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 Cibolo
A gas fireplace repair in Cibolo usually runs between $145 and $485 depending on what’s actually wrong. That’s a wide range because some calls are simple thermocouple replacements and others need a full refractory panel swap. If your fireplace won’t stay lit, makes a rumbling noise, or smells like gas when it runs, call Alcott Chimney Sweep at (336) 863-3889 and we’ll send a technician whose name and photo you’ll have before we ever pull into your driveway.
Cibolo’s housing is different from older Texas towns. Nearly every home here went up after 2003, which means factory-built fireplaces, not traditional masonry. Those units have their own failure patterns, and we know them well because we see them every week in neighborhoods like Turning Stone, Buffalo Crossing, and Deer Creek. Ruben Castellano has built our gas fireplace repair team around one idea: you should know exactly who’s coming to your door and exactly what the repair will cost before any work begins.
Why Alcott Chimney Sweep Is Cibolo’s Preferred Gas Fireplace Repair Company
Alcott Chimney Sweep has served homeowners since 2002 through the Threshold Group family of home-service companies. Every technician who answers a Cibolo call is background-checked, identity-verified, and uniformed. You get their name and photo before arrival, and they’re required to show a photo ID badge at your door. No exceptions. That’s the Threshold Standard, and it matters in a city like Cibolo where many residents are home alone during the day, raising young kids, or simply don’t like opening the door to an unverified stranger.
Our approach to gas fireplace repair is straightforward: we diagnose the problem, show you what we found, and hand you a written price before any work starts. That written price is non-negotiable, and it’s always included. No surprise charges at the end of the job. If the repair doesn’t hold up, our 365-Day Done Right Promise covers a free second visit. That’s a full year of accountability on every completed repair, written down, not just said over the phone.
We also stock the parts Cibolo homes actually need. Most of the units in this city are Heat & Glo and Heatilator models from the 2003 – 2012 build wave, and we keep refractory panels, thermopiles, gaskets, and termination caps for those specific brands on our trucks. That means fewer trips back and forth to a parts warehouse and a faster repair for you.
Our Gas Fireplace Repair Services in Cibolo
Gas Fireplace Diagnosis and Tune-Up
When a gas fireplace starts acting up, the first step is figuring out whether it’s a gas flow issue, an electrical component failure, or a draft problem caused by worn seals. In Cibolo, we frequently find the draft problem hiding behind a fireplace that looks completely fine from the outside. A diagnosis call includes checking the pilot assembly, thermopile output, gas valve operation, and the condition of the refractory panels behind the glass. Most diagnostics in Cibolo take under an hour, and you get a written repair plan with real dollar numbers before we touch a single component.

Refractory Panel Replacement
This is the repair we perform more than any other for Cibolo homeowners. The refractory panels behind the glass in a factory-built fireplace start cracking sometime between years 10 and 15, and most of the units in Cibolo are right in that window. When a panel cracks, it exposes the firebox to heat it wasn’t designed to take, and it can also knock out the pilot. We replace these panels with OEM-spec materials from brands like DuraFlex and Copperfield, not improvised substitutes. The job usually runs between $275 and $485 including parts and labor, depending on your specific unit.

Thermopile and Thermocouple Replacement
If your fireplace lights but then shuts off after a few minutes, a failing thermopile is often the culprit. The thermopile generates the tiny electrical current that tells the gas valve to stay open. When it wears out, the gas valve closes and the flame dies. In Cibolo’s hot, dry climate, thermopiles and thermocouples also accumulate fine dust that speeds up wear. Replacement typically runs $145 to $265 in Cibolo, and it’s a repair we can usually complete in one visit because we carry the parts on the truck.

Gasket and Seal Repair
The glass front on a factory-built gas fireplace is sealed with a gasket that keeps combustion gasses inside and outside air out. Over time, Cibolo’s heat and dust break that gasket down, letting air leak in and making the flame dance or the pilot blow out. We inspect and replace gaskets during nearly every gas fireplace repair call in Cibolo because it’s a cheap fix that prevents bigger problems. Expect to pay between $85 and $160 for gasket replacement when it’s done as part of a larger repair.

