Trusted San Francisco HVAC Service
When you need a reliable heating and cooling company in San Francisco, Davis HVAC is the company to call. We've been keeping local homes and businesses comfortable through every season, building our reputation one satisfied neighbor at a time. Our experienced technicians live and work in the area, which means shorter waits and a real understanding of the climate patterns, housing stock, and ductwork quirks that shape how HVAC systems here perform and fail.
From a single furnace that won't light to complete system replacements, ductless mini-split installations, and seasonal maintenance programs, our team takes on every type of residential and commercial heating and cooling need. We offer prompt service and give you a clear, written quote before any work begins, no hidden fees, ever. Our trucks are stocked with the parts that fail most, capacitors, contactors, igniters, flame sensors, blower motors, and thermostats, so most repairs are finished in a single visit.
Whether your air conditioner is tripping the breaker, your furnace is clicking but never lighting, or you're simply planning ahead for a system past its prime, one call to (530) 201-3647 gets an experienced local technician headed your way with everything needed to restore your comfort quickly.

Full-Service HVAC Care for San Francisco Homes and Businesses
Heating and cooling around here covers a lot of ground: aging furnaces in established neighborhoods, newer heat pumps in recent construction, ductless mini-splits in additions and converted garages, and rooftop units on commercial buildings. Our team works on every one of those systems. We have years of field experience, and we know how the weather here, the age of local homes, and local code affect the way a system runs and fails.
Most homeowners we meet need one of three things: a repair, a replacement, or regular maintenance. Repairs tend to be quick: a burned contactor, a corroded flame sensor, a refrigerant leak, or a worn-out blower motor. When we replace a system, it gets a proper load calculation, not a guess based on the old unit's tonnage, which keeps temperatures even and stops the new equipment from short-cycling itself to an early death. Maintenance visits cover coil cleaning, a refrigerant charge check, safety control testing, and a static pressure reading, and nothing does more to extend equipment life.
Commercial service is a big part of what we do too. We service rooftop units, split systems, and ventilation equipment for restaurants, retail stores, offices, and multi-unit buildings, and we know that every hour of downtime hurts your bottom line. To keep disruptions short, we keep common commercial parts stocked, diagnose quickly, and schedule repairs around your operating hours whenever possible.
Quick Heating and Cooling Help in San Francisco
Call us with a problem and a real person picks up, not a phone tree. Most calls are scheduled within a day, and true emergencies, a dead air conditioner during a heat wave or a furnace that goes out on a bitter night, jump to the top of the schedule. We keep the process simple so you're not stuck waiting for a callback.
Common emergencies we handle include air conditioners blowing warm air, outdoor units that hum but won't start, furnaces that ignite and then shut down, breakers that trip whenever the system starts, frozen evaporator coils, clogged condensate drains backing up into the furnace cabinet, and thermostats that have stopped responding. Our trucks carry the capacitors, contactors, igniters, flame sensors, universal control boards, and fittings needed to finish most repairs in a single visit. We provide upfront pricing every time, so you know exactly what the work will cost before we begin.
Two situations call for a quick step from you before a technician arrives. The first is an iced-over air conditioner: turn the system off at the thermostat and set the fan to "on" so warm indoor air thaws the coil, because running it frozen can flood the drain pan and damage the compressor. The second is a furnace that keeps cycling on and off or gives off a burning smell. Turn it off at the service switch and give us a call. Those few minutes can save you from a far bigger repair.
How San Francisco Homeowners Can Extend HVAC Life
The best way to avoid a mid-season breakdown is routine maintenance. We recommend that homeowners replace filters every one to three months, keep shrubs and grass trimmed two feet back from the outdoor condenser, rinse the condenser coil each spring, and have a professional tune-up twice a year, cooling in spring and heating in fall, so small problems get caught while they're still inexpensive.
Take a look at the age of your system. Its age tells you a lot. With regular service, most air conditioners make it to 12 to 15 years, gas furnaces 15 to 20, and heat pumps 10 to 15. If your system is past that range and also shows rising bills, rooms that never quite reach temperature, or frequent repairs, it's a strong candidate for a planned replacement, and that's almost always cheaper and easier on everyone than a rushed emergency install in peak season.
The earlier you report a comfort problem, the cheaper it usually is. A capacitor that's starting to fail is an easy, low-cost part to replace, yet the same part, ignored through a full season, can take out the compressor and turn a simple fix into a full system replacement. Save our number in your contacts today so help is one call away as soon as something sounds or feels wrong in your home. A quick call saves time, money, and miserable nights.
Comfort Challenges San Francisco Homeowners Face
Ask any homeowner around here what HVAC trouble looks like and you'll hear the same stories: the AC that quit during the hottest week of the year, the furnace that woke everyone up with a loud bang at 2am, the system that runs all day but never satisfies the thermostat. Behind those stories are predictable culprits: failing blower motors, low refrigerant charge, crushed or leaky ducts, and years of skipped maintenance. Our technicians run into these problems every week and carry the parts to fix most of them on the first trip.
Your Go-To Heating & Air Team
Living and working here gives us firsthand knowledge of what local homes need to stay comfortable. Whether it's an emergency repair or a routine seasonal tune-up, our team has the expertise to address every concern.
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Call (530) 201-3647 NowWhat We Offer
From single-family homes to commercial properties, our team covers every comfort need in the area, including:
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Get Help: (530) 201-3647Why San Francisco Residents Choose Us
Davis HVAC treats this community like our own backyard, because it is. We show up when we say we will, we diagnose before we quote, and we put real numbers on both repair and replacement so you can decide based on facts, not pressure. Our technicians are seasoned on everything from 20-year-old furnaces to inverter heat pumps, our trucks carry the parts that actually fail, and our work is tested before we leave. It's the reason so much of our local work comes from referrals.
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Other Communities Nearby
Beyond this community, we cover the surrounding towns with the same fast service.