The answer to 'floor stained' is that there are several common causes, including spills, tracked-in dirt, and wear and tear over time. Symptoms can include discoloration, fading, or a dull appearance. Solutions will depend on the type of flooring and severity of the stain, but may include cleaning with the right products, refinishing, or in some cases, replacement.
For minor stains, homeowners can often address the issue through DIY cleaning methods. However, for more stubborn or widespread staining, it's best to consult a professional cleaning technician. They can assess the situation and recommend the most effective solution, whether that's deep cleaning, refinishing, or other specialized treatments.