Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateFast, Reliable Furnace Repair Across Santa Clara
Furnace repair in Santa Clara typically costs $150 – $700, and most repairs we handle are done the same day we’re called. That range covers everything from a quick ignitor swap to a blower motor replacement. If your heat is out on a cold Santa Clara night, you want a company that picks up the phone and actually shows up. That’s us. Call (669) 800-4179 and a live person answers, 24 hours a day, every day of the year.
We’ve worked inside enough Santa Clara tract homes to know what we’re walking into before we open the furnace cabinet. Homes built here between the 1950s and 1970s have their own set of recurring problems: undersized galvanized duct runs, 100-amp electrical panels that weren’t designed for modern blower motors, and slab-ducted systems on the east side that hide air leaks under the concrete. A furnace repair here isn’t just swapping a part. It’s knowing what sits behind the part.
Why Cold Harbour Heating and Air San Jose Is Santa Clara’s Preferred Furnace Repair Company
We’ve been answering calls from Santa Clara homeowners since 2003. That’s a lot of no-heat nights, a lot of burners that won’t stay lit, and a lot of blower motors that gave up without warning. Santa Clara customers keep calling us back because we do something most HVAC companies won’t: we hand you a written price before any tool comes out, and that number doesn’t change at the door. No exceptions.
Every repair we complete comes with a written 365-Day Done Right Promise. If the repair fails within that full year, we come back and make it right at no charge. Not a verbal promise. Not a “trust us.” It’s on paper before the technician leaves your driveway.
Our technicians are background-checked and uniformed, and they’re trained on nine major residential brands, including Trane, Lennox, and Goodman. So the person who walks through your door in Santa Clara knows exactly what they’re looking at, whether it’s a 1990s Lennox or a newer Rheem unit. Victor Mancini, who leads our operation, makes sure every tech carries that written-guarantee standard on every single call.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air San Jose, serving Santa Clara since 2003.
Styles & brands we work with
Heating Repair in Santa Clara
Heating repair in Santa Clara homes means diagnosing why a furnace isn’t producing or distributing heat the way it should, then fixing the specific fault rather than guessing at it. In this city, the work often starts with a duct and panel reality check, because so many homes still run original galvanized ducts and 100-amp panels sized for a milder era. A $350 repair on a newer home can turn into a much bigger conversation on a 1960s rancher if the ductwork can’t handle the airflow a modern blower demands. Expect to pay $150 – $700 for a typical heating repair, parts and labor included.
Ignitor Replacement
An ignitor is the small ceramic piece that glows hot enough to light the gas in your furnace. When it cracks or burns out, your furnace runs the draft inducer but never actually fires. In Santa Clara’s older homes, we replace a lot of these on cold December mornings when furnaces have been idle since spring. Most ignitor replacements run $150 – $280, and we carry common replacement parts for Rheem, Lennox, and Goodman units on our trucks.
Blower Motor Repair
The blower motor is what pushes heated air through your ducts and into your rooms. In Santa Clara’s post-war tract homes, we often find blower motors working harder than they should because the original galvanized ducts are undersized or have too many hard bends. That extra strain shortens motor life. A blower motor repair or replacement typically runs $250 – $600 depending on the motor type and the access involved.
Boiler Repair in Santa Clara
Boiler repair in Santa Clara is less common than furnace work, but the homes that have boilers often have old ones. These are usually hydronic systems, meaning they heat water and circulate it through radiators or baseboards rather than blowing hot air. When a boiler in a Santa Clara home stops heating properly, the cause is usually a failed circulator pump, a stuck zone valve, or a gas valve that’s no longer opening reliably. Boiler repairs in this city typically run $150 – $700, with circulator pump replacements landing in the $300 – $550 range on most jobs.
Gas Valve Repair
A gas valve controls exactly how much fuel reaches your burners. If it’s sticking or failing to open, your boiler won’t fire even when the thermostat calls for heat. Gas valves are safety-critical components, and any work on them should be left to a trained professional. We diagnose the valve, verify gas pressures, and replace the part if it’s failed. Expect $200 – $500 for gas valve work on a Santa Clara boiler.
Circulator Pump Replacement
In a hydronic system, the circulator pump is what moves hot water from the boiler through your pipes and into your radiators. When it seizes or its impeller wears out, you’ll get cold radiators even though the boiler itself is running. This is one of the most common boiler failures we see in Santa Clara’s older homes. A replacement circulator pump usually runs $300 – $550, depending on the pump model and how accessible it is.
Trusted Brands We Service in Santa Clara
We service Trane, Lennox, and Goodman furnaces in Santa Clara homes every week, and our techs are also trained on Rheem, Carrier, Daikin, Bryant, York, and American Standard equipment as well. Because we work on these brands so often in this area, we keep the most common replacement parts stocked on our service vans. That means less waiting on a parts order and a better chance of same-day heat restoration. If your Santa Clara furnace has a part we don’t stock locally, our parts relationships get us what we need fast, often by the next business day.
Common Furnace Repair Problems We See in Santa Clara Homes
- Blower motor failures from high static pressure. Original galvanized supply ducts in Santa Clara’s 1950s-70s tract homes are frequently undersized for modern furnace airflow. The blower has to work against too much resistance, and that kills motors early.
- Breaker trips when the blower runs. Many older Santa Clara ranch homes still have 100-amp electrical panels. A newer furnace with an ECM blower can draw more on startup than the panel was ever designed to handle, even if the old furnace worked fine for decades.
