“Impact Heating and Cooling did a great job on the late spring service on our AC system, so we signed up for an annual service plan. This time, Isaac Favila came to do our annual furnace and humidifier service. We are so glad he did! After thoroughly evaluating our furnace and finding no problems, he checked our whole house humidifier and found it was not working. He did a very thorough diagnosis and determined that a solenoid switch that controlled water flow to the humidifier was malfunctioning. I agreed to replace the rather expensive solenoid and voilà, our humidifier is now operating perfectly! Isaac also showed us how to use our high-tech thermostat to control the humidifier automatically. So probably for the first time in the almost six years we've lived in this house, our whole house humidifier is working as intended. Isaac is a very experienced, knowledgable HVAC technician, a great diagnostician, and a really good guy. I strongly recommend Impact, and especially Isaac Favila, for your all your HVAC service!”