A-Z Radon did an overall exceptional job of installing the mitigation system in my home. The installers arrived on time and explained each step of the process and took the time to answer all of my questions. When they finished they went over the system parts as well as how to read the visual alarm to know if the system stops working. The best part was the bill was exactly what I was quoted! No upsell and no surprises ! Overall I was very impressed with A-Z and would definitely recommend them to anyone who needs radon testing and mitigation!