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 Cap & Crown in Marietta: What to Know First
We provide independent DuraFlex chimney cap and crown service in Marietta, typically scheduling within a week and completing most jobs in a single visit. Every DuraFlex job starts with a camera inspection and ends with a written warranty, and you’ll see the price in writing before we touch a tool. This page is for homeowners who know they’ve got DuraFlex components on their chimney and want to understand what fails, what it costs, and who can fix it without voiding whatever warranty remains. Call (470) 288-2763 to book or get a free written estimate.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex 316Ti and 304 stainless liners with integrated top plates - The factory seal between the flexible liner top plate and the chimney crown often cracks after 8-12 years in Marietta’s freeze-thaw cycle. Water gets behind the plate, rusts the liner termination, and stains the brick below. We remove the compromised plate, inspect the liner end with a camera, and install a new DuraFlex-compatible top plate with a poured crown seal rated for Georgia clay expansion.
- DuraFlex Pro and DuraFlex SW (smooth wall) multi-flue caps - The mesh on these caps is 5/8-inch, which is fine for most areas but clogs faster in Marietta’s oak-heavy canopy, especially near Kennesaw Mountain where pollen and leaf debris load is heavy. We see collapsed mesh from homeowners hitting it with a broomstick instead of brushing it. We replace with same-spec DuraFlex mesh or upgrade to Gelco’s 304 stainless 5/8-inch with a stiffer frame if the flue size allows.
- DuraFlex factory chase covers on manufactured chimneys - The galvanized steel versions used in 2015-2019 builds around east Marietta develop pinhole rust at the diverter ridges within six years. By the time you see a ceiling stain, the plywood beneath is often soft. We swap to a DuraFlex-compatible 304 stainless chase cover or a custom-fabbed copper unit if the chase geometry is irregular, always with a photo record of the deck condition underneath.
- DuraFlex crown wash systems on historic conversions - Older homes along Whitlock Avenue sometimes have DuraFlex liners pulled through unlined brick chimneys with a thin crown wash poured over the original brick top. The wash shrinks away from the liner collar, creating a gap that funnels water directly onto the smoke shelf. We grind back to sound masonry, install a proper DuraFlex top plate with storm collar, and re-pour with a bonded crown mix sloped 1/4-inch per foot.
- DuraFlex wind-directional caps in high-exposure Marietta lots - The rotating hood on DuraFlex’s wind-directional cap seizes when the bushing fills with creosote dust, common with supplemental wood heat in January and February. A seized cap blocks exhaust and backdrafts cold air. We disassemble, clean the bushing housing, and repack with high-temp grease; if the hood is warped from heat cycling, we source a replacement through Haven’s buying network rather than forcing a generic fit.
Our DuraFlex Chimney Cap & Crown Process

- 1
Call and schedule. A live person answers. We ask for the DuraFlex model if you know it, the chimney configuration, and what you’re seeing. We book a window and text when the tech is en route.
- 2
Camera inspection first. Corrine Halstead’s rule: camera first, quote second, work third - in that order, every time. We run the camera down the flue to document liner condition, then inspect the crown, cap, and flashing from the roof. You see what we see.
- 3
Written price and scope. Before any work starts, you get a written price, a written scope, and a written warranty. This is Haven Standard Clause 1. No surprises, no pressure.
- 4
Parts decision with full context. We stock DuraFlex OEM caps, crowns, and top plates, plus HeatShield and Gelco alternatives where they fit better or save money without compromising function. We explain the trade-off and let you choose.
- 5
Repair and test. We install, seal, and verify: smoke test for draft, mirror check for gaps, and a final camera pull to confirm nothing shifted during the work.
- 6
Documentation and guarantee. You receive a photo record of before, during, and after - Haven Standard Clause 4, same as every job since 2009 - plus the 365-Day Done Right Promise in writing.
Before
AfterWhat DuraFlex Chimney Cap & Crown Costs in Marietta
| Service | Typical Range |
|---|---|
| DuraFlex cap replacement (standard single-flue) | $280 - $440 |
| DuraFlex multi-flue cap with custom fit | $520 - $780 |
| Crown repair with DuraFlex top plate reseal | $640 - $1,100 |
| Full crown rebuild with DuraFlex storm collar | $1,400 - $2,200 |
| Chase cover replacement (DuraFlex-compatible stainless) | $890 - $1,450 |
| Camera inspection and written estimate | Free |
What moves the price: accessibility (steep roof, tight clearance), whether the liner termination needs reworking, and if the crown has active leaks into the firebox. We don’t recommend crown rebuilds without showing you the camera evidence. Call (470) 288-2763 for an exact quote - 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 Marietta’s 2015-2022 builds run DuraFlex liners from the original construction. Our techs know the difference between a DuraFlex 316Ti termination and a DuraFlex Pro cap without checking the manual. When DuraFlex parts are backordered, we source equivalent HeatShield or Gelco components through Haven’s buying network so you’re not waiting weeks for a cap while water gets in. Every job carries the 365-Day Done Right Promise, and if another company handed you a quote that doesn’t sit right, we’ll give you a free second opinion with our own camera footage.
FAQs
No - as an independent DuraFlex service provider, we use OEM or equivalent-spec parts and document our work, which satisfies most remaining warranty terms. We are not affiliated with or authorized by DuraFlex, but we know their warranty language and can show you what documentation to keep for any future claim.
Most standard cap replacements are done in 90 minutes to two hours, including the camera inspection. Multi-flue caps or jobs requiring crown repair take half a day. We’ll tell you which yours is before we start.
We stock common DuraFlex caps, collars, and top plates at our Marietta warehouse. Specialty sizes or discontinued series ship in 3-5 business days. If your chimney is exposed to weather, we’ll install a temporary cap at no extra charge while we wait.
Cracks under 1/8-inch wide with no spalling or leaking can be coated. Cracks wider than that, visible rust streaks on the brick, or soft spots in the crown mean rebuild. We show you the camera and the roof photos so you can see the difference yourself.
Water enters the flue, accelerates liner corrosion, damages the smoke chamber, and can reach the firebox framing. In Marietta’s humid summers, that moisture also grows odor-causing bacteria in the ash dump. The repair cost triples within two to three years. Call (470) 288-2763 and we’ll show you exactly what your chimney looks like right now.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners Marietta at Emberly Chimney Cleaners Marietta, serving Marietta and nearby areas.



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