When you have loud neighbours who ignore the quiet hours and disturb your sleep, you can call the police and file a noise complaint. This is a normal and acceptable way to deal with loud neighbours.

1. Find your local Ordnungsamt

2. Call and file a noise complaint

Simply call your local Ordnungsamt using the contact information above, and explain the situation. The Ordnungsamt will send a pair of police officers to knock at your neighbours' door and ask them to be quiet. Usually, one or two calls are enough, even for the most resilient neighbours.

3. Notice the Hausverwaltung

When the same neighbour always makes too much noise, you can complain to your building management (Hausverwaltung). They will usually notify him, and if the problem persists, he could get kicked out.