Miami rain can arrive as a short vertical shower or as a tropical band driven off Biscayne Bay. Those two storms wet different parts of the same chimney. Vertical rain finds an open crown, a missing cap, or a rusted chase-cover seam. Wind-driven rain also tests the uphill flashing, the chase siding, and joints that stay dry in a quiet shower. Hurricane chimney repair is the statewide page when wind, a displaced top, or storm-week water is the reason for the call. A stain that returns after ordinary afternoon rain still belongs first to leak diagnosis.
Bay air also changes metal faster than an inland roof. Caps, screens, fasteners, and chase covers pit at folds before the stack looks failed from the street. A rust streak is evidence, not a complete diagnosis. The correct top still depends on whether the chimney is masonry or a framed chase, and on the venting the fireplace needs.
Older Brickell-adjacent and downtown masonry can need a different conversation from a later suburban chase. Open mortar, spalled faces, or a leaning upper section may point toward masonry repair or a chimney rebuild of the failed portion. A sided chase with a failed lid is still a chase-cover job. Naming the system at the address keeps those scopes from being bundled into one guess.