Complete heating services for homes and businesses near you
Full-Service Heating Services In San Jose, California
At San Jose Plumbing and Air Pros, we offer complete heating services including installation, repair, and maintenance for all types of systems. Our team ensures your heating system runs efficiently and reliably during colder months, helping you stay comfortable while reducing energy costs. From routine maintenance to full system upgrades, we’ve got you covered.
Heating Services in San Jose, California by Your Trusted Local HVAC Pros
We are your local San Jose Plumbing and Air Pros, and heating is a big part of what we do from late fall through early spring. Our winters here are mild compared to other parts of the country, but a forty degree morning with no heat is still uncomfortable enough that nobody wants to sit through it. When something goes wrong with your furnace, boiler, or heat pump, you want a real local team that picks up the phone, gives you a straight answer about when they will arrive, and shows up ready to actually solve the problem.
We have worked on heating systems across every part of San Jose. Older homes in Naglee Park and the Rose Garden with vintage cast iron boilers. Mid century ranches in Cambrian Park with attic furnaces. Two story builds in Almaden where the upstairs always runs cold. Condos near Santana Row with limited mechanical space. Newer subdivisions out toward Evergreen and North San Jose with modern high efficiency equipment. We know how San Jose homes are heated and how to handle whatever your system needs.
We are the trusted local heating experts in San Jose, and we would be glad to take care of your heating system the way we would take care of our own.
Our Heating Services in San Jose, California
Here is exactly what we handle for San Jose homeowners across every heating need, from a single quick repair to a full system replacement.
Furnace Repair
When your furnace fails on a cold San Jose morning, you do not want to wait three days for a service appointment. We respond fast, diagnose carefully, and get your heating system running again the right way. After this many winters in the South Bay, there are very few breakdowns we have not seen, from older atmospheric units still running in mid century homes to modern condensing furnaces with communicating thermostats.
Common Problems We Fix
- Furnace blowing cold air instead of warm
- Burner that lights then shuts off within seconds
- Loud booming sound when the furnace ignites
- Furnace that short cycles on and off repeatedly
- Pilot light or igniter failures that keep returning
- Dirty flame sensor causing nuisance shutoffs
- Yellow flame instead of a clean blue burn
- Thermostat that will not communicate with the equipment
- Loud squealing or grinding from the blower compartment
The right repair starts with a real diagnostic, not a parts guess. The same symptom often has several different possible causes, and figuring out which one you are dealing with is what separates a lasting fix from a callback next week. We check gas pressure at the burner, electrical readings on the control board, the condition of the flame sensor and igniter, the heat exchanger for any signs of cracking, and combustion analysis to confirm the unit is burning cleanly. Safety always comes first because furnaces produce combustion gases that have to be handled correctly. Once we know what failed and why, we explain it in plain English and verify the system is operating safely before we leave.
Furnace Installation
Putting in a new furnace is the kind of project that sets your home comfort for the next decade and a half. Get the sizing, ductwork, and installation right and you have quiet, even warmth on every cold morning. Get it wrong and you fight comfort issues and energy waste for the life of the equipment. We approach every furnace installation in San Jose with the same careful process because the long term performance is set the day it goes in.
Common Reasons Homeowners Choose Installation
- Existing furnace is fifteen plus years old and on its last legs
- Repair costs adding up faster than the unit is worth
- Cracked heat exchanger that makes repair no longer reasonable
- Some rooms stay cold while others are toasty
- Gas bills creeping up year after year with no other changes
- Carbon monoxide concerns from an aging atmospheric unit
- Recent remodel that the old furnace was never sized for
- Plans for a high efficiency upgrade with better filtration
- Conversion to a heat pump for combined heating and cooling
Our installation process starts with a real heat loss calculation, not a guess based on the old unit size. Oversized furnaces are a classic mistake because installers assume the original size was correct when in many cases it was already too large. We size to actual heat loss so the new unit modulates properly and delivers even comfort across the home. Installation includes safely disconnecting and removing the old furnace, setting the new unit level and secure, connecting gas with proper sizing, sizing and installing venting correctly, sealing duct connections, and performing a full combustion analysis before the system goes into service.
Boiler Repair and Installation
Boilers are less common than furnaces in San Jose, but plenty of older homes around the Rose Garden, Naglee Park, and the foothills still run on hydronic heat. When a boiler is working well, it is one of the most comfortable, even, quiet sources of heat you can have. When it goes down on a cold morning, you feel it the moment you step out of bed. We work on cast iron, condensing, and combi systems that handle both heating and domestic hot water.
