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How to Leave Windows Open Safely at Night

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How to Leave Windows Open Safely at Night
April 2, 2015

How to Leave Windows Open Safely at Night

This post was originally published on April 2, 2015. It was updated on February 28, 2020, with current product information.

Is it

safe to leave windows open at night? It can be! Learn how to do it with and

without a security system.

As winter gives way to fresh spring and summer breezes, you may be tempted to leave your window open at night. But this can present a security risk. The good news is, you can follow tips for getting fresh air safely without needing bars over your windows.

We’ll cover four ways (with and without a security system) you can feel safe and keep your home protected when leaving your bedroom windows open while you sleep.

1. Use Door

and Window Sensors—but disable them when you want some fresh air

Frontpoint’s Door and Window Sensor is nearly invisible and can attach to doors, windows, cabinets, and drawers. The sensor alerts you when something is opened and when it is accidentally left open. But you’ve got to turn one (or more) off when you arm the system but want to leave a window open.

How do you disable a window alarm sensor? The first method is to bypass a Door and Window Sensor, which allows you to keep the rest of your sensors armed. This can be done in the Frontpoint app, whether the system is armed or disarmed:

If armed:

  • Within security system options, select Bypass Sensors.
  • Enter your master code.

If disarmed:

  • Arm your system.
  • Within security system options, select Bypass Sensors.
  • All sensors except the one(s) reporting open will be armed.

And you’re good to go! All of your other sensors will be armed, allowing you to open and close your bedroom window throughout the night.

Picture of the Frontpoint Door and Window SensorPicture of the Frontpoint Door and Window Sensor

2. Use two

magnets to arm open and closed windows

Another option is to place two Door and Window Sensor magnets on the same window. Place one magnet where you normally would while the window is closed. Place the second magnet in the location where the sensor would be were you to slide up the window—allowing you to keep the sensor “closed,” or at least showing up as closed on your system.

This method is primarily meant for those with windows that slide up and down, and it may not work with other types of windows. Double-check whether your sensor can reach the secondary magnet when opening the window to ensure that it remains "closed."

When you have a second magnet that arms your window in an open position, the system will be triggered if it is opened wider. A burglar may see an open window as an opportunity to come right in, but they’ll be met with an alarming surprise!


Install motion sensors for first-floor window security

While there are ways to use your security system with open windows, it can be a burden to bypass the sensor of every door and window.

Motion sensors keep areas of your home secure without requiring numerous individual sensors. In a teardrop shape, a single Frontpoint Motion Sensor detects motion up to 40 feet away. This means that you can set up a detector to alert you to a first-floor intruder while you’re sleeping upstairs, for example. Your home is still being monitored, but you don’t have to deal with arming every door and window or only disarming select ones.

Diagram of Frontpoint Motion Sensor detection distanceDiagram of Frontpoint Motion Sensor detection distance
This diagram illustrates the teardrop shape over which Frontpoint Motion Sensors detect motion.

4. Tips

for safely leaving windows open at night without a security system

  1. If your home has multiple stories, try to only leave open the second-floor windows, or windows that aren’t easily accessible.
  2. Remove or beware of anything that can be used to climb to a second-floor window, such as a drainpipe or trellis.
  3. Some windows are fitted with a second lock point, allowing you to open the window slightly and lock it in place. Other windows, such as sliding sash windows, can be fitted with an additional locking sash to allow for a breeze while providing security.
  4. Install an anti-lift device to prevent windows from being lifted out of their frames.
  5. Use motion-detector spotlights in areas near windows to scare off potential burglars.

With all of these security tips, there’s no need to fear leaving your bedroom window open at night. Get that fresh air safely.

Frontpoint keeps homes safe whether families are there or not. We've been revolutionizing the home security industry for over a decade. And we're just getting started. To shop DIY home security systems, check out our Security Packages. If you have questions or would like to discuss a quote, contact us at 1-877-602-5276.

