They are quick and efficient and the price is no more than doing your own installation and theirs is a lot better. They came in and a few hours later it was done.The owner/supervisor is on site all the time and he and his workers are very polite. They are very honest people as my husband had over estimated the size of the roof and they reduced the price accordingly. One could instantly feel the difference in temperature just by touching the ceiling. They cleaned up afterwards although there was very little mess. I would highly recommend them.