Once the thaw is successful, prevention becomes the priority. The recurrence of a freeze indicates a systemic failure of insulation. Remediation strategies include burying the pipe deeper below the local frost line, wrapping the pipe in heat tape (electrically powered heating cables), or installing insulated pipe sleeves. In extreme climates, a "bleeder line" may be installed—a small, continuously running trickle of water that prevents freezing through kinetic energy, though this is wasteful and generally discouraged unless necessary.
Stop immediately and call a plumber if:
Inside your home, disconnect the main water line where it enters the house (after the main shut-off valve). how to thaw a frozen pipe underground