Best Preventive Maintenance Plan in Chicago IL

Keith was professional, courteous, clean, respectful, took time to explain all options and process and thorough. He addressed multiple issues, worked magic and made a very difficult job look easy. The multiple skills possessed by Great Lakes' professional is admirable and commendable. I have high standards and expectations which Keith & Great Lakes met and exceeded. They go the extra mile. The owner himself came and spent the day assisting Keith. I can't say enough good and would recommend them in a second! Honest, reliable, on time, professional, respectful and clean! AWESOME!