Window Locking: Review & Recommendations

Welcome to our big window security test 2020, where we present you all the window security products we have tested in detail. We have put together detailed background information for you and also added a summary of the customer reviews on the net.

We want to make your purchase decision easier and help you to find the best window protection for you.

You can also find answers to frequently asked questions in our guide. If available, we also offer you interesting test videos. On this page you will also find some important information that you should pay attention to if you want to buy a window lock.

The most important facts in brief

  • Window security systems are the most basic and important part of security technology in your own four walls. They deter burglars and give you a feeling of security.
  • Basically, you can choose between mechanical or electronic window locking. Mechanical security devices are also very suitable for securing your balcony door.
  • Weight, dimensions and workmanship are essential quality criteria that should be checked before buying a window locking device.

Window backup: Favourites of the editorial staff

  • The best mechanical window protection
  • The best window security with security bolts
  • The best window security for windows and doors

The best mechanical window protection

The best window security with security bolts

The best window security for windows and doors

Advisor: Questions you should consider before you buy a window lock

Where can I buy a window lock?

You can buy window locks in both specialist shops and department stores. On the Internet, however, you will find a larger selection and the prices are directly comparable and you may even be able to save a few euros.
According to our research, most motion detectors in Austria are currently sold on the Internet through the following shops:

What brands of motion detectors are available?

You have a wide spectrum when it comes to choosing a motion sensor. Popular brands are:

Keeper of the castle
baby Dan

In our selection, you will find window locks of the brands ABUS and Burg Wächter. We have chosen these because they were very well rated on

How can I protect my home properly?

Burglars are still a big problem these days, although easy to follow tips can help. Burglars profit above all from the carelessness of homeowners. If you don’t want to experience such horrors within your own four walls, read on.
The most common burglaries occur through windows and patio doors. Windows also pose a great danger to children or pets, who can easily fall out of the window.

Stiftung Warentest consumer magazine
You can prevent burglars from breaking into your home with simple tricks. You should avoid anything that suggests that the residents are away. This includes overflowing mailboxes, overgrown front gardens or empty garbage cans. You can also install a timer that switches the light on and off.

A window safety device can help to provide more security. The uncomplicated installation of special security technology in a modern design demonstrably serves to provide security to a considerable extent.

Intrusion protection
Roller shutter protection

Burglars want to obtain valuables as quietly, quickly and easily as possible. They shy away from obstacles that are rather difficult to overcome and quickly choose another target.

If they encounter unplanned obstacles, they abort their project again. Often an effective window security system can already put the first thieves to flight.

Although the number of break-ins has been declining somewhat in recent years, there were still almost 100,000 reported break-ins in 2018. So it makes sense to protect his property and his family.

To give you a better overview of the number of burglaries in recent years, I have created a table with the current figures for you.

How does proper assembly work?

Caution is required here, because if the window safety catch is not correctly fitted, reliable protection is not guaranteed. It is best to hire a specialist if you are not sure how to install the window locking device correctly.
It is also important to mention that insurance companies often only cover the damages of a burglary if they have a window lock. If you follow these tips, the burglar will soon realise that he cannot get anywhere in your home and will look for a next target.

Mount the window lock properly according to the instructions, otherwise there is no protection.

Decision: What types of window locks are available and which one is right for you?

Basically one can distinguish between two types of window locks:

  • Mechanical window locking
  • Automatic window lock

In the following section we would like to introduce the different types in more detail to help you with your purchase decision. We will also introduce you to the functions and the resulting advantages and disadvantages of the individual types.

How does a mechanical window lock work and what are its advantages and disadvantages?

There are various solutions for mechanical window security to protect against break-ins. Mechanical window locking devices can be attached without any problems and are therefore also suitable for older windows. Many models can also be attached to patio doors.

A lockable window handle is a type of burglary protection. Due to the locking mechanism the handle cannot be moved. Even if the burglar smashes the window glass, he will have difficulty turning the handle.

