About Us

Are there real differences between plumbing, heating and cooling companies? ... YES!

There are plumbing companies. There are heating and cooling companies. There are few who do both – Ongaro & Sons does it all!

Choose Ongaro & Sons Plumbing, Heating & Cooling because:

  • Established in 1932 by Ernest V. Ongaro
  • Family owned and operated – we stand by our work
  • Best level of service and value
  • Latest technology and ongoing employee education
  • High level of repeat customers and referrals throughout Marin & Sonoma counties

Why is Ongaro & Sons’ satisfaction rate so high? Easy: we provide the highest level of service and value in our industry – and our work is always 100% guaranteed. Our family name is on our trucks, our shirts and our office buildings, and has been since 1932. Today, our third and fourth generation family members and valued employees carry on our tradition of providing quality workmanship and exceptional service.

Our employees benefit from our commitment to their ongoing education and development, including nationally recognized Plumbing, Heating and A/C certifications. We are extremely careful to protect your property during all phases of work. We strictly follow codes, manufacturer recommendations and nationally recognized industry standards. We also provide parts and labor warranties that go beyond manufacturer and industry standards.

  • Ongoing certification through North American Technician Excellence (NATE)
  • Certified HVAC technicians and
  • Plumbing Heating Cooling Contractors Association (PHCC) certified Plumbing Technicians.
  • Friendly, responsible Technicians (background checks required)
  • All work is 100% GUARANTEED
  • Flat rate pricing — we charge by the job, not by the hour
  • Reliable, with over 84 years of service to the San Francisco Bay Area
  • Skilled, clean, honest, plumbing and HVAC Technicians