Pretty sorry company, if you ask me. They charge hourly, but took multiple smoke breaks while on the job although we did get them to knock some money off the bill after alerting management about it. They also do not stand by their work so if something breaks shortly after, you'll be paying dearly to have it fixed. We had a simple problem less than a year after installation and instead of coming out and fixing it, they claimed it was a product malfunction, which was totally bogus. The repair person was very confrontational and made me feel very uncomfortable. I would not recommend these guys to my worst enemy.