I was at work,so I left my wife in charge of picking the PRO to do the Job. Of the one's that came Spink Insulation's rep. took the time and explained everything to her so thoroghly that she was really impressed with what had to be done at a very reasonably cost.  P.S. they garanteed their work. (note: we had the attic insulated so the garantee was that if the insulation settled below 12 inches, they would reaply more to maintain the 12 inches) for life.