Serving Davis, CA & Surrounding Areas (530) 201-3647
(530) 201-3647

HVAC San Francisco, CA

#1 Rated HVAC Repair in San Francisco, CA

Reliable heating and cooling service for area residents and businesses, with same-day availability.

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

Professional Service, Fast Results

Local residents trust Davis HVAC for no-AC and no-heat emergencies because we combine fast arrival times with thorough, professional workmanship.

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Professional HVAC Service in San Francisco

When you need a dependable heating and cooling company in San Francisco, Davis HVAC is the team to call. We've been keeping local homes and businesses comfortable year after year, earning repeat business one job 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 no-cool emergency 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 fast service and give you upfront pricing 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 running nonstop without cooling, 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 diagnose the problem the same day whenever possible.

Heating and Air Conditioning Service Across San Francisco

Whether you own a townhouse, a rental property, or a commercial space in town, we have the know-how and equipment to handle the full range of heating and cooling work. Our technicians have spent years working on central air conditioners, gas and electric furnaces, heat pumps, and ductless mini-splits throughout the area, and we pay close attention to the climate patterns, housing stock, and local code requirements that shape how systems perform here.

A normal week for our residential team includes capacitor and contactor replacements, flame sensor cleanings, refrigerant leak searches, blower motor swaps, and at least one full system replacement or ductless install. When we do replace equipment, we size it with a room-by-room load calculation instead of guessing. A correctly sized system keeps rooms even, runs efficiently, and avoids the short-cycling that wears out compressors early. Beyond repairs and replacements, we recommend seasonal tune-ups that clean coils, confirm the refrigerant charge, test the safety switches, and measure static pressure, the best single step for a longer-lasting system.

For commercial property owners and managers nearby, we service the rooftop units, split systems, and makeup air and ventilation equipment that restaurants, retail spaces, offices, and multi-unit buildings depend on. We understand that a hot dining room or a freezing office means lost business, so we prioritize fast diagnosis, stock common parts on the truck, and schedule work around your operating hours whenever we can.

Quick Heating and Cooling Help 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 reach a real person who will get a technician headed to your door without delay. Our typical arrival window in the area is typically within a day for urgent calls, and a dead AC in a heat wave or a furnace out on a freezing night is the kind of call we move to the front of the line.

The urgent calls we answer usually follow a pattern. On the cooling side, it's warm air from the vents, an outdoor unit that hums without starting, or an evaporator coil iced over. On the heating side, it's a furnace that lights and then shuts down. Year-round, it's breakers that trip every cycle, clogged condensate drains backing water into the furnace cabinet, and thermostats that have quit. Because our trucks carry capacitors, contactors, igniters, flame sensors, universal control boards, and fittings, most of these get fixed in one visit, at a price you approve before we start.

A little caution before we arrive can head off a much bigger repair. A frozen air conditioner should be shut off at the thermostat with the fan set to "on", which lets the coil thaw safely. Running it frozen can flood the drain pan and damage the compressor. A short-cycling furnace, or any burning smell, means it's time to kill power at the furnace switch and call us right away.

Getting More Years From Your HVAC System in San Francisco

Routine maintenance makes all the difference between a system that runs for years and one that breaks down in the middle of the season. Our advice for homeowners is a short list: a new filter every one to three months, two feet of clearance around the outdoor condenser, a gentle rinse each spring for the condenser coil, and a professional tune-up every spring and fall, so small issues get caught early.

Take a look at the age of your system. That number tells you a lot. 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 past that point and also shows rising bills, uneven temperatures, or frequent repairs, it's usually due for a planned replacement, which is almost always cheaper and less stressful than a rushed emergency install when the first heat wave hits.

If comfort problems do show up, acting quickly keeps them small. A weak capacitor is a quick fix. The same capacitor ignored for a season can take the compressor with it and turn a minor repair into a full system replacement. It's smart to keep our number saved on your phone so you can reach us at the first sign of trouble. Early intervention saves time, money, and miserable nights.

Common HVAC Problems in San Francisco

Ask any homeowner around here what HVAC trouble looks like and you'll hear the same stories: the upstairs that never cools, 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: worn capacitors and contactors, low refrigerant charge, crushed or leaky ducts, and years of skipped maintenance. Our technicians see these problems weekly and carry the parts to fix most of them in a single visit.

Local HVAC Experts

Living and working here gives us firsthand knowledge of what local homes need to stay comfortable. No matter the brand or system type, our team brings the right tools and proven methods to get your home comfortable again.

HVAC Trouble at Home?

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

Get Help: (530) 201-3647

What We Offer

Our local team handles heating and cooling systems of every type for both homeowners and businesses, including:

Let Us Handle Your HVAC System

Pick up the phone and let our specialists take care of the problem for good.

Get Help: (530) 201-3647

Why San Francisco Homeowners Trust Us

Davis HVAC treats this community like home turf, 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 experienced across every major brand, our trucks carry the parts that actually fail, and our work is checked in every mode before we go. That's why neighbors here pass our number around.

Common Heating & Cooling Questions

First, rule out the simple causes. Confirm the thermostat is in cooling mode with good batteries, replace the filter if it's dirty, and check the breakers for the indoor and outdoor units. Ice on the copper lines or an outdoor unit that hums but never starts is your signal to shut the system off, because running it risks damaging the compressor. Call us at (530) 201-3647 and we'll send a technician your way without delay.
Yes, and for most homeowners it's the smartest money you can spend on a system. Each spring and fall, a technician cleans the coils and burners, checks the refrigerant charge and combustion, tests capacitors and safety controls, and measures airflow from supply to return. Catching problems during a tune-up costs far less than a breakdown in the middle of summer, and lower energy bills often cover the cost of the visit.
There's no single cutoff, but some guidelines help. Most component failures on systems under about 10 years old are worth the repair. Past the 15-year mark, or after a compressor or heat exchanger failure at any age, replacing the system usually comes out ahead, and newer equipment brings real efficiency gains. We'll give you both numbers up front and let you decide, because we'd rather earn your trust than sell you a system early.
Both. Most visits begin as a repair, and our technicians work on air conditioners, furnaces, heat pumps, and ductless mini-splits from every major brand. When a system can't be saved, we manage the full replacement, from sizing the new equipment and removing the old unit to installation and testing in every mode. Whichever way it goes, you'll see clear pricing for each option before you decide.
Most calls are scheduled the same day, and an emergency with no heat or no AC moves to the top of our list. When you reach us at (530) 201-3647, you'll get 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.
It depends on the job. Most repairs come in between $150 and $650, depending on the part that failed and the type of system. A full replacement generally runs around $5,000 to $12,000 installed, depending on size and efficiency rating. Before any work starts, you'll get a clear quote based on the diagnostic, and that number doesn't change.
Yes. Mini-splits are a great fit for additions, garages, sunrooms, and older homes that never had ductwork. We size each zone to the room it serves, position the indoor and outdoor units carefully, and take care of the line set, condensate drainage, and electrical connections correctly. If central equipment serves you better, we'll say so.
Every major brand, such as Carrier, Trane, Lennox, Rheem, Goodman, and York, plus ductless systems from Mitsubishi, Fujitsu, and LG. Our technicians carry universal parts that fit most units and can order brand-specific components quickly when a repair requires them.

Other Communities Nearby

Beyond this community, we cover the surrounding towns with the same fast service.

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