Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Fast, Reliable Gas Fireplace Repair Across Los Gatos
Gas fireplace repair in Los Gatos typically runs $185 to $385 for common fixes like thermopile replacement, burner cleaning, or venting corrections, with most jobs completed in one visit. If your fireplace won’t ignite, produces a weak flame, or smells like gas when off, the problem is usually the thermopile, the pilot assembly, or a blocked vent. Our Gas Fireplace Repair technicians work on systems throughout Los Gatos weekly, from downtown Craftsman homes to hillside estates off Kennedy Road. Call (336) 863-3889 and we’ll give you a written price before any work begins.
We’ve spent two decades learning how Los Gatos homes behave differently. The marine air, the 30-year-old post-quake chimneys, the multi-fireplace hillside properties: these aren’t theoretical concerns. They’re what we see on service calls every week.
Why Alcott Chimney Sweep Is Los Gatos’s Preferred Gas Fireplace Repair Company
Ruben Castellano has made his reputation in Los Gatos by showing work rather than talking about it. Every gas fireplace repair we do comes with a written price before we start, a written guarantee on the repair, and a free return visit if anything fails within the coverage period. That’s not a promotion. It’s how we’ve operated since 2002.
We also know that opening the door to a repair technician is a real decision, not a reflex. So every Alcott technician who comes to your Los Gatos home is background-checked and identity-verified under what we call the Threshold Standard. Before we arrive, you’ll know the technician’s name and see their photo. At the door, they’ll show a photo ID badge. No exceptions, ever. That’s the same standard for a 20-minute pilot light fix in a downtown condo or a full venting overhaul on a hillside property.
Location matters on these calls. Los Gatos sits at the base of the Santa Cruz Mountains, and homes here need different attention than a flatland ranch in San Jose. We know the difference. We know which hillside neighborhoods require spark arrestor verification under fire code, and we know what marine-air creosote does to a converted gas insert over one winter.
Our Gas Fireplace Repair Services in Los Gatos
Gas Fireplace and Insert Venting Inspection
This is the most under-ordered service we provide in Los Gatos, and the one that catches the most genuine hazards. When a wood-burning fireplace was converted to gas, the venting often still contains creosote glaze from its prior life. That glaze restricts draft, and a gas appliance with restricted draft burns incompletely. We inspect the full vent run with a camera, and we show you exactly what we find before recommending anything.

Level 2 Chimney Inspection for Multiple-Flue Properties
Many Los Gatos homes, especially the larger custom builds in the hills above town, have two or three fireplaces on separate flues. A Level 2 inspection covers the accessible interior and exterior of each flue, including the attic and chase areas. After the Loma Prieta earthquake and the rebuilds that followed, we’re now seeing early-1990s masonry chimneys with spalling brick, cracked crowns, and failed flashing that lets damp air into the flue. That damp air corrodes gas liners and leads to delayed ignition.

Spark Arrestor and Chimney Cap Compliance Check
If your Los Gatos home sits in the High Fire Hazard Severity Zone above town, California code requires a functioning spark arrestor on every wood-burning chimney. The practical problem: many homeowners don’t know their arrestor is missing, collapsed, or corroded until an inspection flags it. We check this on every hillside call in Los Gatos, whether you booked us for a gas fireplace repair or a standard sweep. It’s a fire-code item, and it’s also a simple fix when caught early. If yours is missing, we’ll show you the gap and install an arrestor with a code-compliant mesh.

