AS Heating and Cooling - Saint Charles's Best HVAC Services

Yes, evaporator coil freeze-ups are a frequent issue for Saint Charles homeowners, often caused by low refrigerant, dirty air filters, or airflow problems. Our technicians are experts in diagnosing the root cause—whether it's a refrigerant leak, a faulty blower motor, or another issue—and performing the necessary repair. We'll safely thaw the system, fix the problem, and ensure your AC runs efficiently to prevent future freeze-ups.

It's a common question. If your older system has a refrigerant leak, especially if it uses R-22 (Freon), repairs can become costly and repetitive due to the phased-out refrigerant. Our team will perform a thorough evaluation, considering the age of your system, repair history, and efficiency. We'll provide a clear, honest recommendation. For many Saint Charles homes, upgrading to a modern, energy-efficient system with a new warranty often proves more cost-effective and reliable in the long run.

Our professional installation process is designed for long-term reliability. It starts with a proper load calculation for your Saint Charles home to ensure correct sizing. We then follow meticulous, manufacturer-recommended procedures for installing the new system, including a pressure test to confirm there are no refrigerant leaks, precise airflow balancing, and thorough system testing. This careful approach maximizes efficiency, prevents common operational issues, and ensures your new system performs optimally for years to come.