These guys did a great job. Lance took care of me like we were old friends. Stayed in contact with me before during and after install. System was professionally installed and looks that way. Our radon level was at 5.1 before the system (4 is the danger level) and now reads below 1.2. I'd recommend them to anyone! No non-sense, straight forward and reasonably priced. Don't waste your time or money with anyone else.