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 Chimney Repair in Marietta: What to Know First
We provide independent DuraFlex chimney repair in Marietta, typically scheduling within 3-5 business days and delivering a written price before any work starts. Most DuraFlex liner, cap, and flashing repairs run $340-$1,850 depending on access height and whether the repair is surface-level or requires pulling the liner. Camera first, quote second, work third - in that order, every time.
This page is for Marietta homeowners who have a DuraFlex liner, cap, or chase cover installed and need repair work done by a technician who knows the product line, not a generalist who treats every flue the same. If you’re seeing water stains near your fireplace, rust streaks on the chimney chase, or draft problems that started after a storm, we can inspect it and give you a written scope with photos. Call (470) 288-2763 to book. Estimates are free.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex SS (stainless flex liner) - crevice corrosion at the tee body. The 316Ti alloy holds up well against flue gases, but the welded tee connection on early SS runs can develop pinhole leaks where condensate pools. In Marietta, we see this accelerated on north-facing chimneys that stay damp through our humid springs. We cut back to sound metal and splice in a new DuraFlex tee with a condensate drain, or switch to a rigid tee body if the offset allows.
- DuraFlex SW (smooth-wall) - liner collapse at unsupported offsets. The smooth-wall construction gives better draft, but it lacks the corrugation that helps standard flex hold its shape across a wide offset. We’ve found collapsed sections in Marietta’s 1960s ranch homes where the original installer ran a long unsupported horizontal. We pull a new SW section with proper support bands every 4 feet and a support plate at the base.
- DuraFlex Pro - premature refractory mortar failure in the top course. The Pro line’s refractory seal is excellent when fresh, but thermal cycling in Georgia’s freeze-thaw winters can cause it to check and spall at the exposed top. We grind back to substrate and reseal with HeatShield Cerfractory Foam, which bonds better to the Pro’s substrate than generic refractory mixes and carries its own 20-year warranty.
- DuraFlex chase covers - corner rust-through at drip edges. The stamped galvanized covers shipped with many builder-grade installations develop rust at the folded corners within 8-12 years. Marietta’s pollen season doesn’t help; it traps moisture against the metal. We measure in place and source a replacement through our Haven buying network, usually Gelco or a custom Copperfield stainless unit, with cross-breaks that shed water properly.
- DuraFlex termination caps - mesh screen clogging and wind-induced backdraft. The factory mesh on DuraFlex caps is 5/8-inch, which traps creosote flakes and cottonwood seed in Marietta’s late spring. We’ve also seen the low-profile caps reverse in gusts on homes near Kennesaw Mountain’s wind corridor. We clean or replace with a Gelco wind-resistant cap with 3/4-inch mesh and a proper rain skirt, or upsize to a Vacu-Stack if draft reversal persists.
Our DuraFlex Chimney Repair Process

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Book the inspection. Call (470) 288-2763 and speak to a live person. We confirm the DuraFlex product line if you know it, check our parts stock, and schedule a Level 2 camera inspection.
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Camera scan and documentation. Our tech runs a chimney camera from firebox to cap, records the footage, and photographs every defect. Clause 4 of the Haven Standard requires this photo record on every job - no exceptions.
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Written price and scope. We deliver a written price, written scope, and written warranty before any work begins. Haven Standard Clause 1: have it in writing. If you have a competitor’s written estimate, we’ll give you a free second opinion.
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Parts decision: OEM or quality aftermarket. We source DuraFlex OEM parts when they’re the right fit and in stock. When lead times stretch past two weeks or the OEM part has a known weakness, we specify a quality aftermarket equivalent - Gelco for caps, HeatShield for refractory, Olympia Chimney for rigid sections - and note the substitution in writing.
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Repair and live testing. We complete the repair, run a post-work camera pull to verify liner integrity and joint alignment, and test draft with a manometer. Smoke test if the repair involved the smoke chamber or damper.
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Documentation and guarantee. You receive the photo record, the final invoice matching the written price, and our 365-Day Done Right Promise. If it’s not done right, we make it right.
