Make sure you start the summer cool thanks to thorough AC maintenance in Fontana, CA. At 4 Points A/C & Heating, we believe that preparing your system for our months of 90-plus degree weather beats calling for urgent service. Our expert air conditioner maintenance technicians work hard to make sure your system is in great shape. We aim for both high efficiency and reliability, providing services such as coil cleaning, motor and airflow testing, and refrigerant and compressor checks. Whether you have a new variable speed system or an older model that’s served you well for many years, we’ll take good care of it in Fontana.