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 Marietta, GA | Ashby Chimney Marietta
We’re an independent chimney service working on Gelco systems throughout Marietta, and we’re not factory-affiliated, which means our assessments don’t get soft-pedaled. The honest answer: what makes our Gelco work different here is that we know Marietta’s chimneys, not just Gelco’s parts catalog. When a Gelco liner corrodes on a Whitlock Avenue row house, the fix isn’t the same as it is on a standalone East Cobb prefab. That’s the difference. Call (478) 796-8742 for a free estimate.
Why Marietta Residents Choose Us for Gelco Service
Nathan Corliss has been at this for going on twenty-two years, and he’s pulled enough creosote out of Gelco systems to know what holds up and what doesn’t in this climate. Nathan’s crew has covered a wide stretch of metro Atlanta, including plenty of fireplaces near Kennesaw Mountain where older flues demand a steady hand. We know the Gelco sales & service landscape well enough to tell you when a part is worth saving and when it’s done. We write the price before we touch a brush, show you what we found, and put the guarantee in writing. Tell you the price first, show you the work, put it in writing – that’s the whole job. Our techs are background-checked and uniformed, and a live person answers our phones 24/7.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Marietta
- Corrosion pitting on Gelco 301 stainless liners. Marietta’s cold snaps are short but real, and a lot of folks burn low, smoky fires to take the chill off. That acidic creosote eats at 301 stainless faster than people expect. We see pinhole corrosion within ten to fifteen years on liners that should have lasted longer.
- Creosote glaze inside Gelco 316Ti flexible liners. Older brick ranches from the 1950s through the 1970s often have long, damp winters with sporadic fires. That combination bakes creosote into a shiny, hard glaze that resists standard brushes. We remove it with mechanical and chemical methods that don’t damage the liner.
- Water intrusion at the Gelco cap-to-flue joint. Masonry chimneys near Marietta Square take a beating from freeze-thaw cycles. Spring rains push water into gaps where sealant has failed. We find this on the original fireplaces around the Square more than anywhere else in the city.
- Rust and sticking on Gelco top-mounted dampers. East Cobb homes built in the 1980s through the 2000s frequently have prefab metal chimneys. High humidity in the summer, when those fireplaces sit unused, rusts the damper hardware. A stuck damper is a draft problem and a fire-safety problem both.
- Shared-wall flue complications. On Whitlock Avenue and Church Street, many chimneys share a common wall with the neighboring house. A Gelco cap or liner on one side affects the adjacent flue. If we’re scoping one, we scope both before touching anything.
Gelco Service in Marietta: What Local Conditions Mean for Your Equipment
Here’s the thing about Marietta that changes how we work on Gelco systems: in the older neighborhoods near the Square like Whitlock Avenue and Church Street, chimneys often share a common wall with the neighboring house. That row-house style isn’t something you see in Kennesaw or Dallas. It means a Gelco liner on your side of the wall is not a standalone problem. Flue gases build up differently in a shared stack. Moisture gets in through two tops instead of one. And if the neighbor’s flue has a crack, your Gelco liner catches heat and gases from both. So shared-wall inspection is standard practice for us, not an upsell. We scope both flues, check the crown on both sides, and if one Gelco cap is rusted at the joint, we check the other before it leaks into the brickwork. That’s why our Chimney Inspection in Marietta covers both sides by default. That’s the kind of local knowledge that doesn’t come from a manufacturer’s spec sheet.
Gelco Models & Products We Service in Marietta
We work on the Gelco 301 stainless steel liner, the 316Ti flexible liner, multi-flue chimney caps, and top-mounted dampers. For a part that’s still within its service life and exact fit matters, we use genuine Gelco components. That’s especially true for multi-flue caps on shared walls, where an off-spec replacement can leave one side unprotected. When a Gelco part is obsolete or corrosion has spread past one component, we talk plainly about whether a quality aftermarket stainless replacement beats another repair. We stock common Gelco-compatible parts locally so Marietta callbacks move fast. Our Marietta service area coverage means we’re nearby when you need us.
See the difference
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AfterGelco Service Pricing in Marietta
Here’s the plain numbers. A standard Marietta Chimney Sweep runs between $180 and $340, depending on the system and how much creosote we’re dealing with. Adding a Level 2 camera inspection typically brings the total to $350 to $600. If you need a Gelco cap replaced, caps run $150 to $450 installed, and a stainless replacement liner starts around $1,200 and goes up from there depending on flue height and access. The written price before we start includes everything; the number we quote is the number on the invoice. Call (478) 796-8742 for an exact quote, estimates are free.
Serving Marietta, GA - Our Local Coverage Area
We’re based in the Marietta 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 Marietta
Yes, in most cases we can replace the liner on your side without opening the shared wall. We scope the adjacent flue first to make sure the shared structure is sound, because a liner replacement on a damaged shared stack won’t last. If the shared wall needs work, we’ll tell you and your neighbor exactly what’s needed and what it costs before anything starts. Call (478) 796-8742 for a free assessment.
Marietta’s humidity is the culprit. When a prefab fireplace sits unused through summer, moisture settles on the cap and damper hardware. Gelco caps are good steel, but no stainless is immune when water pools at the joint and the sealant fails. The fix is usually a replacement cap with a better sealed joint, plus a damper check while we’re up there. Call (478) 796-8742 and we’ll quote it before we start.
Yes. Glaze removal from a 316Ti liner takes chemical treatment first, then mechanical brushing with a tool matched to the liner’s diameter. We don’t use chain flails on flexible liners; that’s how you tear steel. After cleaning we camera the flue to document what’s left. Call (478) 796-8742 to schedule a sweep and inspection.
That depends on the cap’s condition. If the steel is still solid and the rust is only at the sealant joint, we save it; the crown repair can be done without replacing the cap. If the cap’s flanges are corroded through or the mesh is failing, putting it back on a repaired crown just means another leak in two years. We’ll show you the cap close up and let you decide with our honest recommendation. Call (478) 796-8742.
We do, and those are the jobs that take the most care. Pre-1900 homes around the Square often have original brick fireplaces with unlined or partially lined flues. Gelco components installed there, usually a liner retrofit, need inspection for how the old masonry is holding up around the new steel. We treat those as full Level 2 inspections by default. Call (478) 796-8742 and we’ll walk you through what the inspection covers and what it costs.
Service Areas Near Marietta
We serve Marietta and the surrounding communities, including Kennesaw, Dallas, Powder Springs, and Norcross. If you’re just over the line, call and ask; we cover a wide stretch of metro Atlanta. See our Gelco service in Kennesaw and Gelco service in Dallas pages for specific coverage details.
Book Your Gelco Service in Marietta Today
Call (478) 796-8742 for a free estimate on Gelco chimney cleaning in Marietta. We’ll give you a written price before any work starts, show up in the window we promised, and back the work with our 365-Day Done Right Promise. Our crew was back on a job inside a week when a cap seal failed; that’s the guarantee working like it should.
Written by Nathan Corliss, Owner at Ashby Chimney Marietta, serving Marietta since 2002.