Sonoma County
Heat Pump, HVAC & Water Heater Services in Cotati, CA
Heat pumps, water heaters, AC, furnaces, and mini splits for Cotati homes. Same-day water heater replacement when our schedule allows.
Green Core Heating & Air installs and services heat pumps, water heaters, air conditioning, furnaces, and ductless mini splits for homes in Cotati, CA, from established older neighborhoods to newer developments around town. While Cotati shares some of the same coastal influence as nearby areas, it has its own microclimate — cool mornings, occasional fog, and warm afternoons that can catch homeowners off guard. That combination means your HVAC system needs to be efficient, responsive, and properly designed to handle daily temperature swings.
Whether you're spending time at La Plaza Park, enjoying local restaurants and music in downtown Cotati, or heading out toward nearby trails and open space, you want to come home to a space that feels consistently comfortable. If your system struggles to keep up, leaves certain rooms warmer than others, or runs longer than it should, it's often a sign the system wasn't designed for your home's actual conditions.
Landmarks & neighborhoods we serve
- La Plaza Park
- Downtown Cotati
- Cotati Accordion Festival
- Helen Putnam Regional Park
Serving Cotati
Designed for Cotati Homes
Cotati homes range from established neighborhoods with older construction to newer developments that require properly balanced high-efficiency systems. Many older homes deal with ductwork that was never optimized for airflow, while newer homes can still suffer from poor system sizing or installation shortcuts.
At Green Core Heating & Air, we provide heat pump installation, air conditioning services, furnace repair, mini split systems, and ductwork upgrades tailored specifically to Cotati homes. Instead of simply replacing equipment, we take a design-first approach — evaluating airflow, insulation, and layout to ensure your system works as a complete system.
Whether it's improving ductwork, installing a mini split for a problem area, or upgrading to a high-efficiency heat pump, we focus on solutions that actually solve comfort issues — not just temporarily improve them.
Serving Cotati
Built for Comfort, Efficiency, and Everyday Living
Cotati's climate may seem mild, but that's exactly why system efficiency matters. Your HVAC system should be able to handle cooler mornings and warmer afternoons without constantly running or driving up energy costs.
After a day spent enjoying local events like the Cotati Accordion Festival or relaxing in the park, your home should feel balanced and comfortable without needing constant adjustments. Whether you need AC repair, furnace service, heat pump installation, or airflow improvements, we design systems that deliver reliable comfort while keeping energy use in check.
Serving Cotati
Why We Love Cotati
Cotati has a personality all its own. With its walkable downtown, strong sense of community, and unique local events, it's one of those places that feels both connected and independent at the same time.
We enjoy working in a city where homeowners value practical comfort and long-term solutions. The variety of homes and the tight-knit feel of the community make it rewarding to help people improve their living spaces. Whether it's solving a long-standing comfort issue or upgrading to a more efficient system, we're proud to serve homeowners in Cotati.
Serving Cotati
Water heaters in Cotati
Need a new water heater in Cotati? Green Core installs and replaces heat pump, tankless, gas, and electric water heaters, with same-day replacement when our schedule allows. Gas and electric tank installs start at $2,850.
For the lowest running cost, a SANCO2 or GE GeoSpring heat pump water heater is hard to beat, and Cotati homes served by Sonoma Clean Power may qualify for rebates on top of TECH Clean California and BayREN programs, depending on current funding. Want endless hot water instead? We install Navien tankless units, sized to your household.
Many water heater calls in Cotati are straightforward tank replacements, and since we're just down the road in Petaluma, we can often handle them the same day.
Our services
HVAC services in Cotati
Green Core provides the following services throughout Cotati and surrounding Sonoma County areas:
Heating & cooling in Cotati
Heat Pumps
Heat pumps are one of the most energy-efficient ways to heat and cool your home — reliable year-round comfort in a single, all-electric system.
Learn moreAir Conditioning
A properly designed AC system keeps your home cool and efficient — professional installation, repair, and replacement tailored to your home.
Learn moreFurnaces
Expert furnace installation, repair, and replacement — consistent comfort, improved efficiency, and long-term reliability.
Learn moreMini Splits
Ductless mini splits deliver targeted comfort with zoned control — ideal for additions, garages, older homes, and uneven-temperature spaces.
Learn moreDuct Work
Improve airflow, eliminate inefficiencies, and enhance comfort with ductwork installation, repair, and replacement done properly.
Learn moreHarvest Thermal
Harvest Thermal uses one all-electric heat pump for heating, hot water, and cooling, with smart controls that shift energy use to cheaper hours.
Learn more
Water heating in Cotati
Water Heaters
Heat pump, tankless, gas, and electric water heater installation, repair, and replacement across Sonoma and Marin. Gas and electric tank installs start at $2,850.
Learn moreHeat Pump Water Heaters
SANCO2 and GE GeoSpring heat pump water heaters installed across Sonoma and Marin. Lower bills, cleaner hot water, and help with rebates.
Learn moreTankless Water Heaters
Navien tankless water heater installation, repair, and yearly maintenance in Sonoma and Marin. Endless hot water in a compact, wall-mounted unit.
Learn moreGas Water Heaters
Gas tank water heater replacement and repair in Sonoma and Marin, with same-day replacement when our schedule allows. Tank installs start at $2,850.
Learn moreElectric Water Heaters
Electric tank water heater replacement and repair in Sonoma and Marin, plus heat pump upgrades that can cut water heating costs.
Learn more
Cotati FAQ
Questions from Cotati homeowners
Do you install heat pumps in Cotati?
Yes. Green Core designs and installs heat pumps for Cotati homes, including ducted heat pumps, ductless mini splits, and Harvest Thermal systems. Every install starts with a load calculation so the system is sized for your home.
Are there heat pump rebates in Cotati?
Most Cotati homes get their electricity through Sonoma Clean Power, with PG&E handling delivery. Depending on current funding, heat pumps and heat pump water heaters may qualify for rebates through Sonoma Clean Power, TECH Clean California, or BayREN. We check what's available and file the paperwork. The federal 25C tax credit ended for systems installed after December 31, 2025.
Do you replace water heaters in Cotati?
Yes. We install heat pump, tankless, gas, and electric water heaters in Cotati. Gas and electric tank installs start at $2,850, and we offer same-day replacement when our schedule allows.
Schedule HVAC service in Cotati.
Local crews, fast response, honest pricing. Usually same-day callbacks.