Serving Mountain View, CA & Surrounding Areas (650) 220-0820
(650) 220-0820

HVAC San Francisco, CA

Trusted Heating & Cooling Service in San Francisco, CA

Serving local homes and businesses with expert air conditioner, furnace, heat pump, and mini-split work.

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★★★★★ 4.9 / 5 stars (95+ reviews)
HVAC technicians serving San Francisco

Professional Service, Fast Results

Serving this community and the surrounding area, Mountain View HVAC delivers reliable HVAC repair and installation with fast response times and lasting results that local homeowners depend on.

1,200+Installs & Repairs
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Complete Comfort Care in San Francisco

When you need a dependable heating and cooling company in San Francisco, Mountain View HVAC is the name to call. We've been keeping local homes and businesses comfortable through every season, building our reputation one satisfied neighbor at a time. Our technicians are local, not dispatched from across the state, which means faster response times 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 no-cool emergency to complete system replacements, ductless mini-split installations, and seasonal maintenance programs, our team handles every kind of residential and commercial heating and cooling need. We offer fast 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 blowing warm air, your furnace is clicking but never lighting, or you're simply planning ahead for a system past its prime, one call to (650) 220-0820 gets a skilled local technician headed your way with everything needed to diagnose the problem the same day whenever possible.

Full-Service HVAC Care for San Francisco Homes and Businesses

We service every type of heating and cooling equipment you'll find in local homes and businesses, from central air conditioners and gas furnaces to heat pumps and ductless mini-splits. It makes no difference whether the building is a single-family house, a condo, or a busy office. Our techs know the local climate, the age and construction of local homes, and the code requirements inspectors enforce, and that knowledge shows up in the quality of every repair.

On the residential side, we handle everything from quick fixes, like a failed capacitor, a burned contactor, a dirty flame sensor, or a seized blower motor, to refrigerant leak repair, complete system replacements, and ductless additions. We size every new system with a proper load calculation instead of a rule of thumb, so you get even temperatures and reasonable utility bills instead of a unit that short-cycles itself to an early death. Our seasonal tune-ups clean coils, verify refrigerant charge, test safety controls, and check static pressure, still the most reliable way to extend equipment life.

Commercial work makes up a large share of our work too. We service rooftop units, split systems, and ventilation equipment for restaurant kitchens, shops, offices, and multi-unit buildings, and we know that a day without cooling costs your bottom line. To keep that downtime short, we keep common commercial parts stocked, diagnose quickly, and schedule repairs around your operating hours whenever possible.

Fast HVAC Response in San Francisco

Heating and cooling failures rarely wait for a convenient day, which is why we offer fast, flexible scheduling for most situations. When you call, you'll speak with a real person who gets a technician headed to your door quickly. Our typical arrival window in the area is usually within a day for urgent calls, and a dead AC in a heat wave or a furnace out on a freezing night is exactly the kind of call we move to the front of the line.

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 every time the system runs, frozen evaporator coils, clogged condensate drains backing up into the furnace cabinet, and thermostats that have simply given up. 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 our technician gets there. The first is an iced-over air conditioner: switch the system off at the thermostat and set the fan to "on" so the moving air thaws the coil, because continuing to run it can overflow the drain pan and hurt the compressor. The second is a furnace that short-cycles or gives off a burning smell. Shut it down at the switch and give us a call. Those few minutes can prevent a far bigger repair.

Getting More Years From Your HVAC System in San Francisco

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 cheap.

Take a look at the age of your system. Its age says a lot about what comes next. Most well-maintained air conditioners make it to 12 to 15 years, furnaces 15 to 20, and heat pumps 10 to 15. If your system is beyond that point and also shows rising bills, rooms that never quite reach temperature, or repeated repairs, it's usually due for a planned replacement, which is almost always cheaper and less stressful than a rushed emergency install in peak season.

