Andrey was professional, polite and friendly, knowledgeable and very patient and kind. He explained the repair being made, showed me the damaged part that he would replace and clarified the cost of the service when I questioned it. I liked that he appeared to enjoy his work and gained my confidence quickly. I would happily have Andrey do work for us again. Carolina Heating Service is lucky to have technicians like Andrey. Thank you, Andrey!