AC Repair in San Jose, CA
Central air, ductless mini-split, heat pump, and water-cooled system diagnostics, repairs, and maintenance for homes across Santa Clara County and the greater Bay Area.
- Most Repairs Completed Same Day
- Financing Available
- Up to 10-Year Manufacturer Warranty + 1 Year Labor
- Licensed & Insured in CA: #1060833
Fully Certified HVAC Company
Years of experience
AC Repair in San Jose Is Not a Call-and-Swap Situation
Homes across this region were constructed over seven decades of varying building codes, duct configurations, and electrical standards. A 1960s ranch in Willow Glen, a two-story in Almaden, or a Peninsula home with an addition that never received proper airflow returns — each one presents a different set of problems, and identifying the right fix requires more than swapping a part.
San Jose Heating and Cooling has spent 20+ years diagnosing and repairing cooling systems throughout Santa Clara County and the surrounding Bay Area. Before we recommend anything, we look at what the system is actually doing: how the unit is cycling, whether the ductwork is losing conditioned air, whether the electrical supply matches the equipment demand, and how much the home’s insulation is working against the system. That is how a repaired system ends up running reliably instead of breaking down again two weeks later.
An HVAC Company Trusted by the Locals
We measure our success by the relationships we keep, and our customers agree: 4.8/5 stars across 85+ Google reviews.
“We recently had San Jose Heating and Cooling install a new heat pump in our house, and the experience was top-notch from start to finish. A special shout-out to Armando, who …”
Ohad M.
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“I recently had a brand-new AC unit and furnace installed, and I couldn’t be happier with the experience. From start to finish, the entire team was professional, respectful, and extremely knowledgeable…”
Moshe M.
MM
“I recently hired San Jose Heating and Cooling to clean out my attic and replace the insulation, and I couldn’t be happier with the results. The team did a phenomenal job transforming …”
California R.
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AC Repair Services We Provide
Central Air Conditioning Repair
For homes with existing ductwork, a central AC system that is not performing correctly affects every room at once. Common issues include refrigerant leaks, failing compressors, clogged coils, and blower motor problems. We diagnose the root cause rather than treating symptoms, so the repair holds. If the ductwork itself is contributing to the problem, we address that as part of the same visit rather than leaving it for a follow-up call.Ductless Mini-Split Repair
Mini-splits solve cooling problems that central air cannot handle, but they require technicians who understand how they are built. Refrigerant charge issues, sensor faults, drainage clogs, and communication errors between the indoor and outdoor units are all common failure points. As a Mitsubishi authorized dealer, San Jose Heating and Cooling repairs ductless systems to manufacturer standards, whether the unit was installed by us or someone else.Heat Pump Repair
A heat pump handles both cooling and heating, which means a failure affects comfort in both seasons. Reversing valve faults, refrigerant issues, defrost cycle problems, and electrical faults are among the most common repair needs we see. If your heat pump is struggling in cooling mode or failing to switch between modes correctly, we will diagnose the system fully and repair it so both functions work as intended. You can also read more about our heat pump services.Water-Cooled AC System Repair
Water-cooled systems reject heat through water rather than outdoor air, making them a practical fit for restaurants and commercial kitchens where rooftop constraints and long daily operating hours make standard condensers a poor match. When these systems underperform, the causes often involve water treatment issues, pump failures, or heat exchanger fouling. San Jose Heating and Cooling assesses the site and repairs the system to manufacturer specification and local code so the unit can keep up with the load it was designed to handle.AC Maintenance and Tune-Up
Routine maintenance is the most reliable way to avoid emergency AC repair in San Jose. A seasonal tune-up covers coil cleaning, refrigerant level verification, electrical connection checks, filter inspection, drainage clearing, and thermostat calibration. Systems that are serviced regularly run more efficiently, break down less often, and last longer. If you want to get ahead of a problem before summer arrives, a maintenance visit is the place to start.Our AC Repair Process
Every repair follows the same structured approach, whether it is a straightforward fix or a more involved diagnostic.
In-Home Diagnostic
We inspect the unit, measure system performance, and trace the problem to its actual source before recommending any repair. You receive a clear scope and a firm price, not a rough estimate.
Honest Repair vs. Replace Assessment
If the system has years of reliable service left, we say so and repair it. If the repair cost is approaching the value of a new unit, we tell you that too. Our technicians are not compensated to push replacements.
Repair to Spec and Code
Refrigerant handling, electrical work, and component replacement are all completed to manufacturer specification and California code. We do not take shortcuts that lead to callbacks.
Testing and Walkthrough
We run the system through its full operating range after the repair, confirm it is performing correctly, and walk you through what was done and what to watch for before we leave.
If you are not sure whether what you are seeing warrants a service call, reach out and we will help you assess it. If the system is beyond repair, see our AC installation and replacement services.
Signs Your AC Needs Repair Now
An air conditioner rarely fails without warning. These are the signals that your system needs a technician before the problem gets worse.
- The system runs but does not cool. If the air coming from your vents is not noticeably cooler than the air in the room, the unit is running without doing its job -- refrigerant loss, coil issues, or a failing compressor are common causes.
- It is short cycling. A system that turns on and off every few minutes is not able to complete a proper cooling cycle, and that pattern accelerates wear on the compressor.
