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.
Why Marietta Homeowners Choose Gelco Chimney Cleaning
We provide independent Marietta Gelco service - chimney cleaning, repair, and liner work throughout Cobb County. Our technicians clean Gelco stainless and black-steel flexible liners, factory-built fireplace systems, and venting components using NFPA 211 Level 2 camera inspection as the starting point on every call. We’re not affiliated with or authorized by Gelco - we diagnose the full venting system, from liner seams to appliance connections, rather than defaulting to brand replacement. Call (470) 288-2763 for a written estimate before any work begins.
Marietta’s housing stock creates specific demands on Gelco systems. The 1970s through 1990s subdivision boom across East Cobb and West Cobb filled thousands of homes with factory-built zero-clearance fireplaces now at or beyond their 30- to 50-year rated service life. Because Marietta’s mild winters - January lows around 34°F - make these fireplaces recreational rather than essential, homeowners routinely skip cleanings for years. A single inspection often uncovers cracked refractory panels, failed gaskets, and hidden creosote buildup simultaneously. That makes our Chimney Sweep services here as much a safety audit as a sweep.
We see this pattern constantly in the older East Cobb luxury builds from the 1980s and early 2000s, where oversized wood-burning systems have burned sporadically for decades without professional service. The metro Atlanta area’s roughly 50 inches of annual rainfall, combined with Marietta’s clay-heavy soil that shifts through wet-dry cycles, stresses chimney foundations and accelerates mortar joint deterioration. Gelco liners in these conditions face moisture intrusion, corrosion, and creosote accumulation that a flashlight inspection simply won’t catch.
Why Trust Emberly Chimney Cleaners Marietta for Your Gelco Chimney Cleaning?
Corrine Halstead, our owner, grew up in Queens and trained through Apex Technical School in Manhattan before spending the better part of two decades cleaning and inspecting chimneys across Marietta. She’s worked plenty of afternoons on older homes along Whitlock Avenue where the masonry tells its own story. That background means our technicians understand how Gelco liners behave in real Marietta conditions - not just in a catalog.
We run a camera before quoting a price and write down every finding in plain language before asking a homeowner to sign anything. Camera first, quote second, work third - in that order, every time. This practice became Clause 4 of the Haven Standard in 2009, and we’ve applied it to every one of the 38,000-plus chimneys we’ve inspected and cleaned since then.
Our Gelco work draws on materials sourced through Haven’s buying network - Gelco-compatible stainless liner components, top plates, cap hardware, and OEM Gelco parts when the existing liner series is still supported. We don’t upsell full systems when a re-clamp and cap reseal will solve the problem. Every job carries a written price, written scope, and written warranty delivered before anyone starts work (Haven Standard Clause 1), plus the 365-Day Done Right Promise stamped on every invoice.
Our technicians are background-checked and uniformed, with license information displayed on every page. You’ll get a named tech assigned and a text when they’re on the way. Calls are answered by a live person, 24 hours a day, 7 days a week - not a voicemail, not a web form.
Common Gelco Chimney Cleaning Problems We Fix in Marietta

- Creosote accumulation at Gelco liner corrugation valleys and top termination. Marietta’s mild winters produce incomplete low-temperature burns that deposit sticky second-stage creosote in the valleys of Gelco stainless flexible liners. This restricts draft and can cause puff-back into the room on cold starts. We remove glazed creosote with rotary sweeps using plastic bristles - stiff enough to clean, soft enough to protect the corrugations - then verify clearance with a camera scan.
- Liner seam separation or horizontal offset compression from improper install. Gelco stainless liners making tight turns through dampers in older masonry chimneys around Marietta Square can compress horizontally or be installed with seams facing the wrong direction. We check seam orientation and offset with a down-flue camera before quoting any repair. A seam installed upside down traps moisture and creosote; a compressed offset at the damper blocks draft and strains the liner wall.
- Corrosion and pitting at Gelco black-steel liner sections. Black-steel liners cost less upfront but corrode faster in masonry chimneys that see moisture and long idle periods - exactly the conditions in Marietta’s humid climate with 50 inches of annual rainfall. We inspect black-steel walls with a camera for pitting depth; shallow surface rust gets cleaned and monitored, but through-pitting means replacement with stainless.
- Loose or separated Gelco rain cap and top plate clamp assemblies. The clamp that secures a Gelco liner to its top plate can loosen from thermal cycling and wind exposure, letting the liner slip down an inch or more. Water enters through the gap, producing rust streaks on the crown and staining the masonry below. We reset and re-clamp the liner, then reseal the cap assembly - often a same-visit fix if the liner itself is sound.
- Failed refractory panels and gaskets in Gelco factory-built fireplace systems. The 1985-1998 prefab fireboxes in East Cobb tract builds - often paired with Gelco venting components - have original refractory panels cracked straight through from decades of thermal cycling. This is a code-level hazard that only surfaces because the homeowner finally called for a cleaning they’d put off for five-plus years. We document panel condition with photos and provide a written replacement scope before any work starts.
Before
AfterGelco Parts & Our Repair-vs-Replace Approach
We stock Gelco-compatible stainless liner components, top plates, and cap hardware at our Marietta facility for fast turnaround. When the existing Gelco liner series is still supported by the manufacturer, we use OEM Gelco parts. For discontinued series, we source compatible components through Haven’s buying network specifically to keep customer prices honest.
Our repair-vs-replace decision is straightforward. A Gelco liner that is pitted, seam-split, or undersized for the connected appliance gets a written replacement recommendation with photo evidence. A sound liner with a loose clamp, degraded cap seal, or surface creosote gets cleaned, re-clamped, and repaired. We never recommend replacement without camera documentation you can see for yourself. If a competitor has already quoted replacement, bring us their written estimate - we offer a Free Second Opinion on any written estimate.
Call (470) 288-2763 to schedule a camera inspection and get a written price before any work begins.
Our Gelco Service Process - Step by Step