Common Problems We Fix
- Boiler that will not fire up on a cold morning
- Some radiators stay hot while others never get warm
- Knocking or banging sounds when the system runs
- Pressure gauge reading too high or too low
- Visible water leaks at the boiler or near valves
- Expansion tank that has lost its charge
- Circulator pump that hums but does not move water
- Combi boiler losing hot water in the middle of a shower
- Older atmospheric unit ready for high efficiency replacement
Boilers reward technicians who actually understand them. We check pressure and temperature readings, inspect for corrosion or leaks, test safety controls, verify the expansion tank charge, check circulator operation, bleed air where needed, and confirm gas pressure at the burner. For new boiler installation, we run a real heat loss calculation, size the new unit to your actual load, and pipe it correctly so the system runs efficiently and lasts. A properly sized modern boiler can dramatically improve comfort and lower gas usage in older San Jose homes.
Heat Pump Installation and Repair
Heat pumps have become a smart heating choice for many San Jose homes. Our mild winters mean heat pumps run efficiently here year round, and one system handles both heating and cooling from a single unit. Whether you are replacing an aging furnace and AC together with a heat pump, installing a ductless mini split heat pump in a home without ductwork, or repairing an existing unit, we handle the full range.
Common Problems We Fix
- Heat pump running but not producing real warmth
- Outdoor unit that will not start in heating mode
- Reversing valve failures causing the unit to stay in one mode
- Ice buildup on the outdoor unit during cooler weather
- Auxiliary heat that kicks on far too often
- Strange noises from the outdoor condenser
- Refrigerant pressures out of normal range
- Thermostat that cannot reliably control both heating and cooling
- Aging system ready for replacement with a modern variable speed unit
Heat pump work uses many of the same skills as AC repair plus the additional knowledge of how the system behaves in heating mode. We check refrigerant performance in both directions, verify defrost cycles operate correctly, inspect the reversing valve, and confirm electrical components are healthy. For installations we run a real load calculation, size the system properly, and commission it with verified airflow and refrigerant performance. Done right, a modern heat pump is one of the most efficient and comfortable heating systems available for San Jose homes.
If you smell gas or suspect a gas leak, go outside immediately and call 911 – this is a serious emergency that needs urgent attention from the gas company.
Contact us today for any heating service in San Jose.
Why San Jose Homeowners Choose San Jose Plumbing and Air Pros
Plenty of companies will answer your call. Far fewer take the time to diagnose carefully, recommend honestly, and install with the kind of care that makes a real difference for years.
Real Diagnostics Instead of Part Swap Guesswork
We had a customer near Willow Glen who had two other companies out before us. The first one replaced the igniter. The second one replaced the flame sensor. Neither fixed the problem and the system kept shutting itself down within days. We came out, ran a proper diagnostic, and found the inducer motor was failing in a way that triggered the pressure switch intermittently. We replaced the inducer, the system ran clean the rest of the winter, and the homeowner has been with us ever since. Real diagnostics save real money.
Deep Local Experience Across San Jose Homes
We have worked on heating systems in essentially every kind of home this city has. Older Naglee Park bungalows with vintage equipment. Mid century ranches in Cambrian Park with attic furnaces. The Almaden two stories where every service call involves the attic. The Rose Garden homes that still run hydronic heat. Condos near Santana Row. Newer Evergreen builds with modern variable speed equipment. We walk in already knowing what we are likely to find.
Safety First on Every Single Call
Furnaces and boilers produce combustion gases and they sit inside your home. Safety is not optional. We check heat exchanger condition, test for carbon monoxide at supply registers, verify proper venting, and confirm combustion is clean on every service call. Most of the time everything is fine, but the few times it is not, finding the issue early protects the household.
Honest Repair or Replace Recommendations
Not every old furnace or boiler needs replacement, and not every repair is worth doing on a system at the end of its life. We tell you straight up where your equipment stands, what the repair would involve, and what a replacement would mean for comfort and gas bills. The decision stays with you, and we do not push replacement on something with real life left.
Same Day Response When the Cold Hits
When temperatures are in the forties at night and the heat is dead, waiting three days is not acceptable. We staff our team and stock our trucks specifically to handle same day calls during cold weather. Common parts like igniters, flame sensors, circulators, capacitors, and control boards are on the truck so most repairs are completed in a single visit.
