An easy way for burglars to enter a home is through a window. According to data from the US Department of Justice, approximately 23% of US burglaries involve forced entry through a window. So it is very important to secure your windows to prevent possible break-ins. In this article, we’ll explore how to protect windows from break-ins by providing practical, cost-effective solutions. Whether you live in an apartment, house, or multi-story building, these strategies will help you prevent potential intrusions and create a safe living space.
Table of Contents
Why Windows is a target for thieves?
Windows are often a prime target for thieves because they’re typically easier to break than doors. Many homeowners overlook window security, leaving them as vulnerable points in their home’s defenses. Here are the key reasons why windows are attractive to thieves:
Easy Access: Windows generally offer less resistance than doors, making them easier to break into.
Quiet Entry: Breaking a window, especially a small one, can be quieter than forcing a door open, allowing intruders to slip in unnoticed.
Secluded Spots: Windows that are hidden behind fences, shrubs, or house layouts give burglars the cover they need to operate without being seen.
Recognizing these vulnerabilities is the first step to better securing your home. The good news is, there are plenty of practical ways to strengthen your windows and reduce the risk of break-ins.

How to Secure Windows from Break-Ins?
1. How to Secure Windows from Break-Ins: Start with Better Window Locks
We’ve already mentioned that about 23% of burglars enter homes through windows. Regrettably, burglars can easily bypass many standard window locks. That’s why upgrading your window locks is one of the simplest yet most effective ways to improve your home’s security. Here are three types of window locks that can make a significant difference in protecting your home:
- Pin Locks: If you have double-hung windows, pin locks are a great solution. They work by inserting a solid metal pin that prevents the window from being lifted from the outside. Even if a thief can tamper with the latch, they will not be able to open the window with the pin locked. Even this makes it almost impossible to force entry.
- Keyed Lock: As the name suggests, these locks require a key to open the window. Adding a keyed lock to your windows adds an extra layer of security. This ensures that only those who have the key can unlock and open the window. This is especially useful for windows that are often targeted by burglars, such as those on the ground floor.
- Sliding Window Locks: These locks are essential if your home has horizontal sliding windows. They cling to the window track so that no one can open it from the outside. It’s a simple yet highly effective solution that brings peace of mind to homeowners with these types of windows.

2. Prevent Break-Ins with Window Security Bars or Grilles
Window security bars and grilles are highly effective solutions to prevent break-ins. These metal barriers, which can be installed inside or outside of windows, make it nearly impossible for intruders to enter your home. While some homeowners worry about aesthetics, modern designs are sleek, discreet, and blend well with your home’s appearance.
- Permanent bars: These offer constant protection but can limit escape during emergencies, such as fires.
- Removable Bars: These are designed for flexibility, providing strong security but can be easily removed in case of emergencies.
Ensure that security bars or grilles are installed properly and comply with local fire safety regulations. For more tips on window security, check out our guide on Best Ways to Secure Your Windows against Intruders.

3. Reinforce window glass to secure windows.
One of the most overlooked aspects of home security is the strength of window glass. Standard glass can break easily, making windows a vulnerable entry point for burglars. By reinforcing your windows, you can greatly reduce the chances of a break-in. Here are three effective ways to protect your window glass:
1. Window security film
A cost-effective option, window security film adds an extra layer of protection to your glass. This clear adhesive film strengthens the glass, making it more resistant to impact. Even if the window is broken, the film keeps the shattered pieces in place, preventing easy access for burglars.
2. Laminated glass
Laminated glass is an excellent choice for home security. Made of two panes of glass with a durable plastic layer, it is much harder to break than regular glass. Even if the glass is cracked, the plastic layer holds the structure together, providing another barrier to entry.
3. Tempered glass
Tempered glass is a strong and shatter-resistant option. It is four times stronger than standard glass and breaks into smaller, less damaging pieces when broken. While this may not completely stop an intruder, it does make forced entry more difficult.