Small problems don't stay minor when they're ignored. Take a weak capacitor: replacing it is a quick, affordable repair, but left alone for a season, it can take the compressor with it, and just like that a minor fix becomes a full system replacement. That's why we ask homeowners to keep our number in their phone and call at the first sign of trouble. Catching it early saves money and spares you a few miserable nights.

Typical Heating & Cooling Issues in San Francisco

Most local HVAC failures announce themselves before they happen. A breaker that trips more than once, a condenser that hums louder each month, rooms drifting further from the thermostat setting, energy bills creeping up with nothing else changed. These are the early symptoms of failing capacitors, refrigerant leaks, dirty coils, and duct problems, and caught early they're a quick visit. Ignored, they take out compressors and heat exchangers, the two most expensive parts in the system. We find the root cause instead of treating symptoms, so small problems stay small.

Your Neighborhood Technicians

We know this area inside and out, including the climate patterns and housing stock that affect local comfort systems. From iced-over coils to furnaces flashing error codes, our technicians are equipped to handle it all.

Facing a Comfort Emergency?

Don't wait for a struggling system to quit completely. We respond quickly across the area and nearby neighborhoods.

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Heating & Cooling Services We Provide

From single-family homes to commercial properties, our team covers every comfort need in the area, including:

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Why San Francisco Homeowners Trust Us

Choosing an HVAC company comes down to trust, and trust has to be earned. Mountain View HVAC earns it by recommending the $150 repair when that's what the system needs, by sizing replacements with real load calculations instead of guesswork, and by standing behind every repair after the truck pulls away. We keep response times short throughout the area, and every visit ends with the system tested and your questions answered.

HVAC FAQ for Local Residents

Check the thermostat setting and batteries, the filter, and the breakers for both the indoor and outdoor units. If the outdoor unit hums but won't start, or ice has built up on the refrigerant lines, shut the system off so the compressor isn't damaged and call us at (650) 220-0820. We'll get a technician moving your way right away.
We work on just about everything installed in local homes, from Carrier, Trane, and Lennox to Rheem, Goodman, and York, along with ductless equipment from Mitsubishi, Fujitsu, and LG. Universal parts on the truck cover most units, and when a repair needs a brand-specific component, we can source it quickly.
Yes, we offer seasonal maintenance for homes throughout the area. The spring visit focuses on cooling: coil cleaning, a refrigerant charge check, capacitor testing, and airflow readings. The fall visit covers heating: burner cleaning, a combustion check, and safety control testing. Staying on that schedule extends equipment life, heads off breakdowns in the middle of a heat wave or cold snap, and often pays for itself in energy savings.
Most calls get a same-day appointment, and an emergency with no heat or no AC gets priority over routine work. When you reach us at (650) 220-0820, we'll give you a straight arrival window, and since the technician shows up with capacitors, contactors, igniters, and motors already on board, the job usually wraps up in one trip.
Both. Most calls start as a repair, and our technicians work on air conditioners, furnaces, heat pumps, and ductless mini-splits from all the major manufacturers. When repair no longer makes sense, we manage the whole replacement, from sizing the new equipment and hauling off the old unit to installation and testing in every mode. Either way, you'll see clear pricing for both options before you decide.
Two things decide it: how old the system is and what actually broke. A system under about 10 years old is usually worth repairing. Beyond about 15 years, or if the compressor or heat exchanger goes, a new system is usually the better use of your money, especially once you factor in the efficiency improvements of new equipment. Our technicians lay out both numbers side by side and let you choose.
Most repairs fall between $150 and $650 depending on the part and system type, while full system replacements usually run from around $5,000 to $12,000 installed, depending on size and efficiency. Every job starts with a diagnostic and a written, upfront quote. The price you approve is the price you pay, with no surprises added later.
Yes, and a mini-split is often the best answer for additions, garages, sunrooms, and older homes that were never ducted. Every zone is sized to the actual load of its room. We map out where the indoor and outdoor units go and handle the line set, condensate drain, and electrical work properly. And we'll be upfront if central equipment makes more sense for your home.

Nearby Areas We Serve

Live just outside this area? We likely serve your neighborhood too.

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