The caulking around your tub, shower, sink, and backsplash is a vital piece of protection against water damage. In time, most caulk will mold, dry up, peel, or crack. If ignored, exposed caulk or grout joints can result in severe water damage and costly repairs. In extreme cases, a complete tear-out or replacement is needed. It is important to maintain the caulking around areas exposed to water. New caulking will even drastically improve the look of an existing tub, shower, sink, or backsplash. Be on the lookout for moldy or worn caulk.