24/7 Emergency HVAC Repair in San Jose, CA
Round-the-clock urgent repairs for central air, ductless mini-split, heat pump, and water-cooled systems serving homes across Santa Clara County and the greater Bay Area.
- Most Emergency Calls Responded to 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
When Your HVAC Fails in the Bay Area, Every Hour Counts
Homes across San Jose were constructed over seven decades of evolving building codes, varied duct configurations, and different electrical standards. A 1960s ranch in Willow Glen, a two-story in Almaden, a Peninsula property with an addition that was never properly ducted, each situation calls for a specific solution, and equipment alone is only part of the answer.
San Jose Heating and Cooling has spent 20+ years responding to emergency HVAC breakdowns and urgent system failures throughout Santa Clara County and the surrounding Bay Area. Before we touch your system, we assess exactly what went wrong: the condition of your ductwork, your electrical panel, your refrigerant charge, and the airflow throughout your home. That is how our 24/7 emergency HVAC repair in San Jose, CA gets your system running right instead of just running again.
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.
OH
“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.
CR
Emergency Repair Services We Provide
Central Air Conditioning Repair
For homes with existing ductwork, a failed central air system can make the entire house unlivable within hours. Our technicians diagnose the root cause rather than patching symptoms, because a compressor cycling too hard or a refrigerant leak does not fix itself with a reset. We size the repair to what the system actually needs, which means steadier temperatures and a unit that is not headed toward the same failure two seasons from now.Ductless Mini-Split Repair
Mini-splits fail in ways that central systems do not: communication errors between the indoor and outdoor units, refrigerant leaks in line sets run through tight spaces, and drainage problems in converted rooms and additions. Our technicians address the problems that 24/7 emergency HVAC repair in San Jose, CA is most frequently called for, including sensor faults, inverter issues, and drainage backups. As a Mitsubishi authorized dealer, we service ductless systems to manufacturer specification.Heat Pump Emergency Repair
A heat pump failure hits differently than a standard AC breakdown because it leaves you without both cooling and heating at the same time. Our team diagnoses reversing valve failures, refrigerant issues, and defrost control problems that are common causes of sudden heat pump shutdowns. For homeowners in the Bay Area who rely on one system across all seasons, getting emergency service right the first time matters, and that is what we deliver.Water-Cooled System Repair
Water-cooled systems operate under conditions that accelerate wear: high heat loads, long daily run times, and rooftop environments. When these systems go down in a restaurant kitchen or a commercial space, the pressure to restore operation is immediate. We diagnose and repair water-cooled units to manufacturer specification and California code, with the experience to handle the load demands that make these installations different from standard residential work.Whole-House Fan and Ventilation Repair
When a whole-house fan stops working during an overnight cool-down, the house holds heat longer and your AC compensates by running harder. We address motor failures, belt issues, shutter malfunctions, and control problems that stop ventilation systems from doing their job. If the repair does not make economic sense relative to the unit’s age, we will tell you and explain your options.Our Emergency HVAC RepairProcess
Every urgent service call follows the same structured sequence, whether it is a sudden system failure or a breakdown that has been building for weeks.
Same-Day Dispatch
We take your call around the clock and dispatch a technician to your San Jose area home as quickly as possible. You will know who is coming and approximately when before we arrive.
On-Site Diagnosis
Our technician inspects the full system, not just the component that stopped working. Refrigerant levels, electrical connections, ductwork pressure, airflow, and controls are all checked before a repair is recommended. You get a clear diagnosis and a firm price before any work begins.
Repair to Manufacturer Specification
Parts are installed to manufacturer specification and California code. Refrigerant handling, electrical work, and condensate are all addressed properly, not temporarily patched to get the system running until the next call.
Full System Test and Walkthrough
After the repair, we verify the system across its complete operating range. We check temperatures, pressures, and controls before we leave, and we walk you through what failed and what was done to correct it.
If you are uncertain which side of the line your system falls on, we will give you a straight answer. Many of the systems we evaluate still have useful life remaining, and we would rather confirm that than sell a replacement that is not yet warranted.
Repair or Replace? How to Tell
A failing HVAC system rarely shuts down without sending signals first. These are the indicators that continuing to repair no longer makes financial sense.
- The system is 12 to 15 years old. Beyond that threshold, efficiency has typically declined enough that a replacement recovers part of its cost through lower monthly bills.
- Repairs are forming a pattern.A single repair is routine maintenance. Two or three calls within a couple of seasons is the system indicating where it is headed, and those costs compound against the price of a new unit.
- Energy bills are rising with no change in usage.A struggling system draws more power to deliver less conditioning. If your habits have not changed but your bill has, the equipment is the variable.
