Heating & Cooling Services

Our HVAC expertise gives you the best heating, air conditioning and air quality for your home.

Special Offer
Heat Pump Rebate

Up to $1000 in rebates for installing a heat pump cooling and heating system


$1000 Off

Claim this offer

Marin and Sonoma County Heating and Air Conditioning services offered by Ongaro & Sons are extremely comprehensive. We offer repair and installation services for anything that has to do with heating, ventilation, and air conditioning (HVAC). We are Trane Comfort Specialists and specialize in new high-efficiency HVAC systems and indoor air quality. We work on any make or model of HVAC equipment and our trucks are fully stocked with repair parts. Listed below are our HVAC services.

What NATE certified HVAC technicians means to you
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Forced Air Furnace and A/C repair and replacement
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Duct Cleaning, Testing, Repair and Replacement
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Zoning
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Indoor Air Quality
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Our Customers

Customer rating
I had a very inefficient furnace that kept going out intermittently-naturally when it was the coldest this winter. When I called Ongaro and Mike arrived, most times it ‘magically’ worked. Through this he was very understanding and patient. He could test the system trying to duplicate the fault. He explained what he was looking for and why he was doing certain tests. Eventually I ended up replacing the furnace with a quieter, more efficient furnace and thermostat. I love both! Thank you Mike for all your help and patience and to Dean for assisting at the end and walking me thru the thermostat set up. I love being able to adjust it remotely via my phone. My family used Ongaro for many years and I hope to continue the tradition!
Shirley C of San Rafael