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  • Ongaro & Sons
    Ongaro & Sons
    (415) 454-7400
    11 Ross Avenue, 94960  San Anselmo

    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 p…