- Bills are climbing without a change in usage. A system working harder than it should to deliver the same amount of cooling draws more power. If nothing changed in your habits but the bill went up, the equipment is the variable.
- Rooms never reach the set temperature. Uneven cooling and hot spots can trace back to refrigerant levels, airflow restrictions, or duct problems -- none of which resolve on their own.
- Strange noises or smells at startup. Grinding, banging, rattling, or a burnt smell when the system kicks on all point to mechanical or electrical problems that need attention immediately.
- Ice on the unit or refrigerant lines. Ice forming on the coil or lines is a symptom, not the cause -- it usually points to a refrigerant issue or a severely restricted airflow problem.
- Water pooling around the indoor unit. A clogged condensate drain can cause water damage quickly if it is not cleared. It is a simple repair that becomes a costly one if ignored.
What Sets Our Repairs Apart
Ductwork and Insulation Handled by the Same Team
A fully functioning AC unit connected to leaking ducts and inadequate attic insulation will underperform no matter how well the repair was done. San Jose Heating and Cooling handles ductwork and attic insulation in house, so every contributing factor gets addressed in one project rather than across multiple contractors and disconnected schedules.
Electrical Work Covered Under Our License
Some AC repairs involve electrical components — wiring faults, capacitor replacement, disconnect issues, or a panel that cannot support the system’s load. Our California license covers that electrical work, so a wiring problem does not stall your repair while you wait on a separate contractor.
Certified Across Five Major Brands
San Jose Heating and Cooling is Diamond Certified, a Bryant dealer, and certified with Carrier, Mitsubishi, Goodman, and Amana. Our technicians are trained directly by the manufacturers on the equipment they service and stay current as technology evolves.
Licensed and Insured in California
Fully licensed in California (#1060833) with liability and workers’ compensation coverage, so qualified, accountable people are doing the work inside your home.
Warranty Coverage on Every Repair
Parts installed during a repair carry manufacturer warranty coverage, and our own workmanship is backed by a 1-year labor warranty. If something comes up after we leave, you call us and we make it right.Financing Your AC Repair
An unexpected repair bill is rarely something you planned for. When you receive your invoice, you will have the option to apply for financing right then and there, so a repair you need does not have to wait on savings you do not have available.
Ready to Get Your AC Running Again?
Whether your system stopped cooling completely or is just not performing the way it should, San Jose Heating and Cooling is ready to help. Fill out the form below and we will get back to you the same day, or call us directly to book your visit.
Serving San Jose and the Greater Bay Area
Your home comfort starts close to home. San Jose Heating and Cooling provides AC repair in San Jose and throughout Santa Clara County, with service extending into San Mateo, Alameda, and Contra Costa Counties.
Santa Clara County, CA
- San Jose
- Mountain View
- Palo Alto
- Santa Clara
- Sunnyvale
- Cupertino
- Milpitas
- Campbell
- Los Gatos
- Morgan Hill
San Mateo County, CA
- Redwood City
- Menlo Park
- San Mateo
- Foster City
- Belmont
Alameda County, CA
- Oakland
- Berkeley
- Fremont
- Livermore
- Pleasanton
Contra Costa County, CA
- Concord
- Martinez
- San Ramon
- Hercules
- San Pablo
- Also serving Vallejo
How quickly can you get someone out for a repair?
We offer same-day appointments across the Bay Area, and 24/7 emergency service for situations where the system fails completely and waiting is not an option.
How do you determine what is wrong with my system?
We inspect the unit, test system performance, and trace the problem to its source before recommending any work. You receive a clear diagnosis and a firm price before anything is touched.
Do you offer financing for repairs?
Yes. When you receive your invoice, you can apply for financing on the spot so a necessary repair fits your budget without delay.
What warranty comes with a repair?
Parts carry manufacturer warranty coverage, and our labor is backed by a 1-year workmanship warranty. If the repair does not hold, you call us and we handle it.
Do you repair all AC brands?
We are certified with Bryant, Carrier, Mitsubishi, Goodman, and Amana, and we service all major brands. The brand on your unit does not determine whether we can help.
Can you repair a ductless mini-split system?
Yes. As a Mitsubishi authorized dealer, San Jose Heating and Cooling is trained and equipped to diagnose and repair ductless systems, regardless of who installed them originally.
How do I know if I should repair or replace my system?
We will tell you honestly during the assessment. If the system has useful life remaining and the repair cost is reasonable, we say repair it. If the unit is aging and repair costs are stacking up, we will lay out the replacement numbers so you can make an informed decision.
Will a repair fix my uneven cooling problem?
It depends on the cause. Refrigerant issues and airflow restrictions can create hot spots and are addressable through repair. If the underlying problem is duct design or system sizing, a repair alone will not solve it — and we will tell you that upfront rather than let you find out on your own.
Do you handle the electrical side of a repair?
Yes. Our California license covers electrical work, so if a repair involves wiring, capacitors, disconnects, or panel capacity, we handle it as part of the same visit.
Do you serve my area?
Most likely. San Jose Heating and Cooling serves all of Santa Clara County, reaches into the San Mateo Peninsula, and covers parts of Alameda and Contra Costa Counties, including up to Vallejo. Reach out and we will confirm your address is in our service area.