04/09/2026
Ever hear ticking, knocking, or movement from your plumbing when you turn on hot water? Copper can transmit more plumbing sounds through the framing of a house. PEX is flexible and can absorb more vibration, which may make a properly installed system quieter. But here’s the important part: pipe material isn’t the only factor. So if your house already has noisy pipes, replacing the material alone may not solve the entire problem.