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.
Before
After
Before
After
Before
AfterFast, Reliable Gas Fireplace Repair Across Kenmore
Gas fireplace repair in Kenmore usually runs $225 – $640 for most common issues, with millivolt valve replacement and full burner service landing in the $385 – $720 range depending on whether we’re dealing with corrosion that’s crept into the firebox or a straightforward pilot assembly swap. That’s the honest answer before we even ring your doorbell. Our Gas Fireplace Repair team covers all of Kenmore, from the low streets near the Sammamish River up to the northern slope toward 68th Avenue, and we schedule firmly: you’ll get a written price before any work starts, and the technician who shows up will be the exact person whose name and photo you received ahead of time.
If your gas logs won’t stay lit, the flame’s uneven, or you’re catching a faint gas smell after shutdown, call (336) 863-3889. A live person answers, day or night.
Why Alcott Chimney Sweep Is Kenmore’s Preferred Gas Fireplace Repair Company
Kenmore gives gas fireplaces a harder life than most of King County realizes. The city sits low, between Lake Washington and the Sammamish River, and that’s not just scenery. It means ground fog rolls through regularly, moisture hangs around longer, and the original 1950s-through-1970s brick chimneys on the postwar ranches and split-levels near 68th Ave NE and 73rd Ave NE stay damp in ways they wouldn’t up the hill in Bothell. We see what that does to a gas log set, and that’s why local familiarity matters here. A tech who mostly works drier upland suburbs won’t immediately suspect a corroded millivolt valve when a Kenmore homeowner reports an intermittent flame on a humid July afternoon. Ours will, because it’s routine here.
Ruben Castellano has run Alcott Chimney Sweep since 2002, and the standard for every Kenmore visit is simple: you know who’s coming before the truck parks. Every technician is background-checked and identity-verified under the Threshold Standard, and you’ll get their name and photo in advance. They’ll show a photo ID badge at the door. No exceptions. It’s a working practice that matters when you’re home alone or your kids are asleep upstairs and someone needs to open your fireplace for an hour.
We also carry professional trade brands like Olympia Chimney and Famco, not box-store substitutes. That’s relevant in Kenmore because the job often isn’t just the firebox. It’s the moisture intrusion above it, the spalled brick around the stack, the cracked crown shedding debris down into the pilot assembly. We stock the parts and materials to address the whole system in one visit, and every repair gets a written guarantee. If it fails within the 365-Day Done Right Promise period, the second visit is free.
Our Gas Fireplace Repair Services in Kenmore
Gas Log Set Cleaning and Burner Port Clearing
In Kenmore, this is almost never just routine cleaning. The damp microclimate means dust, moss debris from the crown, and fine grit from eroding mortar joints work their way down into the burner ports and clog them unevenly. You’ll notice a flame that’s tall on one side and nearly dead on the other, or a pilot that lights but won’t carry to the main burner. We clear every port individually, vacuum the firebox, and check the entire gas train from the supply line to the burner pan. A standard cleaning runs $175 – $290 in Kenmore before any parts are needed.
Millivolt Valve and Thermocouple Replacement
This is the repair we see most on Kenmore’s older homes. A millivolt valve is the small self-powered gas valve that opens and closes based on the tiny electrical current generated by the pilot’s heat. When ground fog and dampness wick through the original single-wythe brick fireboxes on 1950s and 1960s homes near the Sammamish River corridor, those valve assemblies corrode from the outside in. The symptom is usually a pilot that stays lit, but a main burner that won’t come on, or a fire that shuts itself off mid-evening. Valve replacement with a new thermocouple typically runs $385 – $720 in Kenmore, depending on the fireplace model and how much burner disassembly is required.
Firebox and Damper Gasket Inspection and Repair
Gas fireplaces don’t get a pass on structural inspection. Many Kenmore homes still have their original refractory panels and damper assemblies from the Eisenhower through Ford administrations. Cracked panels, a damper that won’t fully close, or a gasket that’s dried and leaking combustion gases back into the room are all findings we check on every gas fireplace call. On low-elevation streets near the river floodplain, we routinely find fireboxes with active moisture weeping at the throat even in summer. The water table’s high there, and it does not take the season off. Gasket replacement and minor panel repair typically runs $140 – $260.
Pilot Assembly and Ignition Repair
The pilot hoods on Kenmore gas fireplaces take abuse from above. After wet winters, moss and lichen on the chimney crown break loose and drop straight down the flue into the firebox. The first thing that crud hits is the pilot hood and thermocouple. If your fireplace clicks but won’t light, or the pilot won’t stay burning more than a few seconds, that’s often the cause. We clean or replace the pilot assembly and test the ignition sequence thoroughly before we leave. Expect $190 – $375 for a typical pilot repair on a Kenmore gas fireplace.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Kenmore
We work on gas fireplaces from every major manufacturer, and we install parts from the trade brands professionals actually specify: Olympia Chimney, Famco, and Copperfield among them. These aren’t the generic parts you’ll find at a big-box hardware store. For Kenmore customers specifically, this matters because stock parts don’t solve moisture-driven failure modes. A replacement thermocouple we install on a 1968 fireplace near 73rd Ave NE has to hold up to the same ground-fog conditions that killed the first one. We’d rather use a part built for that than hope a discount version survives the next damp winter.
