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.
DuraFlex Fireplace Services in Marietta: What to Know First
We provide independent DuraFlex fireplace services in Marietta, from gas fireplace tune-ups to wood-burning firebox repairs and insert conversions. Most DuraFlex jobs are quoted same-day after our camera inspection and completed within a week. A written price, written scope, and written warranty land in your hands before any work starts - Clause 1 of the Haven Standard, no exceptions.
This page is for Marietta homeowners who know they’ve got DuraFlex components in their fireplace system and want a technician who can name the part without squinting at the label. If you’re in East Cobb, Kennesaw, or off Whitlock Avenue with a DuraFlex SS liner, DuraFlex Pro, or an insert tied to DuraFlex venting, we built this for you. Call (470) 288-2763 for a free estimate.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex SS (stainless steel liner): wall thinning at the flex points. The accordion corrugations that let this liner snake down a masonry chimney work hard every heating season. In Marietta, where temperature swings from 25°F winter nights to 70°F afternoons stress metal through repeated expansion and contraction, we see wall thinning at the third and fourth corrugation valleys from the top - the section that sits in the hottest, most oxygen-rich part of the flue. Our fix: camera-measure the remaining wall thickness, quote replacement by the foot if it’s below 0.012″, and run a new DuraFlex SS drop with an insulated wrap where the old one cooked.
- DuraFlex Pro: gasket degradation on gas insert connections. The Pro line’s twist-lock collar gaskets are rated for 600°F continuous, but Marietta homeowners who run their gas inserts on “low” for 10-hour stretches build up lower-flame, higher-moisture exhaust that degrades the silicone faster than the spec sheet suggests. We find cracked gaskets at 18-24 months, not the 36 you’d expect. Our fix: replace with OEM DuraFlex Pro gaskets or, when backordered, a cross-referenced high-temp silicone gasket from our Famco supply - documented in your photo record so warranty coverage stays traceable.
- DuraFlex AL (aluminum): acid etching in wood-burning retrofits. Some Marietta homes built in the 1980s got DuraFlex AL as original equipment for oil furnace venting, then got converted to wood-burning fireplaces without swapping the liner. Aluminum can’t handle wood exhaust chemistry; we find pinhole leaks at the horizontal sections above the smoke shelf. Our fix: full replacement with DuraFlex SS or, for straight runs with minimal offsets, an Olympia Chimney stainless equivalent - quoted by the foot, with the old liner pulled and photographed for your insurance file.
- DuraFlex relining: failed top plate seal. The top plate that anchors a DuraFlex liner to the chimney crown takes Marietta’s full weather load - summer UV, winter freeze-thaw, and the occasional ice dam off a poorly flashed cricket. The silicone bead cracks, water runs down between the liner and masonry, and we find spalling brick or a rusted liner top six months later. Our fix: pull the old top plate, re-pour the crown with a drip edge if it’s cracked, and re-bed the plate in high-temp silicone with stainless draw bands - every step photographed, every measurement written down.
- DuraFlex venting on fireplace inserts: offset elbow soot buildup. The 45° and 90° offset elbows that let DuraFlex venting clear fireplace obstructions have a slightly larger radius than some competitor elbows. Good for flow, but the gentler bend lets low-velocity zones form where soot and condensation collect - especially with softwood loads common in Marietta (pine and tulip poplar from local tree services). Our fix: brush and vacuum the offset during every sweep, camera the interior afterward, and if the buildup recurs yearly, quote a straighter vent run or a higher-efficiency insert that burns hotter and cleaner.
Our DuraFlex Fireplace Services Process