- Uneven heat between rooms. Santa Clara homes with original single-zone systems often heat the living room fine while bedrooms stay cold. It isn’t always a thermostat problem; leaky or poorly sized duct runs are usually the real cause.
- Furnace short-cycling on cold mornings. Burners that fire, shut off, fire again, and shut off usually point to a flame sensor that’s coated with carbon or a gas valve that’s misbehaving. Both are repairable, and both are common in furnaces that have sat idle through Santa Clara’s long warm season.
On the east side, we were called to a 1960s rancher with a Goodman furnace that wouldn’t fire. Our tech found a failed blower motor capacitor and a heat exchanger that was borderline on a visual inspection. Because the home still had its original slab-ducted heating system, we discussed a full duct replacement before recommending a like-for-like swap, and installed a new capacitor to get heat back on that night. That’s the difference between a parts-swapper and a tech who understands how Santa Clara houses are actually built.
See the difference
Before
After
Before
After
Before
AfterPricing for Furnace Repair in Santa Clara, CA
Most furnace repairs in Santa Clara run $150 – $700. That’s the honest range, and the specific number depends on what’s failed and how much access your particular home allows. A simple ignitor replacement lands at the low end. A blower motor or gas valve lands in the middle. A heat exchanger diagnosis, even when it’s repairable, trends toward the upper end because of the labor involved in access and inspection.
Here’s the line-item breakdown:
| Repair Type | Typical Cost in Santa Clara |
|---|---|
| Furnace Repair | $150 – $700 |
| Heating Repair | $150 – $700 |
| Boiler Repair | $150 – $700 |
Every job starts with a written price before the work begins. No deposits, no surprise adjustments when the tech is packing up. And if the repair fails within 365 days, we return and correct it at no charge, because that’s The Kingswell Way: say the price before the work, show up in the window given, leave the place cleaner than you found it, put the guarantee in writing, and come back if it fails. Call (669) 800-4179 for a free estimate. We’ll give you a straight number.
We Also Serve Cities Near Santa Clara
Our Furnace Repair in Santa Clara crews also cover homes in Sunnyvale, San Jose, Campbell, and Cupertino. If you’re in one of those neighboring communities and your heat is acting up, the same team, the same written guarantee, and the same phone number apply. Call us and we’ll get a tech headed your way.
Serving Santa Clara, CA - Our Local Coverage Area
We’re based in the Santa Clara area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Furnace Repair in Santa Clara
Because the home still has a 100-amp electrical panel that was sized for a furnace with a less power-hungry blower motor. When a newer furnace with an ECM blower starts up, it draws more current than the aging panel and breakers were designed to handle, so the breaker trips. This is very common in Santa Clara’s post-war ranch homes. The fix is sometimes a dedicated circuit, sometimes a panel upgrade. We’ll diagnose it and tell you exactly what’s needed before any work begins. Call (669) 800-4179 and we’ll take a look.
The ductwork is undersized for modern furnace airflow, or it’s leaking, or both. Original galvanized ducts installed in the 1950s through 1970s were designed for furnaces that moved less air at lower static pressures. When a newer, more powerful furnace pushes air through those same ducts, the air takes the path of least resistance, so some rooms get plenty of heat and others stay cold. Duct sealing or targeted replacement usually solves it. Our techs check airflow measurements in every room before recommending a repair, so you’re not paying for guesswork.
Sometimes yes, but often not without consequences. A like-for-like swap in a Santa Clara home with original galvanized ducts and a 100-amp panel can leave you with a new furnace that trips breakers, runs loudly, or heats unevenly, because the surrounding infrastructure was never designed for the new unit’s requirements. Before we recommend any replacement, we verify the existing ductwork and electrical panel can actually support the new system. If they can’t, we’ll tell you plainly and give you options that work. That’s the information-gain reality check most pages won’t give you.
Yes. When a furnace fires and then shuts down after a few seconds, the usual culprits are a dirty or failed flame sensor, a failing gas valve, or a draft inducer that isn’t proving proper airflow. In older Santa Clara furnaces that sit idle through the long mild season, carbon buildup on the flame sensor is especially common on the first cold day you call for heat. A flame sensor cleaning or replacement runs $150 – $250 on most units. Gas valve work runs higher. Call (669) 800-4179 and we’ll pinpoint it same day.
Santa Clara enforces California’s Title 24 energy standards, which means any new furnace installed here must meet minimum efficiency requirements that older units didn’t have to meet. For repairs, Title 24 doesn’t force you to upgrade your existing furnace, but certain repairs that expose significant duct leakage may trigger duct sealing requirements if you’re already doing a full system replacement. Our techs know the local code path and will tell you up front what applies to your specific job. We handle the paperwork and permitting requirements so you don’t have to navigate City of Santa Clara rules alone.
Contact Cold Harbour Heating and Air San Jose for Furnace Repair in Santa Clara
If your furnace is acting up in Santa Clara, don’t wait until it quits entirely. Call (669) 800-4179 and a live person answers, any hour, any day. We’ll schedule a specific arrival window, send a background-checked tech who knows Santa Clara homes, and hand you a written price before any work starts. Every repair carries the 365-Day Done Right Promise. If it fails within a year, we come back and fix it free. That’s the guarantee Victor Mancini built this company on. Call now for a free estimate.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air San Jose, serving Santa Clara since 2003.