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 Leon Valley
Gas fireplace repair in Leon Valley typically costs between $150 and $550 depending on what’s actually wrong, and most jobs can be diagnosed and fixed the same week. We’ve worked on hundreds of Leon Valley fireplaces, from 1960s ranch homes off Bandera Road to newer builds near Huebner Road. If your flame looks lazy, your pilot won’t stay lit, or you smell gas, call (254) 276-4116 and we’ll walk through what you’re seeing before anyone gets in a truck.
Why Hadley Chimney San Antonio Is Leon Valley’s Preferred Gas Fireplace Repair Company
Hadley Chimney Sweep has been doing chimney and fireplace work since 2003, and our Gas Fireplace Repair team knows Leon Valley’s housing stock better than most. The 1960s-to-1980s ranch homes here share a specific construction pattern: masonry fireplaces with clay tile flue liners sitting on expansive clay soil. That combination produces failures we see over and over, and it means we arrive already knowing what to check.
Customers in Leon Valley get the same thing every time: a live person answers when you call, you get a written price before work starts, and your tech shows up in a tracked arrival window wearing a uniform and carrying a background check. That’s the Relay Visibility Guarantee, and it’s not a promo. It’s how we run every job, including yours.
Every repair carries a written 365-Day Done Right Promise. If the fix doesn’t hold, we come back and make it right at no charge. That’s the kind of accountability Leon Valley homeowners tell us they’ve been missing from other chimney companies.
Styles & brands we work with
Our Gas Fireplace Repair Services in Leon Valley
Gas Fireplace Repair
When a gas fireplace in Leon Valley stops working right, the cause is usually one of three things: a thermocouple or thermopile that’s gone weak, a burner that’s corroded from our humid air, or venting that’s shifted because the clay soil under the foundation moved. We diagnose all three on the first visit. Our techs carry common parts on the truck, and we work with DuraFlex and Olympia Chimney components when a repair needs new hardware. The goal is a crisp blue flame and stable draft before we leave.
Gas Log Set Repair
Vented gas log sets in Leon Valley homes take a beating from humidity. The burner tubes corrode, the sand or vermiculite packing hardens, and the logs themselves can crack from repeated heating and cooling. If your logs won’t light evenly or you see yellow sooting on the media, the log set likely needs a burner replacement or media refresh. We service all major brands and can usually match your existing set’s look so the fireplace still feels like the one you bought.
Draft Hood Inspection and Replacement
This is a repair Leon Valley homeowners rarely know to ask for, but it’s one of the most important. The draft hood sits where your gas logs connect to the flue, and it’s the first thing to corrode in humid air. A rusted or warped draft hood lets combustion gases spill into the room instead of venting up the chimney, and that’s a carbon monoxide risk you can’t see. We inspect the draft hood on every gas fireplace service call, and we replace it when it’s compromised.
Gas Fireplace Safety Inspection
Around Leon Valley, we recommend a gas fireplace inspection every fall before you light it for the season. That’s especially true for older ranch homes where clay tile flue liners may have cracked since last winter. Our inspection includes checking the burner, pilot assembly, thermocouple, draft hood, and visible flue path. You’ll get photos showing exactly what the tech saw, so you’re never taking a price on faith.
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 Leon Valley
We stock and install parts from brands chimney professionals actually use, including DuraFlex flexible liner systems, HeatShield ceramic repair compound, and Gelco chimney components. That matters in Leon Valley because many gas fireplaces we service pair a gas log set with an older masonry flue that needs a liner or firebox repair before the gas appliance can safely vent. Using materials built to last means a repair doesn’t turn into a repeat call next year. If your system needs a part we don’t have on the truck, we’ll get it ordered and back out to you quickly, and you’ll know the timeline before we leave.
Common Gas Fireplace Repair Problems We See in Leon Valley Homes
Leon Valley’s combination of expansive clay soil, high humidity, and mild winters creates a specific set of gas fireplace failures. Here’s what we run into most often:
- Cracked firebox floors from clay-soil movement. Expansive clay under slab foundations swells and shrinks with seasonal moisture, and that movement transfers up through the masonry. We regularly find firebox floors cracked in homes off Bandera Road and Huebner Road, which then destabilizes the gas log set and allows heat to reach the framing below.
- Corroded burners and draft hoods from high humidity. Leon Valley’s muggy summers expose metal fireplace components to moisture even when the fireplace isn’t running. That’s why burners clog, pilots fail, and draft hoods rust through faster here than in drier parts of Texas.
- Pilot outages from dust and spider webs. Gas fireplaces that sit unused from March to November collect dust, spider silk, and the occasional wasp nest in orifices and venting. When you finally fire it up in December, the pilot won’t hold or the flame burns weak and sooty.
