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Deleted member 294929
I have exactly the same problem with my neighbour's taps and plumbing and with the neighbour's response - I believe the problem is amplification in the party wall. The pipes have been attached to the wall and the wall acts like an amplifier when anything is drilled into it, etc. I live in a tiny converted chapel - the outer walls are 2ft thick stone but the party wall is 200 mm grey cement bricks. I bought my half in 2003 - I like how it was converted and have not made that many alterations, it is similar to the submitted plans (living area upstairs, sleeping area downstairs because of light issues, etc). The other side was rented out for a few years until someone bought it in 2015 and decided to renovate - it was living hell and I learned that anything that is drilled, hacked, or hammered into the party wall is 'loud' - for instance, you can vaguely hear a drill start-up on the other side... then when it goes into the party wall - holy Moses - like a jet plane taking off. They moved a shower room right next to my living space a couple of years ago. My living space is only 4 meters wide - theirs is only 4 meters wide too. I cannot hear the toilet that is against the party wall but the pipes and taps to the sink are far louder than my taps - it is annoying as hell. The thing is the people next-door are not prepared to compromise by moving the pipes, etc - that would be way too helpful. Does anybody know anything about party walls that amplify like this and how to get rid of this problem from my side?
You could ask if it's possible to insulate and clip the pipework.
Insulation of pipework is something we all should be thinking of this winter so you may get them thinking for their own benefit.