Common Gas Fireplace Repair Problems We See in Kenmore Homes
- Corroded millivolt valves from low-basin moisture. Kenmore’s position between Lake Washington and the Sammamish River keeps ground-level humidity high. That moisture wicks into the single-wythe brick fireboxes of 1950s-through-1970s homes and corrodes valve assemblies from the outside. The gas fireplace’s age matters less than where the house sits.
- Rust-jacked burner orifices in gas log sets. The same dampness that attacks valves also rusts the small brass orifices on the burner pan. When rust builds up inside the orifice, gas flow gets restricted and the flame burns weak or uneven. It’s a corrosion problem, not a brand problem, and it’s disproportionately common on low-elevation Kenmore streets.
- Pilot hoods fouled by moss and crown debris. After a wet winter, moss grows aggressively on damp crowns and shoulders. When it dries and breaks loose in spring, it drops down the flue and lands directly on the pilot assembly. The result is a pilot that won’t stay lit or a burner that lights weakly and smells gassy.
- Cracked clay flue tiles discovered during gas service. Decades of Pacific Northwest moisture cycling through Kenmore’s original masonry chimneys leave clay tiles cracked and firebox brick spalled. We often find these during a routine gas fireplace service call. It’s not an upsell. It’s a structural reality of the housing stock here, and we’ll show you the camera evidence before recommending anything.
Pricing for Gas Fireplace Repair in Kenmore, NY
Here are the real numbers for Kenmore, not national averages. A gas log set cleaning with full burner port clearing typically runs $175 – $290. Pilot assembly repair lands at $190 – $375. A thermocouple replacement alone is usually $140 – $220. Millivolt valve replacement, which is the big one on Kenmore’s older homes, runs $385 – $720 depending on the fireplace model and how much corrosion we’re working around. A full firebox inspection with gasket and damper repair adds $140 – $260. These are the prices you’ll see on the written estimate before any work begins, and they don’t change at the end of the job. Call (336) 863-3889 and we’ll give you an exact number for your fireplace.
We Also Serve Cities Near Kenmore
Alcott Chimney Sweep provides Gas Fireplace Repair in Kenmore and regularly dispatches technicians to Brooklyn, Queens, Manhattan, and Staten Island. If you’re in one of those areas and your gas fireplace is acting up, the same written pricing and name-and-photo technician preview apply. You’ll always know exactly who’s coming before we arrive.
Serving Kenmore, NY - Our Local Coverage Area
We’re based in the Kenmore 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 Kenmore
A faint gas odor right after shutdown usually means unburned gas is lingering around the burner because the burner ports are partially clogged or the valve isn’t closing completely. In Kenmore, the most common culprit is moisture-driven corrosion on the valve body or rust choking the burner orifices. Don’t ignore it. Call (336) 863-3889 and we’ll diagnose it properly; a quick inspection is cheaper than letting a corroded valve fail completely.
Every year, and here’s why: your fireplace is sitting in a single-wythe brick chimney that’s now 50 to 70 years old, in one of the dampest microclimates in King County. The moisture wicking through that brick is not waiting for a convenient time. Annual inspection catches corroded valves and cracked panels before they fail in the middle of a cold snap. Call us at (336) 863-3889 to schedule; estimates are free.
If you’re burning wood as your primary heat in Kenmore through the long October-to-April heating season, you should plan on sweeping twice a year, not once. The local humidity makes it harder to season firewood properly, and partially seasoned wood produces heavier creosote. That’s the tar-like buildup that causes chimney fires. More frequent burning with damper local wood means more frequent maintenance. Call (336) 863-3889 and we’ll set a schedule that fits how you actually burn.
Ground fog is not just an outdoor nuisance here. It signals the high ambient humidity that’s been wicking into your masonry and firebox. When the pilot assembly or thermocouple is already compromised by corrosion, the added moisture on a foggy morning can be enough to prevent the pilot from generating the electrical current the valve needs. It’s a moisture problem, not a coincidence. A technician familiar with Kenmore’s conditions will check the valve and pilot assembly first. Call (336) 863-3889 for an exact diagnosis.
Sometimes, but you’ll see the evidence with your own eyes before we recommend a thing. On Kenmore’s older homes, a gas fireplace call can reveal cracked clay flue tiles or spalled brick that needs repointing or a new liner. We use a camera inspection and show you the photos. If the chimney is sound, we’ll tell you that plainly and we won’t invent work. If it’s not, you’ll understand exactly why. Every recommendation comes with a written price and a written guarantee.
Call Alcott Chimney Sweep for Gas Fireplace Repair in Kenmore
If your gas fireplace is acting up, call us at (336) 863-3889. You’ll talk to a person, not a voicemail queue. We’ll schedule a time, send you the technician’s name and photo before the visit, and deliver a written price before any work starts. That’s how we’ve done it since 2002, and that’s how we do it in Kenmore. Whether you’re near the river or up by 68th Avenue, the same standard applies: background-checked, identity-verified technicians, professional trade parts, and a 365-Day Done Right Promise on every repair.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, serving Kenmore since 2002.