Ongaro & Sons

About Ongaro & Sons

Family-owned since 1932, Ongaro & Sons is Northern California's trusted whole-home energy partner serving Marin, Sonoma, and Napa Counties. Now in our 4th generation of family ownership, we provide comprehensive HVAC, plumbing, electrical, and solar services for residential and commercial clients. Our NATE-certified technicians undergo continuous training through PHCC and manufacturer programs. We maintain elite certifications including Mitsubishi Electric Diamond Elite Contractor (top 3% nationally) and Trane Comfort Specialist designation. As a founding member of PHCC Redwood Empire Chapter since 1948, we've contributed extensively to industry education and training throughout Northern California. We offer flat-rate upfront pricing with no hidden fees and back every project with a 100% satisfaction guarantee.

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