Noisy pipes or water hammer
Answer: call a plumber.
Banging, clanking, or rattling pipes — often called water hammer — happen when water flow is suddenly stopped and the momentum creates a shockwave in the plumbing. This can loosen joints, damage valves, and eventually cause leaks. Other pipe noises include whistling from partially closed valves or humming from high water pressure. A plumber can install water hammer arrestors, secure loose pipes, adjust pressure regulators, and replace worn valves to eliminate the noise.
Who to call
For this problem, call a: Plumber
Symptoms to look for
- Loud banging sound when a faucet or appliance shuts off
- Rattling or vibrating pipes inside walls
- Whistling or humming sound when water is running
- Pipes shaking visibly when a valve closes quickly
- Recurring clunking noise from the water heater area