Ongaro & Sons

★★★★☆ 4.1 / 5 (428)
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: San Anselmo, CA 94960
: (707) 579-3511
: https://www.ongaroandsons.com

Company Overview

Why is the satisfaction rate at Ongaro & Sons so remarkable? It’s quite clear: we deliver top-notch service and value in our field – and we stand behind our work completely. You’ll see our family name on our trucks, shirts, and buildings, and it has been since 1932. At present, our third and fourth generation family members, along with valued team members, uphold our legacy of quality craftsmanship and outstanding service.

We are dedicated to our employees' continuous education and development, including certifications in Plumbing, Heating, and A/C that are nationally recognized. We are meticulous in protecting your property during all stages of our work. We adhere strictly to codes, manufacturer guidelines, and recognized industry standards. We offer parts and labor warranties that go beyond typical industry standards.

Established in 1932 by Ernest V. Ongaro (that’s two years prior to the Golden Gate Bridge’s opening!), we have proudly served our community ever since. Our mission is to provide the highest level of service and value in the industry. Today, third generation family members are diligently working to uphold the family tradition of quality workmanship and exceptional service.

We uphold a strong commitment to the education and growth of our employees. We ensure careful protection of our customers' property during every step of the installation process. We comply with all relevant codes, manufacturer instructions, and industry standards during our installations. We provide parts and labor warranties that exceed industry standards.

Alongside our full heating and air conditioning service department, we provide services for plumbing, drain cleaning, and leak detection. Greetings, friends! I’m Ernest Ongaro. Along with my cousin Donald, I manage Ongaro & Sons plumbing, heating, cooling, and electrical. We are a family-owned business founded in 1932 by our grandfather. This business has always played a crucial role in our lives. Like our parents before us, we grew up in the shop, learning the importance of hard work and providing our customers with the best service. If you require maintenance, repairs, or system updates, think of Ongaro & Sons; we are always ready to assist 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

Rocco C.
★★★★★

Kevin Speaker! is amazing. He came in, assessed the situation and fixed everything.

He went above and beyond by helping with my wine cellar cooler as well. Very professional and sharp. He's one of Ongaro's best.

Thank you!

Craig S.
★★★★★

Called Ongaro because we needed to install an electric hot water heater in our ADU and, separately, install an EV charger on the outside of our house adjacent to our driveway. Ongaro sent Chris Campbell within a day. Chris performed a detailed review of our situation, took a large number of photos and a video, coordinated with the plumbing side of Ongaro, and took the time to answer all of my many questions. Ongaro is lucky to have Chris on their team.

JesPetersen ..
★★★★★

A truly outstanding customer experience. Chris Cambell was a true expert, answered all my questions with care and provided several options with advice. We will be using again and highly recommend!

Alisa K.
★★★★★

A wonderful master! I did my job quickly and efficiently. My water heater didn't work, everything is fine now

Max S.
★★★★★

My water heater kicked. It was beyond its lifespan.
O&S blew me away with their professionalism, timely execution, Knowledge, communication, and general ease to work with.
They answered all my questions about switching from gas to electric and made sure I was informed about the process.
The removal of old and instal of my new water heater only took a few hours and they did it early Monday morning after I scheduled on a Friday!

I'll never work with another plumber, electrician, or HVAC specialist in marin Ever.

Do yourself a favor and stick with the best, Ongaro & Sons!

Mike N.
★★★★★

I had my annual routine maintenance -- system inspection, new filter, seasonal cleaning. Everything checked out. No up-sale, just good advice for keeping the system going and running well. Kevin was great.

Alicia D.
★★★★★

Ongaro and Sons has been a pleasant home service company to work with. Our home recently had a part fail in the AC unit and we needed a repair immediately. After a few phone calls, we decided to have them come out to inspect the issue. Thankfully, Chris V. was able to explain the problem in great detail and answered all of our questions. He had a wealth of knowledge and fixed our unit in a timely manner. Thank you Ongaro and Sons for your amazing service! Our family will definitely be referring your company.

Mike S.
★★★★★

These guys are my new go to company for all my heating and ac needs. After having a nightmare of a time with my home warranty company. Who send out a contractor that did not complete a job and left my daughter and I without heat for the last 6 months and then went out of business. I decided to call Ongaro and Sons based on there reviews. Brandon came out to my house and with in two short visit I'm up and running again and now will have AC for the summer months. They are a great company with great communication and speedy service. Thanks again Brandon for the great work.

Caroline P.
★★★★★

Ongaro's Kevin Speaker provided us great service. He was here for annual maintenance on our AC unit and when I bemoaned that the master bedroom never got as warm or as cold as the rest of the house when furnace or AC was on. He noted that the built-in wood floor registers were constricting the flow but that there was enough airflow. He recommended installing better more open floor registers. Since he installed the new more open registers the temperature has improved in the room.!

Chris K.
★★★★☆

I am upgrading my review because Ongaro has been very responsive to my frustration. I appreciate that they listened and took my frustrations seriously.

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