Hi all, I’m hoping someone can please advise on the best practise for soundproofing a ceiling. My property is currently in a house conversion, my flat is a 2bed ground floor with 2 1bed flats above (different owners). I am currently splitting my flat into 2 seperate flats, I have now finishing off the second flat but seeing as I will be officially registering the flats as seperate units I need to ensure the properties pass all sound test regulations. My builder is in the process of removing the old ceiling and I need to obviously newly insulate and sound proof it and I wanted to get some advice on how best to do this. Prior to removing the ceiling the noise from the above flat was really bad, they have a carpet but it looks like there was no real sound proofing or insultation added when it was originally converted. I hope the picture helps. Many thanks in advance!!!