Total cost out of pocket hired out: $7k (we have 2 attics). We got $2k cash rebate from NJ Clean Energy Program, so $5k all in. We save about $815/year on energy costs so break even is around 6 years. They removed all the old fiberglass, vacuumed everything out and hauled away the debris. Air sealing took a full day, insulation about half a day. Two separate blower door tests (before and after) to show the 20% improved tightness data.