Masonry repair
Sweep & inspection
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 Orlando Owner’s Guide
If you have a DuraFlex chimney system and the crown is cracked, spalling, or letting water through, we stock DuraFlex-compatible crown repair materials on our trucks and complete most crown repairs in Orlando in a single visit. Installed crown repair for DuraFlex chimney systems in Orlando typically runs $350 – $700 depending on crown size, crack severity, and whether we need to rebuild or reseal. Most Orlando homeowners discover the problem the Florida way: a water stain on the ceiling below the chimney after a heavy summer storm, or small pieces of concrete showing up in the gutter.
Here’s the thing about crowns in central Florida: they take a beating from the wet season, long dry spells, and UV that never really lets up. A crown is the concrete cap at the top of your chimney that keeps water from running down the flue and behind your DuraFlex liner. When it fails, water gets where it shouldn’t, and that’s when the real damage starts. We’re an independent chimney service company, not affiliated with DuraFlex, but we work with their liner systems daily and understand exactly how a failed crown interacts with the rest of a DuraFlex setup.
Which DuraFlex Models This Applies To
DuraFlex makes flexible stainless steel chimney liners in two main product families: the standard DuraFlex (sold as a 316L stainless liner for gas and oil systems) and the DuraFlex Pro (a heavier 316Ti alloy rated for wood-burning and higher-temperature applications). Crown repair is compatible with both, because the crown itself sits above the liner termination, independent of the liner’s specific alloy or diameter. Whether your home has a DuraFlex 5.5-inch liner for a gas fireplace or a DuraFlex Pro 6-inch liner for a wood stove, the crown repair process is the same.
Where compatibility actually matters is the flue tile or liner termination point. If your DuraFlex liner terminates at the crown with a top plate and rain cap, a crown repair should preserve the pitch and drainage slope around that termination so water is directed away from the connection. Some Orlando homes have oval flues that were wrapped during the liner install. Others have square clay tile with a top plate adapter. We measure the crown’s overhang, the liner’s outside diameter, and the existing termination before we quote, because a crown that was poured too flat or with no drip edge will fail again no matter what material you use.
On the OEM versus aftermarket question: DuraFlex doesn’t manufacture crown repair compound as a proprietary product. The crown itself is custom-built for each chimney using cementitious materials, and what matters is the material performance: resistance to Florida’s expansion and contraction cycles, proper slope, and a drip edge so water doesn’t wick back underneath. We use professional-grade crown coats that bond to the existing concrete and flex enough with Florida’s heat swings, paired with a flexible sealant at the flue-to-crown joint. Some Orlando companies will smear on whatever caulk they have in the truck. That’s not how we do it.
Styles & brands we work with
Signs Your DuraFlex Crown Repair Is Failing
- Hairline cracks spreading like a web across the crown surface. This happens because the crown’s concrete expands and contracts differently than the flue tile it surrounds. In Orlando, where afternoon heat follows morning humidity, that stress cycle repeats daily, and the cracks slowly widen each season.
- Spalling, where small chunks of the crown’s surface flake off. When water soaks into the concrete and the temperature swings, the surface layer breaks away. You’ll find small concrete bits in the gutter below the chimney, or on the roof near the chase.
- White mineral stains (efflorescence) running down the brick below the crown. Water is passing through the crown and pulling minerals out of the concrete and mortar as it drips down. If you see white staining on the chimney’s exterior, the crown has already been leaking for a while.
- The crown pulling away from the flue tile, leaving a visible gap. Some Orlando homes still have original crowns poured forty or fifty years ago. The original mortar joint between crown and tile fails first, and once you can slide a quarter into that gap, water is getting into the chase or the flue cavity.
- Water in the firebox after heavy rain. This is the one that gets people to call. The smell of damp ash, or a small puddle at the base of the fireplace, means the crown has lost its ability to shed water. With a DuraFlex liner in place, the liner itself can still be fine, but water traveling outside the liner is silently soaking the chimney structure.
