The cost of a missed commercial janitorial call is specific. The lobby is still dirty when the first employee badges in.
The caller had square feet, floors, and that the crew starts after 7 p.m.. A voicemail that says "call me back" drops all of it. They do not reconstruct the note for the company that failed to answer.
Flu season and the week a new tenant moves in, when a five-night contract cannot skip a floor makes the miss louder, because the next company that picks up takes the window. Uma writes square feet, floors, and that the crew starts after 7 p.m. while the caller is still on the line, then a local company calls back with a real time.
The Cleaner minutes is the planning total, cleaner-minutes. It does not bill anyone. It keeps the callback from starting at zero.



