Heaven's Best Carpet and Upholstery Cleaning worked on the tile floor we have in our kitchen and dining room. We called because we could tell the tiles were getting dirty, but I didn't realize how much it needed it until the technician showed me how the grout had discolored in just a few years since we had it installed. In the corners, where we never walk, the grout lines are the original color, but out in the middle, it was dark and grungy, even though we mop regularly. They stripped everything back to clean and then resealed the grout lines. Very pleased. The floor looks new again.