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 Alamo Heights
Gas fireplace repair in Alamo Heights typically runs $165 – $485 depending on what’s actually wrong, and most diagnostic visits happen within one to two business days. If your glass is sooting black, the pilot won’t stay lit, or you smell gas, call (254) 276-4116. We serve the tree-lined streets of Alamo Heights every week, and we never recommend a repair without first showing you camera footage of the problem. Cory Mitchell and the Hadley Chimney San Antonio crew know exactly how these 1920s – 1950s bungalows and ranch homes behave, because we work on them constantly.
Here’s what happens when you book with us: a background-checked, uniformed technician arrives in a live-tracked window, not a four-hour guess. You get the price in writing before any work starts. You see before-and-after photos of the repair. And every repair carries a written 365-day guarantee with a free second visit if anything fails. That’s the Relay Visibility Guarantee, and it applies to every single job in Alamo Heights.
Key takeaways for Alamo Heights homeowners:
- Older flues built for wood are the root cause of most gas fireplace failures here. We verify with a camera before recommending anything.
- Top-sealing dampers and HeatShield flue resurfacing fix the two most common problems we see in 1920s – 1950s Alamo Heights homes.
- A written price comes before work starts, every time, no exceptions.
- Calls are answered by a live person 24/7 at (254) 276-4116.
Why Hadley Chimney San Antonio Is Alamo Heights’s Preferred Gas Fireplace Repair Company
Hadley Chimney San Antonio was founded in 2003 and has spent more than two decades on the specific quirks of San Antonio-area chimneys, including the older masonry stacks that define Alamo Heights. Homeowners in the 78209 zip and around Cambridge Elementary, Blue Star Arts Complex, and the Quarry Market area call us because our Gas Fireplace Repair team shows proof before any recommendation. We don’t tell you a liner is shot because the truck is light that day. We put a camera up the flue, hand you the tablet, and walk you through exactly what we’re seeing.
That approach matters even more in Alamo Heights, where a lot of honest repair work gets misdiagnosed as a full liner replacement or firebox rebuild. The older the home, the easier it is for a pushy contractor to scare a homeowner into a job they don’t need. Our standing policy across every Alamo Heights visit is simple: nothing gets recommended without camera evidence the homeowner can see. If the flue is fine, we say so and we write that down.
Every repair is backed by the 365-Day Done Right Promise, a written guarantee with a free second visit if the repair fails. That’s not a promo. It’s how we’ve operated since 2003, and it applies to gas log service, damper replacement, pilot assembly repair, and flue relining alike. Combined with live arrival tracking, before-and-after photo documentation, and digital invoicing through the Relay Visibility Guarantee, you get the same transparency from your chimney tech that you’d expect from a rideshare driver.
Styles & brands we work with
Our Gas Fireplace Repair Services in Alamo Heights
Gas Fireplace Flue Inspection with Camera
Before anything else, we scope the flue. In Alamo Heights, the biggest unknown is whether a gas log set or insert is venting through an original unlined or narrow clay-tile flue built for wood. We send a camera up and show you footage of the liner condition, creosote loading, and any blockages. The inspection tells us whether you need a sweep, a HeatShield resurfacing, or just a control board fix. You see the same footage we base the recommendation on.
HeatShield Flue Liner Repair
HeatShield is a ceramic repair compound we use to resurface damaged flue liners without tearing out masonry. In older Alamo Heights homes with spalling clay tiles or cracked mortar joints, this can restore a safe flue at a fraction of a full reline. We’ve used HeatShield extensively in the bungalows and ranch homes around Lincoln Heights and Olmos Park Terrace. The written guarantee covers the HeatShield application just like any other repair.
Top-Sealing Damper Replacement
The original throat dampers on 1950s Alamo Heights chimneys rust open or seize from decades of humid summers. A rusted-open damper lets conditioned air escape year-round and can backdraft gas exhaust into the living space. We replace worn dampers with top-sealing models that keep humidity, birds, and drafts out of the flue. It’s one of the highest-value repairs we do in this neighborhood, because the humidity fights against older metal components constantly.
Gas Log Set and Pilot Assembly Service
If your logs soot up quickly, the flame burns yellow at the edges, or the pilot won’t hold, the problem is almost always draft or gas pressure, not the logs themselves. In Alamo Heights, narrow clay-tile flues restrict the air a modern gas log set needs. We clean the burner, check gas pressure, verify draft at the damper, and test the thermocouple and thermopile. If a replacement part is needed, we quote it in writing before ordering anything.
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 Alamo Heights
We stock and install parts from DuraFlex flexible liner systems, HeatShield ceramic repair compound, and Olympia Chimney components, so most repairs in Alamo Heights don’t wait on shipping. If your existing insert or log set was built around these systems, we can usually match the replacement part on the first visit. For older masonry flues being relined for gas use, DuraFlex gives us a liner that’s sized and insulated correctly, and HeatShield remains our go-to for spot repair when the original clay tiles are failing. We’d rather use materials chimney pros actually rely on than whatever is cheapest on the truck.
