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 Sweep in Alpharetta: What to Know First
DuraFlex chimney sweep service in Alpharetta typically runs $189 to $329 for a standard cleaning and Level 1 inspection, and we complete most DuraFlex jobs the same day we arrive. We’re an independent DuraFlex service provider, not a factory-authorized shop, which means we call it straight: if your liner is sound, we’ll tell you; if it isn’t, you’ll see the camera footage with your own eyes before we quote a single dollar. This page is written for Alpharetta homeowners who own a DuraFlex liner or are considering one, and who want to know what sweeping that specific product actually involves. Call (762) 600-1468 and you’ll get a live person, not a voicemail tree.
How DuraFlex Products Fail – and How We Fix Them
DuraFlex makes solid products, but every liner wears in its own way. Here’s what we regularly find during DuraFlex chimney sweeps in Alpharetta homes, and how we address each one.
- DuraFlex 316L corrugated liner creosote packing in the corrugations. The ribbed wall is what gives DuraFlex its flexibility, but those ribs also catch more creosote than a smooth liner, especially in Alpharetta’s humid shoulder seasons when fires burn cooler and produce more smoke. We run a rotary brush sized specifically to the corrugated profile, not a flat cable brush, and we spend extra time on the lower third of the liner where packing is worst. Swap the brush, and you’re not actually cleaning the rib valleys.
- DuraFlex AL 29-4C ovalized runs in older Alpharetta chimneys. Clay-tile flues in 1980s subdivisions off Rucker Road and elsewhere are rarely perfectly round, and an ovalized DuraFlex liner can develop flat spots where creosote bakes on hard. We see this most often after a couple of seasons of occasional use. Our fix is a gentler cleaning pass followed by a Level 2 camera inspection to confirm the corrugations still have their shape and there’s no cracking at the oval transition points.
- Weld seam fatigue at the DuraFlex connector collar. The collar where the liner meets the appliance connector takes the most heat cycling. After enough Alpharetta winters, the seam can develop a hairline split you can’t see from the firebox. During a sweep we always inspect this collar with a camera right at the appliance connection, and if the seam is opening, we’ll quote you on a new connector section rather than let it fail mid-season.
- Improperly terminated DuraFlex caps causing backdraft and heavy soot buildup. North Fulton wind patterns, especially in higher-elevation neighborhoods like Windward and Crabapple, can pull smoke back down a chimney if the cap is undersized for the liner. When we see heavy soot at the top of a DuraFlex system on every sweep, the problem is rarely the liner. We’ll check the cap sizing against the liner diameter and correct the termination if it’s undersized, which usually cuts soot buildup by half or more.
- Third-party “bargain” liners installed wrong and labeled as DuraFlex. We’ve been called to Alpharetta homes where the seller claimed a DuraFlex install, but the camera shows an off-brand corrugated liner with poor seam overlap. That’s not a DuraFlex failure, it’s a dishonest install. If you’re not sure what’s actually in your chimney, we’ll document it on camera during the sweep and give you a straight answer, because our guarantee only makes sense on top of a liner we can actually verify.
Styles & brands we work with





Our DuraFlex Chimney Sweep Process
- 1
Call and scheduling. You reach a live person at (762) 600-1468, pick a date, and we confirm a written price by phone before anyone schedules the truck. That number doesn’t move when we arrive.
- 2
Arrival and setup. Background-checked, uniformed techs show up in a marked Flint Chimney Co Alpharetta van. Drop cloths go down from the hearth to the front door, and the fireplace gets sealed before the first brush goes up.
- 3
DuraFlex-specific sweep. We use the right brush head for your liner’s profile and diameter, sweeping from the top down or bottom up depending on access. We slow down through the corrugations and connector sections rather than brute-forcing the brush through.
- 4
Camera documentation. After the sweep, we run a Level 1 or Level 2 camera inspection through the full liner length. You’ll see the footage. We don’t recommend repair work you can’t see evidence for.
- 5
Written findings and price. If we find a genuine issue, you get a written report and a written quote before any repair happens. If you decide to wait, we tell you exactly how long that’s safe.
- 6
Cleanup and guarantee. We leave the hearth cleaner than we found it, fold up the drop cloths, and record your job in our system. Every DuraFlex sweep we perform is covered by our 365-Day Done Right Promise: if anything we touched is not to spec within a year, we come back at no charge.
See the difference
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AfterWhat DuraFlex Chimney Sweep Costs in Alpharetta
We don’t make you call to learn the ballpark. Here are the numbers for DuraFlex-specific work in Alpharetta:
- Standard DuraFlex sweep with Level 1 inspection: $189 to $269, depending on liner diameter and roof access.
- DuraFlex sweep plus Level 2 camera inspection: $279 to $329.
- Heavy creosote removal (glazed or packed): add $60 to $120, based on how much chemical treatment and scraping is required.
- DuraFlex connector replacement or section repair: $340 to $780, quoted after camera documentation, in writing, before work begins.
The biggest price variables are liner height, roof pitch, and how long it’s been since the last cleaning. A two-story chase on a steep pitch costs more than a single-story direct run. But the written quote is the written quote; we don’t discover fees on site. Call (762) 600-1468 for a free estimate, and we’ll give you a number that holds up in writing.
Why Alpharetta Homeowners Call Flint Chimney Co Alpharetta for DuraFlex Work
We run on The Garrison Standard, the same code every Garrison Partners location follows, and it means one thing: what we promise is what gets written down. Every DuraFlex sweep in Alpharetta gets a written price before work starts, a written guarantee after it’s done, and a 365-Day Done Right Promise that sends us back at no charge if a covered repair fails within a year. Our techs know DuraFlex corrugation patterns and failure points from hundreds of local jobs, and if your system needs a different material, we also work with HeatShield and Gelco so you’re never locked into one answer. Hank Delano put more than two decades into hands-on chimney work before bringing Flint Chimney Co to Alpharetta, and he runs the crew the same way he learned the trade: one fact at a time, no upsell, no vague assurances.
FAQs
Once a year at minimum, and more often if you burn more than two cords of wood in a season. Alpharetta’s humidity makes creosote form faster than in drier climates, so a September sweep ahead of the burning season is the practical standard. Call (762) 600-1468 and we’ll book a date that works.
No. Regular mechanical sweeping with a properly sized brush is exactly what DuraFlex and every professional chimney organization recommend. The warranty stays intact as long as the sweep doesn’t damage the liner, which is why we match brush profile to corrugation and inspect with a camera after every pass. If you’re concerned about warranty compliance, we’ll document the cleaning method and liner condition in writing.
Yes, and that’s most of what we do. We don’t care who put it in. We’ll run a camera through it, tell you what’s in the flue, and clean it to spec. We’re an independent provider, so the only thing that matters is the condition of the liner, not the sticker on the side.
You’ll see the camera footage. We don’t ask you to trust a verbal recommendation. If there’s a crack, a failed seam, or a collapsed corrugation, it shows up on the monitor, and we’ll explain what it means and what it costs to fix. If the liner is healthy, we’ll tell you that too, and the sweep is all you pay for. Call (762) 600-1468 to schedule a Level 2 inspection if you have any doubt.
Most calls get scheduled within three to five business days, and our phones are answered by a live person 24/7, so you can book at any hour. We don’t run countdown timers or “only two slots left” games; we just pick a date, put it on the calendar, and show up inside the window we gave you.
If you own a DuraFlex chimney system in Alpharetta and you want a company that puts the price, the scope, and the guarantee in writing before one tool comes off the truck, call (762) 600-1468. Tell us what’s in your 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.