- Rooms are never reaching the right temperature. Hot spots and uneven conditioning typically trace back to sizing, airflow, or duct problems that survive any repair until they are properly addressed.
- The system still runs on R-22. Refrigerant for older equipment is scarce and expensive. A significant leak on an R-22 system is frequently the point where replacement becomes the less costly option.
- Unusual noises or odors at startup. Grinding, banging, or a burnt smell when the system kicks on requires a technician to evaluate the unit, and in some cases the diagnosis is end of service life.
What Sets Our Emergency HVAC Service Apart
Ductwork and Insulation Handled by the Same Team
A repaired high-efficiency system connected to leaking ducts and a poorly insulated attic will never perform the way it should. San Jose Heating and Cooling handles ductwork and attic insulation in house, so the full system is addressed in one project rather than being split across multiple contractors and separate scheduling windows.Electrical Work Covered Under Our License
Some repairs and system upgrades require the main electrical panel to be evaluated or updated. Our California license covers that electrical work directly, so a panel that needs attention does not delay your repair while you wait on a separate electrician.
Certified Across Five Major Brands
We are Diamond Certified, a Bryant dealer, and certified with Carrier, Mitsubishi, Goodman, and Amana. Our technicians receive direct manufacturer training on the equipment they service, and they stay current as systems and technology evolve.
Licensed and Insured in California
Fully licensed in California (#1060833) with standard liability and workers’ compensation coverage, so qualified, accountable professionals are working in your home on every call.
Warranty Coverage on Every Repair
Most equipment we service carries manufacturer warranties of up to 10 years, and our own labor is backed by a 1-year workmanship warranty. If something comes up after we leave, you call us and we make it right.Financing Your Emergency Repair
An unexpected HVAC breakdown is rarely a planned expense. When you receive your invoice, you will have the option to apply for financing at that moment, so a repair or replacement you need can be spread out rather than paid all at once.
Ready to Restore Your Home Comfort?
Whether you are dealing with a complete system failure or an HVAC problem that has been getting worse, we are available around the clock to help. Fill out the form below and we will respond the same day, or call us directly to get a technician on the way.
Serving San Jose and the Greater Bay Area
Your home comfort starts close to home. San Jose Heating and Cooling provides 24/7 emergency HVAC repair in San Jose, CA and throughout Santa Clara County, with coverage 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 respond to an emergency HVAC call in San Jose?
We offer around-the-clock emergency service and aim to dispatch a technician the same day you call. For urgent situations where a system has failed completely, we prioritize getting someone to your home as quickly as possible across the Bay Area.
How do you determine what needs to be repaired?
Our technician inspects the full system on site, measuring airflow, checking refrigerant levels, testing electrical connections, and reviewing controls. You receive a clear diagnosis and a firm price before any work begins, not a range or an estimate that changes after the fact.
Do you offer financing for emergency repairs?
Yes. When your invoice is ready, you can apply for financing at that point, so a repair or system replacement that you were not expecting can be spread across manageable payments.
What warranty comes with an emergency repair?
Our labor is backed by a 1-year workmanship warranty. Parts and equipment installed during a repair are covered by manufacturer warranties of up to 10 years depending on the component.
Do you repair all HVAC brands?
We are certified with Bryant, Carrier, Mitsubishi, Goodman, and Amana, and we service all major brands. Our technicians are trained on the equipment they work on, and that training stays current as systems change.
Can you repair a ductless mini-split system after hours?
Yes. Our 24/7 emergency HVAC repair service in San Jose, CA covers ductless mini-split systems, including after-hours and weekend calls. As a Mitsubishi authorized dealer, we carry the diagnostic knowledge and parts access to address these systems properly.
Should I repair or replace my system after an emergency breakdown?
It depends on the age of the unit, the cost of the repair, and whether the failure reflects a larger pattern. We will walk you through both options honestly during the assessment. If the system has years of useful life remaining, we will say so rather than recommend a replacement you do not need yet.
Will my electrical panel need attention as part of the repair?
Occasionally, particularly in older homes. We check panel capacity during our on-site assessment, and because our license covers electrical work in California, we can address a panel issue as part of the same service call.
Do you offer emergency service outside of regular hours?
Yes. San Jose Heating and Cooling provides 24/7 emergency HVAC repair along with same-day appointments throughout the Bay Area. We are available evenings, weekends, and holidays.
Do you serve my neighborhood?
Most likely. We serve all of Santa Clara County, extend into the San Mateo Peninsula, and cover parts of Alameda and Contra Costa Counties, including up to Vallejo. Reach out and we will confirm your area.