Go-Green did an amazing job with our Mitsubishi split head heat pump system and Sanden hot water heater. Their office folk was professional, warm, and very knowledgeable, answering all our questions with clarity and humor. Workers were also prompt and friendly, always putting on shoe covers and masks when they were inside. The quality of workmanship was excellent. We had a bit of a challenge to patch and paint over some holes that were accidentally drilled, but the owner of Go-Green made sure we were taken care of that. Price was fair and clearly explained, with no surprises. I don't have much else to say except PICK THEM!