Showers on the island take a beating, and in a villa a shower problem can become a neighbour problem quickly.
Leaks that reach the unit below
In stacked properties, a failed shower pan or a leaking drain connection does not stay in your bathroom. Because the damage shows downstairs first, it is often reported by someone else before you notice anything. Finding out whether it is the pan, the drain or grout letting water past matters before anything is opened up.
You may not need to lose the tile
Many valve repairs are reached through the existing trim plate or a small opening in the wall behind. Before agreeing to a quote that involves taking out tile, it is entirely reasonable to ask whether the valve can be reached from behind.
Outdoor showers and salt
Sun, salt and sand all summer, then unused all winter. Valves seize and heads block with a mix of salt and scale. Most of it rebuilds rather than needing replacement, and draining the line before a freeze prevents the most common burst we see here.
Sand in the drains
Shower traps in a beach property fill with sand over a season, particularly in a rental. Worth clearing properly rather than waiting for one to stop.