Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
Gas fireplace serviceLevel 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 Fresno
Gas fireplace repair in Fresno typically costs $145 – $390 for common fixes like thermocouple replacement, pilot assembly repair, and cap crack sealing, with flue liner work running $1,800 – $3,600 depending on chimney height and access. Most Fresno homes we visit need a camera inspection first, because a gas log set hiding inside a 1930s masonry chimney can mask problems you’d never see from the firebox. That inspection costs $189 and includes footage you can watch with us on the spot. If your gas fireplace is acting up anywhere in Fresno, call (559) 215-1714 and we’ll get a technician scheduled fast.
Why Alcott Chimney Fresno Is Fresno’s Preferred Gas Fireplace Repair Company
We’ve worked on gas fireplaces from the Tower District to Woodward Park, and the chimney problems in central Fresno don’t look like the ones in Clovis or North Fresno. Older bungalows near Fresno High and the Van Ness corridor have masonry chimneys from the 1920s and 30s, many unlined or vented with cracked clay tile. Newer subdivisions north of Herndon have prefabricated metal flues with different failure modes entirely. Knowing which one you have before we arrive saves you money, because we stock parts for both and send the right technician the first time.
Every Gas Fireplace Repair technician we send to a Fresno home is background-checked and identity-verified under the Threshold Standard. You’ll get the technician’s name and photo before we arrive, and they’ll show photo ID at your door. No mystery crews, no subcontractors you didn’t approve. Ruben Castellano runs this operation with a simple rule: written price before work begins, written guarantee on every repair, and a free return visit if anything fails within 365 days. If your gas fireplace smells like burning dust in November, you want someone who will actually answer the phone, not a voicemail queue. We answer live, around the clock.
Styles & brands we work with





Our Gas Fireplace Repair Services in Fresno
Gas Fireplace Flue Inspection with Camera
Before anyone lights a gas log set in an older Fresno home, we recommend a camera inspection of the flue. Gas appliances vent cooler exhaust than wood fires, which means they don’t burn off creosote and they don’t dry out moisture the same way. In a Tower District chimney that’s sat idle since spring, you can get condensation, spalling mortar, and hairline clay tile cracks you’d never detect from the firebox. We run a camera from the firebox up through the cap and record everything. You see the footage on our tablet before we recommend a single repair.

Fresno Cap Crack Repair and Crown Sealing
The Fresno cap, that slightly flared concrete top on 1920s to 40s chimneys around the Tower District and Huntington Boulevard, is a local failure point we know well. Valley heat bakes the thin flare until it cracks, then winter rain gets behind the gas flue and spalls the crown from the inside out. We seal and repair these caps with professional-grade materials, and we’ll show you the crack before we touch it. If you see sand in your firebox after a heavy Fresno rain, that’s spalled mortar falling from the cap. It’s fixable, but not if you ignore it.

HeatShield Flue Liner Installation
A lot of Fresno homeowners vent gas fireplaces into chimneys that were never designed for them. A 1930s masonry chimney with no liner, or one with cracked clay tile, can leak carbon monoxide into wall cavities and living spaces. We install HeatShield flue liners for unlined and damaged chimneys, and we’ll scope the flue first so you can see exactly why it’s needed. HeatShield is a poured ceramic liner system that seals cracks and restores the flue to a safe, insulated condition. It carries a written warranty and our 365-Day Done Right Promise covers the install.

Gas Fireplace Pilot, Thermocouple, and Valve Repair
If your gas fireplace in Fresno won’t light, or the pilot goes out after a few minutes, the usual culprits are a dirty thermocouple, a failing thermopile, or a gas valve that’s past its service life. In Clovis and northeast Fresno homes with newer direct-vent units, thermocouple replacement is often a same-visit fix. In older central Fresno bungalows with vented gas log sets, the problem is occasionally the flue, not the valve, so we check both before quoting anything. You get a written price before we start, and the replacement thermocouple or valve is covered by our repair guarantee.

