SPRING SPECIAL, Limited Time Offer. Save $3,000 on a New System Installation. While Supplies Last. More details...
SPRING SPECIAL, Limited Time Offer. Save $3,000 on a New System Installation. While Supplies Last. More details...
Expert Heating, Cooling & Air Quality Solutions
Get instant answers to the most common questions
We provide complete HVAC services in San Francisco including heat pump installation, furnace repair and replacement, AC installation and repair, ductless mini-split systems, indoor air quality solutions, and 24/7 emergency service. Our NATE-certified technicians serve all San Francisco neighborhoods.
We offer same-day service throughout San Francisco and are available 24/7 for emergencies. Most service calls are scheduled within 24 hours, and our emergency technicians can typically arrive within 2-4 hours for urgent heating or cooling failures.
Yes! We proudly serve every neighborhood in San Francisco and throughout San Mateo & San Francisco Counties. Our San Francisco-based technicians are familiar with local housing types, climate conditions, and the unique HVAC needs of San Francisco homes and businesses.
Galaxy stands out in San Francisco with 24/7 phone availability, NATE-certified technicians, American Standard Platinum Dealer status, upfront pricing, same-day service, and A+ BBB rating. We specialize in the San Francisco climate and offer lifetime warranty coverage on qualifying systems.
Have more questions? Call us at (925) 578-3379 or schedule a consultation
San Francisco's legendary microclimates are unlike anything else in the country — Karl the Fog rolling through the Golden Gate while the Mission District basks in warm sunshine; the Inner Sunset cold and grey while Bernal Heights enjoys a pleasant afternoon; the Richmond shivering in ocean wind while Noe Valley sits still and comfortable. HVAC in San Francisco means understanding these microclimates deeply, because the right system for a Victorian flat in the Outer Sunset is fundamentally different from what a Noe Valley condo needs. Galaxy Heating & Air Conditioning serves the whole city.
We've worked throughout San Francisco's neighborhoods: ductless heat pumps for Victorian and Edwardian flats in the Richmond, Sunset, and Castro where original architecture is preserved and ductwork installation is impractical; central heat pump systems for larger homes in Pacific Heights, Noe Valley, and Bernal Heights with existing ductwork; high-rise condominium HVAC in SoMa and the Financial District where building systems and HOA requirements govern equipment selection; and commercial HVAC for San Francisco's restaurants, offices, and retail spaces.
San Francisco's climate is dominated more by heating need than cooling — the city's famous fog keeps most neighborhoods cool enough that air conditioning is rarely essential, but comfortable year-round temperatures require consistent, efficient heating. Heat pumps address this perfectly: they deliver efficient, even heat during the Bay City's cool foggy periods and provide the cooling that south-facing Mission or Potrero Hill homes occasionally need during summer heat spikes, all in one system. For San Francisco's Victorian housing stock, this makes ductless heat pumps particularly transformative.
SFPUC and We navigate San Francisco's permit requirements for all permitted installations. Free estimates, flexible financing, same-day scheduling. Call (925) 578-3379.
San Francisco's iconic Victorian and Edwardian homes, along with its unique microclimates, create specialized HVAC needs. Most older SF homes lack central ductwork, making ductless heat pumps the ideal solution-delivering efficient heating and optional cooling without costly renovations or compromising architectural character. Many SF homeowners are upgrading from outdated wall heaters and baseboard systems to modern, efficient heat pumps.
We serve San Francisco's diverse commercial sector, including restaurants and retail throughout the city, tech offices in SOMA and Mission Bay, historic buildings downtown, medical facilities, and residential buildings. Our commercial team handles rooftop units, multi-zone ductless systems, and specialized applications with 24/7 emergency support.
San Francisco's microclimates are legendary: western neighborhoods (Sunset, Richmond) stay cool and foggy year-round (often 55-65°F), while eastern and southern neighborhoods (Mission, Potrero Hill, Noe Valley) enjoy significantly warmer, sunnier weather (often 10-20°F warmer). We recommend ductless heat pumps that provide efficient heating for cool SF mornings while offering optional cooling for those occasional warm days. SF's environmentally-conscious residents especially appreciate heat pumps' all-electric operation and zero fossil fuel emissions.
