die Renovierungsarbeit
renovation work
An activity or project in which a building, apartment, or room is renewed, restored, or modernized. The word is very often used in the plural ('Renovierungsarbeiten', renovation works/renovation work).
Die aufwendige Renovierungsarbeit am alten Badezimmer hat sich wirklich gelohnt.
The extensive renovation work on the old bathroom was really worth it.

