I recently purchased a three storey victorian row house in Toronto. I wasn't in long before I realized that I have a significant issue with sound travelling between my home and the adjoining home. Apparently, when my home was gut renoed in 1989, the common wall on my side was torn down and replaced with strapping and drywall, i.e. apart from the strapping, my unit and my neighbor's unit are drywall to drywall with a small empty cavity in between.
I contacted an insulation company that is proposing that I blow cellulose insulation inside the common wall to reduce the tranference of sound. I'm told that the sound tranference should be reduced about 50%, although there will be very little difference when it comes to low bass.
I'm wondering if anyone has tried blowing in cullose insulation and what their experience has been. Are there issues I should be aware of? Are there other, better solutions?