HVAC Repair Tucson AZ | Call Marathon Heating and Cooling

First, check your thermostat settings and circuit breaker. If it's still not working, call us immediately. We prioritize emergency calls during extreme heat to get your cooling restored quickly. Our technicians are experienced in diagnosing and repairing common desert climate failures, from refrigerant leaks to compressor issues, and we carry many common parts on our trucks to facilitate faster repairs.

When we install a new qualifying Rheem HVAC system, the manufacturer's parts are covered by a 10-year warranty. We handle all the registration and paperwork for you. This warranty is in addition to our own five-year guarantee on both the materials we supply and our workmanship, giving you long-term peace of mind for your investment.

The extreme dust and summer heat in Tucson put tremendous strain on HVAC components. Our twice-yearly maintenance service helps prevent costly breakdowns by cleaning critical parts like coils and checking refrigerant levels, electrical connections, and the air handler fan. This proactive care improves efficiency, extends your system's lifespan, and helps maintain consistent cooling when you need it most.