I have been a customer of AA Service for almost 40 years because they take care of their customers like family. Sergiy Dokus came out fir my scheduled fall furnace check. He was very patient answering my questions and demonstated, by his friendly and professional demeanor and his efforts for keeping the work area clean, that he really values and respects the customer. I’ll be requesting Sergiy for my future furnace and AC service needs! Thank you Sergiy! That is the kind of service that AA Service provides. They have taken care of us for 40 years and Sergiy’s excellent service proved again why they are the absolute best choice on the North Shore!