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.
DuraFlex Chimney Cleaning in Kennesaw, GA | Ashby Chimney Marietta
We provide independent DuraFlex chimney cleaning and service across Kennesaw. We’re not manufacturer-affiliated or authorized, and we’ll tell you that straight. What makes our DuraFlex work different here is simple: we camera-scan every liner before we touch it with a brush. Call (478) 796-8742 and you’ll get a written price before any work starts.
Nathan Corliss and our crew have pulled enough DuraFlex liners out of Kennesaw chimneys to know exactly how this flexible stainless system behaves under Georgia humidity. Older brick chimneys near downtown, newer zero-clearance boxes in the subdivisions off Cherokee Street, we’ve seen both. The liner is the only barrier between hot flue gases and your wood framing. We treat it that way.
Why Kennesaw Residents Choose Us for DuraFlex Service
DuraFlex liners show up in two very different Kennesaw homes: the original 1990s-era zero-clearance fireplaces and the retrofit jobs where somebody finally lined a 1920s brick chimney. We know both installations well. Nathan picked up his trade fundamentals at Los Angeles Trade-Technical College before chimney work pulled him into a career he’s stuck with for going on twenty-two years. He and the crew have covered a wide stretch of metro Atlanta, including plenty of fireplaces near Kennesaw Mountain, older houses with older flues that demand a steady hand.
When we service DuraFlex here, we use genuine DuraFlex components to match existing liner diameters or connect to OEM appliance collars. For complete relines we often reach for high-grade 316L alloy flex that meets or exceeds the original spec. We stock common diameters locally so a Kennesaw job doesn’t wait a week on a distributor ship-out. And every tech who walks through your door is background-checked and uniformed. You know exactly who’s in your home.
Our phones are answered by a live person, 24/7. No voicemail loops. No callback forms. If your liner’s acting up on a Sunday night in February, somebody picks up.
Styles & brands we work with
Common DuraFlex Chimney Cleaning Problems We Solve in Kennesaw
- Kinked or creased liners from settling masonry. Kennesaw’s clay soil holds moisture, and that moisture cycles through expansion and contraction as seasons shift. Older brick chimneys downtown shift with it. When the chimney moves even a quarter inch, a thin-wall flex liner can kink at the offset. The liner still looks fine from the top, but a camera scan shows the crease. A kinked liner traps creosote and restricts draft.
- Corrosion pitting at weld seams. DuraFlex’s welded seams are its strength, but they’re also the first place acidic creosote attacks. Kennesaw’s humidity means condensation lingers inside the liner long after the fire’s out. If the fireplace only gets used a handful of times each winter, that moisture sits on the seams and starts pitting them. We find this constantly in homes where the fireplace is more decorative than functional.
- Loose or detached liner connectors. In the 1990s spec-built subdivisions around Kennesaw, we see a lot of original DuraFlex installations where the connector bands were never properly torqued. Twenty years of thermal expansion and contraction works them loose. A gap opens where hot gases and sparks can escape into the chimney chase. The homeowner has no idea until a Level 2 inspection finds it.
- Crushed or collapsed liner sections from improper sweeping. This one makes us wince. A previous sweep, or a DIY attempt with a rotary brush meant for masonry tile, abrades the thin-wall flex. Metal brushes that spin too aggressively on stainless flex will chew through it. We remove DuraFlex, we don’t beat on it with the wrong tool.
- Blocked liners disguised as draft problems. A homeowner in Kennesaw calls about smoke backing into the living room. They assume the fireplace needs cleaned again. What we often find is a partial collapse or a creosote-glazed section so thick the flue diameter is effectively cut in half. The fix isn’t another sweep. The fix is assessing whether the liner can be saved or needs replacement.
DuraFlex Service in Kennesaw: What Local Conditions Mean for Your Equipment
Kennesaw’s patchwork of historic brick chimneys near the old railroad depot often lack clay tile liners entirely. We’re talking chimneys built when the city was a Civil War railroad stop, long before anyone thought about stainless steel flue liners. When we install or service DuraFlex in those homes, the liner is the only barrier between hot flue gases and the surrounding wood framing. That’s why a Chimney Inspection in Kennesaw with a camera scan is the single most important step before any cleaning or use. No scan, no sweep. We will not put a brush inside a DuraFlex liner we haven’t seen on screen first. It’s not a sales tactic. It’s the difference between finding a collapsed section and pushing creosote past it into the chase. In the Shiloh Hills neighborhood, our tech pulled an 8-inch DuraFlex Pro liner from a 1994 gas fireplace converted to wood and found a 6-foot section near the top had collapsed inward from a previous sweep’s overly aggressive rotary brush. The homeowner’s annual inspection had skipped the camera scan, so the blockage had been venting carbon monoxide into the chase for months. We removed the compromised liner, upsized to a 316L alloy flex with welded seams, and installed a custom multi-flue cap to keep rain and animals out.
