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Approved
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Green Core Heating & Air

5.0(
8
)
Central A/C - Install, Central A/C Service or Repair, Water Heater Installation and Replacement,

About us

Green Core Heating & Air is a family-owned, locally run heating, cooling, and water heating company based in Petaluma, serving homeowners across Sonoma and Marin counties, plus Napa and San Francisco. We install, repair, and maintain furnaces, central air conditioners, heat pumps, ductless mini splits, and ductwork, and we're a Harvest Thermal installer. We also replace and repair water heaters of every kind: gas and electric tanks, tankless, and heat pump water heaters, with same-day replacement when our schedule allows. Every job starts with a free estimate, clear written options, and equipment sized to your home. Our crews show up on time, protect your floors, and leave the space clean. Named Best of the North Bay 2026 by the Bohemian. Call (707) 988-5858; our phones are answered 24/7.

Amenities

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
5.08 Reviews
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Number of StarsImage of DistributionNumber of Ratings
5
100%
4
0%
3
0%
2
0%
1
0%
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Filter reviews by service

Showing 1-8 of 8 reviews
Nick F.
Mar 2026
5.0
Central A/C - Install
Green Core HVAC was awesome to work with! The team did a great job helping us pick the perfect AC unit for our home. They showed up on time, got the new AC installed quickly, and left the place spotless. Our house is cooler and more comfortable than it’s ever been. You can tell these guys really care about doing a great job. I’d 100% recommend Green Core to anyone needing AC work. Super professional, super friendly, and they really know what they’re doing!
Response from Green Core Heating & Air
"Thanks so much, Nick! We're glad we could help you pick the right AC for your home and that the house is cooler than ever. Enjoy the comfort, and we're here whenever you need us."
Brandon P.
Mar 2026
5.0
Central A/C - Install
Huge shoutout to the team for an outstanding AC installation! From start to finish they were professional, punctual, and extremely knowledgeable. The installation was clean, efficient, and they took the time to explain everything before leaving. You can tell they really take pride in their work. Highly recommend them to anyone needing reliable HVAC service!
Response from Green Core Heating & Air
"Thank you, Brandon! Our team takes real pride in a clean install and making sure you know how everything works before we leave. We appreciate you trusting Green Core with your new AC."
Eric P.
Mar 2026
5.0
Gas Heating and Furnace Service
Green Core Heating & Air did an excellent job installing our new gas furnace and completely replacing the ductwork. The owner communicated clearly throughout the entire process and was always quick to answer questions. The crew showed up on time, worked efficiently, and kept everything clean during the installation. Pricing was very fair compared to other quotes we received. I would definitely recommend them to anyone needing HVAC work.
Response from Green Core Heating & Air
"Thanks, Eric! A new furnace and all-new ductwork is a big project, and we're glad the communication and cleanup made it easy. Stay warm this winter, and reach out anytime."
Elizabeth C.
Mar 2026
5.0
Google Review
Rich was on time and respectful. The A/C split system works great for our 2 story house. Thanks for the suggestion.
Gogetta B.
Mar 2026
5.0
Google Review
Richard was absolutely amazing to work with. From the moment he arrived, he was professional, friendly, and clearly knew exactly what he was doing. He took the time to explain the issue with my system in a way that actually made sense which I loved
Michael C.
Mar 2026
5.0
Google Review
Very happy with the service Rich at Green Core provided. Prompt and professional.
Aimee G.
Mar 2026
5.0
Google Review
These guys are total professionals. They are experts and did a fabulous job removing our old gas furnace, getting rid of asbestos, installing a new heat pump, new duct work, new electrical work and they moved our water heater (as per our request.). Our home is heating beautifully. They’re facilitating a federal grant for us— as they partner with QuitCarbon.
Patricia A.
Mar 2026
5.0
Google Review
Zach and Tony were great, they came to fix my water heater within an hour and got it running. Also, let me know how old my water heater is and that I might need to replace it the next time something goes wrong with it. Excellent service! Thank you Zach and Tony!!!

Licensing

Licensed*

Trade License Number

1131183

Trade License Locale

CA

Trade License Expiration

01/31/2027

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Green Core Heating & Air is currently rated 5.0 overall out of 5.

Monday: 7:00 AM - 5:00 PM Tuesday: 7:00 AM - 5:00 PM Wednesday: 7:00 AM - 5:00 PM Thursday: 7:00 AM - 5:00 PM Friday: 7:00 AM - 5:00 PM Saturday: Closed Sunday: Closed

Green Core Heating & Air accepts the following forms of payment: CreditCard

Yes, Green Core Heating & Air offers free project estimates.

No, Green Core Heating & Air does not offer eco-friendly accreditations.

No, Green Core Heating & Air does not offer emergency services.

Yes, Green Core Heating & Air offers warranties.