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Call and schedule. A live person answers, 24/7. We ask what you’re burning, what you’re seeing, and whether you know the DuraFlex model. We text you a 2-hour arrival window and the name of your technician.
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Camera inspection first. Corrine’s rule: “Camera first, quote second, work third - in that order, every time.” We run a Level 2 inspection per NFPA 211, camera down the flue, photographing every DuraFlex component we can reach. You watch the feed if you want.
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Written price before work. We name the part, the labor, and the warranty in writing. If we need OEM DuraFlex parts, we quote both OEM and our quality aftermarket option from the Haven buying network. You sign before we start.
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The repair. Background-checked, uniformed techs, license number on the work order. We pull old parts, install new, torque to spec, and test-fire. For gas work, we combustion-test and record CO and O2 readings.
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Documentation and cleanup. Photo record of completed work, written warranty, 365-Day Done Right Promise stamped on the invoice. We vacuum the hearth area and text you a link to your digital file. Clause 4 of the Haven Standard: every job documented, every time.
Before
AfterWhat DuraFlex Fireplace Services Costs in Marietta
| Service | Typical Range | What Moves the Price |
|---|---|---|
| DuraFlex gas fireplace tune-up | $189-$275 | Number of burners, condition of igniter, whether the flex vent needs brushing |
| DuraFlex SS liner section replacement (per foot) | $85-$140 | Insulated vs. non-insulated, number of offsets, height of chimney |
| DuraFlex Pro gasket replacement | $145-$220 | Accessibility of collar, OEM vs. aftermarket gasket, whether the vent run needs re-support |
| Firebox repair with DuraFlex venting inspection | $340-$650 | Extent of refractory panel damage, whether the DuraFlex connection is compromised |
| Fireplace conversion (wood to gas insert with DuraFlex venting) | $2,800-$4,500 | Insert model, liner length, gas line run distance, permit requirements |
We don’t charge for the inspection that produces your quote. Bring us a competitor’s written estimate and we’ll give you a free second opinion. Call (470) 288-2763 for your exact number.
Why Marietta Homeowners Call Emberly Chimney Cleaners Marietta for DuraFlex Work

We’ve inspected and cleaned more than 38,000 chimneys since 2009, and a healthy share of those runs involved DuraFlex components in Marietta homes - from the brick ranches off Powers Ferry Road to the newer builds near the Avenue East Cobb. Corrine Halstead grew up in Queens, trained at Apex Technical School in Manhattan, and has spent the better part of two decades on Marietta roofs, including plenty of afternoons working older homes along Whitlock Avenue where the masonry tells its own story. She runs a camera before quoting a price and writes down every finding in plain language before asking anyone to sign.
We’re not DuraFlex authorized - we’re an independent DuraFlex service provider - but we source OEM and quality aftermarket parts through our Haven buying network at prices that stay honest. When DuraFlex backorders a Pro gasket or an SS liner section, we cross-reference HeatShield and Gelco equivalents that meet or exceed the spec, document the substitution, and warranty the work anyway under our 365-Day Done Right Promise. Background-checked techs, license on every page, live phone support around the clock. That’s the Haven Standard.
FAQs
No. DuraFlex warranties cover manufacturing defects in the product itself, not who installs or services it. We document every part number and installation detail so your warranty claim stays clean if you ever need it. If you’re unsure what’s covered, call (470) 288-2763 and we’ll walk through your paperwork.
Look for a stamped metal tag on the liner collar, vent elbow, or top plate - DuraFlex stamps model and date codes on every major component. If you can’t find it or don’t want to crawl into the firebox, we’ll identify it during our free camera inspection. Most Marietta homes built between 1995 and 2015 with a gas insert or stainless liner relining have some DuraFlex in the stack.
Repair makes sense for isolated damage - one bad gasket, a cracked top plate, a foot of wall-thinned liner at the top. Replace the full run when we find multiple failure points, when the liner is aluminum serving a wood burner (wrong material for the fuel), or when the cost of spot repairs approaches 60% of a new drop. We show you the camera footage, name both numbers, and let you decide. No work starts until you sign a written scope.
Most single-component jobs - gasket, top plate, section replacement - finish in 2-4 hours. Full liner replacements run a full day, sometimes two if we’re rebuilding the crown or pouring a new top plate base. We book by the job, not the hour, so the price doesn’t move if we hit a snag. Call (470) 288-2763 for availability.
We stock common DuraFlex gaskets, draw bands, and top plates at our Marietta warehouse. For less common SS liner diameters or custom lengths, we pull from the Haven buying network with DuraFlex, Olympia Chimney, and Copperfield - usually 2-3 business days. If your heat is down and we don’t have the exact OEM part, we’ll quote a quality aftermarket equivalent that meets the spec, document it, and warranty it the same.
Ready to see what’s actually in your chimney? Call (470) 288-2763 for a free estimate. We’ll run the camera, name the price in writing, and let you decide what happens next.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners Marietta at Emberly Chimney Cleaners Marietta, serving Marietta and nearby areas.



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