A Flint company - serving Alpharetta, GA

Gelco Chimney Cleaning Service Nationwide

Gas fireplace serviceGas fireplace service
Sweep & inspectionSweep & inspection
Caps & crownsCaps & crowns
Flue reliningFlue relining
Masonry repairMasonry repair
Every visit starts with

Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed

Worth knowing

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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Why Alpharetta Homeowners Choose Gelco Chimney Cleaning

Flint Chimney Co Alpharetta provides independent Gelco repair in Alpharetta, including chimney cleaning, inspection, and full repair service throughout the area. We work on Gelco flex liners, damper clamps, and gas log sets every week, and we stock the Gelco-specific gaskets, clamps, and liner adapters most generalist sweeps don’t carry. As an independent Gelco service provider, we are not affiliated with or authorized by Gelco, but our technicians know these products from daily field use, not a spec sheet. Call (762) 600-1468 for a written quote before any work begins.

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What makes our Gelco service in Cumming and Alpharetta different is simple: we see the same failure modes over and over, so we know what to look for before we even get on the roof. Gelco flex liners kink at the first offset above the firebox. Gelco oval liners collapse when the masonry throat is undersized. Gelco damper clamps corrode and stop holding the damper open. These are not rare occurrences here, they’re the reason Alpharetta homeowners call us. And when we find a problem, you get a written price, a camera photo of the issue, and a repair that’s guaranteed in writing for a full year.

Hank Delano, owner of Flint Chimney Co Alpharetta, grew up in Los Angeles and learned chimney work at Los Angeles Trade-Technical College before spending more than two decades in the field. He and his crew have served Alpharetta for years, running cleanings and inspections on everything from new builds near Avalon to older homes with clay-tile flues that haven’t seen a brush in a decade. Hank’s approach is the same on every job: he tells you what he found, what it means, and what it costs to fix. Nothing added.

Why Trust Flint Chimney Co Alpharetta for Your Gelco Chimney Cleaning?

Gelco products show up in thousands of Alpharetta chimneys, and our crews service them daily. That repetition matters. A tech who sees one Gelco liner a month is guessing. A tech who pulls three a week knows by feel when a seam is about to separate or when a liner is too far gone to save. That’s the difference between a $200 cleaning and a $2,000 liner replacement you didn’t actually need, or worse, a liner that fails two months after someone told you it was fine.

We use genuine Gelco replacement parts whenever they’re available. The flex liner lock-together design is the specific reason, because generic aftermarket tubes don’t mate reliably with Gelco’s coupling system. A liner that leaks at the joint defeats the entire purpose of having a liner. When we install a Gelco part, we install the real thing, and we put that in writing on your invoice so you can verify it yourself. If a repair fails within one full year, we return at no charge under our 365-Day Done Right Promise. That’s the Garrison Standard, and it applies to every Gelco job we do in Alpharetta.

Every technician who arrives at your door is background-checked and uniformed. You’ll know exactly who’s walking in. And when you call, a live person answers, 24 hours a day, seven days a week. No voicemail trees, no callback forms, no waiting until Monday.

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Styles & brands we work with

Sweep & inspection
Sweep & inspection
Caps & crowns
Caps & crowns
Flue relining
Flue relining
Masonry repair
Masonry repair
Gas fireplace service
Gas fireplace service

