Most homeowners notice their stone or tile long before they notice the grout. That's understandable. Marble catches the light. Travertine adds warmth. Limestone creates a timeless appearance. A well-installed tile floor creates visual structure throughout a room. Grout sits quietly between it all, doing its job without much attention. Once grout starts to darken, stain, or develop uneven discoloration, the entire surface begins to look different. The stone may still be in