These freezing cold temperatures in Chicago can definitely wreak havoc on a home's plumbing system. In fact, we've already had a considerable amount of service calls specifically related to frozen and burst pipes. Although, it may make sense to lower your home's thermostat to save a little bit of money, we highly recommend that you keep the thermostat as-is to prevent any vulnerable pipes from freezing. Any questions? We're here to help! (773) 570-1720