Homeowner’s insurance will cover you if a pipe bursts or a water tank starts leaking. But you’re out of luck if the water is coming from outside your house. That means that any flooding caused by a tidal surge or any freshwater sources, like a lake or stream, is not covered by your homeowner’s insurance. There’s a lot that your typical homeowner’s insurance policy will cover—fires, hurricanes, lightning strikes, and other disasters. But floods aren’t one of them. Just 1 in. of water i...