Pipe replacement is the process of removing old or damaged pipes and installing new ones to ensure proper water flow and prevent leaks. This is often necessary in plumbing systems where pipes have corroded, cracked, or become blocked over time. The replacement can involve various materials, such as PVC, copper, or PEX, depending on the specific needs of the plumbing system. Professionals typically assess the condition of the existing pipes before determining the best approach for replacement, which may include trenching or using trenchless technology to minimize disruption.