Excellent service. They are quick to schedule. John, the owner, is very knowledgeable and made sure I was informed of everything he was doing. I initially called to get a smart thermostat installed and he ended up helping me with so much more, including getting the humidifier we had in our house from previous owners up and running, and getting me some of our specialized air filters. I ended up having him come back to install an air purifier. A+ - will use again and highly recommend.