As it leaks into your porous backer material it gets to your studs and causes them to get waterlogged, grow mold and mildew and eventually begin to rot. When that happens there is no longer any support left for the tile and the only way to fix the shower or tub surround is to rip it out and rebuild it from scratch.

How often should you retile a shower?

Reseal your shower tile and grout every one to two years, depending on how often the shower is used.

Should I retile my shower?

Many choose to revitalize their bathroom by retiling the shower. It can be a lengthy and sometimes timely project, but those who do bite the bullet almost always agree that it is well worth it.