Best ERV Installation in Saint Paul MN

I had used Apollo in the past to install furnace and a/c unit and have had them do routine maintenance and they were great, but I don't know what has happened to their customer service from then until now. Wanted them to reroute some duct work for me and it took nearly a month before I could get them scheduled, but during this time nobody would communicate with me. I had to initiate all phone calls and keep asking for a return calls and never got any. I finally got an estimate a week later after two calls I placed that went unreturned I got a three word text telling what day they would be out but no time. I called the morning they were supposed to come and was told they were not coming and had to reschedule and I think if I hadn't called I would still be waiting for them to show up. I understand they are busy especially during this cold snap, but all I wanted was some communication from them and I would have been ok. They have lost a good customer who had referred them to a lot of family and friends but now they have lost my trust and business.Update: I never received a call today about my concerns as they responded they were going to do. So to my point, the communication does not exist with them. How do you expect to get good reviews if you don't even acknowledge the issue or take care of your existing customers!