Initial estimate was done by drive by only , which may work for some people but not if you need to have a conversation about anything serious . You'll need to know this if you decide to use them .The day the came to blow insulation I asked for a pre-inspect of the attic (and report back to me )as I just bought the home and needed to remove some extra batt's up there and some exhaust piping . THEY DID NOT and proceeded to finish up before I knew it . They buried EVERYTHING up there in blown insulation including 2 vents from bathrooms that are now plugged and quite troublesome . The home was built in 1973 , at that time is was common practice not to vent these into the roofing but in the attic only . When I tried to call the team after in the truck as they were leaving they shrugged me off and became a little mean and ignorant . I called the office who then proceeded to push me toward their offsite guy , who then was a litte indifferent as well , then he called the office back ...etc... etc.... this went back and forth for a while . I wanted them to come back and remove the items and unplug the vents and instead getting roadblocks .Now they claim they won't be back until after the Holidays . I get the feeling they are gone for good . I will update this if I get something positive from them. At this point I will need to hire another crew to go up there and address those concerns . Looks like this will cost me much much more now. The blown insulation quality and amount were very good . The crew not so much .