As far as the crawlspace, I would be more concerned about having a proper vapor barrier so having them blow in more insulation is not addressing that issue.
Oversized breakers are a hazard. Should have a licensed electrician do the work and you should get a copy of the work order. Work is done by a professional and you have someone to call later to warrant their work.
Thanks for your reply. They want to blow insulation in the attic, and I am fine with that. They do not want to do anything with the insulation in the crawlspace, so I am thinking about just asking them to remove it. Some of the crawlspace insulation is falling down, and it needs to be removed before it gets wet and causes problems.
Right?