Replacement Cost & What’s Included
In the Orlando market, a full DuraFlex chimney crown repair installed typically runs $350 – $700. Most repairs fall between $425 and $550. What moves the number is the condition of the existing crown’s substrate, whether we’re resealing a structurally sound crown or rebuilding one that has lost more than a third of its surface, and accessibility on the roof.
Here’s what you get at that price when you book with us. We clean the crown surface down to sound concrete. We repair the cracks and fill any low spots that were holding water. We apply a professional-grade crown coat that’s built for Florida’s expansion cycles, with proper slope so water runs off, not toward the flue. We recaulk the joint between the flue tile and crown with a flexible sealant, because rigid mortar there is exactly what fails first in this climate. We take before-and-after photos and send them to you before we pack up.
The price is written, confirmed, and agreed before we start. Not a verbal estimate, not a range that balloons when we’re on the roof. And every crown repair we do in Orlando carries our 365-Day Done Right Promise: if the repair fails within a year, we come back and make it right at no charge. That part isn’t a promo, it’s how we’ve done business for over two decades.
See the difference
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After
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After
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AfterDIY or Call Us?
You can inspect the crown yourself from the ground with binoculars, looking for the cracking, spalling, and staining we described above. That’s genuinely useful, and we encourage it. What you shouldn’t do is get on a roof with a bucket of crown coat and try to reseal it yourself. Roof work near a chimney is dangerous, especially on Orlando homes where clay or concrete roof tile is slippery and the pitch can be steeper than it looks from the yard. A fall from even a single-story Florida ranch costs far more than a professional repair.
The other reason to call us: we can tell you whether the crown actually needs repair or whether what you’re seeing is cosmetic. Not every crack is a leak. We’ll get eyes on it, take photos, and show you what we see. Cory Mitchell, our owner and lead sweeper, has a habit of texting the photo and letting the homeowner decide rather than talking them into work they can’t see for themselves. That’s the standard. If your crown needs work, call (904) 822-8172 for a free estimate and we’ll get you booked with a live person, not a callback queue.
FAQs
A properly applied crown repair with professional-grade crown coat and a flexible flue joint typically lasts 10 to 15 years in Orlando, though many go longer when they were correctly sloped from the start. The original crowns on many Florida homes last 20 to 40 years before failure, so a good repair realistically buys you a decade or more. Florida’s heat and rain cycle is the main reason crowns fail faster here than in drier climates. Call (904) 822-8172 and we can tell you honestly whether your crown needs repair now or can wait another season.
Most crowns can be repaired rather than fully replaced, as long as the concrete base is still structurally sound. We grind out the cracks, fill them, and apply a crown coat that re-establishes the slope and seals the surface. Full removal and repour is only necessary when the crown has lost more than a third of its depth or has broken into large, loose sections. We’ll show you photos of the condition before you decide so you’re not guessing.
Most crown repairs take 2 to 4 hours on-site, and the material needs roughly 24 hours to fully cure before it’s weatherproof. We schedule the work when Orlando’s weather gives us a dry window, because crown coat doesn’t bond well in rain or standing water. Book by calling (904) 822-8172 and we’ll confirm the full visit window when you schedule, not a four-hour guess.
Yes, we stock crown repair materials on our trucks, along with the flexible sealants used at the flue-to-crown joint. We also carry parts and materials from HeatShield and Gelco for liner repairs, so if we find a secondary issue while we’re on the roof we can often address it the same day without a second trip. That’s convenient, not a grab for extra work: we’ll photograph the issue and give you a written price before doing anything beyond the crown.
Ready to Get Your Crown Repaired?
If you’ve got a DuraFlex system and a crown that’s showing cracks, water stains, or just reached the age where you don’t trust it, call us at (904) 822-8172. A live person answers, day or night. We’ll book you a tracked arrival window, give you a written price before any work starts, and send you photos of the work when it’s done. Crown repair in Orlando is seasonal work: the best time to fix it is before the summer rain season starts pulling water into your chase. The second best time is now.
Written by Cory Mitchell, Owner & Lead Chimney Sweep, Hadley Chimney Orlando at Hadley Chimney Orlando, serving Orlando and nearby areas.