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 Schertz
Gas fireplace repair in Schertz, TX typically costs $145 to $520 depending on what’s actually wrong, and most jobs are diagnosed the same day we arrive. If your gas logs won’t light, the pilot keeps going out, or you smell something musty when you turn the fireplace on for the first time each fall, you’re dealing with problems we see constantly in this part of Guadalupe County. Our Gas Fireplace Repair crews know Schertz homes well enough to spot the culprit fast. Call (903) 515-5079 and a live person answers, day or night.
We’re not a call center routing you to whoever’s available. You’ll get the technician’s name and photo before we head your way, and that technician will show an ID badge at your door. No surprises on either count.
Key Takeaways
- Typical gas fireplace repair cost in Schertz: $145 to $520, with flue liner work running higher
- Most common local problems: rusted dampers from summer humidity, creosote buildup on gas starter lines, cracked flue liners from freeze-thaw cycles
- Ruben Castellano leads our team, and every technician is background-checked and identity-verified before stepping onto your property
- Written price before any work starts, written guarantee on every repair, free return visit if it fails
- We service every Schertz zip code, including homes along Cibolo Creek, Ashley Place, and Savannah Square
Styles & brands we work with





What Actually Goes Wrong With Gas Fireplaces in Schertz
Schertz sits in a weird weather pocket. Winter cold snaps push people to burn fires regularly, often with cedar and oak cut from their own property or bought cheap from local sellers. Then summer arrives with humidity that doesn’t quit. That humidity creeps in through hairline cracks in chimney crowns and settles into dampers, gas valve assemblies, and fireboxes. The result is a pattern we know by heart: homeowners light their first fire after Thanksgiving and discover, often during a Chimney Inspection - Schertz, that the damper won’t budge, the pilot won’t stay lit, or the whole living room smells like a wet basement.
Last winter, our crew drove out to a ranch-style home in Ashley Place where the homeowner hadn’t used their gas fireplace in two seasons. The firebox was full of first-degree creosote left from previous wood burning, and the damper had seized from summer humidity. We replaced the warped damper assembly, cleared the creosote from the smoke chamber, and verified the flue liner with a Level 2 inspection before relighting. That’s the reality of gas fireplaces in Schertz: they get treated like wood burners, and the humidity does the rest.
Why Alcott Chimney San Antonio Is Schertz’s Preferred Gas Fireplace Repair Company
We’ve been repairing gas fireplaces in the Schertz area since 2002, as part of the Threshold Group family of home-service companies. Ruben Castellano runs our operation with a simple rule: you should know exactly who’s coming to your house before they arrive, and you should know exactly what you’ll pay before any work begins. That’s not a marketing line. It’s the Threshold Standard, and it applies to every single visit.
Schertz homeowners tell us the same things repeatedly. They like that a live person answers the phone at 11 p.m. when something smells like smoke. They appreciate the name-and-photo preview before the truck pulls up. And they value the 365-Day Done Right Promise: if a repair fails within a year, we come back and make it right at no charge. Every repair carries a written guarantee. Every customer gets a written price before work starts. Those aren’t upgrades; they’re how we operate.
Dispatch and scheduling are coordinated from our San Antonio office, but crews serve Schertz locally and know the streets, the home styles, and the seasonal failure patterns here.
Our Gas Fireplace Repair Services in Schertz
Damper Replacement
Rusted or seized dampers are the single most common call we get from Schertz homes between Thanksgiving and New Year’s. Along Cibolo Creek, where ambient moisture runs higher than the rest of the city, we see dampers rust shut within three or four seasons. A replacement damper assembly for a standard masonry fireplace in Schertz typically runs $185 to $340 installed. We’ll show you the damaged part before we install the new one.

Flue Liner Repair
Older Schertz homes, particularly the ranch-style builds from the 1970s and 1980s, often have original clay flue liners. Freeze-thaw cycles crack those liners over time, and once cracked, carbon monoxide from your gas fireplace can seep into wall cavities and living spaces. We install professional-grade DuraFlex liner systems and perform camera inspections so you can see the condition of your flue with your own eyes before agreeing to any repair. Liner repair work in Schertz typically starts around $400 and goes up based on flue height and access.

Firebox Restoration
Gas fireplaces get neglected. People switch from wood to gas and assume nothing needs cleaning, but remnants of wood burning linger: creosote builds up on gas starter lines and burner ports, blocking flame and causing delayed ignition. Firebox restoration in Schertz, including cleaning, panel replacement, and resealing, typically runs $250 to $600. We use refractor panels and mortars specified for gas fireplace use, not improvised substitutes.

Gas Log Set Repair and Replacement
Corrosion from summer humidity eats at gas log sets in Schertz fireboxes, especially when dampers don’t fully seal. We service and install Famco and Copperfield gas log sets, and we’ll advise you honestly if a repair makes more sense than a replacement. Most gas log set repairs in Schertz run $145 to $300. The brands we work with are the same ones chimney professionals specify, not box-store substitutes.