4. Enhance Security with Window Sensors
Window sensors provide an additional layer of home security. These sensors are designed to detect when a window is opened or the glass is broken. This triggers an alarm that can alert you and deter potential intruders. Below are two types of window sensors that can increase your home security:
- Contact sensor: A contact sensor detects when a window is opened. By installing them on the window frame, the sensor will activate when the magnetic connection between the window and the frame is interrupted, immediately setting off an alarm. This ensures that anyone trying to open a window without permission is caught by the law.
- Glass brake sensor: Glass break sensors are designed to detect the sound or vibration of glass breaking. This is especially useful for windows that can be collapsed rather than opened. These sensors add an extra layer of security as they respond to any attempt to break the window.
Both types of sensors can be integrated into a larger home security system, providing peace of mind whether you’re at home or away. By fortifying your windows with these sensors, you will greatly improve your ability to secure windows against unauthorized access.

5. Plant Thorny Bushes to Secure Windows from Break-ins
One natural yet effective way to enhance your home security is by planting thorny bushes beneath your windows. While not a primary security solution, these plants add an extra layer of defense against potential intruders. Thorny varieties like roses, barberry, and holly can create a physical barrier, making it difficult for burglars to access your windows without causing noise or injury. By incorporating this simple, natural deterrent, you can further secure your windows and protect your home from break-ins.

6. Secure Windows with Motion-Sensor Lighting
One of the simplest ways to secure windows from break-ins is by installing motion-sensor lighting. Burglars are less likely to target well-lit areas, and strategically placing lights around your windows, especially in less visible areas like the sides or back of your home, can deter potential intruders. These lights automatically activate when motion is detected, shining a spotlight on suspicious activity. By ensuring your home’s exterior is illuminated, you add a powerful deterrent, enhancing window security and reducing the likelihood of unauthorized entry.

Frequently Asked Questions: How to Secure Windows from Break-Ins
Q): How can I secure my windows from burglars without expensive equipment?
(A): You can take several affordable DIY steps to secure your windows, such as installing window locks, applying security film to reinforce glass, or adding inexpensive contact sensors. These measures are simple, cost-effective, and can significantly boost your home security.
2. (Q): What are some effective DIY window locks that I can install myself?
(A): Pin lock and keyed lock are two viable options. Pin locks are easy to install and prevent windows from being lifted from the outside. Keyed locks, on the other hand, require a key to open. Both are great DIY solutions that you can implement without professional help.
3. (Q): Can I reinforce my windows without replacing them?
(A): Yes, reinforcing existing windows is easy. You can apply window security film to strengthen the glass, making it harder to break. Alternatively, you can install laminated or tempered glass, which is stronger and more shatter-resistant. These upgrades enhance window security without a full replacement.
4. (Q): What is the easiest DIY solution for securing basement windows?
(A): Window security bars or grilles provide excellent protection. For less invasive options, apply window protection film to reinforce the glass or use a keyed lock for added security. If your basement windows are recessed, consider adding window well covers to prevent access.
5. (Q): Is there a DIY way to secure my windows while I’m on vacation?
(A): Yes, while on vacation, you can secure your windows by installing removable security bars or grills. These are easy to install and remove. Additionally, smart window sensors connected to your phone can alert you to any suspicious activity while you’re away.
6. (Q): Do Windows alarms work, and can I install them myself?
(A): Yes, you can install window alarms. These alarms produce a loud sound when a window is opened or tampered with. They are available in both wired and wireless versions, and most come with easy adhesive backing for quick DIY installation.
In short, knowing how to secure windows from break-ins is essential to keeping your home and loved ones safe. From upgrading window locks and installing security bars to strengthening the glass and using sensors, there are many cost-effective DIY techniques you can adopt. This is an ongoing commitment. Regularly assess your home’s defenses and stay abreast of new security solutions. Remember, the peace of mind that comes with knowing your home is secure is priceless. So, why wait? Start taking these proactive steps today and create a safer living environment for you and your loved ones.