A lot of St. George new construction from the last fifteen years used travertine in entryways, kitchens, and main living areas. The stone is full of natural pits, and red dirt from outside settles into those pits and stays there. That is the dingy look people complain about, and it is not something a mop will fix.
Most installs around here are honed travertine, not polished. Honed has a softer matte finish that hides minor wear, while polished shows every walking path. Knowing which finish you have changes what we do next, and we will tell you straight if your floor only needs cleaning instead of full polishing.
Filled travertine is the other wild card in this area. The factory fill in the holes can pop out over time, especially in heavy traffic spots near the front door. We can refill those holes during the job, but we will be honest about whether sealing first makes more sense than polishing right away.