However, a window handle alone is usually not enough. Most burglars lever out the window with brute force. It is therefore recommended that you install several locking systems on your window at the same time.

An additional option is the inexpensive and effective telescopic rod. The rod can be mounted on the inside of any window. The burglar cannot easily lever the window open due to the resistance of the security bar.


Windows can be easily retrofitted
Suitable for older windows
Easy mounting and handling


Maintenance intensive
No effect with outward opening windows

Another variant is a window lock that can be locked from the inside. You can use this either with or without a key. In the window lock there are several bolts which are interlocking.

They withstand high pressure on the hinge side. This makes it difficult to lever the window open. In addition, you can position the locks at almost any point of the window frame.

However, the bars and locks need to be maintained. Make sure that you regularly re-grease the burglary protection to counteract wear and tear. Furthermore, the additional burglary protection is ineffective with windows that open outwards.

Did you know that most burglaries occur during the winter season?
Especially the months in late autumn and winter are popular with burglars because of the early twilight. In October, November, December and January, burglars have high-capacity […]

How does an automatic window safety device work and what are its advantages and disadvantages?

The electronic intrusion protection works with the help of an alarm function. If the burglar attempts to open the window, the vibrations trigger an acoustic or visual alarm signal.

The signals frighten off the burglar. In addition, an alarm attracts the attention of passers-by and neighbours, who could also be potential witnesses in the description of the perpetrator. The automatic window locks can be installed without much effort.


Alarm signals attract attention
Easy installation
Power independent
Can be combined with other monitoring systems


Batteries must be checked

In general, the models are battery operated and independent of the mains supply. They continue to operate reliably even in the event of a power failure. However, you must make sure that the batteries can always provide sufficient power.

If you have other security systems such as a surveillance camera, you can combine them. When the alarm sounds, the security camera system is activated and the break-in is recorded at the same time.

To make your house a safe place, you should use not only mechanical, but also automatic burglar alarms.

Purchase criteria: You can compare and rate window security devices based on these factors

In the following, we would like to explain in more detail the factors you can use to compare and evaluate window locking devices. These are the following criteria:

  • Item weight
  • Dimensions
  • Material


There are window locks that only weigh a few grams, then there are window locks that weigh more than a kilogram. This varies greatly from model to model.

It depends of course on the size of the fuse and thus on the size of the window, but also on the material and the locking mechanism. Have a look at fuses at the consultant on site and test what feels good.


The dimensions of a motion sensor are very similar. This is of course because our windows are similar and there are some common dimensions for which the fuses are made.

If you have to secure special windows, you will be able to ask certain companies or specialists if it is possible to get a custom-made one.


There are window locks made of steel, but most window locks are made of plastic. The material significantly influences the weight and price. How it looks like with the actual security, you must ask the manufacturer, the consultant directly.

The police also hold information events on this subject time and again.

Trivia: Worth knowing facts about window security

Do window locks offer good protection?

Window locks offer great resistance. It is very helpful to hinder the burglar right from the beginning of his break-in.

Burglars often want to make it as easy as possible for themselves, they encounter resistance, they are quickly gone again and look for another target. The narrow and practical window locks can achieve resistance of up to a ton and will put any burglar to flight.

Even a window tilt protection can be enough to deter a burglar. It ensures that a window is locked, even if it is tilted.

Did you know that most burglaries don’t last more than 20 minutes?
Time is always a factor in burglaries. Of course, the burglar should use as little of it as possible. With the right security system, you can make it as difficult as possible for the burglar. The most easily accessible parts of the house should be secured. According to statistics, a burglar gives up if he is not in the building within two to five minutes.

In any case, you should also protect the patio door with a window lock. This involves steel bolts that are attached to the lock box. These steel bolts also have a resistance of one ton.

Windows with double sashes can also be secured. In this case, the window securing device is attached to the middle of the window and thus provides additional resistance.

For simple windows, you must also attach a window lock on the opposite side in addition to the handle side. After all, burglars can quickly try it there too.

Window locks offer great resistance against burglars. This makes it more difficult for burglars to break in the windows.