I live in a semi detached house that I own and the soundproofing is aweful, I can hear cough, sneezes, a tap being turned on etc. My living room wall is connected directly to theirs if you get what I mean by a party wall.
I was thinking of paying for soundproofing like - Soundproofing Store-Professional Soundproofing Solutions.
Has anyone ever fitted soundproofing in any way and does it actually work or is it useless?