What happens when you call
- 1
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 Fresno
We work on gas fireplaces from the brands Fresno homeowners actually have: HeatShield for poured flue liners, Gelco for gas log sets and burners, and Olympia Chimney for caps and termination systems. We stock common parts locally, which means a pilot assembly or thermocouple replacement in Fresno doesn’t wait on a backordered part from the East Coast. When a chimney repair needs a Famco component or a Copperfield termination cap, we order direct from the manufacturer, not a big-box substitute. Our technicians are trained on these specific systems, and we’ll tell you plainly if your unit is better repaired or replaced.
Common Gas Fireplace Repair Problems We See in Fresno Homes
- Cracked Fresno cap flare on pre-war chimneys. The concrete lip on 1920s – 40s Tower District and central Fresno chimneys cracks under valley heat, letting water behind the flue. Left alone, it spalls the crown and the mortar rains down into your firebox.
- Third-degree creosote hidden behind gas log sets. Fresno’s winter inversions mean intermittent burning, and a homeowner might burn wood for years before converting to gas. That old tar layer sits behind the gas log set, cutting draft and stinking when the gas fires up.
- Cracked clay tile liners from hot-to-cold swings. Fresno summer days hit 100, then a January cold snap drops it to 34. That thermal cycling cracks clay tile flue liners at the mortar joints, and the first ignition in November can shift tile shards into the smoke chamber.
- Spalling mortar falling like sand after rain. You see fine grit in the firebox after a big storm. That’s not dust from the fire. That’s mortar from a failing crown or cap, and it means water is getting into places it shouldn’t.
See the difference
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After
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AfterPricing for Gas Fireplace Repair in Fresno, CA
A gas fireplace camera inspection in Fresno costs $189, and we’ll show you the footage in real time on our tablet. Pilot and thermocouple repairs run $145 – $290 depending on the unit and part availability. Fresno cap repair and crown sealing typically lands between $350 and $700 for a standard one-story chimney, more if the flare is badly deteriorated or access requires a taller ladder. HeatShield flue liner installation in Fresno runs $1,800 – $3,600, and the price depends on flue height, liner condition, and whether we’re repairing an existing clay tile flue or lining a completely unlined masonry chimney. Every quote is written, and it’s yours to keep before any work starts. Call (559) 215-1714 for a free estimate on your specific fireplace.
We Also Serve Cities Near Fresno
Our Fresno-based technicians also handle gas fireplace repair in Clovis, Madera, Sanger, and Fowler. If you’re just outside the city in a home near Clovis East or the Madera Ranchos, we schedule Fresno jobs and nearby appointments daily. Read more about our full Fresno coverage area or call us directly to confirm your address.
Serving Fresno, CA - Our Local Coverage Area
We’re based in the Fresno 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 Fresno
Yes, and in Fresno that’s exactly the pattern that causes problems. A chimney that sits unused from April through November collects moisture, and when the first cold snap hits, you light a gas log set inside a damp, possibly cracked flue. We recommend a camera inspection before the first burn of the season, even if the fireplace is “just” gas. For $189 you’ll see exactly what’s inside, and you won’t light a fire inside a chimney that’s quietly failing. Call (559) 215-1714 to schedule yours.
The Fresno cap flare, that slightly flared concrete lip popular on 1920s to 40s chimneys, cracks because thin concrete can’t handle repeated 100-degree summer expansion followed by 35-degree winter contraction. The flare is the weakest point, and once water gets in, the freeze-thaw cycle makes it worse. We repair and seal these caps with materials that flex better with Valley temperature swings, and every repair carries our written 365-day guarantee. If you see cracking around the flare, get it sealed before the next rain.
No, not safely. Gas exhaust is cooler than wood smoke and it condenses more easily inside unlined masonry, which means acidic moisture soaks into the mortar and degrades the brick. Worse, an unlined chimney can leak carbon monoxide into the wall cavities of an older central Fresno home. We’ll scope it with a camera and show you the condition on the spot. If a liner is needed, we install HeatShield, explain why it’s necessary, and give you a written quote before any work begins. No one at Alcott will recommend a liner you can’t see the reason for.
That smell in a Fresno home is usually dust and soot burning off the burner and logs after months of disuse, and it often clears in 10 to 15 minutes. But if it smells acrid, or it doesn’t clear, or you smell it in rooms away from the fireplace, you might have a draft problem, a cracked flue liner, or a blockage. Years of Fresno winter inversion burning can leave a creosote tar layer behind even a gas log set, and that cuts draft and pushes exhaust back into the house. If the smell isn’t typical dust, call (559) 215-1714 and have us scope the flue.
No, and in Fresno it almost always means a spalling crown or a cracked cap flare. What looks like sand is partly mortar and masonry dust shaken loose as water works its way through the crown. You’ll see this more after big Valley rain events, especially in older Tower District and Huntington Boulevard homes. The fix is typically crown repair or cap replacement, and we’ll show you the damage on camera before quoting. If left alone, the spalling worsens and the flue can start shedding clay tile. That’s when repair costs climb. Call us at (559) 215-1714 for a free estimate.
Call Alcott Chimney Fresno for Gas Fireplace Repair
When your gas fireplace in Fresno won’t light, or it smells wrong, or you’ve got sand in the firebox after a storm, you want a straight answer from someone who knows these chimneys. That’s us. We serve Fresno, Clovis, Madera, Sanger, and Fowler, and we answer the phone live, 24 hours a day. Every job gets a written price before we start, a camera inspection you can see with your own eyes, and a written 365-day guarantee backed by a free return visit if anything fails. Call (559) 215-1714 and talk to a real person today.
Written by Ruben Castellano, Owner at Alcott Chimney Fresno, serving Fresno and the Central Valley since 2002.