"Phil L" wrote in message
...
BartC wrote:
What's astonishing is that the sound gets through 18" of breeze-block
wall, with or without a cavity. In fact in the loft I can hear next
door better than downstairs in my own house!

It would be astonishing if true, unfortunately it isn't, your party wall
is probably 4 inches, possibly 9 or 11, but there's not a cat in hells
chance it's 18.

Have a look at a Smith's house that has been fixed.. block-cavity-original
wall-cavity-block and its probably dry lined too.