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 Schertz
Gas fireplace repair in Schertz runs $145 – $380 for most common fixes like thermocouples, thermopiles, and burner orifice service, and we can usually have a technician at your door within 48 hours of your call. Schertz’s 1995 – 2015 tract-home boom left thousands of factory-built gas units in neighborhoods like Fairhaven, Sycamore Creek, and Bentwood Ranch, and a lot of them are now hitting the age where OEM parts fail at the same time. If your unit won’t light, won’t hold a flame, or you smell gas near the fireplace, call (336) 863-3889 before you fire it up again.
Why Alcott Chimney Sweep Is Schertz’s Go-To for Gas Fireplace Work
We’ve spent a lot of time in Schertz homes, and we know what builder-grade gas fireplaces in those subdivisions actually look like when they’re 15 to 25 years old. The glass front looks fine. The prefab chase cap behind it usually isn’t. Our techs work on factory-built units from every major manufacturer and we keep common thermocouples, thermopiles, and burner orifices on the truck so half the time we fix it on the first trip. Ruben Castellano has built this company on a simple rule: show the customer what’s wrong before you ask them to pay for a fix.
Every technician we send into Schertz is background-checked, identity-verified, uniformed, and announced to you by name and photo before they arrive. That’s the Threshold Standard, and it’s not an add-on. You’ll know who’s pulling into your driveway before the truck does. Our phones are answered by a live person around the clock, because when a gas appliance misbehaves at 11 p.m. during a blue norther, a voicemail isn’t helpful.
Our Gas Fireplace Repair Services in Schertz
Thermocouple and Thermopile Replacement
This is the most common call we get from Schertz homeowners in November and December. A thermocouple is a small sensor that tells the gas valve the pilot is lit; when it fails, the fireplace either won’t light or cuts out a few minutes after you start it. On factory-built units from the late 90s and early 2000s in neighborhoods off FM 3009, these fail silently after years of no use and then fail on the first cold night you actually want the fire. A typical thermocouple replacement in Schertz runs $145 – $230, and a thermopile (which generates the voltage for millivolt systems) runs $200 – $320.

Burner Orifice Cleaning and Gas Valve Diagnostics
When a gas fireplace sits dormant for 8 – 10 months, the burner orifice can plug with dust, spider webs, or corrosion from humidity along the Cibolo Creek corridor. We pull the log set, clear the orifice, verify gas pressure at the valve, and confirm the flame pattern looks right. If the gas valve itself has failed, we’ll show you the diagnostic reading and give you a written price before anything gets replaced.

Level 2 Inspection of Prefab Chases and Venting
The prefab chase is the framed, often vinyl or stucco-wrapped enclosure that houses the fireplace venting in most Schertz tract homes. Water gets in through cracked chase caps or lifted flashing, and you won’t see it until the burner assembly corrodes or the wall shows a stain. A Level 2 inspection includes camera inspection of the flue, verification of cap and flashing seals, and a written report with photos. In Schertz it runs $225 – $375 depending on roof access and chase configuration. We recommend it for any gas fireplace over 15 years old that has never had the chase opened up.

Chase Cap, Flashing, and Damper Repair
Schertz’s sudden cold fronts and long hot summers do a number on builder-grade chase caps. Metal expands, contracts, and eventually cracks or lifts at the seams. Water follows. We replace damaged caps, reseal flashing, and rebuild dampers that won’t close fully. These repairs typically run $275 – $520 in Schertz depending on materials and access, and they’re almost always cheaper than waiting until the water has ruined the firebox.
All of this falls under our Gas Fireplace Repair umbrella, and it’s the work we do most often in Schertz’s master-planned neighborhoods.

