Furnace Installation & Replacement in San Jose, CA
Gas furnaces, electric furnaces, heat pumps, and dual-fuel systems sized, installed, and replaced for homes across Santa Clara County and the greater Bay Area.
- Most Installs Completed in 1-2 Days
- Financing Available
- Up to 10-Year Manufacturer Warranty + 1 Year Labor
- Licensed & Insured in CA: #1060833
Fully Certified HVAC Company
Years of experience
Furnace Installation and Replacement in a Bay Area Home Is Not a One-Size Job
Homes here were built across seventy years of varying codes, different duct configurations, and aging electrical infrastructure. A 1960s ranch in Willow Glen, a two-story in Almaden, a Peninsula home with an addition that never received proper return air vents, each one calls for a different solution, and the equipment is only one piece of the answer.
San Jose Heating and Cooling has spent 20+ years installing and replacing heating systems across Santa Clara County and the surrounding Bay Area. Before recommending any furnace, we evaluate what the home actually requires: square footage and floor plan, the current state of your ductwork, whether your gas supply or electrical panel can support the new system, and how much heat you are losing through a poorly insulated attic. That is how a new furnace installation ends up running reliably and efficiently rather than struggling through its first winter.
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.
CR
Systems We Install and Replace
Gas Furnaces
For homes already connected to a natural gas line, a gas furnace remains the most dependable and cost-effective way to heat the entire house. San Jose Heating and Cooling sizes every unit to your home rather than simply duplicating whatever was installed before, since older furnaces were frequently oversized and duct layouts may have shifted over time. Proper sizing produces consistent temperatures throughout the house, quieter operation, and a heat exchanger that is not overworking itself toward premature failure.Electric Furnaces
Electric furnaces are a practical option for homes without a natural gas connection or where running a new gas line is not feasible. They have fewer mechanical components, require less maintenance than gas alternatives, and are compatible with the solar energy systems that many Bay Area homeowners already have in place. We assess your home’s electrical capacity as part of the installation process to ensure the system can run without stressing your panel.
Heat Pump Systems
A heat pump functions as both a heating and cooling system within a single unit. In winter it draws heat from outdoor air and moves it inside, and in summer it reverses direction to remove heat from your home. For homeowners whose furnace and air conditioner are both nearing the end of their service life, replacing both with one heat pump simplifies the system and reduces long-term maintenance. The Bay Area’s mild winters are well-suited to heat pump performance. If you are comparing a furnace replacement against a heat pump, we will walk through the efficiency differences, upfront investment, and how each option behaves in your specific home. You can also read more about our heat pump services.Dual-Fuel Systems
A dual-fuel system pairs a heat pump with a gas furnace backup. The heat pump handles heating during mild weather when it operates most efficiently, and the furnace takes over when outdoor temperatures drop low enough that the heat pump alone would struggle to keep up. For homeowners who want maximum efficiency without sacrificing comfort on the coldest nights, this combination delivers both. We assess your home’s existing gas and electrical setup to determine whether dual-fuel is the right fit before recommending it.Attic Insulation
Not every home requires a complete heating overhaul. In many Bay Area homes, heat escaping through an under-insulated attic is the real reason the system struggles to keep up. When it fits the situation, we will say so. Sometimes the lower-cost path leads to a noticeably more comfortable home.Our Furnace Installation Process
Every furnace installation follows the same sequence, whether it is a direct replacement or a first-time heating system.
In-Home Assessment
We measure the home, inspect the existing ductwork and equipment, and review your gas supply or electrical panel capacity before recommending anything. You receive a defined scope and a firm price, not a range.
Equipment Selection
San Jose Heating and Cooling is certified across Bryant, Carrier, Mitsubishi, Goodman, and Amana, so our recommendation is based on what genuinely fits your home and budget rather than whatever brand we happen to stock.
Removal and Preparation
The old furnace is disconnected and removed from the property. If duct sealing, attic insulation, or a panel upgrade is part of the project, that work is completed before the new system is put in place.
Installation to Spec and Code
Gas lines, venting, condensate drainage, electrical connections, and airflow are all installed to manufacturer specification and California code, then fully commissioned before we move to testing.
Testing and Walkthrough
We verify the furnace across its complete operating range, configure your thermostat, and walk you through how the system runs before we leave the job site.
If you are uncertain which side of the line you are on, San Jose Heating and Cooling will give you an honest answer. Many of the systems we inspect still have useful years remaining, and we would rather tell you that than sell you a furnace you do not need. If your system can be repaired, see our heating repair and maintenance services.
Repair or Replace? How to Tell
A furnace rarely fails without warning. These are the signals that continuing to repair no longer makes financial sense.
- The system is 15 to 20 years old.Beyond that range, efficiency has typically declined enough that a furnace replacement starts paying part of its own cost back through reduced energy bills.
