First Call Heating and Air is a trusted HVAC company serving Patterson, CA, and surrounding areas including Modesto, Turlock, Tracy, and Stanislaus County. We specialize in residential and light commercial heating and cooling solutions, including AC installation, repair, and maintenance, furnace installation and repair, ductless heating and air systems, and thermostat services. Our team delivers reliable same-day service, ensuring comfort and efficiency year-round. Whether you need a new HVAC system, central air upgrades, or routine maintenance, we provide professional, affordable solutions tailored to your needs. Your comfort is our first call.