Gas fireplace service
Sweep & inspection
Caps & crowns
Flue relining
Masonry repairLevel 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.
Why Austin Homeowners Choose Gelco Chimney Cleaning
We’re an independent Gelco service in Austin and the surrounding Travis County area. Most Gelco chimney cleanings in Austin run between $189 and $289, and our crews work on these systems every week, so we know the difference between a liner that needs a sweep and one that needs structural repair. We’re not affiliated with or authorized by Gelco, which means we don’t parrot their marketing copy. We tell you what’s actually happening inside your flue, based on what we see during the inspection. Call (254) 274-4486 for a written quote before any work starts.
Gelco builds solid chimney components, but Austin’s climate does things to metal and masonry that no manufacturer brochure covers. Our field experience with Gelco Insul-Flue liners, Universal Chimney Tops, and rigid stainless systems across Austin neighborhoods from Hyde Park to Mueller gives us repair insight that generic our Chimney Sweep services simply don’t have.
Why Trust Ashby Chimney Austin for Your Gelco Chimney Cleaning?
Nathan Corliss has been cleaning and inspecting chimneys in Austin for well over a decade. He learned the trade through the building trades program at Los Angeles Trade-Technical College before building his crew across Central Texas, and homeowners from Tarrytown to the Mueller neighborhood know him as the technician who shows up on time, names the price before he picks up a brush, and puts everything in writing. When it comes to Gelco products specifically, our crews have removed creosote from Insul-Flue refractory panels, diagnosed galvanic corrosion on Universal Chimney Top brackets, and repaired rigid stainless liner sections that warped in Austin’s summer heat. That’s not brand marketing. That’s field experience.
Every Gelco job we take follows the same rules as every other job: written price before any work starts, a written guarantee on completion, and a 365-Day Done Right Promise. If a covered Gelco repair fails inside the guarantee period, we come back and fix it at no charge. No callbacks, no re-quoting. We also stock Gelco-compatible parts locally so we’re not waiting on a distributor when your fireplace is down. And unlike some outfits, we’ll tell you plainly if your Gelco liner has years of safe life left and all you need is a sweep. Say the price first. Explain the work. Put the promise in writing.
Styles & brands we work with
Common Gelco Chimney Cleaning Problems We Fix in Austin
- Corroded Universal Chimney Top mounting brackets. Austin’s humidity is rough on galvanized steel. We regularly see Gelco Universal Chimney Top brackets showing galvanic corrosion where dissimilar metals meet, especially on homes within a few miles of Lady Bird Lake or along the creeks. The corrosion weakens the bracket, the cap shifts, and water gets in. We replace the failed hardware with corrosion-resistant fasteners and re-seat the cap so it actually protects the flue.
- Cracked or spalled firebrick in Insul-Flue refractory panels. Gelco Insul-Flue panels hold up well under normal use, but Austin’s pattern of sudden cold snaps after long warm stretches causes thermal shock. We’ve seen panels crack after a homeowner fires up the fireplace on the first genuinely cold night in December. The crack starts small, then widens as creosote expands behind it. We inspect every Insul-Flue liner we clean for hairline fractures and tell you whether it’s cosmetic or needs attention.
- Hardened creosote in rigid stainless liners. Austin homeowners burn a lot of cedar and mesquite. Both species burn hot but incompletely when the wood isn’t fully seasoned, and that produces a dense, glazed creosote that bakes onto the liner walls. Because so many Austin fireplaces sit dormant from April through October, that creosote has months to harden. A standard brush won’t touch it. We use mechanical removal methods designed for stainless liners, then camera-inspect the results so you can see the liner actually came clean.
- Loose or missing Gelco cap fasteners after hailstorms. Austin gets real hail, and central Texas storms bring wind gusts that test every fastener on your chimney. Gelco caps are well-made, but the fasteners are the weak point. We’ve responded to dozens of calls after spring and fall storms where the cap was still there but two of four fasteners were gone. Left unrepaired, the wind works the cap loose over weeks until it either falls or shifts enough to let rain in.
- Draft problems caused by partial blockages in Gelco liners. A narrowed draft is usually not a liner defect. It’s creosote, nesting material, or a shifted cap sitting too low over the flue opening. We diagnose the actual cause before recommending any repair, because the fix for a blocked cap is thirty minutes of labor, not a new liner. That’s the kind of honesty Austin homeowners tell us they’ve had trouble finding.
Gelco Parts & Our Repair-vs-Replace Approach
We prefer OEM Gelco replacement parts for critical flue and cap components because the fit and material compatibility matter. A Universal Chimney Top built to Gelco’s spec bolts to the existing base the way it was designed to, and an Insul-Flue replacement panel matches the thermal expansion characteristics of the original. For non-structural repairs, we sometimes use high-quality aftermarket brackets, stainless screws, and high-temperature sealants when those parts meet or exceed Gelco’s durability. The decision is never random. It’s based on whether the part is load-bearing, exposed to direct heat, or purely ancillary.