Common Gas Fireplace Repair Problems We See in Alamo Heights Homes
- Gas logs venting into unlined or clay-tile flues built for wood. The flue was sized for a wood fire, not a gas appliance. The resulting condensation is acidic, which corrodes gas valves, burners, and dampers faster than in newer suburbs with purpose-built gas venting.
- Black soot on glass and logs. Narrow clay-tile flues from 1920s – 1950s bungalows restrict draft. Incomplete combustion deposits soot on the glass within days, and if the draft is bad enough, carbon monoxide can build up inside the home.
- Rusted or seized 1950s dampers. Alamo Heights humidity attacks iron dampers from both directions. Once rusted open, the damper leaks conditioned air year-round and invites backdrafting when the fireplace runs.
- Spalling brick and eroded mortar at the flue crown. Decades of wood smoke combined with high humidity creates acidic conditions that eat away at mortar. You’ll see flaking brick faces on the chimney exterior, and that same moisture works its way down into the firebox and gas components.
See the difference
Before
After
Before
After
Before
AfterPricing for Gas Fireplace Repair in Alamo Heights, TX
Here’s what Alamo Heights homeowners can expect to pay, based on the jobs we’ve completed in this market. A diagnostic visit with full camera inspection runs $165 – $225. Pilot assembly or thermocouple replacement typically lands at $190 – $320. Top-sealing damper replacement runs $350 – $600 depending on flue size. HeatShield flue resurfacing averages $900 – $2,400 when the liner needs coating but not full replacement, while a full DuraFlex stainless reline for gas use starts around $2,800 and goes up with flue height. These are honest ranges for Alamo Heights, not teaser prices. We give you a written number before any work begins, and if the job can wait safely, we’ll tell you that too. Call (254) 276-4116 for a free estimate.
We Also Serve Cities Near Alamo Heights
Our crews cover all of Alamo Heights and the surrounding area, including San Antonio, Selma, Timberwood Park, and Kirby. If you’re outside the immediate neighborhood but still inside Bexar County, give us a call and we’ll let you know when we can get a tech out. Scheduling is coordinated from our San Antonio office, and the same written-price, camera-proof policy applies everywhere we go.
Serving Alamo Heights, TX - Our Local Coverage Area
We’re based in the Alamo Heights 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 Alamo Heights
That smell is almost always creosote or soot residue inside the flue being pulled back into the house by air pressure, especially on humid days or when bathroom fans run. In Alamo Heights, unlined or clay-tile flues from the 1920s – 1950s absorb wood smoke from decades past, and humidity releases the odor. A camera inspection will show you exactly what’s coating the flue, and a sweep plus a top-sealing damper usually fixes it. Call (254) 276-4116 for an inspection.
In most older Alamo Heights homes, no. An original clay-tile flue rated for wood isn’t sized or rated for gas exhaust, and venting gas through it creates acidic condensation that eats the liner from the inside out. Some homeowners do it anyway and then fight constant sooting and failed components. We’ll scope the flue and show you on camera whether a liner upgrade is required before any gas conversion, and we’ll quote the reline in writing if it is.
Every year, even if the fireplace runs fine. Alamo Heights’s humid subtropical climate causes condensation inside the chimney that accelerates mortar erosion and corrodes metal components, and small problems become big ones during cold snaps when everyone starts using their fireplaces. An annual camera inspection costs less than most emergency repairs, and it satisfies the National Fire Protection Association’s annual inspection standard. We’ll set a reminder for next year.
Black glass is a draft problem, not a cleaning problem. When a gas log set vents through a narrow clay-tile flue that was built for wood, the flame starves for air and produces soot, which deposits on the glass within days. Fixing it means addressing the flue’s draft, either with a liner upgrade, a damper adjustment, or a burner service. We’ll diagnose the draft on site with actual measurements, not guesses.
Spalling is when brick faces flake off because moisture has gotten inside the masonry and expanded during freeze-thaw cycles. In Alamo Heights, decades of acidic wood smoke combined with humid air accelerates the mortar erosion behind the spalling. It matters for gas fireplace repair because the same moisture path that ruins exterior brick also corrodes dampers, firebox panels, and gas components inside. We’ll inspect both the exterior and the flue interior and give you a single written scope for everything we find.
Book Your Alamo Heights Gas Fireplace Repair
If your gas fireplace needs attention, call (254) 276-4116 or book online. A live person answers 24/7. We’ll schedule a tracked-arrival visit, scope the flue on camera, show you exactly what we see, and put the price in writing before any tool comes off the truck. Cory Mitchell and the Hadley Chimney San Antonio team serve Alamo Heights daily, and every repair is covered by the 365-Day Done Right Promise and the Relay Visibility Guarantee.
Written by Cory Mitchell, Owner at Hadley Chimney San Antonio, serving Alamo Heights since 2003.