safety, you should not allow price to deter you from buying quality windows lock. The better the quality of window locks, the better the protection they provide.

Here are important features to consider before choosing window locks for home security;

Check Lock Material

Most window locks are made of strong aluminum alloy or sturdy steel materials because they offer strength and durability no matter how long you use them. So, when choosing one, make sure they are made of high-quality aluminum or steel. If the material used is not strong, buglers can easily break them, which will, in turn, give them access to valuable items in your home.

Check Lock Style

The lock style of window locks should be put into consideration when choosing one for securing windows in your home. The style you choose depends on what you need them for. The "sliding locks" prevent windows from sliding open and help with ventilation. The "bar locks" prevent windows from sliding open and offer difficult to break lock. While the "sash lock" is like sliding windows locks without the keys. So, you can open and close the locks without keys.

Check Lock Strength

You should look out for window locks with tough construction. The stronger the lock the more difficult it is to break down, which in turn will offer better protection against all intruders and burglars. If you use a weak lock, burglars will find it easy to break-in. Window locks with tough strength are also highly durable, making them good for use over a long period.

Check Window Compatibility

You should always check the type of your windows before buying locks for them. There are vertical windows and horizontal windows, so make sure you buy locks designed for the type of window in your home. Some locks can work for both vertical and horizontal sliding windows while some are designed for vertical/horizontal windows only. You should also check window dimensions to know if the size of window locks you are buying is compatible with the window.

Check Installation Simplicity

Window locks that are easy and quick to install should be your major go-to. You don't have to get tools to install them, making the installation quick and stress-free. So, before buying any window locks, make sure you check if they can be easily installed without the use of tools. You should also check if you don't have to drill holes in your window because that is complex.

Check Lock Aesthetics

The appearance of window locks might not be important to some people, but there's nothing wrong with looking out for window locks with cool aesthetics. You don't want to install a locking device that doesn't look pleasing to the eyes on your windows, so you can consider this factor before buying one. Just like every other product, you want your window locks to look attractive while still offering needed functionality. Attractive window locks are great for vibes.

Windows Lock Frequently Asked Questions (FAQs)

Here are frequently asked questions that should be of help;

Window locks are made of which materials?

Window locks are made of different types of materials but the most common ones are made of strong aluminum alloy and thickened stainless steel. These materials are used for window locks because they are tough and difficult to break. They can withstand external impact without losing their locking mechanism. These materials are also anti-rust and highly durable.

Can window locks damage my windows?

Window locks can damage your windows if you don't use protective rubber lining to wedge their contact with window tracks. The protective rubber lining prevents the locks from scratching the window tracks. If not properly used, fully tightened window locks can damage your window. So, make sure you use the plastic/rubber protection that comes with the locks.

What are the major benefits of using sliding window locks?

Sliding window locks are great for locking windows in a position and leaving open space for air circulation that will encourage interior ventilation. They are also good for locking windows to keep pets and children who are hyperactive indoors. So, when pets and children go to the window to play, it will prevent them from falling off. Overall, window locks act as an anti-theft device because they prevent burglars and thieves from breaking into the house.

Do I need to put size dimensions into consideration before buying window locks?

It is necessary to check the size dimensions of window locks to be sure they will fit perfectly on your windows. Some window locks have dimensions that work for most vertical and horizontal windows, but some window frame styles might not accept some window locks. So, always remember to check both window tracks dimensions and locks size dimensions to know if they are compatible. For heavy windows, you can double up window locks for added security.

Conclusion for Windows Lock Buyers

Window locks offer the perfect solutions for adding extra security to homes and offices. There are many quality options to choose from out there, but we have carefully reviewed some of the best that will provide you with the needed home security. The good thing is that most of these window locks will not burn a hole in your pocket because they are cost-effective. Check out the product reviews and visit the links to get further information on how you can purchase them.

Kindly tell us about your favorite window locks in the comment section.

About Robert Fox

Rob Fox is a former hydro worker, who used to teach self defence in Miami for 10 years. His hobbies include cribbage, golf, locksmithing, and cooking.

Thoughts on "Best Windows Lock for Home Security:Reviews, Buying Guide, and FAQs 2021"