Sonoma County
Heat Pump, HVAC & Water Heater Services in Petaluma, CA
Heat pumps, water heaters, AC, furnaces, and mini splits for Petaluma 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 Petaluma, CA, from historic houses near D Street to newer neighborhoods on the east side of town. The climate here isn't extreme, but it's unique — cool marine air pushes in through the Petaluma Gap, mornings can be damp and foggy, and summer afternoons can still bring heat spikes. That combination means your HVAC system needs to be properly sized, efficient, and built to handle both temperature swings and moisture.
Whether you're spending the day walking through Downtown Petaluma, grabbing food along the riverfront, or heading out to Helen Putnam Regional Park, you should be able to come home to a space that feels comfortable and balanced. If your system struggles with humidity, uneven temperatures, or constantly running, it's often a sign the system wasn't designed for Petaluma's specific conditions — and that's where we come in.
Landmarks & neighborhoods we serve
- Downtown Petaluma
- D Street
- Petaluma River
- Shollenberger Park
- Helen Putnam Regional Park
Serving Petaluma
Designed for Petaluma Homes
We've worked on everything from historic homes near D Street and downtown to newer developments on the east side of town, and the differences matter. Older properties often deal with outdated ductwork, airflow issues, or systems that were never built for modern comfort expectations. Homes closer to the Petaluma River or open spaces like Shollenberger Park tend to experience more moisture in the air, while neighborhoods further west feel stronger coastal influence.
At Green Core Heating & Air, we provide heat pump installation, air conditioning services, furnace repair, mini splits, and ductwork upgrades tailored to these conditions. Instead of simply replacing equipment, we take a design-first approach — evaluating how your home actually performs so we can recommend solutions that work in real-world conditions, not just on paper.
Serving Petaluma
Built for Comfort, Efficiency, and Air Quality
When it comes to cooling, many Petaluma homeowners don't think they need air conditioning — until those warmer days hit. We install and service high-efficiency AC systems that are properly sized, so you stay comfortable without overpaying on energy bills. For heating, we handle everything from furnace repair to full system upgrades, but more and more homeowners are making the switch to heat pumps. Petaluma's moderate climate makes it an ideal fit for these systems, offering efficient heating and cooling in one solution with quieter operation.
Indoor air quality is another major factor here. Between seasonal pollen, nearby agricultural activity, and naturally damp conditions, many homes benefit from improved filtration, ventilation, or humidity control. After a day out enjoying local events or exploring the outdoors, you should come home to air that feels clean and comfortable — not heavy or stale. We design systems that improve not just temperature, but overall air quality.
Serving Petaluma
Why We Love Petaluma
Petaluma has a character that's hard to find anywhere else. From the historic architecture downtown to the walkable neighborhoods and strong sense of community, it's a place where people genuinely enjoy where they live. Events like the Butter & Egg Days Parade and the Petaluma Fair bring people together, while the riverfront and surrounding parks offer a balance of activity and relaxation.
We enjoy working in a city where homes are as unique as the people living in them. That variety challenges us to design better systems, and it's rewarding to help homeowners improve comfort while preserving the character of their space. At the end of the day, we're not just installing HVAC systems — we're helping our neighbors feel more comfortable in their homes year-round.
Serving Petaluma
Water heaters in Petaluma
Need a new water heater in Petaluma? 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 Petaluma 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.
In Petaluma, we often find older water heaters in garages and closets that are missing seismic straps or proper venting, so every replacement we do is brought up to current code.
Our services
HVAC services in Petaluma
Green Core provides the following services throughout Petaluma and surrounding Sonoma County areas:
Heating & cooling in Petaluma
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 Petaluma
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
Our work
Recent projects in Petaluma
Real Green Core jobs for homeowners in Petaluma, with photos from the job site.
July 2026
Heat pump replaces an attic gas furnace in Petaluma
We removed an aging gas furnace from the attic and installed a high-efficiency Carrier heat pump, sized for the home, so it now heats and cools on one all-electric system.
See the job photosJuly 2026
Harvest Thermal installation in Petaluma
We replaced an aging furnace and water heater with a Harvest Thermal system that handles heating, hot water, and cooling from one high-efficiency heat pump.
See the job photosApril 2026
Carrier system and crawlspace duct upgrade in Petaluma
We replaced an outdated system with a Carrier fan coil and outdoor unit, added dedicated electrical and surge protection, and rebuilt the crawlspace ducts with new insulated duct sealed with mastic.
See the job photos
Petaluma FAQ
Questions from Petaluma homeowners
Do you install heat pumps in Petaluma?
Yes. Green Core designs and installs heat pumps for Petaluma 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 Petaluma?
Most Petaluma 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 Petaluma?
Yes. We install heat pump, tankless, gas, and electric water heaters in Petaluma. Gas and electric tank installs start at $2,850, and we offer same-day replacement when our schedule allows.
Schedule HVAC service in Petaluma.
Local crews, fast response, honest pricing. Usually same-day callbacks.