Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
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.
Gelco Chimney Cleaning in North Atlanta, GA | Ashby Chimney Atlanta
We provide independent Gelco chimney cleaning and repair across North Atlanta, and the one thing that sets our work apart here is simple: we know exactly what this humid climate does to a Gelco liner. Most Gelco systems we service in North Atlanta develop a glassy, hard creosote glaze that a standard brush-and-vac sweep won’t remove. That’s why every Gelco job here starts with a visual check of the liner condition before we quote anything. Call (678) 263-7908 and you’ll talk to a live person who can schedule your North Atlanta Chimney Sweep.
We carry genuine Gelco components and UL-listed aftermarket stainless parts matched to your liner diameter. North Atlanta’s 1980s and 1990s chimneys are hitting the age where original Gelco liners are failing at seams and top plates. We’re the crew that shows up, shows you the camera footage, and gives you a written price before any work begins. Gelco sales & service is what we do every day, and we’ve been doing it across the Atlanta metro since 2002.
Why North Atlanta Residents Choose Us for Gelco Service
Nathan Corliss learned the chimney trade at Los Angeles Trade-Technical College, but the flues that taught him the most are the ones he works on now: North Atlanta’s masonry fireplaces, most built during the 1980s through 2000s suburban boom, with clay tile liners that have since been retrofitted with Gelco stainless systems. Nathan’s approach hasn’t changed since he started: write the price down before touching a brush, do the inspection first, and leave the job cleaner than he found it.
We’re an independent service provider, not a Gelco factory arm. That matters because we recommend what the chimney actually needs. If your Gelco liner has one rusty seam, we’ll tell you whether a patch will hold or whether North Atlanta’s moisture means you need a full liner run replacement. We don’t sell replacement parts because a quota says so. We show you the video, explain what we found in plain English, and let you decide with the facts in front of you.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in North Atlanta
- Third-degree glazed creosote inside Gelco liners. North Atlanta’s mild winters encourage low-temperature, smoldering fires. Those fires produce wet creosote that bakes into a hard, glassy glaze on the interior of a Gelco flexible or rigid liner. A standard sweep won’t touch it. We use rotary cleaning heads with carbide chains to break the glaze without scoring the stainless.
- Corrosion at Gelco liner seams from high humidity. Acidic creosote plus persistent summer moisture in North Atlanta creates the exact conditions for seam corrosion on single-ply Gelco flex liners. We see it most in exterior-adjacent chimneys where the liner never fully dries between burns.
- Distorted or partially collapsed Gelco liner sections. Thermal cycling is brutal on liners in North Atlanta’s uninsulated, exterior-adjacent chimneys. The liner heats, cools, condenses, and expands. Over a decade or two, sections can warp or telescope. We flag this during every Level 2 inspection.
- Top plate and rain cap leaks from freeze-thaw damage. North Atlanta gets more freeze-thaw cycles than people realize. Moisture soaks into the mortar around the Gelco top plate, freezes, expands, and cracks. The plate itself may be fine; the seal around it is not. We reseal and waterproof that area regularly.
- Persistent smoky smell after a standard sweep. In Dunwoody and Sandy Springs, we’re often the second company called. The first sweep removed the loose creosote but left the glaze. The smoky smell returns because the liner interior is still coated with the stuff that burns. We go deeper and show you the before-and-after video.
Gelco Service in North Atlanta: What Local Conditions Mean for Your Equipment
Here’s the thing about North Atlanta that most chimney companies never mention: our combination of mild, humid winters and frequent freeze-thaw cycles creates a specific failure pattern on Gelco liners that you won’t see in colder, drier climates. The interior of the liner develops a wet-glaze creosote that clings to the stainless in a thick, tar-like layer, while the exterior masonry around the top plate spalls at a rate noticeably faster than in nearby higher-elevation towns like Alpharetta. Why? Because our air holds more moisture, our winters hover right around the freeze line, and every cycle of wet, freeze, wet, freeze works the mortar loose around the Gelco cap assembly.
What this means for Gelco owners in North Atlanta is that a basic sweep often misses the real problem. The glaze inside and the deteriorating seal outside both need attention, and they need it from someone who knows to look for both on the same visit. That’s the difference between a sweep that lasts a season and one that keeps the system safe for years. We don’t do half the job because we know what the other half looks like around here.
