We are caulk experts. New caulking around the tub and or shower edges provides that clean look you have been trying to achieve. Nothing seems to gross us out more than that black caulking we see every time we shower. After we cut out your moldy caulking, we will also treat that stubborn reappearing mold, mildew and fungus at the source. Shower caulk should be replaced every few years. Especially if used heavily. Bathroom caulk should be free from mold. Our environmentally friendly products are designed specifically for wet areas and provide a superior seal and appearance. Shower is ready to use in 24 hours.