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 Cibolo
Most of the gas fireplaces in Cibolo’s subdivisions were installed by the builder, and the builders used a handful of brands: Heat & Glo, Heatilator, and a few others. We service all of them. When we replace components, we use professional trade materials from Olympia Chimney, Famco, and DuraFlex. These are the same brands chimney professionals specify for repairs, not box-store substitutes. Because so many Cibolo homes share the same original equipment, we can usually complete a gas fireplace repair on the first trip instead of ordering parts and coming back a second time.
Common Gas Fireplace Repair Problems We See in Cibolo Homes
- Cracked refractory panels in builder-grade fireboxes. Homes along Cibolo Valley Drive and in subdivisions built between 2003 and 2012 are hitting the exact age where Heat & Glo and Heatilator refractory panels crack. The home still looks new, so nobody thinks to check the fireplace. The crack sits there until the panel crumbles or the pilot goes out for good.
- Pilot light issues from deteriorated gaskets and seals. Cibolo’s dry air and fine dust get into the prefab chase through worn gasket material, causing the pilot to wander and the unit to shut off mid-cycle. This is the “it lights, then it dies” call we get constantly from homes in and around the Fairhaven and Bentwood Ranch areas.
- Animal and pest intrusion during the long dormant season. Cibolo’s fireplaces sit unused for eight or more months a year in the South Texas heat. Chimney swifts, squirrels, and mud dauber wasps find their way in through damaged metal termination caps, building nests that block the flue or even inside the firebox itself. The first cold front hits, someone lights a fire, and the house fills with smoke.
- Thermopile and thermocouple failure. These small electrical components wear out in every gas fireplace eventually, but Cibolo’s dusty environment accelerates the process. A thermopile that fails means the gas valve won’t stay open, which is why your fireplace might light and then shut down after three minutes.
Pricing for Gas Fireplace Repair in Cibolo, TX
Gas fireplace repair in Cibolo runs from about $145 for a basic thermocouple replacement to around $485 for a full refractory panel swap. Gasket replacement alone is usually $85 to $160. If you need multiple repairs in one visit, we bundle the labor so you’re not paying a separate service charge for each item. Every job starts with a written price before work begins, and you’ll never see a charge at the end that wasn’t on that paper. Call (336) 863-3889 for a free estimate. We’ll walk you through what we’re checking and give you real numbers for your specific unit.
We Also Serve Cities Near Cibolo
Our techs run routes through Schertz, Universal City, Converse, and New Braunfels every week, so scheduling a Gas Fireplace Repair appointment usually means a short wait. If you live in one of those communities, call (336) 863-3889 and we’ll let you know when we’re in your area. For Cibolo residents, our team knows the local subdivisions and the specific fireplaces builders installed in them, and we’re proud to be the company Cibolo homeowners call when a fireplace stops working the first cold night of the year.
Serving Cibolo, TX - Our Local Coverage Area
We’re based in the Cibolo 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 Cibolo
A 2008 home in Cibolo has a fireplace that’s now 15 to 17 years old, which is exactly when the refractory panels inside a factory-built unit start cracking. The cracks are behind the glass and invisible from outside. When those panels fail, they can damage the firebox and knock out the pilot, leading to a much bigger repair. A simple inspection catches it early. Call (336) 863-3889 and we’ll check it for you.
That symptom usually points to a failing thermopile or a deteriorated gasket letting cold air hit the pilot. In Cibolo, we see both problems regularly. The thermopile generates the electrical current that holds the gas valve open, and when it weakens, the valve closes and the flame dies. The fix is straightforward and typically costs between $145 and $265.
A prefab fireplace should get a level 2 inspection: checking the refractory panels, gaskets, termination cap, and the chase top. Most homeowners think sweeping a brick flue is the whole job, but Cibolo’s factory-built units need a different set of checks. We document everything with photos so you can see what we see.
That’s a common situation in Cibolo because of the high number of military families rotating through JBSA assignments. Without service records, the safe move is a full inspection before you light the first fire. We check for prior repairs, panel condition, gas line connections, and any pest intrusion from the months the unit sat unused. The inspection gives you a starting point and a written report you can keep with the house.
They absolutely do. Cibolo’s fireplaces sit dormant through eight-plus months of South Texas heat, and that’s prime nesting season for mud daubers, squirrels, and chimney swifts. They enter through damaged termination caps or gaps in the chase and build nests that block the flue. The first cold-front fire pushes smoke straight back into the living room. We clean out the nest, inspect the cap, and replace it if it’s damaged so it doesn’t happen again.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, serving Cibolo since 2002.





Before
After
Before
After
Before
After