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 Inspection in Alpharetta: What to Know First
We inspect DuraFlex chimney liners in Alpharetta homes every week, and most inspections take 45 to 90 minutes from ladder to written report. A standard DuraFlex flue inspection with camera runs $189 to $329 depending on roof access and liner length, and you get the full written findings before we leave the driveway. This page is for Alpharetta homeowners who own a DuraFlex liner, suspect something’s off, or just bought a house with one and want a straight answer on its condition. If you’d rather talk it through first, call (762) 600-1468 and you’ll get a live person, not a recording.
How DuraFlex Products Fail – and How We Fix Them
We work on DuraFlex liners as an independent DuraFlex service provider, which means we see how these systems actually hold up in Alpharetta’s climate ten, fifteen, twenty years after install. Here’s what we find, model by model, in the order we find it most.
- DuraFlex 316L smooth-wall liners: pitting at the tee connection. The 316L alloy handles Alpharetta’s humid summers fine, but the tee at the base of the liner is where condensation collects when a gas furnace vents through the same flue. We regularly see pinhole corrosion at the tee snout on liners that are otherwise solid. The fix is usually a tee replacement, not a full reline, and our camera inspection tells us which one you need before we quote anything.
- DuraFlex DuraVent rigid sections: leaking at the joints after storm-driven rain. Alpharetta gets real thunderstorms, and rigid DuraFlex sections installed without adequate top-plate flashing let water track down the outside of the liner. By the time you see a stain on the ceiling, the joint gaskets have usually absorbed enough moisture to degrade. We inspect the crown, flashing, and joint seals as part of every DuraFlex chimney inspection because the leak is rarely where the stain is.
- DuraFlex Pro (corrugated 316Ti): creosote packing in the corrugations on wood-burning fireplaces. The corrugations that give DuraFlex Pro its flexibility also give creosote a place to build. In Alpharetta homes that burn soft woods or unseasoned oak, we’ve measured creosote packed a quarter-inch thick in the valleys while the crowns stayed relatively clean. That’s a specific failure pattern that generic chimney brushes miss, and it’s why we camera every corrugated liner before recommending a sweep or a chemical treatment.
- DuraFlex AL (aluminum) liners: galvanic corrosion at the appliance adapter. Aluminum liners are rated for gas only, and in Alpharetta’s clay-heavy soil we see more condensation than average because crawl spaces stay damp. Where the aluminum liner meets a stainless appliance adapter, the dissimilar metals corrode the aluminum side. The liner passes visual inspection at the top and bottom, but the camera shows thinning at the adapter joint. We flag it before it becomes a CO leak into the mechanical room.
- DuraFlex rain caps and chase covers: freeze-thaw loosening. Alpharetta sits in a zone where winter nights dip below freezing often enough to work fasteners loose on chase covers and rain caps. A cap that’s simply sitting on top of the liner, not mechanically attached, is a carbon monoxide and water entry point. We re-secure or replace caps during inspection when the fasteners show movement.
Styles & brands we work with





Our DuraFlex Chimney Inspection Process
Here’s how a DuraFlex inspection runs at Flint Chimney Co Alpharetta, from the call to the clean-up.
- 1
Call and book. You reach a live person at (762) 600-1468, we confirm what you’re seeing, and we give you a two-hour arrival window that we actually keep.
- 2
Arrival and written scope. The technician walks the job with you, writes the inspection scope and price on paper, and you sign before a tool comes off the truck. No surprises at the end.
- 3
Condition assessment from the top down. We check the cap, crown, flashing, liner top, and chase top. Then we open the cleanout or thimble and run the camera from the bottom up. You see the screen live if you want to stand with us.
- 4
Parts decision. If a part needs replacement, we determine whether an OEM DuraFlex part or a quality aftermarket equivalent is the right call for your liner’s age and warranty status. We name the part and the price before we order anything.
- 5
The repair, if you approve. We complete the repair we quoted, test the draft and combustion air, and re-camera the repaired section.
- 6
Written report and guarantee. You get a written report with photos, findings, and what we fixed. Every repair carries a one-year written guarantee, and if a covered repair fails in that year, we come back at no charge.
