intruder-resistant windows

the expert in intruder-resistant windows

Together with the entrance door, windows are the exterior elements of a building that are most susceptible to intrusion. This means it is particularly important to give careful consideration to windows when taking measures in the area of intruder resistance. Why not contact aalbers|wico - the specialist in structural intruder security! We manufacture, supply and install intruder-resistant windows precisely in accordance with your specifications. If you wish, they can also be offered in combination with ballistic-, blast- and fire-resistant properties.

tested by ‘intruders’

The resistance value of our windows has not only been calculated on paper – it has been tested in practice too. At our own test centre we can see how our windows stand up to the toughest of challenges. Using a range of tools, experienced ‘intruders’ test various aspects of a window’s resistance, in accordance with the applicable division into resistance classes.


Our windows are based on standards such as NEN 5096, EN 1627-1630, EN 356 and ISO 16936, but we can also go one step further. If stipulated in the Schedule of Requirements, we can supply a window offering the actual level of resistance you need. The official standards form the starting point here, but the window undergoes further testing on the basis of additional criteria.

Find out more about standards for intruder-resistant windows in our knowledge centre.

testing methods

The standards in the area of intruder resistance require windows to be tested in three ways: with a static load, with a dynamic load and by means of manual intrusion tests.

Find out more about testing methods for intruder-resistant windows in our knowledge centre.

resistance classes

In the case of manual tests, the resistance class of an intruder-resistant window is defined on the basis of two factors: the time the ‘intruder’ takes to force his way through the window and the tools that may be used for this purpose. The longer the time taken and the heavier the tools, the higher the resistance class.

Find out more about resistance classes for intruder-resistant windows in our knowledge centre.
Want to find out more about our intruder-resistant windows or receive a quotation based on your Schedule of Requirements?
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