ᐅ Burglar-resistant windows?

Hello everyone,

I have the following issue:

We are currently planning to renovate/refurbish all the windows in our old building, but we want to make our windows as burglar-resistant as possible (due to a past break-in). Do you have any tips or know of reliable companies that specialize in this? So far, we haven’t found any trustworthy firms.

Thank you in advance!

Manuel

Hello Manuel,

manuelbochum schrieb:


I have the following problem:

We are currently planning the renovation/refurbishment of all the windows in our old building, but we want to make our windows as burglary-resistant as possible (due to a break-in). Do you perhaps have any tips or know of reliable companies that specialize in this? So far, we have not found any trustworthy companies.

What you are referring to are RC II windows, formerly WK II. Visit the police website, where you will find reliable companies that offer certified windows.

Best regards, Bauexperte

The police can advise you on this. At least where I live, there are regular seminars on burglary prevention.

What you are probably looking for are WK5 windows (resistance class 5). But from practical experience, I can say: they are expensive and only provide limited protection. If someone wants to get in, they will find a way. I worked as a locksmith and have forced open various windows. All windows up to WK4 resistance class can be opened with a crowbar—some faster, others slower.

Apparently, opportunistic burglars do not break in if they encounter resistance, so WK3 windows might be sufficient.

I find roller shutters with anti-lift protection or motion sensor lights, which can be turned on while you're away, to be more effective. No burglar will force open a window under full lighting.

I cannot and am not allowed to mention specific companies here.

No window is completely burglar-proof, but there are windows that make break-ins significantly more difficult.
In our case (I myself work in the police), there is a crime prevention officer you can call if needed. They come to your home, inspect other potential exits besides the windows, and provide advice.
In every larger police station, headquarters, or similar facility (terms vary by country), there is an officer responsible for crime prevention to protect property.

Hello Der Da,

Der Da schrieb:

No burglar would pry open a window with full lighting.

This is only partially true...

At our place, they tried to break in through the front door in broad daylight...

For this exact reason, we recommend our clients to focus on RC 1 N security level for the front door, which is not exactly the former WK II standard but still makes unauthorized access to the interior of a house significantly more difficult, and it is far less expensive than certified RC II (formerly WK II).

And by the way, one thing I have learned from our "experience" is that opportunity makes thieves, whether it is fully lit or not... even anti-pry protection on roller shutters won’t help. In broad daylight, every burglar is happy to pose as a tradesperson :-(

Best regards, Bauexperte

I have experienced something similar. Some burglars nowadays even use heavy equipment!