The answer to 'why is my floor dirty' is that there are several common causes, including foot traffic, spills, pet messes, and general wear and tear. Symptoms can include visible dirt, debris, stains, or a dull appearance. To address a dirty floor, you'll need to determine the root cause and take the appropriate cleaning steps.
For minor issues like light dirt or debris, you may be able to handle the cleaning yourself with a mop, vacuum, or spot cleaning. However, for more stubborn stains, deep cleaning, or damage, it's best to call in a professional cleaning service. They have the right tools, products, and expertise to get your floors looking their best again.