Frozen pipes can sometimes thaw on their own as temperatures rise, but there is a risk of the pipe bursting if the process isn’t carefully managed. As ice blocks the pipe and water pressure builds up, it can lead to cracks or a burst. It’s safer to address frozen pipes proactively by gently warming them with a hair dryer or heat lamp, keeping faucets open to allow water to flow, and calling a plumber if you’re unsure.