Ongaro & Sons

★★★★☆ 4.1 / 5 (430)
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: San Anselmo, CA 94960
: (707) 579-3511
: https://www.ongaroandsons.com

Company Overview

What contributes to the high satisfaction rate of Ongaro & Sons? The solution is straightforward: we provide the finest service and great value in plumbing. Every job we do comes with a complete guarantee. Since 1932, our family name has been on our trucks, uniforms, and buildings. Currently, our third and fourth generation family members and valued team members continue our tradition of delivering quality work and exceptional service.

Our team benefits from our dedication to their continuous education, including certifications in Plumbing, Heating, and A/C. We are meticulous in protecting your property during all stages of our service. We comply with applicable codes, manufacturer instructions, and industry standards in all our projects. Our parts and labor warranties go beyond typical industry standards.

Founded in 1932 by Ernest V. Ongaro, we have proudly served our community ever since (that’s two years before the Golden Gate Bridge was completed!). Our mission is to deliver the highest level of service and value in the plumbing industry. Today, our third generation family members are dedicated to continuing the family legacy of quality workmanship and exceptional service.

Our dedication to employee training and growth is unwavering. We take special care to protect our customers' property during every installation phase. We strictly adhere to relevant codes, manufacturer guidelines, and industry standards in all our installations. Our parts and labor warranties surpass standard industry offerings.

Alongside our full heating and air conditioning services, we provide plumbing, drain cleaning, and leak detection.

Hi there, I’m Ernest Ongaro. Alongside my cousin Donald, I co-own Ongaro & Sons plumbing, heating, cooling, and electrical. We are a family business that was established in 1932 by our grandfather. It has been a vital part of our lives. Just as our parents did, we spent our childhood in the shop, understanding the value of hard work and delivering the best to our customers. Whether you need maintenance, repairs, or system upgrades, remember Ongaro & Sons; we are always here for you.

Business Services

  • Bathtub installation
  • Bathtub repair
  • Building energy audit
  • Circuit breaker installation
  • Circuit breaker repair
  • Doorbell installation
  • Doorbell repair
  • Drain installation
  • Drain repair
  • Electric inspection
  • Electric installation or replacement
  • Electric panel installation
  • Electric panel repair
  • Electric repair
  • Wire installation
  • Wire repair
  • Electric vehicle charging station installation
  • Electric vehicle charging station repair
  • Faucet installation
  • Faucet repair
  • Garbage disposal installation
  • Garbage disposal repair
  • Gas line installation
  • Gas line repair
  • Generator installation
  • Generator repair
  • HVAC installation or replacement
  • HVAC system repair
  • HVAC system maintenance
  • Light fixture installation
  • Light fixture repair
  • Outdoor lighting installation
  • Outlet installation
  • Outlet repair
  • Plumbing installation or replacement
  • Plumbing repair
  • Sewer installation
  • Sewer repair
  • Shower installation
  • Shower repair
  • Sink installation
  • Sink repair
  • Switch installation
  • Switch repair
  • Toilet installation
  • Toilet repair
  • Water heater installation
  • Water heater repair
  • Water pipe installation
  • Water pipe repair

Business Location & Hours



Mon:7:30 AM - 5:00 PM
Tue:7:30 AM - 5:00 PM
Wed:7:30 AM - 5:00 PM
Thu:7:30 AM - 5:00 PM
Fri:7:30 AM - 5:00 PM
Sat:7:30 AM - 2:00 PM
Sun:Closed

Recommended Customer Reviews

Jean H.
★★★★★

The Ongario team replaced all of the plumbing under the house. A very big job indeed. They were careful, efficient, thoughtful, punctual. They made it possible for us to have water in the house after the day's work was done. They cleaned up the work areas every day. The job took 3 days. I was nervous about how they would make the repairs, but they carefully explained the method. I am grateful for the time they took to explain the process. They inspected and measured the lay out before the job started. They made the calculations and carried through systematically. The office team was responsive to any questions I had. Thank you Ongaro team!! Jean