Common Gelco Chimney Cleaning Problems We Fix in Alpharetta

  • Gelco 4-inch round flex liner kinking at the first offset above the firebox. This is the issue we see most in two-story Alpharetta homes with long vertical runs. The offset is where the liner changes direction, and if the original install left the liner even slightly short or misaligned, heat stress and creosote weight cause a kink right at that bend. A kinked liner restricts draft and traps creosote above the restriction. We remove the creosote buildup, assess the kink, and replace the liner section when the kink has compromised the liner wall.
  • Gelco 5.5-inch oval flex liner collapsing under side pressure. When a masonry throat is even slightly undersized, the oval liner takes side pressure it wasn’t designed to handle. Over years of heating and cooling cycles, the liner walls bow inward, narrowing the flue passage. We see this regularly in Alpharetta homes with original terra cotta flues that were relined with oval Gelco liners. The fix is a correct-size liner or a properly measured oval replacement.
  • Gelco gas log sets accumulating soot on ceramic burner ports. A yellow, sooty flame on a Gelco gas log set is not normal. It almost always means the air shutter is adjusted wrong or the ports are clogged with dust and spider webs. Soot on the ceramic ports reduces heat output and can produce carbon monoxide. We clean the burner ports, adjust the air shutter, and verify the flame pattern before we leave.
  • Gelco damper clamps corroding and failing to hold the damper open. Damper clamps on wood-burning fireplaces are exposed to heat, moisture, and creosote acids. Over time, the clamp corrodes and loses its grip, which lets the damper drift closed. A closed damper sends smoke and carbon monoxide into the house. We replace corroded Gelco damper clamps with new ones and verify the damper stays open before we finish.
  • Gelco flex liner spiral seam separation. This is the failure that gets missed on routine cleanings because it hides behind creosote. The spiral seam on a Gelco flex liner can open along a section of the liner, especially in Alpharetta’s humid conditions where the liner surface stays damp longer. A separated seam lets flue gases leak into the chimney cavity. We find it with camera inspection and document it with photos in your Level 2 report. If the liner is more than 15 years old and shows seam separation, we recommend full replacement rather than a patch that will fail at the next cleaning.

Gelco Parts & Our Repair-vs-Replace Approach

We stock Gelco gaskets, clamps, liner adapters, and top plates locally so most repairs in Alpharetta don’t wait on a parts order. When a Gelco flex liner needs replacement, the lock-together coupling design is the reason we use genuine Gelco liner sections, because aftermarket tubes don’t seat correctly and leak at the joints. For damper clamps and top plates, we spec the part to the job. If a quality aftermarket clamp matches the original spec, we’ll say so and give you a written price either way.

The repair-versus-replace decision comes down to evidence, not opinion. We run a camera down the liner and look at the actual condition of the steel. If a Gelco liner is over 15 years old and shows seam separation, perforation, or wall thinning, we recommend full replacement. A patch on an old liner is money spent twice. If the liner is sound and the issue is creosote or a failed clamp, we say that plainly and charge you for the cleaning and the clamp, not a liner you don’t need. Tell me what’s in the flue, and we’ll tell you what it takes to fix it. Call (762) 600-1468 for an exact quote, estimates are free.

Our Gelco Service Process – Step by Step

  1. 1
    Diagnosis. We start with a visual inspection of the firebox, damper, and accessible liner sections. For Gelco liners, we’re looking specifically for kinks at offsets, seam separation, and corrosion at the couplings. We run a camera through the full liner length and log every finding.
  2. 2
    Written price. Before any tool comes off the truck, you get a written price for the work we recommend. That price includes parts, labor, and disposal. The number you approve is the number on the invoice.
  3. 3
    Repair or install. We use genuine Gelco replacement parts when available. Liner sections are cut to the measured length, couplings are seated and locked, and top plates are sealed with high-temperature silicone. For gas log sets, we clean burner ports and adjust the air shutter to the manufacturer’s spec.
  4. 4
    Test. We run the camera again after the repair, document the finished condition with photos, and test the draft on wood-burning systems or the flame pattern on gas sets. You see the before and after photos.
  5. 5
    Warranty. Every Gelco repair carries a written one-year guarantee under our 365-Day Done Right Promise. If a covered repair fails within that year, we return at no charge. No argument, no second invoice.
Before & after

See the difference

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Gelco Products We Service & Install in Alpharetta

Our crews handle Gelco in Lawrenceville and Alpharetta, servicing the 4-inch round flex liner system, the 5.5-inch oval flex liner, masonry fireplace damper clamps, and gas fireplace log sets. We stock replacement gaskets, damper clamps, liner adapters, and top plates locally for fast turnaround on most Alpharetta jobs. If your Gelco component is older, discontinued, or damaged beyond repair, we’ll tell you what your options are and write the recommendation down so you can make the call with solid information, not a sales pitch.

