I am a customer for "life." My heating and air (18 years old) needed replacement along with a cold air duct installed in the finished basement wall. I am extremely detailed (OCD) about all home improvements. I consulted Great Lakes Heating and AC and received very competitive pricing from (sales representative/Bruce) with excellent communication and follow-up during and after the sale. The two techs (Nathan and Sam) performed all install services in an excellent manner and demonstrated the excellence of the Great Lakes Heating and AC brand. Their attention to all details, careful and detailed explanations of the install processes, time of arrival, clean up after the job (daily), represent the excellence of customer services. I am forever appreciative and grateful for a job well done and will be a dedicated customer for "life." Thank you, thank you, thank you! I urge all, PLEASE use their services for all of your heating and AC needs....you will not be disappointed!