I probably need a complete new HVAC system. I have an "appointment to talk to the Job manager" my checking account is shuddering in its' cover. Our repairman said he had no idea of the cost involved? I asked him twice to give me his best guess? Please, really... he has no idea? Do I trust these people to do a good job? If their technical work is as good as their salesmanship...I should be GOLD!!!