- 1
Diagnosis with NFPA 211 Level 2 camera inspection. We run a camera down the full length of your Gelco liner, documenting corrugation condition, seam orientation, offset compression, and creosote class. For factory-built systems, we inspect the firebox, smoke chamber, and venting connection. You receive a photo record of every finding (Haven Standard Clause 4).
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Written price and scope before work starts. We deliver a written price, written scope of work, and written warranty - always, on every job, no exceptions (Haven Standard Clause 1). No work begins until you have all three in hand.
- 3
Repair or installation with Gelco-compatible or OEM parts. Our technicians perform the agreed scope using parts sourced through Haven’s buying network. For liner work, we verify proper seam orientation and secure clamp torque. For cap replacement, we match the Gelco top plate specification.
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Post-work testing and documentation. We run a final camera pass to verify liner position, cap seal integrity, and draft performance. You receive a completed photo record and written warranty documentation for your files.
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365-Day Done Right Promise. If anything in our scope isn’t done right, we make it right - stamped on every job under the Haven Standard.
Gelco Products We Service & Install in Marietta
We work on Gelco Stainless Steel Flexible Chimney Liner Kits, Gelco Black Steel Flexible Chimney Liner Kits, Gelco Insulated Flexible Liner Systems, and Gelco Factory-Built Fireplace / Zero-Clearance Venting Components. Our Marietta facility stocks compatible liner sections, top plates, cap assemblies, and clamp hardware for common Gelco configurations. For less common factory-built components, we source through Haven’s supplier network with lead times typically under one week.
We also install new Gelco liner systems where replacement is warranted, properly sized to the appliance BTU rating and venting height for your Marietta home’s specific configuration.
We Also Service These Brands

Our technicians are multi-brand specialists, not single-brand dependent. We regularly service and install DuraFlex liner systems, apply HeatShield cerfractory resurfacing products, and work with Olympia Chimney, Famco, and Copperfield components. This breadth means we recommend the right solution for your venting system rather than pushing a single product line.
FAQs - Gelco Chimney Cleaning Service in Marietta
No. We are an independent Gelco service provider with no manufacturer affiliation or authorization. We diagnose the complete venting system - from Gelco liner seams to appliance connections - rather than defaulting to brand replacement. Our independence means we recommend what your chimney actually needs based on camera evidence, not a parts catalog.
We use OEM Gelco parts when the existing liner series is still supported by the manufacturer. For discontinued series or when compatible alternatives meet the same specifications at better value, we source through Haven’s buying network. We specify which parts are OEM and which are compatible in your written scope before work begins.
A standard Gelco liner cleaning and inspection takes 60 to 90 minutes, including the NFPA 211 Level 2 camera scan and photo documentation. Cap replacement or liner re-clamping adds 30 to 45 minutes. Full liner replacement typically requires a half-day appointment. We provide a time estimate in your written scope before booking.
We service Gelco Stainless Steel Flexible Chimney Liner Kits, Gelco Black Steel Flexible Chimney Liner Kits, Gelco Insulated Flexible Liner Systems, and Gelco Factory-Built Fireplace / Zero-Clearance Venting Components. If you’re unsure which series is in your chimney, we identify it during the camera inspection and note it in your written report.
Manufacturer warranties on Gelco products typically require professional installation and maintenance but do not mandate service by authorized dealers. Our work is performed to NFPA 211 standards with documented photo records, which satisfies standard warranty maintenance requirements. We note any warranty considerations in your written scope if they apply to your specific installation.
Gelco chimney cleaning in Marietta typically runs $199 to $289 for a standard sweep with NFPA 211 Level 2 camera inspection and photo documentation included. Cap replacement or re-clamping adds $85 to $150. Full liner replacement ranges from $1,800 to $3,400 depending on length, diameter, and access. We deliver a written flat price before any work starts - call (470) 288-2763 for an exact quote; estimates are free.
Book Your Gelco Service in Marietta, GA

Call (470) 288-2763 to schedule your Gelco chimney cleaning or repair. A live person answers 24 hours a day, 7 days a week. We’ll assign a named technician, send a text when they’re on the way, and deliver a written price, written scope, and written warranty before any work begins. Every visit includes a camera-scan inspection and documented photo record under Haven Standard Clause 4, backed by our 365-Day Done Right Promise.
Written by Corrine Halstead, Owner at Emberly Chimney Cleaners Marietta, serving Marietta since 2009.



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