Areas We Serve:
Click on any service below to learn more about how we can keep your San Francisco home comfortable year-round.
Expert furnace diagnostics and repair to restore your heating. Same-day service for all furnace brands serving San Francisco's climate.
Fast, same-day air conditioning repair for all makes and models. Essential for San Francisco's warm summer temperatures.
Professional heat pump repair for efficient year-round comfort. Expert diagnostics and repairs for American Standard, Mitsubishi, Carrier, and Lennox systems.
High-efficiency furnaces from American Standard, Carrier, and Lennox up to 98% AFUE for reliable warmth in San Francisco's mild winters. Proper sizing and installation for maximum efficiency.
High-efficiency air conditioning systems from top brands for San Francisco homes. Variable-speed cooling designed for optimal energy savings.
All-electric heating and cooling with premium heat pumps from American Standard, Mitsubishi, Carrier, and Lennox. Perfect for San Francisco's climate with energy savings up to 50%.
24/7 Emergency HVAC in San Francisco
Heating or cooling failure? We respond fast — day, night, and weekends.
2-stage systems (Carrier & American Standard) – efficient heating for SF's cool climate
Variable-speed heat pumps (Mitsubishi, Daikin, Lennox) – precise comfort for microclimates
Perfect for SF's historic homes without ductwork, ADUs, and zone control
Installed a Mitsubishi multi-zone heat pump outdoor unit at a classic 1920s Edwardian home in Noe Valley. The homeowners wanted efficient heating and occasional AC without disturbing the home’s original character or installing ductwork. The new inverter-driven system provides individual room control, efficient heating during cool SF mornings, and reduced energy costs by 42% compared to old baseboard heaters.
Installed a Mitsubishi 30,000 BTU air handler discreetly mounted in a Mission District Victorian flat, paired with a high-efficiency outdoor heat pump. The new system replaced aging wall heaters and window AC units, providing efficient heating, cooling for sunny Mission days, whisper-quiet operation, and a 38% reduction in energy costs.
Installed a new American Standard 30,000 BTU high-efficiency furnace and air handler in a Pacific Heights Victorian, integrated with concealed ductwork to preserve the home’s historic character. The advanced system provides efficient heating year-round with optional AC pairing, operates nearly silently, and qualified the homeowner for Bay Area rebates.
Rooftop installation of a Mitsubishi heat pump outdoor unit at a San Francisco home with downtown city views. Rooftop placement is a common Galaxy specialty in dense SF neighborhoods where ground-level space is limited — our crews are trained to safely rig, anchor, and weatherproof equipment on steep, multi-story SF roofs while protecting the building envelope.
Serving San Francisco with elite manufacturer certifications, comprehensive warranties, and local expertise you can trust.
Elite certification for exceptional customer care
Factory-certified installation excellence
Every San Francisco installation protected
Top ratings from San Francisco customers
We live, work, and serve here
Affordable payment options available
HVAC emergencies don't wait for business hours. We're available 24/7 to serve San Francisco residents.
Serving San Francisco and throughout San Mateo & San Francisco Counties with same-day service when you need it most.
Our team is trained, certified, and experienced in servicing all major HVAC brands and models.
No surprises. We provide clear estimates before starting any work in your San Francisco home.
We stand behind our work with a complete satisfaction guarantee on all services.
We're your neighbors in the Bay Area, committed to exceptional service for San Francisco residents.
"I had a major breakdown with my heating system in the middle of winter in Noe Valley. I called Galaxy Heating & Air Conditioning, and they were at my door within an hour. The technician was friendly and really knew his stuff. They got my old system up and running again, and I was so relieved to have heat back just in time for a cold snap!"
"Living in the Mission District, summer can get sweltering, especially in my old condo. I decided it was time for a new AC unit and reached out to Galaxy. They helped me pick the right model for my space and installed it quickly. Now, I can enjoy the summer without melting away!"
