Arrived on site and customer had a supply toilet that they wanted to replace in the upstairs bathroom. I went ahead and removed the toilet that was having issues and found that the flange was not at proper height, as well. I also informed the customer about the potential issues with the flange and provided an option to have that replaced. Customer agreed to have the flange and toilet both installed, which I proceeded to do. After toilet was installed, I went ahead and caulked around the edges and flush the toilet several times to ensure no issues.