noisy pipe when the hot water is turned on

[Jemma]

Hi,

Can anyone help, I have a combi boiler, when I turn the hot water on anywhere in the flat the pipes bang.
I have looked at the pipes, but they keep banging even when I move them.
I have tried turrning the stop cock up and down.
Nothing seems to help.

 

[kevplumb]

can you describe the noise in more deatail

have you had any work done on the system recently

 

[Jemma]

Hi,

The sound is like the pipes are vibrating and knocking against something, but even when I hold the pipe and turn the hot tap on it still vibrates.
It seems like it is the pipe going up to the shower, unfortunately this is the only bit of pipe behind plaster board.
Also the shower is the furthest hot point away from the boiler.
I have had no work completed recently, I thought it might just be due to the cold weather as it has been like it for some time, but the banging noise is getting worse.

Cheers

 

[kevplumb]

could be a tap on its way out

 

[Jemma]

Oh right, how do I find out which tap?
It makes the noise when the kitchen or the bathroom tap is on.
I know it is naughty and I am going to get it done but I have not had the boiler serviced for two years, but it was new two years ago.
Someone suggested it could be a boiler problem.

 

[Bahco]

Pipe may need clipping

 

[PEDANTICVINDICTIVEMAN]

Normally a loose pipe or more likely a worn tap (s) vibrating, mine do it with my combi on my basin tap, cant be arrssed to sort it.