The answer to 'repiping frozen' is that repiping is often necessary when a home's plumbing system has frozen and burst. This can happen when pipes are exposed to freezing temperatures, such as in attics, crawl spaces, or exterior walls. Symptoms of frozen pipes include no water flow, strange noises, or visible frost or ice on the pipes.
In many cases, the damaged pipes will need to be replaced, which is known as repiping. This involves removing the old pipes and installing new ones. Repiping is best left to professional plumbers, as it can be a complex and labor-intensive process. DIY repiping is not recommended, as it requires specialized tools and expertise to ensure the job is done properly and safely.