Lady S.
★☆☆☆☆

What should have been at most a couple thousand to fix a few issues (and I'm being generous here) turned into a quote of in excess of $50k after an ""inspection"". Don't go for the inspection option; you'll be presented with a bunch of photographs intended to frighten you into committing tens of thousands to a plumbing overhaul. But it's okay, they can help you finance! Can't speak to the quality of work on offer since it been years since I've used this company, and of course after this experience I certainly don't feel confident in using them now. My advice is to keep the scope of your job precise and defined.

Steve L.
★★★★★

Our technician, Chris Ostrom Juvencio was great. He provided the exact service we were looking for in doing a maintenance check on our 20 year old furnace and installing a new thermostat that had gone out. He was quick and efficient and explained things clearly. Steve L.

Natalee S.
★★★★★

I have lived in my home for 7 years. Throughout that time, I have consulted several HVAC contractors for advice and recommendations for maintaining a more consistent temperature throughout our home. Last week, I reached out to Ongaro and Sons and a contractor (Brandon) was at my house first thing the next morning. Brandon went above and beyond to help me understand the flow rates and how to control the dampers. In addition, he was able to provide 2-3 options for making our house warmer and more consistent. Brandon was amazing and he educated me HVAC 101. He was an absolute pleasure and you have wonderful people representing your brand. We are planning to have O&S perform all of our upgrades and we will continue to use them if their service continues to be this impressive.

Vivien W.
★★★★★

Ongaro service tech Chris Ostrom Juvencio just came to check a problem with my heating. He was able to find the solution straight away and set the thermostat as I requested. Ongaro are always very responsive and I would recommend calling for Chris when there is a need.

N. R.
★★★★☆

I've used Ongaro for electric work and also to get a proposal on HVAC duct cleaning. They are very professional, however, they are extremely expensive.

David S.
★★★★★

Last year Ongaro & Sons replaced a really old furnace in our home. They did a great job given the limited space they had to work in. There was only one problem...when the heat went on it was loud to the point we had to turn our TV up to hear over the noise. Our neighbors had their furnace replaced a few months after we did ours, and they raved about how quiet theirs was. We checked theirs out and it was a lot quieter than ours. Another company had installed it and had used a different brand than what we had. We actually considered replacing ours, but contacted Ongaro to see if anything could be done. We were fortunate to be able to book an appointment with a tech within a matter of days. My wife wasn't available when the tech, Chris Ostrum, came to the house to check things out. Chris realized we had a variable speed fan and was able to adjust the speed down so the noise level was much reduced. I told Chris that my wife wouold have to be the final judge of his success. Chris provided me with a few options of what could be done if the lower sound level didn't pass my wife's criteria. My wife was pleased. We're happy with the service that Chris and Ongaro provided. And we're happy that with a simple adjustment Chris was able to save us many thousands of dollars in replacement costs.

Sahri N.
★☆☆☆☆

GET A SECOND BID!!!

This company used to be a family company, but the 3rd generation owner is destroying it.

They have excellent technicians and provide a high level of service. But they are charging 2-3 times their competition. They train their employees in shady sales tactics and will rip you off with a smile. Emotional manipulation is common with their sales people. Do you want a tradesman or a salesman?

Buyer beware.

Its a shame, this company used to be legit.

Sharon H.
★★★★★

Just a quick shout out to say Daniel Chan is amazing. Professional, thoughtful, respectful and such a pleasure to have in your home. Thank you Ongaro and Sons!

Bruce C.
★★★★★

Chris Ostrom Juvencio came to my home and fixed a heating problem we have had for the last month. He was friendly, capable, and fixed the heater
in a very short timeframe, as we were expecting guests to be staying with us.
It is nice to know that true craftsmen like Chris are still around.
Bruce Crrington

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