San Jose HVAC Repair, Installation & Maintenance
When you need a trusted heating and cooling company in San Jose, Mountain View HVAC is the name to call. We've been keeping local homes and businesses comfortable year after year, earning repeat business one job at a time. Our technicians are local, not dispatched from across the state, 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 handles every kind 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 carry 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 quickly.

Complete Heating & Cooling Services for San Jose Properties
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 townhome, or a storefront. Our technicians know the local climate, the age and construction of local homes, and the code requirements that apply to new installations, which pays off in every diagnosis.
A typical week for our residential technicians includes capacitor and contactor replacements, flame sensor cleanings, refrigerant leak repairs, blower motor swaps, plus the occasional full system replacement or ductless install. When we do replace equipment, we size it with a room-by-room load calculation rather than matching the old unit. Right-sized equipment keeps rooms even, runs efficiently, and avoids the short-cycling that wears out compressors early. Beyond repairs and replacements, we offer seasonal tune-ups that clean coils, confirm the refrigerant charge, test safety controls, and measure static pressure, the most effective thing you can do for longer equipment life.
Local businesses receive the same attention. A hot dining room or a drafty office drives customers and staff away, so our commercial technicians focus on fast diagnosis and keep common parts on board for rooftop units, split systems, and ventilation equipment. Property managers, restaurant owners, and retailers can ask us to schedule work around their business hours whenever we can.
When Your System Fails in San Jose
When your system quits, how fast help shows up matters more than anything else. That's why we keep scheduling flexible across the area and answer every call with a live person. Emergency calls usually get a technician within a day, and we prioritize a failed furnace in a cold snap or a dead AC in the heat as top priority.
The urgent calls we answer tend to 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 frozen solid. On the heating side, it's a furnace that ignites and drops out. And any time of year, it's breakers that trip whenever the system starts, clogged condensate drains overflowing into the furnace cabinet, and thermostats that have quit. Since our trucks carry capacitors, contactors, igniters, flame sensors, universal control boards, and fittings, the majority of these calls get fixed on the first trip, at a price you approve before we start.
Two common situations call for quick action 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 the moving air thaws the coil, because continuing to run it can flood 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 call us. That small step can save you from a far bigger repair.
How San Jose 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 schedule a professional tune-up twice a year, cooling in spring and heating in fall, so small problems get caught while they're still cheap.
Age matters too. Most central air conditioners last 12 to 15 years, furnaces 15 to 20, and heat pumps 10 to 15 with regular service. If your system is past that window and showing symptoms, such as climbing utility bills, rooms that never feel comfortable, or repairs stacking up season after season, a planned replacement is almost always cheaper and much easier on you than an emergency one during the first heat wave of summer.
Small problems don't stay minor when they're ignored. Consider a weak capacitor: replacing it is a short, affordable repair, but left alone for a season, it can burn out the compressor, and suddenly a minor fix has become a full system replacement. That's why we encourage homeowners to keep our number in their phone and call at the first hint of trouble. Catching it early saves time and money and prevents a few miserable nights.
Typical Heating & Cooling Issues in San Jose
Most local HVAC failures give warning signs before they happen. A breaker that trips every few days, a condenser that hums louder each month, rooms drifting further from the thermostat setting, a musty smell at startup. Those are early signs of failing capacitors, refrigerant leaks, dirty coils, and duct problems, and caught early they're an affordable repair. 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.
Local HVAC Experts
As a locally-operated HVAC company, we understand the unique challenges homeowners here face. From capacitors that quit in a heat wave to igniters that fail on the first cold night, our technicians know what to look for and how to fix it.
HVAC Trouble at Home?
Reach us now and get an HVAC technician headed to your property today.
Call (650) 220-0820 NowWhat 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
One call connects you with our team and a clear plan for your comfort issue.
Call (650) 220-0820 NowThe Reason San Jose Keeps Calling Us
Plenty of companies will happily sell you a new system. Mountain View HVAC earns trust around here by fixing the ones that don't need replacing and being honest about the ones that do. We find the actual fault before we quote a dollar, explain your options in plain terms with real numbers, and leave the decision to you. When replacement is the right call, we size the new system with a proper load calculation based on your home's real heating and cooling load, square footage, insulation, windows, and duct capacity, instead of defaulting to whatever's in the warehouse.
The workmanship holds up because we don't cut corners: correct refrigerant charge weighed in rather than guessed, sealed duct connections, proper condensate drainage, verified combustion and airflow on heating equipment, and clean electrical work that passes inspection the first time. We arrive when we said we would, protect your floors, haul away the old equipment, and test the full system in every mode before we pack up. It's why so much of our local work comes from repeat customers and referrals, and why we back every job with a satisfaction guarantee.
HVAC FAQ for Local Residents
More Areas We Cover
Beyond this community, we cover the surrounding towns with the same fast service.