Best A/C System Dismantlement in Oakland CA

I am formally a Facilities Director and used them many times. However, I called them and had them unclog a kitchen sink in my home. Once they arrived, the plumber didn’t have a basic part needed in his truck and left to get it. After he was done snaking my drain, he informed me I owed over $900. I was stunned but paid the bill with a credit card. I was told I’d receive a bill by email but that never happened. BEWARE!!!! Don’t think about using them unless you get a quote up front. I still feel burned by them to this day.