Marble, porcelain and the expensive ways to clean a floor wrong
Porcelain and ceramic tile, standard in newer towers and much of Sharjah and Ajman, are far more forgiving — the risk shifts to grout, which stains and darkens and is the first thing a viewing tenant notices. Grout work is a legitimate deep-clean item, not something a regular hourly visit covers.
Unsure what you have? Marble is cool to the touch with veining that runs irregularly, and no two tiles match; porcelain repeats its pattern. When a cleaning company asks about your floor type before quoting, that is a quality signal. When they never ask, that tells you something too.