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 Schertz
We work on factory-built gas fireplaces from every major manufacturer, and we carry professional-grade replacement parts that match the OEM spec. That means HeatShield resurfacing products when a firebox or flue needs a renewed ceramic coating, Olympia Chimney components for prefab chase repairs, and Famco caps and dampers where the original was builder-installed. We don’t use box-store substitutes, and we’ll tell you the brand and part number on your written quote so you can verify exactly what you’re paying for.
Common Gas Fireplace Repair Problems We See in Schertz Homes
- Won’t light or won’t hold a flame. Failed thermocouple or thermopile on a unit that’s been dormant since spring. Common in 1995 – 2015 tract homes across Fairhaven, Sycamore Creek, and Bentwood Ranch.
- Bird or debris obstruction. Chimney swifts nesting in the vent during the long warm season, particularly near the Cibolo Creek corridor. The glass front looks clean, but the flue is plugged and the unit won’t draft.
- Water corrosion on the burner assembly. Cracked chase cap or lifted flashing on the prefab enclosure lets rain in through the smoke chamber. By the time you see a stain on the wall, the burner and thermocouple are often already corroded.
- Silent part failure from deferred maintenance. We hear it constantly: the unit “only runs a few times a year, so it doesn’t need service.” The truth is a gas fireplace that runs rarely still has a pilot that sips gas year-round, and its parts age whether you use it or not.
Pricing for Gas Fireplace Repair in Schertz, TX
Straight numbers, because that’s how we do things. Basic thermocouple replacement in Schertz: $145 – $230. Thermopile replacement: $200 – $320. Burner orifice cleaning and gas valve diagnostics: $95 – $175. Chase cap replacement and flashing repair: $275 – $520. Level 2 camera inspection of a prefab chase: $225 – $375. You’ll get a written price before any work starts, and if we find something that doesn’t need fixing, we’ll say so. No quote on a repair is complete without seeing the unit, so call (336) 863-3889 and we’ll get a tech to your Schertz home fast.
We Also Serve Cities Near Schertz
Tucked just northeast of San Antonio, Schertz backs right up against JBSA-Randolph and the neighboring towns of Gas Fireplace Repair in Schertz keeps us on the road to nearby Universal City, Cibolo, Converse, and New Braunfels every week. If you’re just across the city line, give us a call. Dispatch and scheduling for this area are coordinated from our San Antonio office, but the crew you’ll meet lives and works right here in the metro.
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
Because the parts that fail first are the ones you can’t see from the living room. A 2005 factory-built unit is 20 years old, and that’s when OEM thermocouples, thermopiles, and burner orifices start dying. The prefab chase cap on a 2005 tract home has been baking in Texas sun for two decades, and if it’s cracked, water is already getting into the chase. The glass front looking new doesn’t mean the venting is clear or the gas valve is healthy. Call (336) 863-3889 and we’ll take a camera look before anything gets replaced.
As often as you like, once it’s been inspected. Schertz gets maybe a handful of truly cold nights each winter, mostly when a blue norther pushes through from November to February. That means your gas fireplace sits dormant for 8 – 10 months at a time, which is exactly when chimney swifts move into the vent and moisture settles into the burner assembly. The problem isn’t how often you use it. It’s that the long idle stretches let problems build unnoticed. Get it checked once, then enjoy the fire whenever the temperature drops.
A Level 2 inspection on a prefab gas fireplace includes a camera scan of the entire flue, verification of the chase cap and flashing seals, a check of the damper operation, and a detailed written report with photos. We’re looking specifically for water intrusion paths, bird or debris obstructions, and any separation in the prefab vent sections. This is the inspection most Schertz homeowners have never had done on their 1995 – 2015 gas units, and it’s the one that catches the problems you can’t see from the hearth.
Yes. We work with renters and landlords across Schertz all the time, and this is actually a situation we see a lot. Military families rotating through JBSA-Randolph often move into rental homes whose gas fireplaces have never been touched since the house was new. We’ll inspect the unit, document everything with photos, and give you a written report you can hand to the landlord. If the landlord authorizes the repair, we do the work. If not, you’ll at least know whether that fireplace is safe to operate. Call (336) 863-3889 to schedule.
Almost never. A cracked chase cap on a prefab chimney is a top-side component failure, not a structural problem with the fireplace itself. In most Schertz homes we can replace the cap, reseal the flashing, and check the venting below it for any water damage, usually for $275 – $520 depending on access. The exception is if water has been getting in for years and corroded the burner or damaged the firebox, in which case we’ll show you the camera footage before recommending anything bigger. Call (336) 863-3889 for a free inspection quote.
Gas Fireplace Repair in Schertz, Done the Alcott Way
Here’s what that means. We got a call from a homeowner in the Northcliffe area whose 1990s factory-built gas unit wouldn’t stay lit past a few minutes. Our tech pulled the log set, found a failed thermocouple and a spider-web-clogged burner orifice, replaced the thermocouple, cleared the orifice, and confirmed the prefab cap and flashing were still sealed. Same week we did a Level 2 inspection on a 2004 gas-log unit off the Cibolo Creek corridor where a chimney swift nest had plugged the vent and the damper wouldn’t close fully. Once we cleared the flue and reset the damper, the draft was back where spec called for. Two different Schertz homes, two very different failures, both fixed on the first visit.
Every repair comes with a written guarantee. If the repair fails within the coverage period, the second visit is free. That guarantee is written, not implied, and it’s included on every job. Ruben Castellano didn’t build Alcott Chimney Sweep to sell repairs people don’t need. He built it to be the company that answers the phone, names the technician before you open the door, and stands behind the work for a full year afterward.
If your Schertz gas fireplace is acting up, don’t wait for the next cold front to find out it won’t light. Call (336) 863-3889 today. A real person answers, and we’ll schedule a tech who shows up verified, uniformed, and ready with the parts most Schertz units need.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, leading the team that keeps Schertz gas fireplaces safe and working.





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