Air Conditioning Repair in San Jose
We measure what we fix. Airflow, static pressure, superheat, subcooling and the BTU your system actually delivers, written down and handed to you. Three out of four systems we test are running outside what the equipment was built for, and without the numbers nobody would ever know. Air conditioning and heating repair across San Jose and the South Bay, same day on most weekday calls.
You reach John, the owner and technician with 25 years in the trade, not a call center. Most repairs are handled the same day you call, day or night.
Airflow, static pressure, superheat, subcooling and delivered capacity, checked against the manufacturer’s targets and written down. You keep the readings whether the news is good or not.
- 1You send this over. It takes about a minute.
- 2John calls you back, usually within a couple of hours.
- 3We set a same-day or next-morning window.
Rather talk now? Call 408-691-5940
Request a Free Estimate
A real technician answers, not a call center. Most requests get a same-day callback.
Air Conditioning Repair in San Jose and the South Bay
Silicon Valley Comfort is an owner-operated air conditioning repair service in San Jose and the South Bay, with same-day diagnostics and 24/7 coverage. We repair central air, heat pumps and ductless mini-splits with factory procedures for airflow, refrigerant charge and safety, day or night.
HVAC Services We Offer
Residential and light-commercial heating, cooling, and ventilation across San Jose and the South Bay. Tap any service to see what’s included.
We prove the work instead of promising it
Most heating and cooling systems are installed, switched on for a minute to confirm cold air comes out, and signed off. Nobody measures whether the system delivers what it was sold to do. We do, on every job, and you get the readings in writing.
Airflow in CFM, total external static pressure, superheat, subcooling, temperature split and the BTU actually delivered, each compared against the manufacturer’s target for the conditions that day.
Every reading, the target it was measured against, and any fault the system flagged. Including the readings we would rather not have found. A report with only good news on it is marketing, not measurement.
Straightforward Pricing
What It Costs, Up Front
No mystery fees and no runaround. Here is exactly what you pay before we ever open a panel. The diagnostic is applied toward your repair if you proceed.
Standard Diagnostic
$99
Regular business hours. Applied toward your repair if you move forward.
After-Hours / Emergency
$149
Nights and weekends. Same work, same tech, just a $50 off-hours bump.
Commercial Diagnostic
$199
For business and light-commercial systems during regular hours.
Commercial After-Hours
$299
Nights and weekends for commercial and business systems.
Time and Materials
Quoted
For unique jobs, with a pre-agreed not-to-exceed cap. No surprises.
Replacements and Installs
Free
Free written estimates on new equipment and full system replacements.
How Parts Pricing Works
Parts are quoted before we install them, with the supplier invoice attached, so you never pay a flat rate on a $2,000 part.
The $5,000 Rule
Repair or Replace?
Multiply your system’s age in years by the estimated repair cost. If the result tops $5,000, replacement usually makes better financial sense. It is a guideline, not a law. We walk you through the real numbers on your specific equipment.
10 years x $800 repair
$8,000
Usually replace
4 years x $800 repair
$3,200
Usually fix it
Run your own numbers
HVAC Service Areas Across the South Bay
One owner, one truck, no call-center hold music. Tap your county to find your city, local pricing, and the common system issues in your neighborhood.
Recent Work
Projects We’ve Built
Real installs across the South Bay and the Santa Cruz Mountains, from heat pump conversions to full system replacements. Owner-operated, done right the first time.
Heat Pump Install
Boulder Creek Heat Pump Installation
A high-efficiency York heat pump set on a custom stone pad, replacing failing equipment up in Boulder Creek.
View project
AC and Furnace Replacement
San Carlos AC and Furnace Replacement
A new Bryant condenser and furnace with clean line-set routing and a code-compliant install in San Carlos.
View project
Whole-Home Comfort
Two-Story Home Comfort Upgrade
A two-story San Jose home evened out with a new Bryant furnace and a custom upstairs return for balanced comfort.
View projectWhat Customers Say
Read them yourself.
Read them on Google, not just the six I picked out here. Most of these calls started after somebody else quoted a replacement, missed the diagnosis, or could not get out for a week.
We had a great experience with Silicon Valley Comfort HVAC. Our AC completely stopped working during a heat wave, and after calling around, most companies couldn’t come out for several days. John was finishing another job when we called, but he offered to come out that same evening, which was a huge relief. He arrived around 8:30 PM and immediately got to work diagnosing the problem.
I don’t normally write reviews, but John from Silicon Valley Comfort absolutely deserves the recognition. He came out to service my HVAC on a Sunday, that alone speaks volumes about his dedication to his clients!! From the moment he arrived, it was clear that I was in the hands of someone who genuinely cares about doing the job right. John is thoughtful, professional, and incredibly knowledgeable.
I called a few places that had good google and yelp reviews. However, this company was the only one that got to me within a few hrs. Other places did not pick up nor did they return the phone call within the same business day. As the services I received was not a 1 day job, it was very comforting that either John or Nina was accessible and responded to texts or phone calls within the hour.
This review is different because John never set foot in our house and solved our problem. Speaks volumes about his passion and genuineness. Having talked to multiple HVAC specialists and many more who did not return our calls, John was available on our first call. He listened to the issue patiently, asked me the right questions and explained what may be going wrong.
