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Ongaro & Sons

HVAC Companies in San Rafael, California
Ranked #4 in San Rafael | Grade B
4.90 (762 reviews)

Ongaro & Sons

Ongaro & Sons focuses on HVAC system care—from seasonal tune-ups to duct replacement and full change-outs—delivering explanations and photos so homeowners can make informed decisions Serving homeowners across San Rafael, California.

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Why Homeowners Choose This Business

Appointments are handled with clear communication from start to finish. Technicians explain findings, share photos when helpful, and outline next steps without pressure. Work areas are treated respectfully, and projects are completed with a focus on even airflow and long-term reliability Local experience that helps homeowners across San Rafael, California compare a more region-aware provider.

Service Area

Serving San Rafael, California, nearby Marin County communities, and the North Bay region.

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Listing details

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  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Has more review volume than many local competitors.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Electrical Services
  Plumbing Services
  Renovation Services
  Hvac Maintenance
  Furnace Repair
  Air Conditioning Repair
  Maintenance
  Duct replacement
  Installations
  Heat Pump Installation
  Repairs
  Indoor Air Quality
  Thermostat Replacement
  Airflow Balancing
  HVAC Diagnostics
  System replacement
  Filter service
  Duct Sealing

Heating and cooling maintenance, diagnostics and repair, duct repair and replacement, system replacement and upgrades, indoor air quality checks, and filter guidance.

Reviews

Customer Reviews

Francesco Deparis
Brandon H was my HVAC Service Technician for a recent annual maintenance. The service here is fantastic. He explained everything he did (pics of literally everything). He showed me the repairs he did, explained why he did it, and gave me…
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Brandon H was my HVAC Service Technician for a recent annual maintenance. The service here is fantastic. He explained everything he did (pics of literally everything). He showed me the repairs he did, explained why he did it, and gave me terrific tips on my filter replacement schedule that I was not aware of.

Give this man a raise and take care of him. Employees like this are what makes the difference in a service company.
roberta teller
Excellent service...Dominic and Ethan were professional, helpful and respectful to us and our home. They did a great job removing old decrepit ducts and installing new ones. Now we have an even flow of heat throughout our house. Thank yo…
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Excellent service...Dominic and Ethan were professional, helpful and respectful to us and our home. They did a great job removing old decrepit ducts and installing new ones. Now we have an even flow of heat throughout our house. Thank you....
William Ramsey
I was thoroughly impressed with the service tech's knowledge, professionalism and communication skills. He did a great job and explained thoroughly the condition of my HVAC unit and what might be emerging future issues. If all your techs ar…
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I was thoroughly impressed with the service tech's knowledge, professionalism and communication skills. He did a great job and explained thoroughly the condition of my HVAC unit and what might be emerging future issues. If all your techs are similarly skilled, it explains how Ongaro & Sons has become so successful and respected. Your firm will be my go-to for future HVAC needs. Oh yes, and the $79 was a helluva deal. Felt like I received service worth much more! Thank you.
Lauren
Ongaro & Sons electrician, Roger Hunter, has earned my highest recommendation. He is masterful: skilled and effective problem solver, reliable, efficient and excellent communicator. Sweet natured. I am so relieved and happy to have found…
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Ongaro & Sons electrician, Roger Hunter, has earned my highest recommendation. He is masterful: skilled and effective problem solver, reliable, efficient and excellent communicator. Sweet natured. I am so relieved and happy to have found him. He readily agreed to add us to his schedule when the plumber Ongaro originally assigned dropped out at the last minute. Roger pulled off a miracle the day before Christmas, when I expected 35 for dinner.
L Witter
Hours after moving into our home and we experienced backup in our toilets and showers! With overflow in our clean out valve on the side of our house!! Upon calling we were connected to a friendly and helpful team member who was able to sche…
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Hours after moving into our home and we experienced backup in our toilets and showers! With overflow in our clean out valve on the side of our house!! Upon calling we were connected to a friendly and helpful team member who was able to schedule Nico to arrive at our home shortly after. Nico was equally friendly and helpful. Very personable and empathetic too! We’re so grateful to the team for getting us back in working order. Further repair to come with more specialized cameras so we can make a more permanent repair. We are beyond thankful for the service we received, making us feel fortunate in an unfortunate situation.

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Frequently Asked Questions

The team provides maintenance, troubleshooting and repairs, duct repair and replacement, and full HVAC system replacements. They also help with airflow balancing and filter schedules to keep systems running reliably.

A technician arrives within the scheduled window, inspects the system, and discusses findings on-site. They explain options, answer questions, and provide a clear path for next steps before any larger work proceeds.

Yes. Technicians assess duct condition, airflow, and equipment performance to identify causes of uneven temperatures. They can recommend duct repairs or adjustments to improve comfort throughout the home.

Yes. Maintenance includes a system check, cleaning where applicable, and a review of filter needs and potential future issues. The goal is to prevent breakdowns and keep efficiency steady.

Clear access to indoor and outdoor equipment and note any recent issues or noises. Having past filter sizes and replacement dates available can help the technician tailor recommendations.
 Verified Listing

Opening Hours

  • Monday Open 24 hours
  • Tuesday Open 24 hours
  • Wednesday Open 24 hours
  • Thursday Open 24 hours
  • Friday Open 24 hours
  • Saturday Open 24 hours
  • Sunday Open 24 hours

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Business Details

Business Rating
4.90 (762 reviews) Featured BusinessPro Listing
Address
11 Ross Ave, San Anselmo, CA 94960
Business Type
HVAC Contractor
Website
https://ongaroandsons.com/
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