DuraFlex Models & Products We Service in Kennesaw
We service the full DuraFlex line you’re likely to find in a Kennesaw home: DuraFlex Pro, DuraFlex SW, DuraFlex 304L, and DuraFlex 316L. The Pro is the most common one we pull from 1990s-era zero-clearance units. The SW shows up in mid-grade installations. The 304L and 316L distinctions matter for corrosion resistance, and we’ll explain the difference without making you feel dumb for asking. We also inspect and replace the supporting hardware: connector bands, top plates, caps, and the flashing where the liner exits the chimney crown. If a part’s still good, we say so. We specify genuine DuraFlex components when matching an existing liner diameter or connecting to OEM appliance collars. For full relines and repairs, we reach for high-grade 316L alloy flex that meets or exceeds DuraFlex’s original specs. We’re upfront when a liner is too deteriorated or improperly sized to save. Recommending replacement over patchwork fixes is the honest call, and we make it without pressure.
Looking for broader DuraFlex sales & service coverage? We carry the common diameters and connectors, so most Kennesaw jobs don’t wait on a distributor.
See the difference
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AfterDuraFlex Service Pricing in Kennesaw
Plain numbers, the way Nathan prefers to talk. A standard Chimney Sweep - Kennesaw, which includes the DuraFlex-compatible brush work and our camera scan, runs between $189 and $269 depending on flue access and liner condition. A Level 2 inspection with the full camera scan is $199 to $299 as a standalone service, and it’s free with any reline we quote. Creosote removal for glazed or stage-three buildup runs between $350 and $600 because it requires chemical treatment or specialized tooling, never an aggressive rotary brush on flex. Custom cap supply and install typically lands between $275 and $450 depending on the flue configuration and whether you need a multi-flue cap.
What drives the price in Kennesaw specifically is liner condition. An older home near the railroad depot with a 1920s chimney and a retrofitted DuraFlex liner takes more inspection time than a 2005 subdivision fireplace with easy roof access. You get a written price before any work starts. The number on the invoice matches the number we quoted at the door. Call (478) 796-8742 for a free estimate, and we’ll tell you exactly what your liner needs and what it costs.
Serving Kennesaw, GA - Our Local Coverage Area
We’re based in the Kennesaw 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 – DuraFlex Chimney Cleaning in Kennesaw
Yes, but not with a standard brush. The chemical creosote removers sold at big-box stores often convert stage-two creosote into a hard, tar-like glaze that adheres to the stainless wall. On a DuraFlex liner, that glaze has to be treated with a professional-grade chemical application and then removed with a nylon or poly brush. We never use aggressive metal rotary brushes on flex. Call (478) 796-8742 and we’ll tell you what we’re dealing with after the camera scan, no guessing.
You don’t, not without a camera scan. Occasional use is actually harder on a liner than regular use in Kennesaw’s humid climate. The moisture from condensation sits on the stainless, mixes with acidic creosote residue, and starts pitting at the weld seams. There’s no visible sign from the outside. A Level 2 inspection with a camera is the only way to confirm the liner hasn’t corroded or collapsed. That inspection is free with any reline quote. If you haven’t had one in a few years, now’s the time.
The Pro uses a heavier-gauge 316L alloy and a smoother inner wall, which makes it the better choice for older Kennesaw chimneys that have offsets or slight bends from settling. The standard DuraFlex is lighter and lower-cost, fine for straight, short runs in newer construction. For a historic home near downtown with a tall, winding flue, we’d recommend the Pro or a 316L alloy flex of equivalent gauge. We’ll show you both options and the price difference on the written quote.
We see it regularly. An uninsulated liner in a masonry chimney loses heat faster, which means more condensation, which means faster corrosion pitting in Kennesaw’s damp air. The liner cools too quickly after a fire and the moisture from combustion gases condenses inside instead of venting out. That condensation carries creosote acids that eat at the weld seams. An insulated liner stays hotter longer, vents more completely, and lasts measurably longer. If yours was installed without insulation, we’ll flag it and tell you whether it’s worth relining now or whether the liner’s still serviceable.
Sometimes a section can be repaired with a connector and a new segment of flex. More often, by the time we find the damage on camera, there’s enough corrosion or creasing elsewhere in the run that a full reline is the honest call and the safer one. We don’t patch a liner that’s near the end of its service life just to get another season out of it. We’ll show you the camera footage and explain exactly what we’re seeing. Then you decide. Call (478) 796-8742 for the inspection.
Service Areas Near Kennesaw
We serve the full Kennesaw service area, and our trucks run regularly through Marietta, Dallas, and Powder Springs. If you’re a few exits up I-75 or out toward North Druid Hills, we can still get to you. We also provide DuraFlex service in Dallas and DuraFlex service in Marietta with the same written-price, camera-first approach.
Book Your DuraFlex Service in Kennesaw Today
Tell you the price first, show you the work, put it in writing. That’s the whole job. If your DuraFlex liner hasn’t been camera-scanned in the last two years, or if you’re noticing draft problems in your Kennesaw fireplace, call (478) 796-8742. We’ll get you on the schedule and send a background-checked, uniformed technician to your door with a real arrival window and a written quote before any work begins.
Written by Nathan Corliss, Owner at Ashby Chimney Marietta, serving Kennesaw since 2002.