Comfort Air came out twice, first to diagnose and then to repair our whole house heating system. I chose them out of the few companies I got in touch with because their receptionist and scheduler Ida responded swiftly to my initial Yelp email and politely answered all my questions. The owner, Eugene Tovbin, ordered the replacement part and did the repair. It was easy to schedule with them. The price was fair. I will use them again and highly recommend this company.