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.
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After
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AfterFast, Reliable Gas Fireplace Repair Across Houston
A gas fireplace that won’t light – or worse, one that lights and then pushes exhaust back into your living room – is a problem that shows up fast when a cold front hits Houston. Most gas fireplace repairs in Houston run between $180 and $450 for common fixes like thermocouple replacement, pilot assembly rebuilds, or burner cleaning. Major work like flue liner resurfacing or firebox replacement typically lands between $900 and $2,800. If you’re in Houston and the fireplace is acting up, call Alcott Chimney Sweep at (336) 863-3889. We send a background-checked, identity-verified technician to your door, and you’ll know their name and see their photo before they arrive.
Why Alcott Chimney Sweep Is Houston’s Preferred Gas Fireplace Repair Company
Houston homeowners don’t burn their fireplaces hard. Most gas logs get lit fewer than 20 times a year, usually during the handful of cold fronts that push through between December and February. That means the real work here isn’t cleaning out heavy creosote. It’s diagnosing what happens to a chimney that sits idle in 80 percent humidity for ten months at a stretch. Our Gas Fireplace Repair team has worked on enough Houston houses to know exactly what to look for before we ever open the firebox.
Since 2002, Alcott Chimney Sweep has been part of the Threshold Group family of home-service companies. What that means for you is simple: every technician who shows up at your Houston home has passed a background check and identity verification before they ever step on your property. That’s the Threshold Standard, not an optional upgrade. We text you the technician’s name and photo before the visit. When they arrive, they show a photo ID badge at the door. Every time, no exceptions. Ruben Castellano built this company around the idea that you should never have to wonder who’s about to walk through your door.
We serve the entire Houston metro area, from the inner-loop bungalows in the Heights to the 1980s brick-veneer tracts in Clear Lake and Katy. Dispatch and scheduling are coordinated from the Alcott Chimney Sweep office in Houston, and our crews live and work here. We’re not a call center farming out jobs to whoever’s available. The person who answers your call knows the difference between a Garden Oaks masonry chimney and a Pearland zero-clearance firebox.
Our Gas Fireplace Repair Services in Houston
Gas Fireplace and Gas Log Set Inspection with Camera Documentation
We start nearly every gas fireplace repair in Houston with a Chimney Inspection - Houston. That’s not an add-on. It’s how we work. If your gas logs light but the room smells faintly of exhaust on cold-front days, we run a camera up the flue and show you exactly what we see on the monitor. Nothing gets recommended that isn’t on the screen. In Houston, where fireplaces sit idle for most of the year, the camera often catches problems the homeowner never suspected: cracked clay tiles from the February 2021 hard freeze, rust perforation in the firebox steel, or a damper that’s swollen shut from Gulf humidity. You get the footage, and you get a written report explaining what’s urgent and what can safely wait.
Flue Liner Evaluation and HeatShield Resurfacing for Older Masonry Chimneys
Homes in the Heights, Montrose, and Garden Oaks often have original pre-1950s masonry chimneys with clay-tile flue liners. Decades of Houston humidity and the sustained sub-20°F temperatures during Winter Storm Uri have left a lot of those liners cracked and spalling. When a gas appliance vents into a degraded flue, draft weakens and combustion gases can spill back into the living space on startup. We evaluate the liner with the camera, then explain your options in plain English. If the damage is limited to a specific section, Heatshield in Houston can restore the flue without a full rebuild. We use the same professional trade brands that masonry contractors specify, never box-store substitutes.
Chimney Cap and Crown Repair to Stop Gulf Humidity Intrusion
A crumbling mortar crown or a missing chimney cap in Houston is an open invitation for moisture. Given that the air here routinely carries 75 to 90 percent relative humidity, water gets into the flue and the firebox and stays there. We rebuild mortar crowns, install proper caps with animal guards, and seal the areas where moisture enters. One thing every Houston homeowner should know: chimney swifts – the migratory birds that nest in uncapped flues across the Texas Gulf Coast from roughly April through October – are federally protected under the Migratory Bird Treaty Act. If there are active eggs or chicks in the flue, it is a federal offense to disturb them. Our Houston scheduling always accounts for that window. We recommend cap and crown repairs before April or after confirmed swift departure in the fall. That timing constraint is specific to the Gulf migration corridor, and it’s one of the reasons local experience matters.
Firebox and Burner Repairs for Factory-Built Units
The vast tracts of 1970s through 1990s homes in Katy, Pearland, and Clear Lake contain something older neighborhoods mostly don’t: factory-built zero-clearance metal fireplaces. These look like masonry from the outside, but the firebox is steel. Houston humidity corrodes that steel. We routinely open a firebox in a Pearland home and find the gas log set glowing on the surface while the steel behind it has perforated through. Degraded dampers, corroded gaskets, and rusted burners are all common in these systems. We inspect, show you the damage on camera, and give you a written price before any work starts.
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 Houston
When a repair requires replacement parts, the quality of those parts determines whether the fix lasts one season or ten. Alcott Chimney Sweep carries and installs professional trade materials like HeatShield, Gelco, Olympia Chimney, and Famco – the same lines chimney professionals specify, not improvised substitutes from a big-box shelf. For Houston homeowners, that matters. The humidity here punishes cheap components faster than drier markets. We stock common replacement parts locally and can source specialty components quickly, which means fewer days without a working fireplace when the next cold front rolls through.