Burner, Pilot, and Thermopile Service
Most “fireplace won’t light” calls in Los Gatos come down to three components: the pilot assembly, the thermopile, or the burner. We stock the common replacement parts for Olympia Chimney and Famco systems, which covers a large share of the gas inserts we see in Los Gatos homes. If your unit is older and the parts are discontinued, we’ll tell you plainly and walk you through your options rather than selling you a patch that fails in six months.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Los Gatos
We install and service gas fireplace systems from professional trade brands, including Olympia Chimney, Famco, and Copperfield. These are the manufacturers chimney professionals specify, not box-store substitutes. For Los Gatos customers with older inserts, we can usually source replacement components within a few days through our Bay Area supply network. If you want a complete insert replacement, we carry DuraFlex liner systems for relining and will give you a side-by-side price comparison before you commit to anything.
Common Gas Fireplace Repair Problems We See in Los Gatos Homes
- Creosote-blocked venting on converted gas inserts. The fireplace spent decades burning wood, then someone dropped in a gas log set without addressing the existing creosote glaze. The result is poor draft, delayed ignition, and soot staining on the glass. We remove the glaze with a rotary head and verify the vent with a camera.
- Post-Loma Prieta mortar and crown failure. Chimneys rebuilt in the early 1990s after the 1989 earthquake are now 30+ years old. We’re seeing cracked crowns, spalling brick, and failed flashing that lets damp marine air into the flue, which corrodes gas liners and causes rust streaks inside the firebox.
- Missing or collapsed spark arrestors on hillside homes. In the High Fire Hazard Severity Zone above downtown Los Gatos, this is a compliance issue as much as a repair issue. Wind, rain, and age destroy arrestor mesh. Homeowners typically don’t know until we flag it.
- Thermopile and pilot failures on high-use units. Los Gatos winter nights drop into the mid-30s, and Spare the Air days push people toward their gas fireplaces as a primary heat source. That heavy usage wears out thermopiles faster than seasonal use would. The symptom is a fireplace that lights and then shuts off within minutes.
Pricing for Gas Fireplace Repair in Los Gatos, CA
Here’s straight talk on what things cost in Los Gatos. A standard diagnostic visit, including camera inspection of the vent, runs $119 to $180. Common repairs like thermopile replacement, pilot assembly cleaning, or burner servicing typically fall between $185 and $385. A full venting inspection with camera documentation runs $225 to $375 depending on flue height and accessibility. If you need a liner section replaced, expect $800 to $1,600 depending on the run length and material. Every job includes a written price before work starts, a written guarantee on the repair, and a free return visit if the repair fails within the coverage period. Call (336) 863-3889 for an exact quote, and we can often give you a firm range over the phone once you describe what’s happening.
We Also Serve Cities Near Los Gatos
In addition to our work across Los Gatos, we regularly serve homes in Saratoga, Campbell, Cupertino, and Santa Clara. Many of our Los Gatos hillside customers also have family or rental properties in these nearby cities, and we’re glad to coordinate multi-property service visits.
Serving Los Gatos, CA - Our Local Coverage Area
We’re based in the Los Gatos 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 – Gas Fireplace Repair in Los Gatos
Because the flue still carries whatever was in it before the conversion, and that’s usually creosote glaze from years of wood burning. Creosote blocks draft, and a gas appliance with blocked draft produces carbon monoxide and soot. An annual inspection also catches corrosion in the liner from damp marine air, especially in Los Gatos where winter humidity funnels through the mountain passes. Call (336) 863-3889 to schedule an inspection with camera documentation, and we’ll show you exactly what’s in your flue.
Yes. If your home is in the zone, we verify spark arrestor condition and mesh compliance as part of every service call, not just when you think it needs repair. Missing or corroded arrestors are common, and they’re a code violation. We’ll flag it and quote the fix on the spot. Call (336) 863-3889 and we’ll check your property address against the zone map.
Yes. Chimneys rebuilt in the early 1990s are now deep into their service life, and the damage we see often starts inside the flue where you can’t see it from the ground. A Level 2 inspection with a camera is the right call for any Los Gatos chimney that’s 30+ years old, especially if you’ve never had one done. Call (336) 863-3889 and we’ll walk you through what the inspection covers before you book.
Yes, each flue gets its own inspection. On multi-flue Los Gatos properties, we often find one flue that’s clean, one with creosote, and one with a cracked crown or failed flashing. They don’t age evenly. We inspect each one and give you a single written report showing what we found, with photos.
Watch for soot buildup on the glass, a flame that burns yellow or orange instead of blue, or a gas odor when the unit is off. These are signs of incomplete combustion or a slow gas leak. If you notice any of them, call (336) 863-3889. We’ll get a technician to your Los Gatos home and check the burner, vent, and gas connections.
Call (336) 863-3889 today for a free estimate on gas fireplace repair in Los Gatos. A live person answers, we’ll give you a written price before any work starts, and you’ll know exactly who’s coming to your door before we arrive.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, serving the Los Gatos area since 2002.





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