Genz-Ryan did all HVAC work on our home in 2011. H...

Genz-Ryan did all HVAC work on our home in 2011. Have had furnace and AC issues. Last year we had a leak in AC coil. G-R technician recommended sealant and dye, stating that this resolved the issue 90% of the time. Predictably, coil failed again this summer. Have talked to four other HVAC companies, all said coil should have been replaced because of their high failure rate. Complete waste of $800+. Of course, no warranty on work and only two year warranty on new equipment. Very profitable business model, but unfortunately poor customer service in our experience.