I wrote a previous report for A Clean Slate's carpet cleaning and mentioned that I was so impressed with their carpet cleaning that I scheduled them to come back to clean my tile floors. They did another excellent job! My tile floors have never been professionally cleaned. It has been 18 years since the tile was installed. That was back in the days when grout color was ivory, ugh! Needless to say, the grout color, especially in my kitchen, was no longer ivory. I figured that as long as most of the grout color was approximately the same color of brown that people wouldn't really notice. I tried using a 50% Clorox mixture on my grout and scrubbing it vigorously. I even used a face mask/respirator to keep from passing out. That worked sort of but really didn't make it look good. My house cleaner kept mentioning that I really needed to get it professionally cleaned so I figured I'd give it a try. I HAD MY DOUBTS!! If Clorox couldn't get it looking good, what was the chance that steam would work? Wow, I was surprised! It looks great! I'm very impressed. My next appointment, in a couple of weeks, is window cleaning. Will update how that goes but am a believer now. If they say my windows will look like new, I suspect they will.