Their customer service is excellent. We've had major work done - ducting for an addition, a furnace replacement, an air conditioner installation. They were patient and professional in all phases. The communication with the customer from the front office is great (which I can't say for all contractors) and their installation crew are attentive and worked with me to solve my concerns about things like duct and pipe placement. I even got an in-person tutorial on the new thermostat from the service manager, rather than being handed the manual with a breezy "good luck."