See the difference
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AfterWhat DuraFlex Chimney Inspection Costs in Alpharetta
We’d rather you know the ballpark before you call. Here’s what we charge for DuraFlex work in Alpharetta.
- Level 1 inspection (visual, no camera): $189 to $249 for a single flue, depending on roof pitch and access.
- Level 2 inspection (with camera): $269 to $329 for a single DuraFlex liner, which includes the tee, adapter, and cap. This is the inspection we recommend for any home purchase or after any chimney fire, storm, or liner repair.
- DuraFlex tee replacement: $180 to $320, parts and labor, depending on liner diameter and access. We quote the exact number on paper before work starts.
- DuraFlex cap or chase cover re-secure/replace: $120 to $440, depending on cap size and whether we’re replacing the cover or just rehabbing it.
- Full DuraFlex reline: $2,800 to $6,500 for an average Alpharetta two-story home, depending on diameter, length, and whether we’re reusing or rebuilding the chase top. We only recommend a reline if the camera shows the existing liner is past saving, and we’ll send you the video.
What moves the price is roof pitch, chase height, liner diameter, and whether we need a lift or can work off a ladder. Every estimate is free, written, and yours to keep. Call (762) 600-1468 and ask for the DuraFlex inspection rate for your address.
Why Alpharetta Homeowners Call Flint Chimney Co Alpharetta for DuraFlex Work
Flint Chimney Co Alpharetta operates under The Garrison Standard, the same code every Garrison Partners location follows. That means a written price before any work starts, a written one-year guarantee on every repair, and a free return visit if a covered repair fails. We’ve been at this since 2002, and Hank Delano still runs the inspection crew himself on the complicated DuraFlex jobs. Our technicians are background-checked, uniformed, and trained on the specific failure modes of DuraFlex products. And when a DuraFlex liner isn’t the right fix, we work with HeatShield and Gelco products too, so you get the material your specific flue needs, not the one we happen to stock. If you’ve been burned by a chimney company that no-showed or moved the price at the door, our process is built so that cannot happen.
FAQs
No. A visual or camera inspection by an independent chimney service does not void a DuraFlex manufacturer’s warranty. We photograph everything, write up what we find, and you keep the report. If you do need a warranty claim, our documentation actually helps it move faster. Call (762) 600-1468 and we’ll walk you through what your specific liner’s warranty covers.
The camera decides. If the liner walls are intact and the problem is a failed tee, a corroded adapter, or a loose cap, we repair just that part and charge for just that part. If the camera shows thinning across large sections, significant pitting, or separated seams, we’ll show you the video and give you a written recommendation with a full reline price. We never recommend replacement without camera evidence you’ve seen yourself.
Yes. DuraFlex is one of the most commonly installed liner systems in the Atlanta metro, so OEM tees, caps, adapters, and connectors are stocked by our suppliers and typically arrive within a few days. For older DuraFlex Pro sections that aren’t manufactured anymore, we use quality aftermarket equivalents that meet the same UL listing and fit the existing liner footprint. We’ll tell you which is which and why before we order.
We recommend a camera inspection every two years for a wood-burning DuraFlex liner and every three years for a gas-only liner in Alpharetta. This area’s humidity and temperature swings age liners faster than the national average, especially at the tee and adapter connections. If you burn more than two cords a year or notice a change in draft, call (762) 600-1468 and we’ll get you on the schedule.
Yes. Level 2 camera inspections are our most common real estate call in Alpharetta, and we provide the written report with photos that buyers, sellers, and lenders expect. We schedule these on short notice during contract periods, and the report is yours regardless of how the sale goes. Tell us it’s a real estate inspection when you call and we’ll prioritize the report turnaround.
If you own a DuraFlex liner in Alpharetta and want a straight, documented answer on its condition, call (762) 600-1468. You’ll get a live person, a written price before work starts, and a report you can act on. Tell us what’s in the flue, and we’ll tell you what it takes to fix it.
Written by Hank Delano, Owner, Flint Chimney Co Alpharetta at Flint Chimney Co Alpharetta, serving Alpharetta and nearby areas.