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AfterWhat DuraFlex Chimney Repair Costs in Marietta
| Repair Type | Typical Range | What Moves the Price |
|---|---|---|
| DuraFlex cap replacement (standard) | $340-$580 | Chase height, cap size, mesh specification |
| DuraFlex liner tee repair or replacement | $680-$1,200 | Access (crawl vs. interior chase), condensate drain addition |
| DuraFlex SW offset correction with supports | $890-$1,550 | Number of supports, liner length, demolition required |
| Chase cover replacement (Gelco/Copperfield stainless) | $720-$1,400 | Dimensions, cross-breaks, chimney height |
| Refractory seal repair (HeatShield on DuraFlex Pro) | $580-$1,100 | Linear feet, access, whether top plate removal is needed |
| Full DuraFlex liner pull and reline | $2,800-$4,500 | Flue length, number of offsets, appliance connections |
These are real ranges for Marietta homes we’ve worked on - from the brick ranches near Whitlock Avenue to the newer builds off Canton Road. Steep roofs, buried chimneys behind siding, and buried chase enclosures all add time. We tell you which factors apply to your job before you sign anything. Call (470) 288-2763 for a written estimate. Estimates are free.
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 growing share of them in Marietta run DuraFlex liners or caps. Corrine Halstead and our techs know the difference between a DuraFlex SS tee failure and a generic corrosion problem, and we stock the parts to fix it without a three-week wait.
Every job carries the 365-Day Done Right Promise, backed by the Haven Standard we’ve operated under since founding. Our technicians are background-checked, uniformed, and licensed - you’ll get a text when yours is en route. We also service HeatShield and Gelco systems, so if your DuraFlex repair reveals a secondary issue with another manufacturer’s component, we handle it in the same visit without bouncing you between contractors.
We’re independently owned and operated - not a franchise, not affiliated with DuraFlex - and we answer our phones live, 24 hours a day.
FAQs
No, if the repair is done with OEM or equivalent parts and documented properly. DuraFlex warranties cover manufacturing defects, not installation or repair work. As an independent DuraFlex service provider, we use parts that meet or exceed OEM spec and document every step, so your warranty remains intact for its original coverage period. Call (470) 288-2763 if you need help interpreting your warranty paperwork.
Standard DuraFlex tees, connectors, and cap adapters usually arrive in 3-5 business days through our Haven buying network. Custom chase covers or specialty offsets can stretch to 10-14 days. We stock common Gelco and HeatShield alternatives for urgent situations and will tell you upfront which route gets your fireplace safe faster. Call (470) 288-2763 to check current lead times.
Most DuraFlex liners can be repaired sectionally. A tee body replacement, a support band addition, or a top-seal repair is often sufficient. We only recommend full replacement when the liner shows multiple failure points, the alloy is thinned below code minimum, or the original installation was so substandard that patching would exceed replacement cost. You’ll see the camera footage and the price for both options before deciding. Call (470) 288-2763 for an inspection.
The symptoms overlap - water entry, draft issues, staining - but the cause differs. DuraFlex liner failures usually show as corrosion, collapse, or separation at joints visible on camera. Masonry problems show as spalling brick, missing mortar, or cracked crowns. In Marietta’s older homes, we often find both. Our Level 2 inspection identifies which is primary and which is secondary, and we quote each separately so you’re not sold a liner for a crown problem. Call (470) 288-2763 to sort it out.
Most DuraFlex repairs are scheduled within 3-5 business days and completed in a single visit once parts are on hand. Complex jobs - full relines, chase rebuilds, or repairs requiring scaffolding - may need a second day. We don’t promise same-day dispatch, but we do keep common DuraFlex and Gelco parts in stock to avoid delays. Your written estimate will include a clear timeline. Call (470) 288-2763 to book.
Ready for a written estimate? Call (470) 288-2763 to speak with a live person, or book your Level 2 camera inspection online. We’ll run the camera, name the price, and show you the photos before any work begins.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners Marietta at Emberly Chimney Cleaners Marietta, serving Marietta and nearby areas.



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