Southwest Florida takes hurricane season seriously, and Marco Island has particular reason to: Hurricane Irma came ashore right here in September 2017. A barrier island catches tropical systems with nothing to blunt them: wind off open water, driving rain, and salt spray thrown far inland across the island. The chimney chase is the tallest, most exposed structure on most Marco homes, and it takes all of that first.
Storm damage to a chimney is rarely dramatic from the ground. A cap racked loose, a chase cover peeled at one corner, flashing lifted a half inch at the roofline. Each looks minor and each lets the next ordinary afternoon storm pour water into the house. After any system passes close, a slow walk around the house looking up is worth the five minutes, and anything shifted, missing, or newly streaked deserves professional eyes. Tired flashing is the classic quiet failure: it survives the storm, then leaks all summer.
The rest of the wet season does its damage retail instead of wholesale. From June through September the island gets its rain in heavy afternoon doses, and a chase with aging sealant or a hairline gap at the cover absorbs that beating daily. Chimney leak repair on Marco Island starts with finding the true entry point (cover, cap, flashing, or siding joint), because caulking the wrong seam doesn’t stop water, it reroutes it somewhere more expensive.