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 Schertz
We carry and install parts from the brands that professional chimney technicians actually use: DuraFlex for liner systems, HeatShield for resurfacing, Famco and Copperfield for gas log sets, plus Gelco repair in Schertz and Olympia Chimney components. Because we keep common parts in stock, most Schertz repairs are completed the same day, not after a week-long wait for shipping. You shouldn’t have to run a fireplace with a jerry-rigged part, and you won’t have to.
See the difference
Before
After
Before
After
Before
AfterCommon Gas Fireplace Repair Problems We See in Schertz Homes
- Rusted shut dampers after humid summers. This is our number one call from Thanksgiving through January, especially in homes near Cibolo Creek and neighborhoods like Savannah Square where older masonry construction holds moisture longer.
- Creosote coating gas starter lines and burner ports. Cedar and oak burned during winter cold snaps produce heavy, sticky creosote that blocks flame and causes the delayed ignition “whoomp” sound that startles homeowners.
- Cracked flue liners from freeze-thaw cycles. Schertz gets hard freezes occasionally, and clay tile liners crack under expansion and contraction. That crack is invisible without a camera inspection, but it’s a direct path for carbon monoxide.
- Corroded gas log sets in fireboxes. Humidity gets trapped in fireboxes when dampers don’t seal, corroding burners, pilots, and thermocouples. A musty smell on first lighting is the telltale sign.
Pricing for Gas Fireplace Repair in Schertz, TX
Here’s what you can expect to pay in Schertz for common repairs. A standard damper replacement runs $185 to $340. Gas log set repair runs $145 to $300. Firebox restoration runs $250 to $600. Flue liner repair starts around $400 and goes up depending on flue height and access. A diagnostic visit to identify the problem typically costs $89, and we credit that toward any repair you approve. Written price before work starts, written guarantee on the repair, no exceptions. Call (903) 515-5079 for an exact quote, and if you’d rather not spend money before knowing what’s wrong, the diagnostic fee gets you a definitive answer.
We Also Serve Cities Near Schertz
Alcott Chimney San Antonio serves homeowners throughout the northeast San Antonio metro, including Gas Fireplace Repair in Schertz and surrounding communities. Our crews regularly work in Cibolo, Converse, Boerne, and across San Antonio. If you’re in one of those areas, call (903) 515-5079 and we’ll schedule a visit with the same name-and-photo technician preview and written-pricing commitment.
Serving Schertz, TX - Our Local Coverage Area
We’re based in the Schertz 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 Schertz
That musty smell is almost always moisture trapped in the firebox and flue during summer humidity, often mixed with creosote residue from previous wood burning that has absorbed that moisture. In Schertz, where summers are hot and humid and many older homes have unsealed chimney crowns, this is a common seasonal issue. The fix starts with a cleaning and inspection to confirm there’s no hidden damage. Call (903) 515-5079 and we’ll diagnose it properly.
It’s common, but it isn’t normal in the sense of being harmless. Dampers rust shut when humidity enters through a cracked chimney crown or a damper that doesn’t fully seal. In Ashley Place specifically, the older masonry construction holds moisture longer than newer builds, so we see seized dampers here more often than in newer subdivisions. Replacement typically runs $185 to $340. We’ll show you the rusted assembly before replacing it.
Every year, before your first fall fire. Schertz’s freeze-thaw cycles put real stress on clay flue liners, and a cracked liner is invisible without a camera inspection. We include a camera inspection with our Level 2 service so you can see exactly what condition your liner is in. If you haven’t had it checked in two years or more, call (903) 515-5079 and we’ll get you on the schedule before the first cold snap.
No. Gas fireplaces are designed for gas only. Burning wood in a gas fireplace, especially in older Savannah Square homes with original flue components, creates creosote that coats gas lines and burner ports, blocks the flame, and can cause a chimney fire. If you want wood burning, talk to us about converting or installing a proper wood-burning system. Don’t improvise.
They need inspection and cleaning, though less frequently than wood burners. The real issue in Schertz is moisture and corrosion, not creosote accumulation. That said, if previous owners burned wood, creosote remains in the flue and can cause problems even with gas logs. An annual inspection catches all of it. Call (903) 515-5079 and we’ll tell you plainly what your fireplace actually needs, nothing more.
Call Alcott Chimney San Antonio for Gas Fireplace Repair in Schertz
If your gas fireplace is giving you trouble, don’t wait for the next cold snap to make it worse. Call (903) 515-5079 and you’ll speak to a live person who can schedule your visit, answer your questions, and confirm your technician’s name and photo before we arrive. Ruben Castellano leads our team, and every technician follows the Threshold Standard: background-checked, identity-verified, uniformed, and accountable. Written price before any work starts, written guarantee on every repair, and a free return visit if something fails. That’s how we’ve done it since 2002, and that’s what you’ll get in Schertz.
Written by Ruben Castellano, Owner at Alcott Chimney San Antonio, serving Schertz and surrounding communities since 2002.