Clean Workmanship That Holds Up
How an installation looks tells you a lot about how it will perform over the years. Sloppy venting, poorly sealed duct connections, unsupported gas lines. These are the things that fail down the road and force expensive callbacks. We take pride in installs that are clean enough to photograph, with neat gas piping, properly supported venting, and accessible service points.
Our Service Process
Step One: An Honest Conversation When You Call
When you reach out, you talk to someone who actually knows the work. We ask the right questions, get a clear picture of the situation, and schedule the visit that fits your day. For genuine emergencies during cold weather we move as fast as possible.
Step Two: A Careful On Site Evaluation
When we arrive, we listen first because you know your home better than anyone. Then we measure and test. Gas pressure, electrical readings, combustion analysis, system pressures, and visual inspection of every key component. We do not guess and we do not skip steps.
Step Three: A Clear Plan Before Any Work Begins
Before we pick up a tool, we walk you through what we found and what we recommend. For repairs that means showing you the failed component and explaining the cause. For installations that means clear options laid out without pressure.
Step Four: Quality Workmanship and Full Verification
We do the work the right way and verify the whole system is operating as it should. Combustion analysis, temperature rise across the heat exchanger, proper amp draw, and clean cycling. Before we leave we walk you through what we did.
Service Area in and Around San Jose, California
We provide heating services across all of San Jose and the surrounding South Bay communities. That includes Willow Glen, Cambrian Park, Almaden Valley, Berryessa, Evergreen, Rose Garden, Naglee Park, Japantown, North San Jose, Alum Rock, Blossom Valley, Santa Teresa, Silver Creek, West San Jose, downtown San Jose, and the neighborhoods around Santana Row and the Alameda. We also cover nearby cities including Campbell, Santa Clara, Cupertino, Saratoga, Los Gatos, Milpitas, Sunnyvale, and Morgan Hill.
Whether you are in an older home with vintage hydronic heat or a newer build with modern variable speed equipment, we have worked on a system like yours many times. If you are unsure whether we cover your area, give us a call.
Professional Heating Repair vs DIY Attempts
Some heating tasks are reasonable for a handy homeowner. Changing the filter, vacuuming around the unit, clearing debris from the outdoor exhaust on a high efficiency furnace, or resetting a tripped breaker once to see if it holds. Those are fine. But real heating repair gets into territory where DIY almost always costs more than it saves, and in some cases creates genuine safety risks.
Furnaces and boilers involve natural gas, high voltage electrical, and combustion that has to be vented correctly. Gas pressure has to be set at the burner using a manometer, not a guess. Combustion has to be verified with an analyzer to make sure carbon monoxide levels are within proper limits. The flame sensor, igniter, and gas valve all have to work together correctly or the system either will not run at all or runs unsafely. Misdiagnosed and improperly repaired equipment can produce carbon monoxide that builds up in the home over time. That is not the kind of mistake you find out about until it is too late.
If you smell gas or suspect a gas leak, go outside immediately and call 911 – this is a serious emergency that needs urgent attention from the gas company. Beyond gas, the diagnostic side of heating repair is unforgiving. The same symptom often has several different possible causes. A furnace that lights and shuts off could be a dirty flame sensor, a failing inducer motor, a blocked vent, a stuck pressure switch, a faulty control board, or a closing safety limit. A boiler that will not heat could be a circulator, an expansion tank, a zone valve, a control board, or a low water cutoff. Without the right tools and the experience to interpret what they show, the DIY route turns into a series of guesses where parts get swapped that did not need to be swapped while the real problem keeps coming back.
Professional service brings the right tools and the years of pattern recognition that come from doing this work full time. Combustion analyzers, manometers, refrigerant gauges for heat pumps, and the equipment to verify performance properly. Calling a pro is almost always the path that saves time, money, and frustration.
Plumbing, Heating & Air Conditioning Services
Complete Home Comfort Solutions for Your Entire Property
From plumbing systems and water lines to heating and air conditioning units, we have the tools and expertise to handle any challenge your home or business may face. Our team delivers reliable, high-quality service to keep everything running smoothly year-round.
We Deliver Expert Results
Don’t settle for temporary fixes. We combine years of hands-on experience with modern technology to deliver long-lasting plumbing, heating, and cooling solutions. Our team values your time, your comfort, and your property.
