Ontario Heating & Air Conditioning

Ontario Heating & Air Conditioning is a reliable Air conditioning contractor, Heating contractor, and HVAC contractor serving Ontario, CA, handling AC repair, furnace service, heat pumps, and indoor air quality. For fast results, call to confirm same-day or emergency availability and ask for an upfront, itemized estimate before work begins. If you’re replacing equipment, request a proper load calculation and quotes for high-efficiency (SEER2) systems, and ask about financing options and utility rebates to reduce total cost. To prevent breakdowns, schedule seasonal maintenance and have them inspect ductwork and thermostat settings so your system runs efficiently year-round.