Andy Hall wrote:

What did work, and is a hardware solution, was to take the door off of
their bedrooms for a week or until the door banging stopped. Privacy
is one of the most valued things to a teenager and it did seem to work
better to address the issue rather than the symptom.

Teenagers are examinng their ability to affect the world at large, and
in whet way, and see how far that power extends.

A solution that basically shows them that their power does NOT extend to
replacing a door you have removed, is salutary, and basic. Go for it.

A teenager is a child desperately trying to become an adult. If they
behave like children, treat them like children.