AC Repair Miami. US1 AC Repair and Installation Company is Based in Miami Florida. a leading provider of HVAC (Heating, Ventilation, and Air Conditioning) services in South Florida. With a commitment to quality, reliability, and customer satisfaction, we specialize in residential and commercial HVAC installations, repairs, and maintenance. Our team of highly skilled technicians ensures that every client receives personalized service and the highest standard of care for their air conditioning needs.