Frozen Waste | Pipe
If you have PVC or ABS plastic pipes and you know exactly where the blockage is (usually an uninsulated exterior wall or a crawlspace), you can try to thaw it yourself.
If your kitchen waste pipe is in an exterior wall, open the cabinet doors underneath the sink on freezing nights to let warm house air circulate. When to Call a Pro If you have tried heat for two hours with zero success; if you have cast iron pipes; or if you cannot find the location of the freeze, call a plumber. They have steam machines and electric thawing equipment designed specifically for this. It will cost you a few hundred dollars, but that is significantly cheaper than replacing a burst pipe and remediating sewage damage. frozen waste pipe
Place a small ceramic space heater facing the frozen section of the pipe. Do not leave it unattended. It may take 2-4 hours, but the warm air circulates safely without risking melting the plastic. If you have PVC or ABS plastic pipes
