7 Bright Ideas to Childproof Your Windows

Matt Marandola
Written by Matt Marandola
Updated December 21, 2021
Little boy looking out a big window
Photo: VK Studio / Adobe Stock


  • Childproof window stoppers are the easiest method of childproofing.

  • A window replacement costs $650 on average.

  • Opt for smart blinds that operate from a smartphone, so you can monitor your windows even when you’re not home.

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Children are full of curiosity and interesting takes on the world. But sometimes, this curiosity isn’t for the best, requiring a little extra work on your end to keep them safe and secure. This includes childproofing your windows, so the only thing you need to worry about is a few handprints on the glass.

1. Window Locks

One of the easiest ways to increase home window security is to install a childproof window lock. These locks can range from an extra-sturdy window lock that requires more force than usual to options that come with a lock and key, similar to a front door.

Measure your windows to ensure the lock fits neatly into place and that there’s no chance of your child removing it. Some window locks require special installation for the best results, so you may need to hire a handyperson near you to accomplish the job correctly.

2. Window Stoppers

Window stopper installed on a home window
Photo: Elena Yakovleva / Adobe Stock

Window stoppers, sometimes referred to as window wedges, are another great way to increase window safety without completely changing it out. However, window wedges only work for sliding windows. To use them, put them at the point where the window will need to slide open, meaning the top of the window or one of the sides. 

You may also find stoppers in the form of strings or chains that prevent the window from fully opening. Window chain or string stoppers are meant for windows that open inward or outward. They connect to the window frame and the window itself.

Parents might want to opt for window stoppers if they still enjoy opening the window and like a seamless option but still want plenty of protection for their kids.

3. Window Guards

These are handy for when you want to open a window all the way but still want to prevent little ones from adventuring too much. These guards are essentially railings that go in front of the window to prevent children (or even pets) from getting out while the window is open. It also creates enough obstruction so kids can’t reach the window.

4. Window Blinds

Window blinds also prevent child hazards. However, blinds have a ton of tiny rubber and plastic parts that curious babies may find appetizing and put in their mouth. You might want to switch out your corded blinds for cordless options.

If you’re looking to bring your blinds to the 21st century, consider opting for smart blinds. These operate from a smartphone or even voice commands, and you can monitor whether they’re open or closed—even when you’re not home. If smart tech isn’t your cup of tea, look into motorized blinds, which operate by remote controls.

5. Mesh Window Guards

Childproof mesh window guards work similarly to traditional window guards, but they don’t feel like a kiddie jail cell. Instead of bars and rails, mesh guards are a screen that goes over the window frame, but from the inside. They still let in plenty of light, and there's a quick-release function if you feel like opening the windows.

6. Charley Bars

A Charley bar, sometimes referred to as Charlie, is typically meant for sliding glass doors, but it still works for windows as well. They go across from one side of the window to the other, preventing it from being open. If you want to open the window, you’ll need to unlatch the bar and fold it up into place.

Note: You won’t be able to open or close the window by about 5% if you use a Charley bar that attaches to the window itself.

7. Babyproof Windowsills

Even with all the above options mentioned, none of them protect your small ones from the windowsill, which have sharp edges that may end up causing gashes and even—in worst-case scenarios—concussions. Place adhesive cushions around these edges, as these will help lessen the damage during falls. They also may also prevent children from climbing onto the windowsill.

If You Have Old or Nontraditional Windows

Older homes may have nontraditional windows, so these modern inventions may not work. In these cases, your best bet is to hire a local window replacement installation company to come out and replace the window with something more modern. The cost of a window replacement is around $650 on average.

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