We had a problem with our furnace. I didn't like the response of the company I had worked with before, and based on many positive reviews I called Silicon Valley Comfort. This was a smart move: I got excellent and prompt service and what really impressed me is the deep knowledge and expertise of John about HVAC systems.
My AC went out at 4pm and after calling 7 other “24 hour HVAC” companies who told me they wouldn’t be able to get to me for a couple days, I called Jonathan and Nina at SVC. They came the same night and stayed until the morning hours to identify the problem and implement a fix. It required them to come back a few ours later due to the blower needing soaking for cleaning.
Most recent, straight from our review profiles
Rating and count as of August 2026, across Google, Yelp, Facebook, Houzz and three more. Live figures on our Google Business Profile.
Who We Are
About Us
Silicon Valley Comfort is owner-operated by John Towner and provides fairly priced HVAC services across the South Bay. Our experienced team is available 24 hours a day, 7 days a week.
We treat customers like family and keep your satisfaction and comfort as our top priority. When you call, you get the owner, a technician with 25 plus years in the trade, not a call center.
San Jose and the South Bay
Choosing an HVAC Company in San Jose
The South Bay climate is specific. We get cool foggy summers on the west side and genuine heat waves inland, so a system running fine in Morgan Hill needs different attention than one near the coast.
HVAC Repair in San Jose That Covers the Full System
Our HVAC services in San Jose cover the full range of residential and light-commercial systems: central air conditioning, ductless mini-splits, gas furnaces, heat pumps, and dual-fuel setups. We diagnose against real numbers, static pressure, airflow, and refrigerant charge measured with digital gauges, so the repair fixes the cause and not just the symptom. For emergency calls after hours or on weekends, the diagnostic is $149, same work and same technician, just a $50 bump for the off-hours call.
Why the Same Part Keeps Failing
Air conditioning repair in San Jose is not just replacing the part that failed. It is finding out why it failed and making sure the rest of the system is not about to follow. A capacitor that blows on a 6-year-old system often means something else is pulling too hard on the electrical side, and we check for that before we hand the system back to you.
Independent Bryant Installer In San Jose
What You Get With Silicon Valley Comfort
Owner-operated installs from a tech with 25 plus years in the trade. Every system is sized, commissioned, and stood behind by the person who put it in.
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Load calculations instead of guesswork, so the equipment matches the house and runs efficiently.
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Airflow, static pressure, superheat, and subcooling are verified so the system runs to spec, not just good enough.
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The parts you never see done right the first time, so there is nothing to chase down later.
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Straight talk on the tradeoffs and costs, so you make the call that fits your home and budget.
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The same tech who installs the system stands behind the work, so support does not disappear after the sale.
Bryant® Gas Furnaces
High-efficiency, variable-speed and multi-stage models that run longer on low for quieter, more consistent comfort. Sealed combustion improves safety.
Bryant® Heat Pumps
All-electric systems that heat and cool from a single outdoor unit. Ideal for California’s mild winters and homes adding solar or planning future electrification.
Hybrid / Dual-Fuel
A gas furnace paired with a high-efficiency heat pump and smart controls that pick the most efficient heat source based on outdoor temperature and energy costs.
Bryant® Air Conditioning
Installed for efficiency and long-lasting reliability. Every install includes full refrigerant line testing, triple evacuation, and thorough quality checks.
See Us In Action
CBS Featured Our Work on Bay Area News
CBS interviewed us during a furnace change-out at a San Jose customer’s home. It is the main video on our channel.
Frequently Asked Questions
Real answers about service, pricing, and what to expect.
We serve Santa Clara and San Mateo counties: San Jose, Sunnyvale, Cupertino, Los Gatos, Saratoga, Mountain View, Morgan Hill, and everywhere in between.
Yes. We work with homeowners and small business owners across the South Bay, bringing the same level of craftsmanship to every job.
Yes. There is an extra $50 charge for diagnostics on weekends and after 6pm on weekdays. Call 408-691-5940 and we will work something out.
We offer free estimates on equipment replacements and new installations. For diagnostic and repair work a service-call fee applies, but that fee goes toward the repair if you move forward.
During normal business hours the diagnostic is $99. We use flat-rate pricing for common repairs, and a Time and Materials approach with a pre-agreed not-to-exceed cap for unique jobs.
Multiply your system’s age in years by the estimated repair cost. If the result tops $5,000, replacement usually makes better financial sense.
The compressor, typically $1,200 to $2,500 in parts and labor. On older R-22 systems a compressor failure is almost always a replacement conversation.
We primarily install and service Bryant, but we are trained and experienced across all major brands. If it heats or cools, we can diagnose it.
It matters. Starting in 2025 new equipment uses R-454B. Most modern systems use R-410A, while older systems may still run R-22, now costly and hard to source.
Confirm the thermostat is set to cool, check the air filter, and check the breaker panel. If the outdoor unit’s large insulated copper line is not cold, give us a call.
You get the owner, not a random dispatched tech. Decades of hands-on experience on every job, not a clipboard and a sales pitch.
Big companies make money on volume, not quality. We take the time to do it right, explain what we are doing, and build something that lasts.
We verify static pressure, total airflow, refrigerant charge against actual superheat and subcooling, temperature split, and controls sequencing before we call a job done.
Still have a question? We are happy to talk it through.