My house had no insulation in the walls so I hired this company to insulate my rental suit because of noise. We can still hear everything, it made no difference at all. We also had to open up the wall to add a door and noticed that they hadn't filled up the wall with insulation, there was big gaps in the wall with the insulation sitting on the bottom and the rest of space was empty. Life has been so difficult for us because we always have to be careful to be quiet and make sure tv and music is at a low volume. When we have tenants with kids that make a lot of noise we can't sleep at night because of all the noise. I feel ripped off and regret hiring this company everyday and now there is nothing I can do to fix it.