My tech today, Yang, was so helpful. Our nest thermostat was wired incorrectly and he solved the problem quickly, showing confident expertise. He was courteous and took the extra steps to show respect to our home, like wearing shoe booties, handling the thermostat with care, setting his tool bag down gently, etc.. This is our second time dealing with PDS Plumbing and Air and both times the techs have been professional, patient, and kind. I highly recommend PDS!