Keystone Heating and Cooling | Trusted HVAC Repair in Tucson, AZ

Proper sizing is critical in our desert climate. An oversized system cycles on and off too frequently, wasting energy and failing to dehumidify properly, while an undersized system can't keep up. Our installation process includes a detailed load calculation that considers your home's square footage, insulation, window placement, and other factors specific to Tucson's extreme temperatures to recommend a system that provides efficient and effective comfort.

Our summer special is a comprehensive 30-point inspection designed to catch small issues before they become costly repairs. It includes checking refrigerant levels, cleaning condenser coils, inspecting electrical connections, testing the thermostat, examining the air handler and blower motor, and ensuring all safety controls are functioning. This proactive check-up helps your system run more efficiently during the hottest months, potentially lowering your energy bills.

Absolutely. Air handler fan problems are common, especially as systems age and work harder in our heat. We diagnose issues like a faulty capacitor, a worn-out motor, or airflow obstructions. With over 20 years of experience, we can efficiently repair or replace the necessary components. We also offer after-hours and weekend service for these urgent repairs to restore your cooling as quickly as possible.