I was satisfied with the result of finishing in the bathroom. The black joints between the tiles finally became white. The chemical is very concentrated, bleaches well, but it is better to be able to leave the apartment for a while, and the longer the better, because the smell is very strong. Also, I think you should not rush to wash off the chemical for better results. It took me about a week for everything to wash off. Overall, I recommend mold remediation in Plano, TX