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 Fillmore
Gas fireplace repair in Fillmore runs $185 to $480 for most service calls, with flue liner replacement in older homes landing between $1,200 and $3,400 depending on flue size and access. Most repairs are completed in a single visit. Our Gas Fireplace Repair team knows Fillmore’s older housing stock well, because a gas fireplace in a 1930s Craftsman bungalow on Saratoga Street behaves very differently than one in a mid-century ranch near Central Avenue.

If your gas logs are burning yellow, the pilot won’t stay lit, or you smell gas or exhaust when the fireplace runs, call (559) 282-2695. A live person answers, and we’ll schedule a time that works for your Fillmore home.
Why Alcott Chimney Ventura Is Fillmore’s Preferred Gas Fireplace Repair Company
Ruben Castellano leads our team with a straight answer to the problem most Fillmore homeowners face: how do you trust a repair recommendation you can’t see for yourself? The answer is camera evidence. Every diagnostic visit includes a flue scope inspection, and you watch the footage with the technician before any repair is approved. If the camera doesn’t show a crack, we won’t say there is one.
Fillmore’s pre-1960 brick chimneys are prime targets for unnecessary liner upselling. We’d rather show you a clean flue and send you home with a swept chimney than sell a liner you don’t need. That’s not a slogan; it’s how our written guarantee works. If we repair a gas fireplace and the problem returns within 365 days, the second visit is free. Every job includes a written price before work starts, and every technician is background-checked and identity-verified through the Threshold Standard before stepping onto your property. You’ll know the technician’s name and see their photo before we ring the bell.
We’re part of the Threshold Group family of home-service companies, operating as an independently owned and operated location with crews serving Fillmore locally. Scheduling is coordinated from our Los Angeles office, but the techs who show up live and work in the region.
Styles & brands we work with





Our Gas Fireplace Repair Services in Fillmore
Flue Liner Inspection and Replacement
Fillmore chimneys built before 1960 commonly have original clay-tile liners. After 60-plus years of thermal cycling, those tiles crack in patterns a visual inspection from the firebox can’t catch. We scope the full flue with a camera and show you exactly what the liner looks like. When replacement is required, we install professional trade liners from DuraFlex or Olympia Chimney – never box-store substitutes. A stainless liner sized correctly for a gas fireplace eliminates the gaps where carbon monoxide finds its way into bedrooms during winter fireplace use in the Santa Clara River Valley.

Damper Repair and Replacement
Older Fillmore homes – especially the Craftsman bungalows and early 20th-century houses near downtown – often have dampers that have warped, seized, or rusted through from rain exposure during wet winters. A damper stuck open lets warm air escape your living room all year, and one stuck closed makes gas logs burn inefficiently and pushes exhaust back into the house. We repair or replace dampers from Famco and Copperfield, and every new damper comes with the same written guarantee as any other repair.

Firebox Assessment for Gas Log Conversion
Thinking about converting a wood-burning fireplace to gas in Fillmore? The firebox wall needs evaluation before a gas log set goes in. Historic downtown Fillmore chimneys often have narrow flues and outdated dampers that can crack when a gas fireplace insert is installed without a custom liner – a pattern we rarely see in neighboring Santa Paula, where newer tract homes dominate. We check the firebox refractory panels, floor, and throat for damage, then tell you plainly whether the chimney is compatible or needs relining first.

Pilot Assembly, Thermocouple, and Valve Repair
Most gas fireplace failures in Fillmore homes come down to three components: the pilot assembly, the thermocouple, or the gas valve. A thermocouple that’s worn out can’t generate the electrical signal to hold the gas valve open, so the fireplace shuts off mid-burn. We carry common replacement parts in the truck, which means many repairs in Fillmore are done same-visit without a second trip. Every part we install is a professional trade brand, not a generic substitute.

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 Fillmore
We work on gas fireplaces and insert systems from the brands Fillmore homeowners actually have installed: HeatShield resurfacing systems, Gelco components, Olympia Chimney liners, and Famco dampers. Stocking parts locally means faster turnaround when your fireplace needs a repair in the middle of the burning season. If you have a fireplace from a less common manufacturer, we can usually source the part within a few days and schedule around your availability in Fillmore.