Our repair-or-replace threshold is simple. If the existing Gelco liner or cap is structurally sound and can be restored to safe operation, we repair it and tell you exactly what we did and why it’ll hold. If the corrosion has eaten through the metal or the refractory panels are compromised beyond a single-panel replacement, we recommend full replacement with a matching or superior liner system. We show you the camera footage either way. You decide with evidence, not a sales pitch. If you’re unsure whether your Gelco component needs repair or replacement, call (254) 274-4486 and we’ll give you a straight answer based on an inspection, not a guess.
Our Gelco Service Process – Step by Step
- 1
Inspection and diagnosis. We start every Gelco job with a visual inspection and, when needed, a Level 2 camera scan of the liner interior. This shows us creosote thickness, panel condition, cap fastener status, and any signs of moisture penetration around the crown.
- 2
Written quote before any work. After the inspection, we hand you a written price. It covers exactly what needs to happen. If the job turns out to be a simple sweep, that’s the number on the invoice. If we find damage, we show you the footage and quote the repair separately, with no pressure to proceed the same day.
- 3
Creosote removal and liner cleaning. For Gelco Insul-Flue and rigid stainless systems, we use brushes sized to the liner’s diameter and mechanical removal tools for hardened glaze. We protect the refractory panels during the sweep, because aggressive wire brushing on Insul-Flue can score the surface and shorten panel life.
- 4
Repair or replacement as agreed. Cap replacements, bracket repairs, panel swaps, or top-plate installation happen only after you’ve approved the written quote. We use Gelco OEM parts for structural components and torque fasteners to spec.
- 5
Post-repair testing and camera verification. After the work, we run a draft test and camera the liner again. You see the result. Then we hand you the written guarantee that covers the repair under our 365-Day Done Right Promise.
See the difference
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After
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After
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AfterGelco Products We Service & Install in Austin
Our crews work on the full Gelco residential lineup in Austin homes, including Gelco Insul-Flue refractory liner systems, Gelco Universal Chimney Tops, Gelco Stainless Steel Rigid Liners, and Georgetown Gelco service. We carry common replacement brackets, cap fasteners, top plates, and high-temperature sealants on our trucks for same-visit repairs, and we can source OEM Gelco liners and caps quickly from our local supply partners when a full replacement is called for. If you own a Gelco product that isn’t listed here, call (254) 274-4486 and ask. Chances are we’ve worked on it.
We Also Service These Brands
Gelco is one of several chimney-trade brands we repair and install. We also work regularly with DuraFlex liner systems and HeatShield flue repair products across Gelco service in Round Rock. If your chimney is a mix of manufacturers or you’re not sure what’s in there, that’s not a problem. We’ll identify it during the inspection and service it accordingly.
FAQs – Gelco Chimney Cleaning Service in Austin
It’s usually galvanic corrosion, not a manufacturing defect. When the steel bracket touches a dissimilar metal in the presence of Austin’s humidity, the weaker metal sacrifices itself. Homes near the lake and creeks see it accelerate. We replace the corroded brackets with corrosion-resistant hardware and re-seat the cap so it drains properly. If the cap itself is rusting through, we’ll show you the damage on camera before recommending replacement.
Yes. The key is using the right brush stiffness and mechanical removal tool pressure for the liner’s condition. Aggressive wire brushing on Insul-Flue can score the refractory surface, so we assess the panel condition before sweeping and adjust our method accordingly. We’ve cleaned hundreds of Gelco Insul-Flue liners in Austin without panel damage, and we camera-verify every liner when we’re done.
In our experience, it’s rarely the liner itself. Draft problems in Gelco rigid stainless systems in Austin typically come from hardened creosote narrowing the flue passage, a shifted cap sitting too low over the opening, or negative air pressure inside the house from modern HVAC and exhaust systems. We diagnose the cause before recommending a fix, and often the solution is a thorough sweep and a cap adjustment, not a liner replacement.
You can, and we’ll do it if another brand is the better fit for your chimney’s dimensions and exposure. But we usually recommend staying with a Gelco cap when the existing base and mounting system are intact, because the OEM fit means fewer leak points. If we’re replacing a failed Gelco cap, we’ll quote the Gelco replacement and explain any acceptable alternatives before you decide.
Minor surface cracking in firebrick is common and often cosmetic, especially in Austin where sudden cold snaps cause thermal shock. But if cracks are wide, bricks are spalling, or you can see gaps behind the panels, that’s structural and needs attention. We’ll show you the camera footage and tell you honestly whether it’s “keep an eye on it” or “fix it now.”
Most Gelco chimney cleanings in Austin run between $189 and $289, depending on liner type, creosote condition, and whether the cap needs reseating. If we find damage during the inspection, we quote the repair separately with a written price before any work starts. Call (254) 274-4486 for an exact quote. Estimates are free.
Book Your Gelco Service in Austin, TX
If your Gelco chimney needs a sweep, a camera inspection, or a repair quote, call (254) 274-4486. We answer the phone with a live person, 24/7. You’ll get a written price before any work begins and a written guarantee when it’s done.
Written by Nathan Corliss, Owner at Ashby Chimney Austin, serving Austin since 2002.