I fully recommend Darnold & Lyons. Recently our AC unit died after 20 years faithful service. We were referred to Darnold & Lyons by several people in the community. Darnold & Lyons' excellent reputation is well earned. The service techs were professional and respectful. They were prompt and showed up when they promised. I feel that they listened to our HVAC needs and then independently evaluated our home for their recommendation. I highly recommend Darnold & Lyons.