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 San Antonio
A gas fireplace that won’t light, won’t stay lit, or smells wrong needs attention from a tech who understands San Antonio’s older chimneys. Most gas fireplace issues in this city trace back to the venting, not the burner itself. Cracked clay tile liners, rusted dampers, and spalling mortar inside the flue are common in neighborhoods like Monte Vista, Alamo Heights, and Terrell Hills. We’re Hadley Chimney San Antonio, and our Gas Fireplace Repair team starts every job by looking at the flue with a camera, because you deserve proof before anyone replaces a part. Call us at (254) 276-4116 and we’ll walk you through what’s happening.
Why Hadley Chimney San Antonio Is San Antonio’s Preferred Gas Fireplace Repair Company
Hadley Chimney Sweep has been doing chimney work since 2003. Our San Antonio clients don’t put up with vague answers, and neither do we. When you book with us, you get a live arrival window, a written price before work begins, and before-and-after photos showing exactly what we found and what we fixed. That’s The Relay Visibility Guarantee, and it’s standard on every single job, not an add-on for bigger projects.
We know San Antonio’s housing stock. Older central neighborhoods like Monte Vista and King William have decorative brick chimneys built before modern venting codes. Newer subdivisions north of Loop 1604 often have factory-built chimneys with different failure points. Our background-checked, uniformed techs are trained on both. Cory Mitchell leads our team, and the standing rule is simple: nothing gets replaced without camera evidence you can see for yourself. If a repair fails within 365 days, we return free and make it right. That’s the 365-Day Done Right Promise, written into every job.
Our San Antonio office coordinates dispatch for the whole metro. When you call (254) 276-4116, a live person answers. Not a voicemail tree, not a callback queue.
Styles & brands we work with
Our Gas Fireplace Repair Services in San Antonio
Flue Liner Installation (DuraFlex, HeatShield)
San Antonio’s clay-rich, high-water-table soils shift with drought and rain cycles. That movement cracks chimney structures, and in older central neighborhoods like Monte Vista, gas fireplace flues routinely crack at the throat and smoke chamber. When that happens, carbon monoxide can leak into living spaces before you ever see visible chimney damage outside. We install DuraFlex flexible liner systems and HeatShield ceramic repair compound to seal and reline damaged flues. Here’s the thing: we won’t recommend a liner unless our camera shows you exactly why you need one. You watch the footage on our screen, then you decide.
Damper Replacement and Repair
Wind-driven Hill Country rain gets past cracked chimney crowns and rusts the damper assembly shut. When that happens, your gas fireplace won’t draft, the pilot light snuffs out, and you get soot blowback on the mantel. We replace rusted dampers and rebuild damper seats. We work with top-lock and throat dampers, matching what your San Antonio home’s chimney was designed for, not whatever’s cheapest on the truck.
Chimney Crown Repair and Waterproofing
The crown is the concrete cap at the top of your chimney. San Antonio’s hot, humid summers and occasional severe thunderstorms beat on crowns year-round. Once a crown cracks, water gets in, rusts the damper, soaks the flue liner, and eventually seeps into your firebox. We repair crowns with proper crown-coat materials and apply waterproofing that breathes, so moisture doesn’t get trapped inside the masonry. In Hill Country homes north of Loop 1604, the freeze-thaw cycles on stone chimneys make crown maintenance even more critical. Small cracks become hidden voids, and those voids hold water that expands every time it freezes.
Gas Log Set Service and Burner Repair
Gas log sets vented into unlined or clay-tile flues crack from soil movement, and that’s a carbon monoxide risk. We service and repair gas log sets, burners, thermocouples, thermopiles, and pilot assemblies. We also clean first-degree creosote that hardens into glaze inside the flue when gas fireplaces are run occasionally at low temperatures. That glaze restricts draft, which is why your mantel sometimes gets a film of soot even with gas logs. If we find a venting problem, we show you the camera footage and fix the flue before we tune the burner.
What happens when you call
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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 San Antonio
We work with the brands chimney pros actually rely on. DuraFlex liner systems, Olympia Chimney, and Famco dampers are standards on our trucks. Copperfield accessories cover the small parts that wear out. Because our San Antonio office stocks common parts locally, we don’t usually need to schedule a second visit for a part order. That means faster turnaround whether you’re in Converse, Floresville, or anywhere else in the San Antonio metro.
