What is the fine-grained topic of the following text: Though it might sound like a wise decision to simply call a local emergency plumber or plumbing company, the fact is that a PEX or Copper Repipe is a repair procedure that involves not simply the Repiping operation, but the care and expertise in the entire repair service, including patching up the exposed walls and shielding the furtinure. Only return the topic.
PEX or Copper Repipe Repair Procedure