Marin County
Heat Pump, HVAC & Water Heater Services in San Rafael, CA
Heat pumps, water heaters, AC, furnaces, and mini splits for San Rafael 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 San Rafael, CA, from older homes near downtown to hillside properties across town. The climate here sits right in between coastal and inland conditions, which means your HVAC system needs to handle both cooler marine air and warmer inland temperatures — often in the same day. Getting that balance right is what makes the difference between a system that works and one that actually feels comfortable.
Whether you're spending the afternoon exploring China Camp State Park, walking through Downtown San Rafael, or enjoying the local shops and restaurants, coming home should feel consistent and comfortable. If your system struggles with uneven temperatures, hot upstairs rooms, or constant cycling, it's usually not just the equipment — it's how the system was designed.
Landmarks & neighborhoods we serve
- Downtown San Rafael
- China Camp State Park
- Mission San Rafael
- Terra Linda
- Dominican
Serving San Rafael
Designed for San Rafael Homes
San Rafael has a wide mix of home styles — from older homes near downtown to hillside properties and newer builds spread throughout the area. Each one comes with its own HVAC challenges. Hillside homes often deal with sun exposure and temperature variation, while older homes may have outdated ductwork or airflow limitations.
At Green Core Heating & Air, we provide heat pump installation, air conditioning services, furnace repair, mini split systems, and ductwork upgrades tailored to these conditions. Instead of simply replacing your system, we evaluate how your home actually performs — looking at airflow, layout, and insulation — to design a solution that works as a whole.
Whether it's upgrading to a high-efficiency heat pump, improving airflow with ductwork modifications, or installing a mini split for targeted comfort, we focus on solutions that fix the problem at the source.
Serving San Rafael
Built for Comfort, Efficiency, and Consistency
San Rafael's mix of coastal influence and inland warmth makes consistency one of the biggest challenges for homeowners. After a day out enjoying the trails at China Camp or spending time downtown, you want to walk into a home that feels balanced — not one room warm and another cool.
We design systems that operate efficiently, quietly, and reliably over time. Whether you need AC repair, furnace replacement, heat pump installation, or ductwork improvements, our goal is to create a system that keeps your home comfortable without constant adjustment or high energy costs.
Serving San Rafael
Why We Love San Rafael
San Rafael has a unique energy — it blends history, culture, and access to the outdoors in a way that feels both active and relaxed. From the character of downtown to the open space along the bay, it's a place where people genuinely enjoy where they live.
We enjoy working in a city with such a wide variety of homes and environments. That variety challenges us to design better systems and deliver solutions that truly match each home. Helping homeowners improve comfort in a place like San Rafael is what makes the work meaningful.
Serving San Rafael
Water heaters in San Rafael
Need a new water heater in San Rafael? 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 San Rafael homes served by MCE 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 San Rafael, we've replaced old gas water heaters as part of whole-home upgrades, including a Harvest Thermal system that now handles one home's heating, cooling, and hot water.
Our services
HVAC services in San Rafael
Green Core provides the following services throughout San Rafael and surrounding Marin County areas:
Heating & cooling in San Rafael
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 San Rafael
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 San Rafael
Real Green Core jobs for homeowners in San Rafael, with photos from the job site.
April 2026
Harvest Thermal installation in San Rafael
We replaced an old Rheem water heater and York furnace with a Harvest Thermal system and a Carrier air handler, giving the home efficient heating, cooling, and hot water from one system.
See the job photos
San Rafael FAQ
Questions from San Rafael homeowners
Do you install heat pumps in San Rafael?
Yes. Green Core designs and installs heat pumps for San Rafael 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 San Rafael?
Most San Rafael homes get their electricity through MCE, with PG&E handling delivery. Depending on current funding, heat pumps and heat pump water heaters may qualify for rebates through MCE, 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 San Rafael?
Yes. We install heat pump, tankless, gas, and electric water heaters in San Rafael. Gas and electric tank installs start at $2,850, and we offer same-day replacement when our schedule allows.
Schedule HVAC service in San Rafael.
Local crews, fast response, honest pricing. Usually same-day callbacks.