I have been speaking with them this morning, explained everything, they said there water quality team will ring me back today.
They sounded sincere so hopefully someone will come out and check my water first and then hopefully check what they have done next door.
Water Quality, well the equivalent, can't remember exactly what term they used, thanks again for your replies.
That's what I thought, but I just needed to be sure, the reason is, if I poured a filtered glass of tap water to drink at night, if I tried to drink it in the morning I had to spit it out, it tasted so stale and bad, I mean year old stale.
But hopefully they haven't tempered with it near the stop cock and my main tap pipe is uneffected, thanks.
Well I got wet so it seems it's mains, the water pressure in my house has been insanely high since my previous neighbors house conversion, extension, he was a compulsive diy'er, never known a time when he wasn't converting or building something new.
Finally got a call back from water authority, they didn't seem interested in next door dispite my concerns and seemed more interested and insistent that the water quality was due to factors in my house.
These included new piping, rubber seals reacting with the clorine etc, even my washing machine, but they finally agreed to try and check my neighbors.
So finally I got through to them that all I wanted was my water checked, and that everything nextdoor was as it should be, even if they could just check the stop cock next door which is outdoors.
I still don't know about the electric situation, if it was bypassed is it now turn off and safe.
I just get told the same thing, contact your local council but they don't want to know.
As the property was at the time permitted to be converted into bedsit by the council it then should come under certain health and safety laws as it's become a boarding house, guest house etc, especially any electrical work, it has to be checked and certified.
So thank you all for your kind help, I don't want to bother you anymore but will update you when I know more.