- Venting problems from displaced flue liners. Clay soil settles and shifts, sometimes moving the flue liner out of alignment with the firebox. Exhaust then leaks into wall cavities instead of going up and out. This is the failure mode we flag most carefully during a Leon Valley safety inspection.
See the difference
Before
After
Before
After
Before
AfterPricing for Gas Fireplace Repair in Leon Valley, TX
Here’s what we tell Leon Valley homeowners to expect before we ever arrive. A gas fireplace diagnostic visit runs $89 to $149. Replacing a thermocouple or thermopile typically sits between $150 and $250 including the part. A burner or pilot assembly replacement usually lands between $275 and $450. Draft hood replacement, which includes checking venting alignment, runs $300 to $550 depending on whether the flue needs reseating. If we find a cracked firebox floor or a damaged clay tile liner, repairs start around $600 and go up based on what the camera inspection shows. Every job gets a written price before work starts, and the estimate is free. Call (254) 276-4116 and we’ll give you a real number on the phone, not a range that doubles when the tech arrives.
We Also Serve Cities Near Leon Valley
If you’re searching for Gas Fireplace Repair in Leon Valley, chances are you’re near one of our other service areas too. We handle gas fireplace repair across the northwest San Antonio metro, including Leon Valley itself, and we also regularly work in San Antonio, Selma, Timberwood Park, and Kirby. Wherever you’re calling from, the same written pricing and photo-documented repairs apply.
Serving Leon Valley, TX - Our Local Coverage Area
We’re based in the Leon Valley 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 Leon Valley
Because the flue liner is the part most likely to fail silently in a Leon Valley home, even one where the fireplace barely gets used. Expansive clay soil under your slab shifts with seasonal moisture, and that movement can crack clay tile liners over time. A cracked liner leaks exhaust into the wall cavity whether you burn once a year or every weekend. We scope the flue with a camera on every gas fireplace inspection, and you’ll see the photos yourself. Call (254) 276-4116 to schedule one, and the estimate is free.
High humidity causes metal gas fireplace components to corrode faster than they would in a drier climate, and Leon Valley’s summers are consistently humid. Burner tubes, pilot assemblies, and draft hoods all oxidize over time, which leads to clogged orifices, weak pilot flames, and delayed ignition. The corrosion can also create small gas leaks at fittings, which is why we check every connection with a gas sniffer during a repair. If your flame looks weak or yellow, that’s often the first sign.
Before the first freeze, check that your pilot lights on the first try and stays lit, that the flame is mostly blue with minimal yellow tipping, and that you don’t smell gas when the fireplace is off. Also look behind the log set for visible rust or flaking on the burner and draft hood. But the most important check is one a tech has to do: make sure the flue path is clear and intact after a year of clay-soil movement and humidity. That’s what our fall inspection covers. Call (254) 276-4116 to get on the schedule before the cold snap hits.
Yes, and in Leon Valley it’s a leading cause of gas fireplace venting failures. Expansive clay soil swells when wet and shrinks when dry, and over decades that cycle shifts slab foundations enough to crack masonry fireboxes and displace flue liners. We see this most often in 1960s-to-1980s ranch homes, especially in the neighborhoods around Huebner Road and Bandera Road. A displaced vent lets exhaust leak into the home, which is a carbon monoxide hazard you can’t detect by sight or smell.
A lazy yellow flame in a gas fireplace means incomplete combustion, and in Leon Valley that’s usually caused by one of three things: a clogged burner from dust or corrosion, inadequate draft from a blocked or damaged flue, or a corroded draft hood that’s no longer pulling combustion gases properly. None of those improve on their own. We can diagnose the cause on a single visit and give you a written price before any repair work begins. Call (254) 276-4116 and tell us what your flame looks like. We’ll tell you what to expect before we get there.
One More Thing About Gas Fireplaces in Leon Valley
Leon Valley sits at the edge of the Texas Hill Country, and that position creates a unique failure pattern for gas fireplaces. Older ranch homes here were built on expansive clay, not the limestone you find a few miles east in San Antonio. When clay soil moves, it doesn’t just crack driveways and door frames. It transfers force up through the fireplace masonry, cracking the firebox floor and sometimes knocking the flue liner out of alignment. We ran a gas fireplace repair on a Huebner Road-area ranch built in 1974 where the homeowner complained of a lazy yellow flame and occasional gas smell. Our tech pulled the logs and found the firebox floor cracked from clay-soil movement and a corroded draft hood. After confirming the flue path with a Level 2 inspection, we rebuilt the firebox base with proper refractory and installed a new draft hood, bringing the flame back to a clean blue and stabilizing venting. That’s not a rare find in Leon Valley. It’s the repair we expect to make when a home from that era calls in with gas fireplace trouble.
Written by Cory Mitchell, Owner at Hadley Chimney San Antonio, serving Leon Valley with gas fireplace repair and chimney services.