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.
Copperfield Crown Repair: The Marietta Owner’s Guide
A Copperfield crown repair in Marietta typically runs between $450 and $900 installed, depending on whether we’re rebuilding the existing crown, pouring a new cast-in-place crown, or installing a pre-cast Copperfield replacement cap. We stock Copperfield-compatible crown materials on our trucks and can usually complete the job in one visit, often the same day you call. Most Marietta homeowners discover the problem the same way: they spot chunks of cracked concrete or mortar on the roof or ground after a heavy rain, or they notice water staining on the ceiling near the chimney chase. The crown, that concrete or mortar slab that sits on top of the chimney and sheds water away from the flue, takes a beating in Georgia’s freeze-thaw cycles and summer downpours, and Copperfield crowns are no exception.
If you’ve got a Copperfield chimney cap or crown that’s cracked, spalling, or letting water run down the brick, you’re in the right place. We know this specific part, we know how it fails in Cobb County weather, and we’ll tell you the price before we touch anything.
Which Copperfield Models This Applies To
Copperfield manufactures chimney crowns and caps in a few distinct lines, and the repair approach changes depending on which one you have. The most common units we see in Marietta are the Copperfield stainless steel multi-flue caps with integrated crown shrouds and the Copperfield cast-in-place concrete crown forms used on masonry chimneys. Multi-flue caps from Copperfield come in standard widths matched to common flue tile sizes, typically 8″ x 8″, 8″ x 13″, and 13″ x 13″, but the crown that those caps sit on is often a custom field-poured concrete slab. That matters because the failure point is rarely the cap itself, it’s the concrete or mortar underneath it.
If you have a Copperfield pre-cast crown, you’ll find the model number stamped on the underside of the overhang, usually a four- or five-digit code starting with “CP” or “CF”. Take a photo of it before you call, it helps us confirm compatibility and bring the right replacement on the first trip. For cast-in-place crowns, there’s no part number to match. The fix involves forming and pouring a new crown to the exact dimensions of your chimney’s outside profile. One gotcha we see regularly in Marietta: Copperfield caps designed for the West Coast market sometimes ship with a shallower drip edge than what Georgia’s rainfall demands. A crown with less than a 2-inch overhang and no drip kerf will let water run straight down the brick face, which is exactly how you end up with spalled brick and a rotted chase top. When we pour or install a Copperfield crown here, we make sure the overhang and the drip edge are built for Cobb County weather, not Sacramento.
Ashby Chimney Marietta is an independent chimney service company. We’re not affiliated with Copperfield, but we install and repair their products because they’re well-built and we can stand behind the finished work.
Styles & brands we work with





Signs Your Copperfield Crown Repair Is Failing
- Cracked or missing concrete on the crown surface. Freeze-thaw cycles in Marietta winters force water into hairline cracks, where it expands and pops off chunks of the crown. You’ll see pieces of gray concrete on the shingles or in the gutter below the chimney.
- Water stains on the ceiling or walls near the chimney. When the crown fails, water travels down between the flue and the chase, showing up as brown rings on interior drywall. By the time you see the stain inside, the crown has been leaking for months.
- White efflorescence on the brick below the crown. That chalky white residue is minerals leaching out of the masonry. It’s a sign water is being absorbed into the brick and evaporating through the face, which over time causes the brick surface to flake off in layers.
- Rust streaks on the chimney cap or damper. If your Copperfield cap’s metal components are rusting, water is pooling on the crown or running down through the cap assembly. A properly sloped crown should drain water away in minutes, not hold it against the metal.
- Spalled brick faces near the top of the chimney. When the crown fails, the top four or five courses of brick soak up water and begin to shed their outer faces. Walk out to the street and look at your chimney with a pair of binoculars. If the brick looks like it’s peeling, the crown has been compromised for a while.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
Here’s the straight answer on Marietta pricing for Copperfield crown work. A basic crown recoat, where we clean the existing crown, fill minor cracks with a flexible crown sealant, and re-slope the surface, runs $450 to $600. A full tear-out and poured replacement crown, which means removing the old concrete, building a form, and pouring a new crown with the proper slope and drip edge, runs $650 to $900 for a standard single-flue chimney. Multi-flue chimneys or chimneys with unusual footprints run higher, and we’ll give you the exact number before we start.
Every crown repair includes the same things whether your chimney is in Historic Marietta Square or out near East Cobb: removal of loose material, repair or replacement of the crown, sealing around the flue tiles, and a written guarantee on the completed work. Parts and labor are always quoted as one flat price, so the invoice matches the number we gave you at the door. Nathan Corliss and his crew at Ashby Chimney Marietta have worked on plenty of older homes near Kennesaw Mountain with original flues from the 1960s and 70s, and those chimneys don’t forgive shortcuts. We don’t take them.
DIY or Call Us?
You can safely do two things yourself: inspect the crown from the ground with binoculars and take photos of any damage, and keep the chimney cap clear of leaves and pine needles so water isn’t trapped against the crown. That’s where we’d stop. Working on a chimney crown means getting on the roof, and that’s where the risk starts. It’s not just the height; it’s the slope, the heat radiating off the shingles, and the fact that a cracked crown often sits on brick that’s already weakened. One wrong step on spalled brick and you’re sliding toward the gutter.
Replacing a crown correctly also requires building a form, mixing refractory concrete, and pouring it with a minimum 2-inch overhang and a drip edge, which is a detail most DIY pours miss. We’ve rebuilt enough botched homeowner crowns across Marietta to know it’s cheaper to do it once the right way. If you’re seeing any of the warning signs above, call us at (478) 796-8742. Tell you the price first, show you the work, put it in writing, that’s the whole job.
FAQs
A properly poured and sealed chimney crown should last 20 to 30 years in Marietta’s climate, though crowns with inadequate overhang or slope can fail in as little as 5 to 8 years. Georgia’s freeze-thaw cycles and heavy summer rains shorten the lifespan compared to drier climates. Call (478) 796-8742 and we’ll assess what’s realistic for your chimney.
Yes, if the crown has minor surface cracks but is still structurally sound, we can recoat it with a flexible crown sealant and extend its life by several years. If the concrete is spalling or the crown has sunk on one side, replacement is the only repair that holds. We’ll show you photos of the condition before recommending either route.
Most Copperfield crown repairs in Marietta take 3 to 5 hours on site, and the chimney is usable the same evening. A full tear-out and repour may require the crown to cure for 24 hours before it’s fully hardened, but the chimney remains safe to use in most cases. Call (478) 796-8742 for a time estimate on your specific chimney.
We keep Copperfield-compatible crown forms, caps, and sealants on our trucks, along with materials from DuraFlex, HeatShield, and Gelco, so there’s no wait for a special order on most jobs. If your chimney needs a non-standard size, we can typically have it within a few days. Call (478) 796-8742 and we’ll confirm what’s on hand before we schedule.
Written by Nathan Corliss, Owner, Ashby Chimney Marietta at Ashby Chimney Marietta, serving Marietta and nearby areas.