Common Gas Fireplace Repair Problems We See in Fillmore Homes
- Cracked clay-tile flue liners from decades of thermal cycling. Homes built before 1960 in Fillmore almost always have original clay-tile liners. The repeated heating and cooling from winter fireplace use against mild, wet winters creates hairline cracks that go unnoticed until exhaust begins backdrafting into living spaces or a carbon monoxide detector goes off.
- Warped or seized dampers in pre-1960 chimneys. Fillmore’s older bungalows have original cast-iron dampers that rust and warp after decades of rain exposure. A damper that won’t fully open makes gas logs burn dirty; one that won’t close lets cold air pour into the house when the fireplace is off.
- Narrow flues in historic downtown homes that don’t match modern gas inserts. The chimney stacks in Fillmore’s historic downtown area were built for wood fires, not sealed gas inserts. When a modern gas insert is installed without proper relining, the flue can’t move exhaust effectively. Soot accumulates, backdrafting happens, and the fix is a properly sized stainless liner.
- Santa Ana wind backdrafting through exhausted flue gas paths. Fillmore sits where the Santa Clara River Valley funnels Santa Ana winds. Strong, gusty winds press against the chimney outlet and can force exhaust gas back down a flue that has any leak or gap. Our repairs seal the flue path end to end, not just the visible section in the firebox.
See the difference
Before
After
Before
After
Before
AfterPricing for Gas Fireplace Repair in Fillmore, CA
A standard gas fireplace diagnostic and service call in Fillmore runs $185 to $260, which includes the camera inspection and a written repair quote. Replacing a thermocouple or pilot assembly typically falls between $240 and $385. Damper replacement on older Fillmore chimneys runs $350 to $700 depending on flue size and access. A full flue liner replacement in a pre-1960 home is the biggest ticket item: $1,200 to $3,400 for the liner, insulation, and installation, with the exact price set by flue diameter, height, and roof access from homes along streets like Sespe Place or Mountain View Street. Call (559) 282-2695 for a free estimate with a written price before any work begins.
We Also Serve Cities Near Fillmore
Our crews handle Gas Fireplace Repair in Fillmore and regularly work in nearby Moorpark, Santa Paula, Somis, and Simi Valley. If you’re just outside Fillmore city limits, give us a call – we likely schedule in your area during the same week.
Serving Fillmore, CA - Our Local Coverage Area
We’re based in the Fillmore 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 Fillmore
The only way to know for certain is a camera inspection of the flue interior. Fillmore chimneys built before 1960 often have original clay-tile liners with cracks you cannot see from the firebox looking up. We scope the flue, show you the footage, and give you a written assessment. If the liner is intact and the flue is sized correctly, a gas insert can go in safely without relining. If it’s cracked, you’ll see the crack on screen before we recommend anything. Call (559) 282-2695 to schedule an inspection.
Yes. Backdrafting during Santa Ana winds is almost always caused by a gap or leak in the flue path that allows wind pressure to overpower the natural draft of the fireplace. We seal the flue path, often by installing a properly sized liner through the full chimney height, and verify the fix with a smoke test and draft measurement while the fireplace runs. It’s a repair we’ve done numerous times in Fillmore homes along the wind channel of the Santa Clara River Valley.
Third-degree creosote is the hardened, tar-like residue that forms when wood smoke condenses and bakes onto chimney walls. It matters because gas fireplaces are often installed in chimneys previously used for wood, and third-degree creosote does not burn away at gas appliance temperatures. That hardened layer reduces flue diameter, can chip and fall, and in some Fillmore chimneys has fully blocked the flue. We remove glazed creosote mechanically before any gas appliance is connected. Call (559) 282-2695 for an inspection.
Every 12 months. The National Fire Protection Association standard is an annual inspection, and Fillmore’s wet winters plus Santa Ana wind cycles make yearly checks more important here than in drier inland communities. Moisture from winter rain can deteriorate mortar and brick at chimney crowns, and wind can shift or damage caps. A yearly inspection catches those issues before they become gas leaks or carbon monoxide problems. It’s a $185 to $260 visit in Fillmore and includes the camera scope.
Usually yes, and the reason is specific to older Fillmore chimneys. Clay-tile liners built before 1960 were designed for wood-burning temperatures and large flue volumes. Gas produces a cooler, lower-volume exhaust that condenses inside those big clay flues, leaving acidic residue that eats into mortar over time. A stainless liner sized for gas resolves that. Whether your specific chimney needs it depends on what the camera shows. Call (559) 282-2695 for a free estimate with a written price.
We Show You the Work Before You Pay for It
Here’s what a gas fireplace visit in Fillmore looks like for us. We repaired a gas fireplace in a Craftsman bungalow on Saratoga Street where the original clay-tile flue had cracked after years of Santa Ana wind-driven rain. Our tech scoped the flue, showed the homeowner the footage, and installed a DuraFlex liner with a new damper – fixing the draft and stopping exhaust backflow into the living room. That’s the standard for every Fillmore home we work on: camera evidence first, written price second, repair third, written guarantee from that point forward.
If your gas fireplace in Fillmore won’t stay lit, burns oddly, smells like exhaust, or sets off a carbon monoxide detector, call (559) 282-2695. A live person answers, we’ll schedule around your day, and you’ll know the technician’s name and see their photo before we arrive.
Written by Ruben Castellano, Owner at Alcott Chimney Ventura, serving Fillmore since 2002.