Was heißt »Hausbesorger« auf Englisch?

Das Substantiv »Hausbesorger« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Englische Beispielsätze

Tom is a school janitor.
I am the caretaker of this child, and they are my care-receiver.
Tom started as a janitor, but he's now the president of the company.
Tom is a janitor.
Tom is a caretaker.
Tom isn't a caretaker.
Tom's not a caretaker.
The caretaker's office is in the mezzanine.
Tom is not a caretaker.
Tom is a school caretaker.
Excuse me, we're looking for the caretaker. Isn't there one here?
He's the building's caretaker.
He is the caretaker of the building.
Is Tom still the caretaker? How long has he been in the job?
On one occasion some pupils locked Tom in the classroom cupboard where he had to remain for five hours until the school caretaker finally heard his cries and let him out.