What could cause banging noise in hot water pipe lines whether the water is running or not? The noise happens when the hot water is turned ON wherever in a two level house. The banging noise also happens when NO faucet is running. We have installed an expansion tank above the gas water...

My house is 4 years old. We moved in 2 years ago. There was no baning at that time. About 1 year ago, the house developed 2 banging sounds at different spots. 1. When I runn my up stairs shower/bath/sink hot water a get a loud and consistent banging sound from the wall. 2. When I run...

I bought a basement condo a year ago and my neighbors heat pipes goes through my bedroom. Since the day I moved in his furnace has been making clicking and loud banging noises. Last year, we have had a couple of plumbers come in and they have bled the pipes and said that should take care of it....

When upstairs tub valve is opened for the first time in the evening, loud banging noise sometimes ensues from pipes. Banging is alleviated when supply is redirected to showerhead, or when water is turned off. Single-handle Pegasus (Home Depot) valve. No issues when supply is off (not "water...