For top AC performance and reliability this summer and into the future, make sure to schedule your AC maintenance in San Bernardino, CA. At 4 Points A/C & Heating, our team takes air conditioner maintenance seriously. We send our best technicians to thoroughly inspect, service, and prepare your system. We know it needs to be hardworking, operating reliably when our local high temperatures hit the 90s and hold steady there for months. From filter checks to refrigerant review, motor testing and a thorough cleaning, we keep new AC systems and old hard-working ones in top shape in San Bernardino.