A door can be retrofitted with a crossbar or armored bolt lock (Quer- oder Panzerriegel) in order to effectively withstand violent break-in attempts.
With a crossbar lock system, a wide metal bar is firmly anchored across the entire width of the door, from the lock side to the hinge side. It is crucial that the crossbar lock is professionally installed into the masonry. In addition, the cylinder built into the crossbar must be tamper-proof. It must feature core pull protection (Kernziehschutz) so that the cylinder or the cylinder core cannot be pulled out.

Crossbar or armored bolt lock systems are suitable not only for house or apartment entrance doors, but also for other security gaps, such as basement doors, warehouse doors, etc.

There is a whole range of different crossbar locks. Every type of door has its own characteristics and requires an individual safety engineering solution.

Take precautions and look after the security of your property in good time, supported by the safety engineering professionals at Amper Schlüsseldienst in Munich.
We will create a security concept for you, measure the door on site, and advise you competently on the eligible model. You will then receive a non-binding offer from us. If you decide on a crossbar or armored bolt lock from Amper Schlüsseldienst München, we will install it professionally on your front door, apartment door, or basement door. Feel free to arrange an appointment!