If you’ve ever turned off a faucet and heard a loud rattling, banging, or knocking sound echo through your walls, you’re not alone. Noisy pipes are a common plumbing issue in San Jose homes , especially in older houses or properties with aging plumbing systems. While some pipe noises are harmless, others can signal serious problems that may lead to leaks, water damage, or costly repairs if ignored. In this guide, we’ll explain what causes rattling sounds in pipes , how to id