We Also Service These Brands

Flint Chimney Co Alpharetta isn’t tied to a single manufacturer. We work daily with DuraFlex and HeatShield systems alongside Gelco, and we stock professional-grade materials from Olympia Chimney, Famco, and Copperfield as well. The brand matters less than the installation quality and the condition of the liner, so our recommendation is always based on what’s in your flue, not what’s in our truck.

FAQs – Gelco Chimney Cleaning Service in Alpharetta

Is Flint Chimney Co Alpharetta authorized by Gelco?

No. We are an independent Gelco service provider, not a factory-authorized dealer or installer. That independence means our recommendations are not tied to any manufacturer’s sales targets. We recommend what the camera shows and what the liner condition supports, nothing more. Call (762) 600-1468 for a written quote, estimates are free.

Do you use genuine Gelco or OEM parts?

We use genuine Gelco replacement parts whenever available. The flex liner lock-together coupling design is the specific reason, because generic aftermarket tubes do not seat reliably at Gelco couplings and can leak at the joints. For non-critical components like damper clamps, we may use a quality aftermarket part that matches the original spec, and we’ll tell you exactly what’s going in and why.

Why does my Gelco flex liner keep kinking at the first offset above the fireplace?

That kink almost always traces back to the original installation. If the liner was cut slightly short or seated at the wrong angle at the offset, years of heating and cooling cycles plus creosote weight create a kink at that exact bend. A kinked liner restricts draft and traps creosote above the restriction, which is why the problem gets worse over time. The fix is removing the creosote, assessing the liner wall, and replacing the damaged section. Call (762) 600-1468 and we’ll run a camera down your liner to see exactly what’s happening.

Can you clean a Gelco oval liner with standard round brushes?

No, and you shouldn’t. A standard round brush will not conform to the oval profile, which means you leave creosote along the long walls of the liner and you risk scoring the liner surface. We use oval-specific brushes sized to the liner’s exact dimensions. This matters more in Alpharetta because our humid conditions accelerate creosote accumulation, so anything left behind becomes a bigger problem faster.

My Gelco gas log set has a yellow sooty flame. Is that normal?

No. A properly adjusted Gelco gas log set should burn with a mostly blue flame at the base and yellow tips on the logs. If you’re seeing heavy yellow, soot on the ceramic burner ports, or soot on the logs themselves, the air shutter is adjusted wrong or the ports are clogged. We clean the ports and adjust the shutter to spec, then verify the flame pattern. A sooty flame is also a carbon monoxide concern, so don’t let it ride through heating season.

How often should a Gelco flex liner in an Alpharetta wood-burning fireplace be cleaned?

Annually, at minimum, through our Chimney Sweep services. Alpharetta’s humidity accelerates creosote accumulation compared to drier parts of Georgia, and a kinked or partially obstructed Gelco liner traps creosote even faster. If you burn more than two cords a season or burn unseasoned wood, we recommend a mid-season inspection. The written price covers the sweep, the inspection, and the camera documentation. Call (762) 600-1468 for an exact quote.

Book Your Gelco Service in Alpharetta, GA

If you have a Gelco liner, damper clamp, or gas log set in Alpharetta that needs service, call (762) 600-1468. Hank Delano and the Flint Chimney Co Alpharetta crew will give you a written price before any work starts, and every repair carries a written one-year guarantee. A live person answers the phone, 24/7.

Written by Hank Delano, Owner at Flint Chimney Co Alpharetta, serving Alpharetta since 2002.

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