Grout is a wear item
Grout looks permanent and is not. It hairline-cracks with the house's seasonal movement, powders out of high-traffic floor joints, and darkens in showers no cleaner can rescue. Regrouting is the honest fix: the failed joints raked out to depth, fresh grout packed and tooled, then sealed once cured. A regrouted shower reads as new tile at a tenth of the cost — and it closes the tiny water paths that were feeding the wall behind it.
The joint that should never be grouted
Where tile meets tub, two materials move differently, and rigid grout in that seam is doomed from the day it cures. That change-of-plane joint wants a flexible sealant bead instead — which is why the same corner keeps failing for owners who regrout it on repeat. Getting the right material in the right joint is most of the trade.
Cracked and hollow tiles
A dropped pan or a settling slab leaves the occasional casualty. If spare tiles survived in the garage — and in this county's tract homes they often did — a single tile swaps out cleanly: the broken one chiseled free, the bed scraped, the spare set and grouted to match. No spares? Then it becomes a matching hunt or a decision to borrow from somewhere hidden, and you deserve those options laid out honestly, price and all, before anything is demolished.
Small jobs that save big walls
Every one of these repairs is really water management. Sound grout, the right bead at the tub, no cracked tile drinking mop water — that is what keeps a fifty-dollar fix from maturing into a rebuilt shower wall. Batch the bathroom list and let one visit close it out.