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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AfterFast, Reliable Gas Fireplace Repair Across Colleyville
Gas fireplace repair in Colleyville typically runs anywhere from $165 for a basic diagnostic and cleaning to $1,800 – $4,200 when an older fireplace needs a new flue liner or damper rebuild. Most diagnostic visits in Colleyville are completed the same week we hear from you, and every job comes with a written price before any work starts. If your gas logs are smoking into the room, shutting off on their own, or you smell gas when the fireplace runs, call (336) 863-3889 and a live person answers, day or night.
Colleyville is an unusual market for us. A lot of the homes here, especially the custom and semi-custom estate builds from the mid-1980s through early 2000s, were framed with two to four fireplaces per house. Many of those wood-burning fireboxes later had decorative gas log sets dropped in without a liner sleeve or damper plate. That was the shortcut of the DFW production-luxury era. We see the results of it on a weekly basis, from homes off Glade Road up through the neighborhoods near Heritage High School. We know what to look for before you spend a dollar.
Why Alcott Chimney Sweep Is Colleyville’s Preferred Gas Fireplace Repair Company
Colleyville homeowners tend to ask harder questions than most, and we like that. They want to know what’s actually wrong before they pay for a fix. So our default is simple: we run a camera down the flue and show you the footage on a monitor before recommending anything. No camera, no quote for liner work. That policy alone has saved Colleyville customers thousands of dollars they were about to hand to companies that never actually looked inside the flue.
Every technician who comes to your door in Colleyville is background-checked and identity-verified under what we call the Threshold Standard. You get the technician’s name and photo before the visit. The tech wears a photo ID badge and will show it before stepping inside. If you’re home alone, if you’ve got kids doing homework at the kitchen table, if you’ve had a bad experience with a contractor before, this process matters. It’s not an add-on or a premium option. It’s how we’ve operated since 2002, and it applies to every single visit.
Ruben Castellano runs the Alcott Chimney Sweep team, and he’s built the company around a principle most trade businesses won’t commit to in writing: a 365-Day Done Right Promise. If a repair we completed fails within the coverage period, the second visit is free. We put that on every repair in Colleyville, in writing, at no extra charge. When you’re dealing with gas appliances venting through a 30-year-old masonry chimney, that guarantee is the only honest way to do business.
Our Gas Fireplace Repair Services in Colleyville
Gas Fireplace Diagnostics With Camera Inspection
When a fireplace in a Colleyville home acts up, light-up failures, weak flames, gas odor, soot streaks above the opening, the cause is almost never the part you can see. It’s usually what’s behind it. Our diagnostic starts at $165 and includes a camera run down the flue so we can see the actual condition of the liner, the smoke chamber, and the damper. You watch the footage with us. We don’t quote liner work from a guess or from what a previous company wrote on an invoice a decade ago.
Flue Liner Installation for Retrofitted Gas Log Sets
This is the repair we do most often for Colleyville homes built between the mid-1980s and early 2000s. The original clay-tile flue was sized for wood burning. A decorative gas log set doesn’t need the same draft, but it absolutely needs a liner sized to the appliance’s BTU output and exhaust volume. Without one, combustion gases cool and condense inside an oversized clay flue, which accelerates spalling and can push carbon monoxide back into the living space. We install DuraFlex and HeatShield liner systems, both of which carry manufacturer warranties and are specified by chimney professionals nationwide. Typical liner installation for a single-flue Colleyville gas fireplace runs $1,800 – $3,600 depending on flue height and access.
Damper and Smoke Chamber Repair on Original 1980s – 2000s Masonry Fireplaces
Many Colleyville fireplaces have dampers that were rusted or warped at the time the gas logs were installed, or they’ve seized up since. A stuck-open damper in summer lets conditioned air escape up the chimney and invites birds. A damper that won’t open in winter sends gas fumes back into the great room. Damper repair or replacement in Colleyville typically runs $225 – $650. Smoke chamber parging, when the mortar joints have cracked and eroded, runs $800 – $1,900 depending on the chamber size. These aren’t optional extras on a gas fireplace. They’re the difference between a fireplace that vents and one that doesn’t.
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 Colleyville
We stock and install professional-grade fireplace repair materials in Colleyville: DuraFlex and HeatShield liner systems, Gelco sealants for crown and joint work, Olympia Chimney components, and Famco dampers and caps. These aren’t the box-store substitutes you’ll find at a big-box retailer. They’re the brands chimney professionals specify because they hold up under the thermal cycling a North Texas chimney goes through every time a cold front rolls in from October through March. Because we keep common parts in our Dallas-Fort Worth office inventory, we can often complete a Colleyville repair in one trip rather than ordering and returning a week later.
Common Gas Fireplace Repair Problems We See in Colleyville Homes
- Gas logs dropping into unlined wood-burning flues. This is the big one in Colleyville. A decorative gas log set was installed in a firebox built for wood, but nobody sized or installed a liner for the smaller gas appliance. The flue is now oversized, inefficient, and slowly deteriorating. The homeowner has no idea because the firebox looks fine.
- Clay soil heaving cracking the crown and mortar joints. Colleyville sits on Blackland Prairie clay that expands when wet and shrinks when dry. Over 20 – 30 years that movement cracks chimney crowns and opens joints, letting water into the flue. The liner starts spalling from the inside out, where you can’t see it until a camera goes down.
