I have half basement crawl space with cement floor under sunken family room. The original paper face installed insulation in the floor rafters (ceiling of crawl space) was falling down. Rather than the paper side being against the bottom of the floor there was air gap. Dan, owner of Dr Energy came over and presented options. A). To foam seal the floor rafters or B). Foam board 4" insulation/composite material with some huge R factor and seal the sill plates making the crawl space a conditioned area. The difference on the options was minimal. They scheduled the work the next week. Two direct employees came with Dan. He got them started and returned near the end of the 7 hr or so job. They did extra sealing around HVAC vents and a few other air gaps (foundation to the garage). The major part of the basement is a finished Rec Room. The difference in retaining the heat downstairs and above is amazing. I went around to make sure additional vents were not open. His crew bagged and removed the old insulation in the crawl space and carried sealed bags out of the house. Quality of the installation looks very good. I had Dan check on dome other challenges like Master Bath over un-heated garage. Due to potential future business he knocked some buck off the final invoice. Initial time to respond and quote = Excellent, professionalism and concern for property = Excellent, Job Quality = Excellent, Price = competitive and get what you pay for. Several other companies did not even respond although contacted via their preferred method.