The answer to 'my repiping is leaking' is that there are several common causes for a leaking repiping project, including improper installation, corrosion, or damage to the new pipes. Symptoms may include visible water leaks, water damage, or mold growth. The best solution depends on the cause, but often requires calling a professional plumber to diagnose and repair the issue.
Repiping is a complex plumbing job that is generally not recommended for DIY. Improper installation can lead to leaks, water damage, and other serious problems. It's important to hire a licensed and experienced plumber to ensure the job is done correctly and to code. They can identify the root cause of the leak and make the necessary repairs or replacements to stop the leak and prevent future issues.