This particular type of damage is capable of causing unsafe living conditions like a weakened roof or rotting floor. First, you will need a few tools; adjustable pliers, flat head screwdriver, "Phillips" or cross head screwdriver, along with perhaps a smooth jaw wrench. https://dailybathuknews.com/2023/05/14/why-do-you-need-a-grout-specialists-to-repair-your-leaking-shower