Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
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 Crown Repair: The Marietta Owner’s Guide
We stock and install DuraFlex-compatible crown repair components here in Marietta, with most jobs running $340 to $680 installed depending on the damage and liner condition. Most crown failures show up after a heavy rain when you notice water staining on the ceiling near the fireplace or a drip inside the firebox. We’ll get you on the schedule fast and have a written price in your hand before any work starts.
Cory Mitchell and our crew have been pulling apart Marietta chimneys long enough to know that a cracked crown is rarely just a crown problem. The crown (that concrete cap at the very top of your chimney) takes a beating from Georgia weather, and when it fails, water works its way down into your DuraFlex liner system faster than most homeowners expect. If you’re seeing water inside the firebox or efflorescence (white mineral staining) on the brick near the top, the crown is usually the entry point.
Which DuraFlex Models This Applies To
DuraFlex liner systems are used across a wide range of chimney heights and appliance types, and crown repair work applies to every one of them. The compatibility question is less about which specific DuraFlex series you have and more about how the liner terminates at the crown. DuraFlex aluminum and stainless liners both tie into the crown with a top plate and rain cap, and when the crown around that assembly degrades, it compromises the seal regardless of liner diameter.
The key compatibility gotcha in Marietta is this: if your crown was poured flush around the liner top plate rather than formed with a proper overhang and drip edge, it tends to fail earlier. Georgia’s freeze-thaw cycle (yes, we get enough of them in Cobb County to matter) works water into any hairline crack, and by spring you’ve got spalling, which is the technical term for concrete flaking off in chunks. We stock crown repair materials sized to common DuraFlex terminations, including 5.5-inch to 6.5-inch top plates, and our techs know how to match the repair to your specific liner installation without disturbing the liner itself.
Hadley Chimney Marietta is an independent service provider, not affiliated with DuraFlex. We choose to work with their systems because the parts hold up, and we’ll always tell you when an OEM DuraFlex component is the right call versus a quality aftermarket equivalent that does the same job for less.
Styles & brands we work with





Signs Your DuraFlex Crown Repair Is Failing
- Water in the firebox after rain: This is the most common first signal in Marietta, especially on older homes near the Marietta Square where chimneys sit tall and exposed. The crown crack lets water run down the outside of the liner, and gravity does the rest. We usually confirm this with a quick photo before recommending anything.
- White mineral staining on the chimney brick: Efflorescence means water is moving through masonry it shouldn’t be. It’s not dangerous by itself, but it tells us the crown is no longer shedding water away from the chimney structure.
- Spalling or flaking concrete at the crown surface: You can often see this from the ground with a decent pair of binoculars. Once the crown starts shedding aggregate, the damage accelerates, and the underlying concrete keeps absorbing water through every cycle of rain and sun.
- Loose or shifting rain cap: If you push gently on the cap and it wobbles, the crown around it has lost structural integrity. The cap itself might be fine, but the anchor points are gone, and that means the crown is shot.
- Musty smell near the fireplace: Water that gets behind the liner and into the chimney chase creates a damp, closed-in smell that’s especially noticeable during humid Marietta summers. By the time you can smell it, the water has been getting in for a while.
One thing we tell every homeowner: none of these symptoms get better on their own. Crown failures are progressive in Georgia’s climate, and the cost to repair goes up the longer the water keeps moving through the system.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
Here’s what a DuraFlex crown repair in Marietta actually costs, installed:
- Crown recoat and seal: $340 to $480
- Partial crown rebuild (with proper overhang and drip edge): $480 to $620
- Full crown replacement with new top plate seal: $620 to $680
The range depends on crown condition, chimney height, and whether the existing top plate can be resealed or needs replacement. Every quote includes parts, labor, and a written guarantee. We don’t charge for the camera inspection and photo report, and you’ll get a written price before anyone picks up a trowel. If the repair fails within 365 days, we come back and make it right at no charge. That’s the 365-Day Done Right Promise, and it’s written into every job we do in Marietta.
DIY or Call Us?
You can safely check your crown from the ground with binoculars or from a ladder if you’re comfortable on one. Look for cracks wider than a credit card, flaking concrete, or vegetation growing in the crown surface. That’s where DIY should stop.
Working on a chimney crown means being on a roof with tools and materials while dealing with height, slope, and sometimes tricky access. Our techs do this every week, and we carry the fall protection and tooling to do it safely. More importantly, a crown repair has to tie correctly into your DuraFlex liner termination. Get the seal wrong and you’ve spent a weekend sealing a leak you didn’t actually fix. If you’re unsure, call us at (762) 249-4619 and we’ll talk through what you’re seeing before you spend a dime.
FAQs
A properly poured crown with a correct overhang and drip edge should last 15 to 20 years in Georgia weather before needing meaningful attention. Recoats and sealants on top of an existing crown usually last 5 to 7 years. The freeze-thaw cycles and intense summer heat in Cobb County shorten the lifespan compared to drier climates, which is why we pour our rebuilds with a proper drip edge instead of just patching what’s there. Call us at (762) 249-4619 for an exact assessment of your crown.
Yes, if the concrete is still structurally sound and only has surface cracking, a recoat and seal is a legitimate fix. If the crown is spalling, crumbling, or has lost its overhang, repair compounds won’t hold, and a partial or full rebuild is the honest answer. We’ll show you photos of exactly what we found before we recommend anything.
Most crown repairs take half a day to a full day on site, depending on weather and the condition we find once the old material is removed. We schedule a specific arrival window and text you when we’re on the way, so you’re not sitting around waiting all day. The material cure time means we won’t light a fire the same day, but that’s the only real waiting period.
We stock common crown repair materials for standard DuraFlex terminations on our trucks, including sealants, top plates, and drip edge forms. For anything unusual, we source parts from local suppliers in the Marietta area and can usually have them within a day or two. If you want to know whether we have your exact setup covered, call (762) 249-4619 and we’ll check while you’re on the phone.
Written by Cory Mitchell, Owner, Hadley Chimney Marietta at Hadley Chimney Marietta, serving Marietta and nearby areas.