- Plumbing Repairs & Installations
- Heating System Repair & Maintenance
- Air Conditioning Services
- Leak Detection & Pipe Repair
- Drain Cleaning & Unclogging
- HVAC Diagnostics & Tune-Ups
Frequently Asked Questions
How fast can you get to my San Jose home when my heat quits?
During cold weather we prioritize same day calls because we know what it feels like to have a cold house. Most San Jose neighborhoods we can reach within a few hours of your call. Tell us what is happening and we will give you a realistic arrival window on the spot.
How do I know if my furnace needs repair or full replacement?
Age, repair history, and condition of the heat exchanger are the big factors. If your system is under twelve years old and has not needed many repairs, repair is almost always the right call. If it is over fifteen years old or shows heat exchanger issues, replacement starts making more sense.
How long should a new furnace or boiler last?
A quality furnace, properly sized and installed, should comfortably last fifteen to twenty years in our climate. Cast iron boilers can run thirty plus years. Modern condensing boilers and high efficiency furnaces typically last fifteen to twenty years with proper maintenance.
Is a heat pump worth considering instead of a traditional furnace?
For many San Jose homes, yes. A heat pump gives you both heating and cooling from a single system, and our mild winters mean heat pumps work efficiently year round. If your AC is also getting old, replacing both at once with a heat pump can be a smart move.
Why is my furnace blowing cold air?
Common causes include a failed igniter or flame sensor, a thermostat issue, a tripped safety limit, a blocked condensate line on high efficiency units, or a problem with the gas supply. Each has a different fix, which is why proper diagnosis matters.
Should I be worried about carbon monoxide?
It is worth being aware. CO is produced any time fuel is burned, and modern heating equipment is designed to vent it safely outside. When venting is compromised or the heat exchanger develops a crack, CO can enter the home. Working CO detectors on every level are essential.
Can a dirty filter actually cause a furnace breakdown?
Yes, more often than people realize. A clogged filter restricts airflow, which causes the heat exchanger to overheat, which trips the safety limit and shuts the system down. Repeated overheating shortens equipment life. Changing your filter on a reasonable schedule is the single cheapest thing you can do to extend furnace life.
How often should heating equipment be serviced?
Annual maintenance before the heating season catches most issues before they turn into breakdowns. A proper service includes combustion analysis, safety control testing, burner cleaning, flame sensor cleaning, and airflow verification. Homeowners who maintain consistently get more years from their equipment.
Do I need a permit for furnace or boiler installation in San Jose?
Yes, San Jose requires permits for new heating installations and equipment replacement. We pull the necessary permits as part of our installation process and handle the inspection coordination, so you do not have to chase paperwork.
How do I find a reliable heating company near me in San Jose?
Look for a real local team with years of experience across San Jose homes, clear communication, honest diagnostics, and a willingness to walk through the process with you. Reviews from your actual neighborhood matter more than star counts alone. A good HVAC team will diagnose carefully, prioritize safety, and treat your home with respect.
Why does my furnace smell when it first runs in the fall?
Usually it is dust that has settled on the heat exchanger and burner components over the summer burning off during the first cycles. That smell typically clears within a few hours. If it persists or smells like something other than dust, get it checked out.
Can my heating and cooling use the same equipment?
Yes, this is the most common setup. A furnace with a paired indoor AC coil shares the blower for both seasons. A heat pump does both heating and cooling from a single system. We can explain which setup makes the most sense for your specific home.
Warm, Comfortable Winters in San Jose
When your heating system needs attention, you need a real local team that answers the phone, shows up when they say they will, and handles the work the right way. That is what we do. Years of heating work across every neighborhood in San Jose, honest diagnostics, careful installation, clean repair work, and safety on every call.
We are your local San Jose Plumbing and Air Pros, and we would be glad to take care of whatever your heating system needs, whether that is a quick repair, a major installation, or anything in between.
Reach out to us for assistance and we will take it from there.
Zip codes we serve: 95002, 95008, 95013, 95014, 95020, 95030, 95032, 95035, 95037, 95050, 95051, 95054, 95070, 95110, 95111, 95112, 95113, 95116, 95117, 95118, 95119, 95120, 95121, 95122, 95123, 95124, 95125, 95126, 95127, 95128, 95129, 95130, 95131, 95132, 95133, 95134, 95135, 95136, 95138, 95139, 95140, 95148
