I recently completed a comprehensive heating and air conditioning repair service for a client. The initial assessment revealed issues with both the heating and cooling systems. I meticulously diagnosed the problems, identifying a faulty thermostat and a refrigerant leak. After replacing the thermostat, I recharged the refrigerant to ensure optimal performance. Additionally, I performed a thorough cleaning of the air ducts and filters to enhance indoor air quality. The client was extremely satisfied with the restored comfort and efficiency of their systems.