I am a Universal Escco Certified Person, I do not have a business license jet. But I am working on that. I Can go to you house and give you an estimate for the repairs of you A/C, My estimate will only cost you from $30 to $50, Depending on how far are you from the city of Lathrop CA. Also my estimate charges will cover the repairs if is something simple for me that it will not take much work from me. Call for an appointment.