From a dead AC in July to a furnace that won't fire in January, our experienced technicians deliver safe, effective heating and cooling service for every home.
Your HVAC system touches everything in your home, sleep, comfort, air quality, energy bills, and a failing unit disrupts all of it. San Mateo HVAC keeps San Mateo homeowners covered with complete residential service: repairs, replacements, new installations, and seasonal maintenance.
From AC replacements and furnace installs to seasonal tune-ups, we handle it all with honest pricing and lasting results.
Coils cleaned, charge checked, safeties tested, twice a year.
Cold air back fast, with the common parts already on the truck.
Honest repair-or-replace advice, and clean changeouts when it's time.
Heating and cooling repairs on every major brand, most finished in one visit.
Targeted comfort for additions, garages, and rooms the ducts never reached.
New HVAC systems, sized, sealed, and commissioned the right way.
Heating systems of every type repaired and tested before we leave.
Gas and electric furnace repairs with combustion and safety checks included.
Efficient AC systems, correctly sized and installed to last.
Cleaner air and better airflow, with the debris actually removed.
Furnace replacements matched to your home, not the biggest unit on the truck.
Efficient heat pump installs that heat in winter and cool in summer.
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Our experienced technicians handle every home heating and cooling problem, big or small.
Call (650) 220-0817 Today
A trickle of air from the registers, warm air from the vents in July, a furnace that cycles on and off without ever warming the house: HVAC problems tend to snowball once they start. San Mateo HVAC sends experienced technicians who find the actual fault and repair it correctly, so your house is comfortable again without a long wait.
We stock the most common failure parts, including capacitors, contactors, igniters, and fan motors, so many repairs are finished on the first visit, whether the equipment is a gas furnace, a split AC, a heat pump, or a ductless mini-split.
Before we pick up a wrench, we figure out exactly what's wrong. Our technicians check the age and tonnage of your system, the refrigerant charge, the heat exchanger and coils, and the condition of your ductwork. Then you get a straightforward recommendation and the complete price up front, whether the job is swapping a weak capacitor or replacing the whole system. No hidden fees, no surprise add-ons.
The problem with HVAC failures is that most of them develop where you can't see them. A pinhole leak in the evaporator coil slowly drains refrigerant, the blower bearings wear down gradually, and a weak capacitor lasts right up until the first hot afternoon, when the compressor won't start. If your bills are climbing, airflow drops, or ice forms on the lines, have the system checked before a repair turns into a replacement.
Not every call is an emergency. Many San Mateo homeowners ask us to size up an aging system before it fails, and it's a smart move. With a typical AC or furnace lifespan of 12 to 18 years, replacing on your own schedule beats a rushed swap in the middle of a heat wave. We'll give you a straight answer on how much life your equipment has left.
Routine maintenance is the most reliable way to keep your home comfortable year-round. Regular service heads off failures before they start, keeps coils and burners clean, and catches small faults while they're still cheap to fix. At San Mateo HVAC, every plan is built around your home's specific equipment, with scheduled visits that cover coil cleaning, refrigerant charge verification, capacitor and contactor testing, burner and heat exchanger inspection, condensate drain clearing, filter replacement, and a static pressure check on the ductwork.
No two maintenance plans look exactly alike. An older furnace gets a closer look than a new heat pump, and a dusty, high-pollen area means condenser coils clog faster. We build spring cooling and fall heating visits around your system, your climate, and how your family uses it, so every tune-up helps keep the system efficient and extends the life of the equipment you've already paid for.
The savings show up faster than most people expect. Clean coils move heat more efficiently, a correct refrigerant charge takes strain off the compressor, and a fresh filter spares the blower motor. Compared with the cost of replacing a system even one year early, a maintenance plan is a bargain.
An undersized system runs nonstop and never catches up on the hottest days, while an oversized one short-cycles, wastes energy, and leaves the house humid. San Mateo HVAC sizes every replacement and new installation to your actual home. That means a proper load calculation based on square footage, insulation, window exposure, and duct layout, rather than simply matching the tonnage of the old unit. For ductless mini-splits, it means matching head capacity to each zone so every room holds its setpoint.
Picking a new system comes down to more than efficiency ratings. We'll compare heat pumps against a furnace-and-AC pair, and ducted against ductless, laying out operating costs, electrical and venting work, and the installation itself. Families with a growing household frequently do best with two-stage or variable-speed equipment, which holds more even temperatures from room to room and uses less energy. The decision is yours, based on your home and budget.
Repairs We HandleMost repair calls we get in San Mateo come down to a handful of recurring problems. The AC runs but the air never gets cold. The furnace won't light, or it lights and shuts off minutes later. Ice builds up on the evaporator coil, the condenser hums without starting, or a ductless head flashes an error code. Refrigerant leaks, clogged condensate drains, and thermostats that forget their settings round out the list. Our technicians handle all of them, always targeting the component that actually failed.
The correct fix depends entirely on what actually failed. On cooling systems, it's usually a capacitor, contactor, or fan motor. On furnaces, it's more often an igniter, flame sensor, or control board. Leaky ductwork bleeding conditioned air into the attic gets sealed, and we recover and recharge the refrigerant once the leak itself is repaired. A few of these problems are simply a nuisance, but a cracked heat exchanger or a clogged condensate drain can be a real safety or water-damage risk, and we treat it accordingly.
An inspection today can save you an expensive emergency later. Call for an honest assessment.
Call (650) 220-0817 NowWhen the AC dies in the middle of a heat wave or the furnace quits on the coldest night of the year, you need help now, not next week. San Mateo HVAC provides same-day and emergency HVAC service for San Mateo homeowners, with quick response times. Our technicians arrive fully equipped to diagnose the fault, make the repair, or, when a system is beyond saving, get a properly sized replacement installed quickly.
Every visit comes with transparent, upfront pricing and no hidden fees, and our technicians focus on fixing the actual cause for lasting results. We've helped thousands of San Mateo homeowners get their comfort back, and we're happy to walk you through exactly what we found, what we fixed, and how to keep your system healthy going forward.
Root-Cause RepairsWe focus on solving the real problem, not just the symptom you noticed. San Mateo HVAC tracks down the failed component, the airflow restrictions wearing on your equipment, and the installation shortcuts that cause early failures, so problems are far less likely to return. As a family-owned, experienced and professional company, we treat your home like our neighbors' homes, because that's exactly what you are.
Each job follows the same straightforward process. We inspect carefully, recommend honestly, complete the repair or installation professionally, and give you honest maintenance advice. From the first call to the final walkthrough, we handle every detail. Want year-round peace of mind? Ask about our maintenance plans.
From a simple tune-up to a full system replacement, our team is ready anywhere in San Mateo.
Call (650) 220-0817 Now