I had Jasper Contractors come and put a new roof on my house. The supervisor came over with a group of about 8 other people and started work on the house right away. They all worked very hard, including the supervisor, who worked alongside them. They continued working through the day, without taking a break. There was just a short 30 minute lunch break, and they continued working until the job was done. They spent about 12 hours on the job, which I thought was very impressive.