Ongaro & Sons

★★★★☆ 4.1 / 5 (430)
Emergency Call


: San Anselmo, CA 94960
: (707) 579-3511
: https://www.ongaroandsons.com

Company Overview

What makes Ongaro & Sons’ satisfaction rate so impressive? It’s quite clear: we provide the finest service and great value in plumbing. We stand behind our work with a 100% guarantee. Since 1932, our family name has represented quality on our trucks, shirts, and in our offices. Today, our third and fourth generation family members, along with dedicated employees, uphold our legacy of quality craftsmanship and outstanding service.

We invest in our employees’ education and development, providing access to nationally recognized certifications in Plumbing, Heating, and A/C. We ensure your property is well-protected during every phase of our work. We comply with applicable codes, manufacturer instructions, and industry standards in all our projects. Our warranties for parts and labor exceed both manufacturer and industry standards.

Established in 1932 by Ernest V. Ongaro, Ongaro & Sons Plumbing, Heating, Cooling, and Electrical has been serving our community since (that’s two years prior to the Golden Gate Bridge’s opening!). We aim to provide unparalleled service and value in our field. Today, our family’s third generation is committed to maintaining our legacy of quality work and outstanding service.

We remain committed to the education and development of our employees. We take special care to protect our customers' property during every installation phase. We comply with all relevant codes, manufacturer instructions, and industry standards during our installations. Our warranties for parts and labor exceed industry standards.

In addition to our comprehensive heating and air conditioning services, we also offer plumbing, drain cleaning, and leak detection.

Hi there, I’m Ernest Ongaro. Together with my cousin Donald, we run Ongaro & Sons plumbing, heating, cooling, and electrical. Our family business was founded in 1932 by our grandfather. It has been a vital part of our lives. Following in our parents' footsteps, we grew up around the shop, learning the significance of hard work and ensuring our customers receive the best. For maintenance, repairs, or system updates, keep Ongaro & Sons in mind; we’re here for you whenever you need us.

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

Theresa A.
★★★★★

We called Ongaro & Sons during a heat wave in the North Bay when our AC wouldn't turn on. The scheduler Madeline was very kind and helpful with arranging a same day appointment to have our unit serviced. Joshua was our technician and was very knowledgeable and fixed the problem in no time at all. We will definitely use their services again and can't thank them enough!

Tim H.
★★★★★

Ongaro recenting replaced my home furnace. First Chris came to our home and gave me a proposal for two different furnace options and explained the differences. The proposals were throrough and clear and he answered all questions I had. Next the crew came out to do the work. They worked efficently and cleanly the the project was done without any problems. They explained the operation of the new furnance and helped me set up the new digital thermostat and connect it to the web.

Kathryn e.
★★★★★

Chris, our tech, was new to us. He was great! Young, efficient, patient and thorough. Didn't try to sell us a bunch of stuff we don't need. He fixed our heater issue with ease. Am keeping his card and number for future use.

Alan N.
★★★★★

Ongaro installed a heat pump heating/AC system in our house. It was a fairly massive job, including the addition of a duct and vent for our sunny living room to ensure it would be sufficiently cooled during heat waves, the splitting of some ducts to allow for two zones in our house, and the installation of a ""redlink zone board"" hookup so we can manage the two thermostats from anywhere in or away from our home using an app on our phones. All the people we worked with -- the electricians, the administrative staff, the heat/AC workers, the project manager -- were knowledgeable, friendly, helpful and courteous. We would gladly use them again for any type of jobs they handle.

Matt K.
★★★★★

I highly recommend Ongaro and Sons. After speaking with several plumbing companies about replacing a failed section of my home's sewer system, Ongaro and Sons offered the best pricing and delivered outstanding service. Special thanks to Aldo and Amado for making the entire project seamless!

Kate D.
★★★★★

The technicians were on time for both visits. They inspected my ductwork under the house to ensure it was all intact. Thoroughly explained the process of cleaning my ductwork complete with before and after pictures. Polite and respectful.

Arnette D.
★★★★★

Today Kent came out and installed a new garbage disposal. He was on time, friendly, efficient and kind to our cute pug. He kept the area clean and tested the install twice to make sure there were no leaks under the sink. Kent is obviously an experienced plumber and an asset to Ongaro. For the last many years, Ongaro is the only company we choose for plumbing, heating, air conditioning because their technicians are so competent and knowledgable. Couldn't be more pleased with this service and this company.

Steven C.
★☆☆☆☆

So very overpriced, so misleading. Received a bid of 8300.00 for
plumbing, had another local do the same work for 760.00. also
sold me some equipment I didn't need, when installing my ac
during covid. Run these people are rip offs.

James C.
★★★★★

We've used Ongaro and Sons for our home HVAC needs in Novato and really like them. Today we had Dustin come by to give us a free estimate for battery storage. We really appreciate the time he took to help us understand our power consumption, as well as his straightforward cost-benefit analysis for installing the new equipment. Thank you Dustin for your time and your honest appraisal of our situation!

Mary G.
★★★★★

Last winter our furnace gave out, and Ongaro and Sons came out promptly and fixed it. While recommending we replace our 30 year old furnace, there was no pressure, and they happily got it up and working again. This summer, as the heatwave started, our air conditioning unit also gave out. We had a few estimates to repair it, including Ongaro. As we discussed what to do, we thought of the Ongaro rep reminding us of the recent furnace repair, and the age of our HVAC system. Never any pressure, just information. We decided to replace the entire system, furnace, air, and ducts. Also, because of the change of codes since the house was built, everything had to be moved to the other side of the house.
Ongaro walked us through the entire process, including financing. They also brought us portable a/c units as the temperatures were still soaring.
Every person we dealt with was professional, polite, and kind. It was not inexpensive, by any means, but it was worth it. The techs who did the installation even carried in my groceries for me!
I highly recommend Ongaro and Sons.

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