- Repairs are becoming a pattern.One repair is routine maintenance. Two or three within the same heating season is a system signaling where it is headed, and those costs accumulate against the price of a new unit.
- Bills rise while usage stays the same.A failing furnace draws more energy to deliver less heat. If your habits have not changed but your gas or electric bill has, the equipment is the variable.
- Rooms stay cold no matter how long the furnace runs.Uneven heating usually traces back to sizing problems, duct leaks, or airflow restrictions — issues that follow you through every repair until they are actually resolved.
- The heat exchanger is cracked.A cracked heat exchanger is a carbon monoxide risk. This is not a repair situation. It is a replacement situation, and it should be addressed immediately.
- Noises or smells that were not there before. Banging, rattling, or a burning smell at startup needs a technician to evaluate, and sometimes the diagnosis is end of service life.
What Sets Our Furnace Installations Apart
Ductwork and Insulation Handled by the Same Team
A new high-efficiency furnace connected to leaking ducts and a poorly insulated attic will never perform the way it was designed to. San Jose Heating and Cooling handles ductwork and attic insulation in house, so the full heating system is addressed in a single project rather than split across multiple contractors and timelines.
Electrical Work Covered Under Our License
Some furnace installations, particularly electric models or dual-fuel systems, require a panel upgrade to carry the new load. Our California license covers that electrical work, so a panel that is not ready does not delay your furnace installation while you wait on a separate electrician.
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 receive manufacturer training on the equipment they install and stay current as product lines evolve.
Licensed and Insured in California
Fully licensed in California (#1060833) with standard liability and workers’ compensation coverage, so qualified, accountable professionals are the ones working in your home.
Warranty Coverage on Every Install
Most equipment we install carries manufacturer warranties of up to 10 years, and our own workmanship is backed by a 1-year labor warranty. If something comes up after we leave, you call us and we take care of it.
Financing Your New Furnace
A furnace installation or replacement is a significant investment, and it is rarely one you planned for in advance. When you receive your invoice, you will have the option to apply for financing right then and there, so a heating upgrade you need can be spread out over time rather than paid all at once.
Ready for a Warmer, More Efficient Home?
Whether you are replacing an aging furnace or installing a heating system for the first time, 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 schedule your visit.
Serving San Jose and the Greater Bay Area
Your home comfort starts close to home. San Jose Heating and Cooling installs and replaces furnaces and heating systems for homeowners across 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 long does a furnace installation or replacement take?
Most furnace installations are completed within one to two days. Larger projects that also include ductwork repairs or attic insulation may take three to four days depending on scope.
How do you determine what size furnace my home needs?
San Jose Heating and Cooling measures the home and accounts for square footage, layout, duct condition, insulation levels, and local climate rather than simply matching the capacity of your previous unit. An oversized furnace short cycles, heats unevenly, and wears out faster, which is why the assessment comes before any recommendation.
Do you offer financing for a new furnace?
Yes. When you receive your invoice, you can apply for financing at that time, so a furnace replacement or installation fits within your budget.
What warranty comes with a new furnace installation?
Most equipment we install carries manufacturer warranties of up to 10 years, and all of our installation work is covered by a 1-year labor warranty.
Do you install all furnace brands?
San Jose Heating and Cooling is certified with Bryant, Carrier, Mitsubishi, Goodman, and Amana, and we service all major brands. When it is time to replace, we help you select the system that is the best fit for your home and budget.
Can you install a furnace in a home without existing ductwork?
A furnace needs ductwork to distribute heat, so a home without ducts has two paths. We can install new ductwork along with the furnace, since our team handles duct installation in house. Or, where running ducts is not practical, a ductless heat pump system can heat the home room by room without it. We will recommend the option that fits your home and budget.
Should I replace my furnace with a heat pump instead?
It depends on the age of your cooling system. A heat pump handles both heating and cooling in one unit, so if both your furnace and air conditioner are near the end of their service life, replacing them with a single heat pump is often the better long-term decision. If your air conditioner still has useful years remaining, a straight furnace replacement typically makes more sense. San Jose Heating and Cooling will walk you through both options during the assessment.
Will my electrical panel or gas line need to be upgraded?
Sometimes, particularly in older homes or when switching fuel types. We evaluate your gas supply and electrical panel capacity during the initial assessment, and because our license covers both trades, we can handle any necessary upgrades as part of the same project.
Do you offer emergency service?
Yes. San Jose Heating and Cooling offers 24/7 emergency service along with same-day appointments across the Bay Area.
Do you serve my area?
Most likely. We cover all of Santa Clara County, extend into the San Mateo Peninsula, and serve portions of Alameda and Contra Costa Counties, including up to Vallejo. Reach out and we will confirm your address.