Ongaro & Sons, trusted since 1932, delivers expert heating, cooling, plumbing, electrical, and solar services in Northern California, proudly serving Sonoma County, Marin County, and Napa County. Our licensed technicians specialize in HVAC repair and installation (air conditioning, furnaces, heat pumps, ductless systems), water heater replacement, drain cleaning, sewer services, electrical panel upgrades, whole home generators, EV charging stations, and... Read More about Ongaro & Sons