The latest addition to our house is insulation. The insulation in the ceiling isn't finished yet, but the walls are done. We upgraded to blown in insulation for the exterior walls. For the interior walls, we weren't expecting any additional insulation, but our builder did install insulation all along the wall between the master suite and the rest of the house and around the other bathrooms and the laundry room. So, that was a nice surprise. This should go a long way to dampen sound in the house. We also have insulated the garage as well with standard insulation on the walls that don't touch heated / cooled living spaces.