. >> for jason nardelli and kristen hanna, every last drop of water has to go. their mission to prevent scenes like this, water spraying from pipes that froze then burst. >> a lot of people are going to get caught off guard here. >> reporter:s t >> reporter: the technicians were busy winterizing homes in jersey city before temperatures take a nose dive tonight. >> what's coming, it's pretty important, especially when the wind blows right through. >> reporter: the arctic air has prompted a flurry of messages for homeowners all along the jersey shore to make sure their house are properly winterized. >> generally it's outside showers it starts, but then when it gets colder, it moves inside, then we see houses flood out. >> reporter: we're told winterizing your house should only cost a few hundred dollars, but that could save you thousands. if your place at the shore isn't yet prepped for winter, consider taking a trip down to at the very least, turn up the heat. >> once your is frozen, we can't winterize it. >> reporter: ted greenberg, nbc10 news. >> are those peop