- Summer nesting blocking the flue. Chimney swifts and starlings love an unused Colleyville chimney from May through September. First cool front in October, the gas logs get lit, and the smoke has nowhere to go but back into the den. We’ve pulled nests out of flues that hadn’t been swept since the day the gas logs were installed.
- Thermocouple and pilot assembly failures on aging gas valves. These are the mechanical failures, separate from the chimney structure. A thermocouple that’s been heat-cycling for 15 years stops registering flame and the gas valve shuts itself off. We replace thermocouples, pilot assemblies, and thermopiles in Colleyville gas fireplaces regularly, typically for $185 – $425 before any flue work.
Pricing for Gas Fireplace Repair in Colleyville, TX
We give straight numbers because that’s what Colleyville homeowners ask for. A standard gas fireplace diagnostic with camera inspection runs $165 – $225. Thermocouple or pilot assembly replacement runs $185 – $425. Damper repair or replacement runs $225 – $650. Smoke chamber parging runs $800 – $1,900. Flue liner installation, the repair we recommend most often in this market, runs $1,800 – $3,600 for a single-flue retrofit, and a full HeatShield resurfacing job runs $2,800 – $4,200 when the original clay tiles have spalled badly. The price is affected by flue height, roof pitch, and access, all of which we evaluate before quoting. Our Gas Fireplace Repair team writes every estimate before work begins, and you approve it first. No line items appear after the fact. Call (336) 863-3889 for a free estimate, and we’ll tell you exactly what we found before we ask you to spend anything.
We Also Serve Cities Near Colleyville
Beyond Colleyville, our crews cover Bedford, Euless, Southlake, and Hurst. If you’re just over the city line off Cheek-Sparger Road or anywhere along the 121 corridor, we can typically schedule within the same week. The same camera-first policy and written guarantees apply everywhere we go.
Serving Colleyville, TX - Our Local Coverage Area
We’re based in the Colleyville 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 Colleyville
The only way to know is to put a camera down the flue. In Colleyville, homes built in the 1990s and early 2000s frequently had gas log sets installed into original clay-tile flues with no liner sleeve. A camera inspection takes about 20 minutes per flue and shows you the exact condition of the liner, the smoke chamber, and the damper. We show you the footage live on a monitor before we recommend anything. If the flue was never lined, the camera will show raw clay tile, often with spalling mortar and cracks. Call (336) 863-3889 to schedule inspections for all three fireplaces in one visit, and we’ll quote the liners only if the footage actually justifies them.
Gas logs that keep going out usually point to a failing thermocouple or pilot assembly, while smoking into the room points to a blocked or oversized flue. In Colleyville homes with retrofitted gas logs, the most common culprit for smoke is a flue that was never lined for gas. The oversized clay flue cools combustion gases too quickly, killing the draft and pushing exhaust back into the room. On a tree-lined interior street off Glade Road, a Colleyville homeowner called us because their great-room gas logs kept extinguishing themselves a few minutes after light-up. We pulled the log set, ran a camera down the original clay-tile flue, and found a crushed tile joint and heavy spalling mortar shedding into the smoke chamber, the kind of blockage no surface inspection would show. We showed the homeowner the footage, then installed a DuraFlex flue liner sized to the appliance. The logs have drafted cleanly since. Call (336) 863-3889 and we’ll find out which problem you actually have.
Yes. Colleyville sits on Blackland Prairie clay that expands when wet and shrinks when dry. Over decades of North Texas wet-dry cycles, that movement stresses chimney foundations and cracks the concrete crown at the top of the stack. Once the crown cracks, water gets into the mortar joints and the flue from above. An unlined gas flue is especially vulnerable because gas exhaust is cooler and wetter than wood smoke, which accelerates interior spalling. We check the crown and exterior mortar joints on every Colleyville gas fireplace repair, because that’s where the flue damage usually starts, years before you see signs inside the house.
Ask for the camera footage. Any legitimate chimney professional should be able to show you video of the exact damage that justifies a liner replacement. In Colleyville, where gas log sets were commonly dropped into unlined wood-burning flues, some companies use that retrofit history to sell liner work the home might not actually need. Our policy at Alcott Chimney Sweep is non-negotiable: no liner recommendation without camera evidence you have personally watched on our monitor. If the flue is cracked, spalled, or undersized for the appliance, you’ll see it. If it’s not, we’ll tell you the fireplace can safely wait, and we’ll put that in writing. Call (336) 863-3889 and you’ll get the truth with the footage to back it up.
Yes. NFPA 211 applies to all chimneys, fireplaces, and venting systems, gas included. The National Fire Protection Association recommends an annual inspection because gas appliances produce carbon monoxide and can vent that gas into the living space if the flue is blocked, cracked, or incorrectly sized. In Colleyville, where many gas log sets were retrofitted into flues that were never designed for gas, the annual inspection is the only way to catch a deteriorating liner before it becomes a carbon monoxide problem. The inspection also catches summer bird nests before they smoke the house on the first cold front. Since 2002, our position has been simple: gas fireplaces still vent through a chimney, and chimneys still fail. Have it inspected annually, especially if it hasn’t been looked at since you bought the house. Call (336) 863-3889 to schedule, and a live person will answer.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, serving Colleyville homeowners since 2002 as part of the Threshold Group family of home-service companies.