A fixed schedule everyone agrees on
The best thing management can do is set a fixed annual cleaning schedule and tell residents at the start of the year. When people know cleaning happens in a given month at a known interval, objections drop and the service becomes routine instead of a surprise.
Choose timing that does not clash with the building's peak periods, such as holidays when residents are home or school days. If an urgent cleaning is needed because of an odor or contamination, treat it as an exception and notify residents immediately.
Keep the schedule written and posted at the entrance or sent through the residents' group, along with the date of the last cleaning and the mid-cycle inspection.
