Sound insulation of bedroom wall

Sound travels through vibrations in timbers such as the floor and ceiling joists so it’s very difficult to eliminate completely but there are products available to limit what you will hear by constructing a new partition slightly away from the party wall, filling the void with an acoustic insulation and using fixings designed to reduce the vibrations where it meets floors and ceilings So you wouldn’t have to create any dust by removing the current party wall substrates It can be expensive in terms of material costs rather than the labour but there’s options to reduce the price depending on what you are looking at spending and also the noise you can live with I hope this helps If you would like a quote then I’d be happy to help