"In Pacific Heights, I’ve always struggled with high energy bills due to my aging HVAC system. I called Galaxy for a maintenance check, and they were honest about what needed to be replaced versus what could be fixed. They helped me install a more energy-efficient unit that has already made a noticeable difference. I'm actually excited to see my next bill!"
Series: MSZ-GL / MUZ-GL
The most requested ductless system for San Francisco room additions and older homes. No ductwork, no major construction — quiet and efficient heating and cooling installed in any room.
Model: 5HPL50
Engineered for San Francisco properties with restricted outdoor space. Side-discharge airflow opens more installation spots — narrow yards, mechanical closets, and enclosed pads all become workable.
Model: 5A6V0X
American Standard's most advanced heat pump, suited for San Francisco whole-home installs. Fully communicating technology means every component works together for optimized comfort and efficiency.
Models: 37MURA / 37MUHA
Versatile heat pump for San Francisco homes — works as a standalone ductless unit or paired with an existing furnace or air handler. One outdoor unit can serve up to 5 indoor zones.
Model: 5A7A70
A reliable central air conditioner for San Francisco homes that already have gas heating. The 2-stage compressor spends most of its time running at low stage — less noise, less energy, better humidity control.
Model: SLP99V
Maximum gas efficiency for San Francisco winters — 99% of every gas dollar becomes heat. Variable-speed blower and modulating valve work together to eliminate the hot-cold cycling of older furnaces.
We install and service all major HVAC brands including American Standard, Carrier, Lennox, Trane, Rheem, Mitsubishi, Daikin, Bryant, Goodman, and more. As an American Standard Platinum Dealer, we offer premium equipment with exclusive warranties. Our NATE-certified technicians are trained on all makes and models for San Francisco homes.
We recommend professional HVAC maintenance twice a year—once before cooling season (spring) and once before heating season (fall). San Francisco's famous microclimates create dramatically different conditions across the city: the Sunset and Richmond stay cool and foggy year-round, while Mission, Noe Valley, and Potrero Hill enjoy sunny, warmer weather. Regular maintenance prevents breakdowns, improves efficiency, and extends equipment life. Ask about our maintenance plans for San Francisco homeowners.
Absolutely! We provide free, no-obligation estimates for all new HVAC installations in San Francisco. Our comfort advisors will visit your home, assess your heating and cooling needs, and recommend the best system for your space and budget. We offer flexible financing options with payments as low as $89/month on approved credit.
We offer flexible financing with convenient monthly payments on approved credit. Whether you're upgrading to a high-efficiency heat pump, replacing an aging furnace, or installing a new AC system, we'll help you find a payment plan that fits your budget. Ask about our 0% interest promotions available to San Francisco homeowners.
Most HVAC repairs in San Francisco range from $225-$550 for common issues like igniter replacement, capacitor failure, or thermostat problems. More complex repairs involving motors or control boards can run $500-$1,200. Remember, our $59 diagnostic fee gets applied to your repair cost. We always provide upfront pricing before starting work.
Galaxy Heating & Air Conditioning proudly serves San Francisco and all of San Mateo & San Francisco Counties, plus the greater Bay Area including Contra Costa, Alameda, San Mateo, Santa Clara, and San Francisco counties. We serve residential and commercial customers with the same commitment to quality. Our San Mateo & San Francisco Counties-based technicians know local homes and climate conditions.
Our diagnostic/troubleshooting fee is just $59, and it gets applied toward your repair if you proceed with service. This covers a complete system evaluation by our NATE-certified technicians. We provide upfront pricing before any work begins—no hidden fees or surprise charges. Call (925) 578-3379 to schedule same-day service in San Francisco.
Yes! Galaxy provides 24/7 emergency HVAC service throughout San Francisco and San Mateo & San Francisco Counties. Whether your furnace fails on a cold winter night or your AC breaks down during a heat wave, our technicians are available around the clock. We serve all San Francisco neighborhoods including Mission District, Noe Valley, Pacific Heights. Call (925) 578-3379 anytime.
Galaxy serves all of San Mateo & San Francisco Counties. Browse our full lineup of heating, cooling, and heat pump services in nearby communities.
Call us today for fast, reliable HVAC service from San Francisco's most trusted contractor.
