The installers arrived on time and did there best to minimize mess and keep as much heat in the house as possible during the install (the install was during winter.) While preparing the attic the installers noticed that at some point in the past that an animal had been nesting in the attic however but that it had apparently been cleaned up/kept out properly so I shouldn't worry to much. Once complete they asked if I would like to inspect the work and assisted me in getting up the ladder to view the work. They then removed there equipment and cleaned up all of the loose insulation that happened to be around. The estimate was exactly on target as was the number of bales they expected to use.