Writing this post for a friend of mine that has had a long standing dispute with her plumber.
In a nutshell, she commissioned him to replace her entire bathroom and install a new thermostatic shower.
The work was shoddy from the get-go but since the shower was installed, she noticed that turning on any cold tap in the flat, causes her Potterton combi boiler to fire up. The boiler is less than a year old and has never experienced this issue before.
She explained this to the plumber who shrugged it off saying it was nothing to do with him so she got Potterton to inspect. They confirmed that it was nothing wrong with the boiler but said that it looks like it's to do with the new plumbing for the bathroom.
She has also asked a mechanical engineer for his take on it and he has said the same thing.
My question is to qualified and experienced plumbers, what do you think the cause of this could be? We have our own thoughts but want to gather ideas of what to do.
If the cause can be proven to be the plumbers fault, what can she do to get this rectified and what complaints procedure does she need to follow and with who? The plumber is gas safe registered but I'm not sure if her complaint can be put to them if it's not gas related? Or am I wrong?
I'd appreciate your help.