Common Gas Fireplace Repair Problems We See in San Antonio Homes
- Cracked flue liners from soil movement. San Antonio’s expansive clay soils expand and contract with drought and rain. That stress cracks clay tile liners, especially in older central neighborhoods like Monte Vista, and carbon monoxide can seep through before any chimney damage is visible outside.
- Rusted damper assemblies from wind-driven rain. Hill Country thunderstorm winds push rain horizontally. Once water gets past a cracked crown, the damper rusts in place. The fireplace won’t draft and the pilot light keeps going out.
- Hardened creosote glaze from occasional low-temperature fires. Many San Antonio fireplaces get used a few times each winter, mostly for ambiance. Those low-temperature gas fires leave first-degree creosote that bakes into a hard glaze inside the flue. Gas appliance exhaust can’t push through it, which causes soot blowback.
- Hidden voids in stone chimneys north of Loop 1604. Hill Country stone chimneys go through freeze-thaw cycles that create voids inside the masonry structure. These voids are invisible from the ground and hold water, accelerating damage. A camera inspection catches them before they become structural problems.
See the difference
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After
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After
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AfterHow Much Does Gas Fireplace Repair Cost in San Antonio?
Here are the real numbers for San Antonio’s market. A standard gas fireplace service call, including burner cleaning and pilot assembly check, runs $149 to $249. Damper replacement in San Antonio typically costs $350 to $650 depending on whether it’s a throat damper or top-lock damper. Flue liner installation runs $2,400 to $4,800 for most older central San Antonio homes, depending on flue height and whether the existing clay tile needs removal. Chimney crown repair runs $350 to $700 for standard repairs, with full crown rebuilds reaching $900 to $1,400. Waterproofing adds $250 to $450. Every quote is written and handed to you before we touch anything. Call (254) 276-4116 for a free estimate, and we’ll tell you exactly what your fireplace needs and what it costs.
We Also Serve Cities Near San Antonio
Our San Antonio crews regularly work in Converse and Floresville, and throughout the surrounding metro. If you’re within a short drive of Loop 410 or Loop 1604, chances are we’re already servicing your neighborhood this week. Call us at (254) 276-4116 and we’ll confirm your address and get you scheduled.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio 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 San Antonio
Yes, and here’s why: San Antonio’s clay-rich soils shift constantly, which cracks chimney flues even when you rarely use the fireplace. A cracked flue leaks carbon monoxide whether the burner is on or not. An annual inspection with a camera catches these cracks before they become a hazard. Call (254) 276-4116 to schedule yours.
That smell is almost always creosote, and in Monte Vista’s older homes it’s usually baked into the flue from years of occasional low-temperature fires. When the gas burner shuts off, the warm air stops rising and the creosote odor sinks back down into the room. The fix is removing the creosote glaze and, if the flue is cracked, relining it. We’ll show you the inside of your flue on camera before we recommend anything.
Yes. Stone chimneys north of Loop 1604 develop voids because water seeps into small cracks, freezes, and expands. We locate those voids with a Level 2 camera inspection, then repair them with masonry techniques that restore structural integrity. The key is finding them early before a freeze-thaw cycle turns a small void into a major structural issue. Call (254) 276-4116 and we’ll scope your chimney.
Usually, yes. Wind-driven rain from San Antonio thunderstorms gets past cracked crowns or damaged caps, rusts the damper assembly, and interrupts the draft. When the draft fails, the pilot light starves for oxygen and goes out. We fix the crown or cap, clear the venting obstruction, and the pilot stays lit. If your pilot keeps dying after storms, call us at (254) 276-4116 for an inspection.
Yes, and we require it on every older home. A Level 2 inspection is the only way to see inside the flue, and in San Antonio’s older central neighborhoods like Monte Vista, Alamo Heights, and King William, soil movement cracks flues invisibly from the outside. We won’t touch a burner until we’ve scoped the venting and shown you the footage. That’s how we avoid selling you a liner you might not need, or missing one you definitely do.
Written by Cory Mitchell, Owner at Hadley Chimney San Antonio, serving San Antonio since 2003.
Book Your Gas Fireplace Repair in San Antonio
If your gas fireplace is acting up in San Antonio, call (254) 276-4116. We’ll answer live, schedule you in a tracked window, and send a background-checked tech who will show you exactly what’s wrong before any work begins. Written price first, camera evidence always, and every repair backed by the 365-Day Done Right Promise.