Trusted AC Repair · Heating Service · Scheduled Appointments
What We Do
Complete heating and cooling solutions for every San Francisco home and business — from diagnostics and repairs to full system replacements. Explore each service page for the systems and installation options available in San Francisco.
When your air conditioner stops cooling on a rare SF hot day, we respond fast. We diagnose and repair refrigerant leaks, frozen evaporator coils, failed capacitors, faulty contactors, clogged condensate drains, and compressor failures. Request the next available appointment window for your neighborhood.
Learn More →San Francisco's foggy winters demand a reliable furnace. We repair gas furnaces, electric heat pumps, wall heaters, and ductless mini split heating. Our technicians are factory-trained on the heating systems most common in SF's pre-war and post-war housing stock.
Learn More →Installing central air conditioning in a San Francisco home requires careful planning around existing ductwork, electrical capacity, and HOA restrictions. We handle load calculations, equipment selection, city permit filing, and professional installation — making sure your new system runs efficiently from day one.
Learn More →We install high-efficiency gas furnaces that are right-sized for SF's unique climate — mild but consistently damp. From compact 80% AFUE units for older homes to condensing 96% AFUE systems, we help you choose the right equipment and handle every aspect of the installation.
Learn More →San Francisco's mild year-round temperatures make it one of the most heat-pump-friendly climates in the country. Modern cold-climate heat pumps deliver efficient heating and cooling without burning gas — a major advantage given California's push toward electrification. We install and service ducted and ductless heat pump systems.
Learn More →Ductless mini split systems are the HVAC solution of choice for San Francisco's Victorian and Edwardian homes. No ductwork required, whisper-quiet operation, and precise room-by-room temperature control. We install single-zone and multi-zone Mitsubishi, Daikin, and Carrier systems.
Learn More →Why SF Homeowners Trust Us
We understand how HVAC systems behave in San Francisco's microclimates — from the perpetual ocean fog rolling through the Outer Sunset to the warm pockets of the Mission and Potrero Hill. That local knowledge makes us faster to diagnose, more accurate in our recommendations, and less likely to oversell.
After diagnosis, you receive a written repair estimate. Our AC and heating repair pages list the approved diagnostic and common component price ranges.
We explain the repair or installation considerations that affect your system, including access, equipment type, ductwork, electrical capacity, and permit requirements.
Victorian and Edwardian homes can need careful planning around tight access, plaster walls, limited ductwork routes, and equipment placement. We assess those conditions before recommending a scope.
We help you schedule a service visit that fits your system needs and availability. Contact us to request the next available appointment window.
Installation recommendations account for your home's equipment, access, and permit requirements.
Built for San Francisco's Climate
San Francisco sits at the tip of a peninsula between the Pacific Ocean and San Francisco Bay, which creates one of the most unusual urban climates in North America. The city's notorious "Karl the Fog" — a persistent marine layer that rolls in from the ocean each afternoon — can drop temperatures in the Outer Sunset or Richmond District by 15°F compared to neighborhoods just three miles east like the Mission or the Excelsior.
This means a single HVAC system serving a Victorian flat near Ocean Beach operates in almost perpetually cool, damp conditions — which accelerates corrosion of outdoor condenser coils, promotes mold growth in poorly maintained evaporators, and means that most SF households need heating year-round rather than just in winter months.
Meanwhile, homes in Bernal Heights, Potrero Hill, or the Mission — shielded from the ocean fog by the Twin Peaks ridge — experience genuine summer heat events and demand real cooling capacity. We right-size every installation for its specific San Francisco microclimate and building orientation.
Solving SF's Unique Housing Challenges
More than half of San Francisco's residential buildings were constructed before 1960 — most without any forced-air infrastructure. Retrofitting HVAC into a 1905 Edwardian flat or a 1920s Mission-style bungalow requires a fundamentally different skillset than simply swapping a furnace in a tract home.
Our technicians are trained in SF-specific retrofit techniques: routing refrigerant lines through existing interior wall cavities, working around balloon-frame construction, installing concealed mini split heads that satisfy Historic District review boards, and specifying equipment small enough for the tight mechanical rooms common in SF's attached row houses.
We also handle all city permitting, including mechanical permits through the San Francisco Department of Building Inspection (SFDBI), electrical sub-permits, and inspection coordination — so your project stays organized from start to finish.
Where We Work
We serve every neighborhood in San Francisco plus surrounding communities. No matter where you live in the city, we can typically reach you within 2 hours for emergencies.
Our Process
Simple, transparent, and hassle-free — from your first call to a working HVAC system.
Reach us by phone at (628) 209-0962 or submit our quick online form to request the next available appointment window for your system and location.
Our technician arrives with a fully stocked service van and performs a thorough diagnostic evaluation. You receive a flat-rate written quote before any work begins. No pressure, no upsell — just an honest assessment.
With your approval, we complete the agreed scope and test the system before we finish. If additional parts or scheduling are needed, we explain the next steps.
After the job, we send you a digital service report and walk you through what we did and review practical operating guidance for your system.
Real San Francisco Customers
Serving homeowners and businesses across every San Francisco neighborhood.
"Our Lennox furnace stopped working on one of the coldest November nights we've had in the Outer Sunset — which is saying something given how cold it already gets out here near the ocean. I called SF HVAC Repair at 7pm and a technician was at my door by 9pm. He found a cracked heat exchanger, explained exactly what it meant for our air quality, and had a replacement part in his van. Furnace was running safely by 10:30. Unreal service."
"We have a 1908 Edwardian flat in Noe Valley with no existing ductwork — every HVAC company we called either refused the job or quoted us an absurd price to run ducts through our original plaster walls. SF HVAC Repair proposed a three-zone Mitsubishi mini split system that gave us heating and cooling in every room without touching a single wall. The installation crew was immaculate. Two years later, still running perfectly."
"I run a small dental office on Valencia Street and our rooftop HVAC package unit failed mid-summer during a heat wave. Patients were sweating in the waiting room. SF HVAC Repair sent two commercial technicians the same morning, diagnosed a failed compressor, and had a replacement unit sourced and installed within 36 hours. They pulled the commercial permit, coordinated with our building owner, and handled everything. I won't use anyone else."
Common Questions
Honest answers to the questions we hear most often from SF homeowners and businesses.
Book Online
Fill out the form to request an appointment. We will follow up about the next available window. You can also call (628) 209-0962.
Tell us about your system and preferred timing so we can review availability.
We will contact you about the next available appointment window.
You receive a written estimate after diagnosis and before approving repair work.
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Thanks — we've got your appointment request. A member of our SF team will follow up about the next available appointment window. You can also call (628) 209-0962.
