Heating & Cooling Services

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

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Marin and Sonoma County Heating and Air Conditioning services offered by Ongaro & Sons are extremely comprehensive heating and cooling services compared to other heating and cooling companies. We offer heating and cooling repair and installation services for anything that has to do with heating systems, ventilation, and air conditioning (HVAC). This includes mini split systems, heat pumps, duct cleaning, heating repair service, cooling system repair, air conditioning service and HVAC system cleaning and tune ups. We are Trane Comfort Specialists and specialize in new high-efficiency reliable HVAC systems and indoor air quality. As HVAC experts and a heating and air conditioning repair company, we work on any make or model of HVAC equipment and our trucks are fully stocked with repair parts for any heating and cooling service for any HVAC system, air conditioning system, and ventilation system. Listed below are our HVAC services.

Heat Pump and Mini-Split Specialists, Electrification Experts
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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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Ductless Mini-Split
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Need Commercial Service? Learn More

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