What causes a Vibrating and Noisy-Growling Tap/Pipe/Boiler?

Question

Whenever I open my hot tap, the pipes and the boiler always vibrate making this grrrrrrrrrrrrrrrr vibrating noise. This never happens when I switch off the boiler or with the cold water tap. I have had the British Gas people take a look at the boiler but they say it is nothing to do with the boiler and must be the tap or the stop cork (which is not covered by their agreement). Does anyone have an idea about what may be the reason as I do not want to fork out for an independent plumber when I am already on a maintenance contract with British Gas.

Answer 1

Hi, I have a new valliant combi boiler that works well, however when the rads are working or the taps are turned on there is a lot of additional noise, the noise from the rads is so loud it wakes the whole house up when it starts in the morning and the taps we don't turn on after the kids are in bed as its that loud, the noise from both is like flowing water, can any one help