Common Gas Fireplace Repair Problems We See in Houston Homes
- Freeze-cracked clay flue tiles from Winter Storm Uri. The February 2021 hard freeze pushed temperatures below 20°F for days in Houston, cracking flue tiles and mortar crowns in chimneys that were never engineered for sustained cold. We still find that damage on inspections in 2026, usually in homes where the fireplace has barely been used since.
- Rust-through in factory-built zero-clearance fireboxes. Near-year-round humidity in Houston corrodes the steel fireboxes and dampers in 1980s and 1990s homes. The gas log set appears to work, but the firebox steel behind it is perforated, which is a safety problem that only shows up on a camera inspection.
- Chimney swift nesting debris blocking or restricting the flue. Uncapped Houston flues that sat through an April-to-October swift season often contain nesting material that restricts draft. On a gas fireplace, a blocked flue can trip the spill switch or produce a faint exhaust smell the homeowner assumes is just the burner.
- Reverse drafting on cold-front days. We see this most often in older masonry homes. Cracked liners and crumbled crowns let in Gulf moisture, which cools the flue and weakens the draft. The fireplace lights, but exhaust rolls out into the room instead of up the chimney.
Pricing for Gas Fireplace Repair in Houston, TX
Here’s what we tell every Houston homeowner before we book a visit: a standard gas fireplace service call in Houston runs $95 to $175 for the diagnostic, which includes the camera inspection and a full written report. Common repairs – thermocouple replacement, pilot assembly rebuild, burner cleaning, gas valve adjustments – typically run $180 to $450. Flue liner repairs using HeatShield resurfacing for older masonry chimneys usually fall between $900 and $1,800 depending on how much of the liner is compromised. A full firebox replacement in a factory-built unit can run $1,500 to $2,800. Every job comes with a written price before any work starts, a written guarantee on every repair, and a free return visit if the repair fails within the coverage period. That’s the 365-Day Done Right Promise. Call (336) 863-3889 for a free estimate, and we’ll give you a real number, not a guess.
We Also Serve Cities Near Houston
Alcott Chimney Sweep covers the Houston metro area and the surrounding communities. Our Gas Fireplace Repair technicians regularly work in Galena Park, Pasadena, Channelview, and South Houston. If you’re just outside the city and your gas fireplace is acting up, call us and we’ll confirm our availability in your area.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston 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 Houston
A gas fireplace that smells like exhaust on cold-front days is usually dealing with a draft problem, not a burner problem. In Houston, the most common causes are freeze-cracked clay tiles, a crumbled mortar crown letting in Gulf humidity, or an uncapped flue that held a chimney swift nest all summer. All three weaken the draft when outdoor temperatures drop enough to reverse the pressure differential. The fix starts with a camera inspection of the flue, and nothing should be recommended without that footage in your hand. Call (336) 863-3889 to book one.
If an active chimney swift nest with eggs or chicks is present in the flue, no. Chimney swifts are federally protected under the Migratory Bird Treaty Act, and disturbing an active nest is a federal offense. During the April-through-October window, the work we can do depends on what the camera shows. We can diagnose, document, and plan repairs, but any work that requires opening, capping, or cleaning a flue with an active nest has to wait until the birds leave. We schedule Houston gas fireplace repairs with that window in mind, which is why pre-season inspections in March or post-season repairs in November are the smart move.
Yes, and in fact those factory-built zero-clearance fireplaces in Katy, Pearland, and Clear Lake are some of the most repair-prone units we see in Houston. The steel fireboxes rust through in the humidity, damper gaskets degrade, and the burners corrode even when the fireplace is rarely used. The gas log set can look fine on the surface while the steel behind it is perforated. A camera inspection is the only way to know, and it’s included in every diagnostic visit. Call (336) 863-3889 for a free estimate.
Yes. The February 2021 hard freeze cracked clay flue tiles and mortar crowns across the Houston metro, and we still find that damage on inspections in 2026. Most homeowners never connected the two because the fireplace has barely been used since. But cracked flue tiles weaken draft and can let combustion gases spill into the living space on startup. If your chimney went through Uri without an inspection, it’s worth a camera look.
We carry and install HeatShield, Gelco, Olympia Chimney, and Famco – professional trade brands that chimney professionals specify, not box-store substitutes. For Houston’s humidity and the freeze damage we see from Uri, HeatShield resurfacing is often the right call for older masonry chimneys with cracked clay tiles. For factory-built units, we source OEM or professional-grade replacement components that hold up to Gulf Coast conditions. Call (336) 863-3889 and we’ll walk you through what your specific repair needs.
Call Alcott Chimney Sweep for Gas Fireplace Repair in Houston
If your Houston gas fireplace won’t light, smells like exhaust on cold-front days, or hasn’t been looked at since the 2021 freeze, don’t put it off until the next front arrives. Call Alcott Chimney Sweep at (336) 863-3889 for a free estimate. You’ll get a live person on the phone, a written price before any work starts, and a technician whose name and photo you’ll see before they knock. Ruben Castellano and the whole Houston team stand behind every repair with the 365-Day Done Right Promise.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, serving Houston since 2002.