The water pipes in the residential building are frozen? What if I can't find a property?

Do it yourself, pour water, start with cold water, and the temperature will rise every time. Don't pour it with boiling water at first, the cast iron pipe fittings will crack. After opening, use foam insulation pipe to keep warm. If the distance is not long, it won't cost a few dollars. When the temperature here is below-12 degrees, we must turn on the tap to prevent freezing.