Hey, I totally get where you're coming from. My grandma had a similar situation when she moved to a smaller place last year, and her piano was her most cherished possession. We were so worried about finding someone who would treat it with the care it deserves. After some searching, we found this great company,
Piano Moving Orlando Area. They specialize in piano moving, and they really understood how important it was to our family. They took such good care of it! You can check them out here: Orlando Express Movers. Hope this helps, and best of luck with your grandma's move!