Packages starting at $129* + 25% Off Sitewide

Make Home more secure with Frontpoint
April 9, 2015
When we installed our alarm I setup two magnets on each window just as described. Just make sure you remember your alarm is set if/when you wake up in the middle of the night feel cold and decide to close the window ;)
April 9, 2015
I was told that if I arm my system (without the bypass method shown above), and a window is open, that the rest of the closed sensors would trigger an alarm if opened. Is this true?
Valerie Saponara
April 9, 2015
Chris, this is true! So one of the ways you can bypass a sensor is to leave that sensor open and arm your system. If you do not press the bypass button when the system reminds you that a sensor is open, it will automatically assume you meant to leave it open and bypass it. Even though that one sensor is bypassed, all your other sensors are still going to be armed. If any other sensors (that are not bypassed) are opened while the system is armed, the alarm will sound. Hope this helps answer your question!
Josh Engels
April 13, 2015
I don't understand why this would not be the preferred method then? It seems easier than hitting the bypass button each time and scrolling to the sensor.
April 19, 2015
Agreed, why go through the trouble of having to bypass the system, if it automatically bypasses it if you leave it open?
April 10, 2015
Thank you for this article. I use one magnet with high strength "command strip" velcro. Like the two magnet idea, I placed velcro in the closed position and in the open position. I then just move the magnet to where I need it. Like Mike mentioned, you need to remember to disarm the system before closing a door or window in the middle of the night or else your alarm will go off.
Shannon Dake
April 11, 2015
I do not find a bypass button. Can you tell me where to find it please? Thank you.
Valerie Saponara
April 13, 2015
Shannon, you'll find the "Bypass" button on the front of your main control panel right next to the "Silent" button. Hope this helps and if not let me know!
Ken Brunner
April 11, 2015
Great posting on this blog, I would love to disarm a zone remotely just one zone from my phone or work computer and keep the others activated. But at this point and time, I can only do this from the base unit. Front Point does not have the feature to do it remotely. I wish they did, It would make the alarm system that much better.
April 12, 2015
Can you purchase just the magnets?
Valerie Saponara
April 13, 2015
Karen, we will happily provide you with an extra magnet if you're looking to setup the window trick we've mentioned in this post. There is no need to pay for a small magnet as you're not using an entire sensor. Would you like me to have someone reach out to you and get you set up with a few? If not, please just give our Support Team a call and explain what you're trying to do and they will help you out.
May 22, 2015
Just saw this - I would LOVE to have a few extra magnets for downstairs windows!
Valerie Saponara
May 26, 2015
Karen, we can definitely set you up with some extra DWS magnets! We will send those out to you shortly.
carmon hensley
April 12, 2015
how often do the batteries need to be changed in the sensors
Valerie Saponara
April 13, 2015
All the batteries on our sensors are going to last you anywhere from 3-5 years. And don't worry, when a battery does go a little low as it gets older, your system will notify you. If you ever want to check them to make sure they're good just give us a call!
Yvonne Hansche
April 13, 2015
I like this option and I like the two-magnet option the best. I like continuing to feel the security while enjoying the wonderful warmer weather. FrontPoint is great and I love using your system. Can I get an order for magnets? How many are you willing to send at no charge? I like opening a lot of windows at a time but I can certainly pair it down to a reasonable request. Thanks
Valerie Saponara
April 13, 2015
No problem Yvonne! We'll have someone reach out to you shortly to figure out how many you'll need.
April 13, 2015
We have a lot of windows so they had us get the glass breaking sensor instead of sensors on each window. So we can leave any of ours open without seeing the alarm off, correct?
Valerie Saponara
April 14, 2015
Jen, this is correct! Those glassbreak sensors will only detect paneled glass breaking, and do not detect motion or windows being opened at all. Now if your window gets broken by a passing baseball from a neighborhood baseball game- you can expect your alarm to sound loud and clear.
David Parrish
April 14, 2015
Hello, I really like the idea of having a second magnet so to be able to open our windows and keep the window armed. I'd like to see about getting 4 of these extra magnets. Please let me know how to go about getting those. Thank you!
Valerie Saponara
April 14, 2015
No problem David! I'll have someone reach out to you shortly to get those magnets out to you.
December 19, 2015
Can you use a standard magnet or do you need to use Frontpoint's magnet? Perhaps a standard magnet will work with the sensor?
Valerie Saponara
December 21, 2015
Joe, we suggest you use our magnet as it's guaranteed to work. If you ever want one just let us know and we can send you one free of cost!
April 15, 2015
I leave windows open now and then but I don't use the bypass step. I simply arm my system with the window open and the system will automatically bypass it. When I'm ready to close the window and arm ALL sensors, I simply disarm the system, close the window, and set the system as normal. Hitting the bypass button and scrolling through to bypass a specific window seems a bit much. Whatever works for you works for you. I still love my FP system as it's been a great peace of mind since I purchased it almost 3yrs ago. :)
Valerie Saponara
April 15, 2015
Fran, you've got us blushing over here! Thanks for the kind words and we're glad to see you've found your own way to use your Frontpoint system.
Margaret Neat Oates
April 17, 2015
I have a sliding glass door with sensor on it. When I want it open and my alarm on, I open my sliding door and place a small magnet bar on the sensor, then I activate my alarm. It seems to work.
May 23, 2015
Hello, I'm interested in the extra window magnets for when they are kept open and a few more glass break/motion sensors for added safety. Any deals for current customers?
Valerie Saponara
May 26, 2015
Dawn, We will definitely send you out some extra window magnets. To talk more about getting you some new sensors and to hear about how many window magnets you need, we'll have someone reach out to you shortly!
May 27, 2015
I'm a brand new client, and I love the idea of an extra magnet on my bedroom window so I can enjoy the fresh air at night. Any chance one can get added to my current order? Thanks!
Valerie Saponara
May 27, 2015
Linda, we will try our best to get those extra magnets in on your current order. We will do that right now, and if they don't make your most recent order we will have them sent to you immediately after for free and free of shipping charges as well. Please let us know if you need anything else!
Triton Surveillance
January 3, 2020
I love your idea ! specially on motion sensors ,tips of are essential part of our home for security, thanks for publishing.
Spencer Pearson
February 4, 2020
motion sensors for added safety. Any deals for current customers?
March 6, 2020
Thanks for your interest in Frontpoint! if you are interested in a new system, we are currently offering a great everyday package for $99 which includes our Hub & Keypad, 3 Door/Window Sensors, and 2 Motion Sensors. Please let us know if you have any other questions, as we are happy to help you.
February 20, 2020
This is awesome! Well written article, ready to follow and great inspiration.
Spencer Pearson
March 3, 2020
love the idea of an extra magnet on my bedroom window so I can enjoy the fresh air at night.
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