Freeze damage happens fast and gets expensive quickly. Water expands when it freezes, so any water left in your plumbing lines, pump, filter, or heater can crack pipes, destroy equipment, and damage your pool structure. We’ve seen single freeze events cause thousands in damage – cracked pump housings, burst plumbing lines, damaged pool surfaces, and destroyed filtration equipment. Even worse, this damage often isn’t visible until spring when you try to open your pool. Insurance typically doesn’t cover freeze damage from improper winterization, so you’re looking at major out-of-pocket repairs.