Gelco Models & Products We Service in North Atlanta
Our crews work on the full Gelco line we encounter in North Atlanta homes: the standard single-ply flexible stainless liner, the rigid stainless sections used in straighter flues, the premium insulation wrap kit, and the standard round top plate and rain cap assembly. We stock genuine Gelco top plates, caps, and common connector sizes locally so we’re not waiting on a shipment to finish a North Atlanta repair.
For liner replacements, we use either genuine Gelco components or top-quality UL-listed aftermarket stainless matched to your existing diameter and fuel type. If a Gelco liner shows significant seam corrosion or distortion, we usually recommend replacing the entire run rather than patching. Partial repairs on a humid North Atlanta chimney rarely hold, and we’d rather tell you that before you spend money than after.
See the difference
Before
After
Before
After
Before
AfterGelco Service Pricing in North Atlanta
Most Gelco chimney cleanings in North Atlanta run between $189 and $289, depending on the liner condition, accessibility, and whether we’re dealing with standard powdery creosote or the glazed buildup that requires rotary cleaning. A Level 2 camera inspection typically adds $150 to $225 when bundled with a sweep. Waterproofing and top plate resealing runs $300 to $500 depending on the extent of masonry work needed. Full Gelco liner replacement varies widely by flue height and access, so we won’t quote that blind.
Every estimate is free and written down before we start. You’ll see the price, know what it includes, and get the same number on the invoice. Call (678) 263-7908 and we’ll walk you through what your chimney likely needs based on what we see in your neighborhood.
Serving North Atlanta, GA - Our Local Coverage Area
We’re based in the North Atlanta 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 – Gelco Chimney Cleaning in North Atlanta
Yes. Glazed creosote is a hard, glassy layer that standard wire brushes skip over. We use rotary cleaning heads with carbide teeth to break the glaze without damaging the stainless liner. This is the standard approach for North Atlanta Gelco systems because our humid, mild winters produce this type of buildup more than any other we see. If you’ve had a sweep recently and still smell smoke, this is usually why. Call (678) 263-7908 and have us take a look.
Humidity keeps the liner damp for weeks after each fire, and when creosote sits wet against stainless, it becomes acidic. That acid attacks the liner at the seams first. We see accelerated seam corrosion on Gelco single-ply liners in North Atlanta far more often than in drier parts of Georgia. The fix is usually a full liner replacement if corrosion has set in. We’ll show you the video proof before recommending anything.
In most North Atlanta homes, one rusty seam means the liner has been corroding from the inside for a while, and what you see is just the first spot to break through. We can sometimes patch a small area with a stainless repair band, but for single-ply Gelco flex liners, that patch rarely holds more than a season or two in this humidity. We’ll give you both options and the honest truth about which one we’d choose for our own chimney.
Our Chimney Inspection in North Atlanta on a Gelco system includes a video scan of the entire liner interior, the top plate and cap assembly, the damper area, and the accessible masonry around the flue. We’re looking for glazed creosote, seam corrosion, liner distortion, and freeze-thaw damage at the top plate seal. In North Atlanta, we also check for moisture intrusion from the outside because our climate works the masonry hard. You get the video footage and a written report with photos.
The leak is usually not in the metal; it’s in the seal between the Gelco top plate and the masonry crown. North Atlanta’s freeze-thaw cycles crack that mortar seal, and water sneaks under the plate. The plate looks fine, but the water finds its way in. We reseal the plate with high-temperature silicone and waterproof the surrounding masonry. This is one of the most common repairs we make on Gelco systems in Sandy Springs, Dunwoody, and Roswell. Call (678) 263-7908 and we’ll get it sealed before the next rain.
Service Areas Near North Atlanta
We work throughout North Atlanta and the surrounding communities, including Atlanta, Dunwoody, East Point, Union City, and Fairburn. If you’re in one of those areas with a Gelco chimney that needs attention, we’ll get to you quickly. We know the housing stock and the chimneys in each of these places because we’re out there every week. North Atlanta service area covers all of it. For a wider map, see our Gelco service in Atlanta page, or if you’re closer to the Perimeter, Gelco service in Dunwoody has the details.
Book Your Gelco Service in North Atlanta Today
Your Gelco chimney needs attention before the next burn season, and North Atlanta’s humidity isn’t waiting. Call (678) 263-7908 and talk to a live person right now. We’ll get you scheduled, show up with a written price, and leave your chimney cleaner and safer than we found it. The phone is answered 24/7.
Written by Nathan Corliss, Owner at Ashby Chimney Atlanta, serving North Atlanta since 2002.