Net Zero did a fabulous job installing AC. They arrived early every day and waited until the expected start time. Drilling holes in the wall for vents normally creates such a mess, but when they left for the day , you couldn’t even tell they were there. We had some issues with our thermostat (because Nest doesn’t support dual fuel ), and Brian did a terrific job getting everything working. Our home now has AC, a heat pump, and a new thermostat.