Level 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.
Olympia Chimney Crown Repair: The Coventry Owner’s Guide
We stock and install Olympia Chimney-compatible crown repair materials, and most crown rebuilds in Coventry run between $450 and $900 installed, depending on how much of the old crown is salvageable and whether we need to do any underlying masonry work first. We carry the Olympia Chimney crown coat system on the truck, along with the mesh and bonding agents that go with it, so we’re usually able to complete the job the same day we come out. Most Coventry homeowners discover their crown has failed by noticing water in the firebox after a hard rain, or a slow white stain working its way down the chimney face just below the top. Sometimes it’s flaking concrete sliding into the gutter, or a rust-colored drip line right at the roofline. The crown is the concrete slab that caps the top of the chimney, and when it starts to go, every freeze-thaw cycle we get from late October through March works the crack a little wider.
Which Olympia Chimney Models This Applies To
Olympia Chimney makes a few different crown profiles, and the repair approach changes depending on what you have. Most residential installs around Coventry use their standard poured-in-place crown technology, which is a steel-reinforced concrete cap that gets poured over the flue tile. You’ll typically find it on their prefab and masonry chimney systems from the mid-1990s on. If your chimney has a metal nameplate or a stamp near the cleanout door, that’s the easiest way to confirm. No plate? Measure the outside dimensions of the crown overhang. Olympia crowns sit between 2 and 2½ inches thick at the edge and carry at least a 2-inch overhang past the brick line on all four sides. That overhang matters because it’s the first thing to spall off when water gets in. One compatibility gotcha we see often: if you have an Olympia system paired with a third-party chase cover or a fan-assisted flue, the crown profile is slightly different, and off-the-shelf repair kits don’t sit right. In those cases we fabricate the crown form on site to match what’s there. For the Crown Coat system itself, Olympia’s material is a polymer-modified cement that adheres to both old concrete and masonry, which makes it the right call for resurfacing a crown that’s still structurally sound underneath. We also work with Gelco, DuraFlex, and HeatShield products when the job calls for something different, but for Olympia-brand chimneys, we start with the system that was designed for them. Top Hat Chimney is an independent service provider, not affiliated with Olympia Chimney, so our recommendation is based on what we see on your roof, not a brand deal.
Signs Your Olympia Chimney Crown Repair Is Failing
- Hairline cracks running across the crown surface. This is the earliest stage, and the one that’s cheapest to fix. What starts as a 1/16-inch crack in August is a ¼-inch gap by March because water seeps in, freezes, and expands. That’s the freeze-thaw cycle we get all winter in Coventry.
- Flaking or spalling along the crown’s outer edge. The edge of the crown takes the most weather exposure, so it erodes first. Once the overhang is gone, water runs straight down the chimney face instead of dripping onto the roof. You’ll see the brick face below the crown start to darken and hold moisture.
- White mineral streaks below the crown line. This is called efflorescence, and it’s the visual proof that water is soaking into the masonry and carrying salts out with it. If you see white staining on the chimney interior or exterior, your crown isn’t doing its job anymore.
- Damp drywall or musty smell near the chimney chase. When a crown fails enough, water works its way down through the stack and into the framing. By the time you smell it, the leak has been active for a while, and you’re likely looking at crown repair plus interior cleanup.
- Pieces of concrete in the gutter or on the roof. This one’s obvious but easy to miss because people don’t spend a lot of time looking at their gutters. If you find gritty concrete bits after a storm, part of your crown has already let go.
Replacement Cost & What’s Included
In Coventry, a full Olympia Chimney crown rebuild with the Crown Coat system typically lands between $450 and $900. Here’s how that breaks down:
- Full teardown and repour: $600-$900, including form work, rebar or mesh, and the polymer mix. This is for crowns that are cracked through, eroded, or missing chunks.
- Resurfacing with Crown Coat: $450-$650, for crowns that are still structurally intact but showing surface cracks and early spalling.
- What’s always included: the initial camera inspection, prep work, sealing around the flue tile, and a photo report so you can see the before and after with your own eyes.
Every crown job comes with a written 90-Day Done Right Promise. If it’s not holding up, one call brings us back at no additional cost. We give you the price before any work starts, and the number on the quote is the number on the invoice. We don’t play the game of quoting low on the phone and adding charges at the door. And since we’re local to Coventry, there’s no trip charge when you’re inside our service county.
DIY or Call Us?
You can safely identify most crown problems from the ground with a pair of binoculars, or from an upstairs window if you’ve got a good angle. Look for the cracks, the staining, the missing edges. You can also go into the attic on a wet day with a flashlight and check for water penetration around the chimney chase. That’s useful information to have before you call anyone. What you don’t want to do is climb up there with a bucket of patching compound. Crown repair is roof work, it’s concrete work, and it’s done right only when the surface is properly prepped, the weather cooperates, and the material has time to cure. If you patch a crown from the top of a ladder in two hours, you’ll be patching it again in two years, and you’ll have paid for the same fix twice. We do crown repair as a profession, not a weekend project. If you’re not sure whether yours needs attention, call (860) 743-7732 and we’ll tell you straight. If it doesn’t need doing, we’ll tell you that too.
FAQs
A properly poured and sealed crown in Coventry’s climate lasts 20 to 30 years before it needs serious attention, though the sealant should be checked every 5 to 7 years. The freeze-thaw cycles we get are hard on concrete, but a crown with a good overhang and a solid seal will outlast most of the other materials on the chimney. Call (860) 743-7732 for an inspection and we’ll tell you exactly where yours stands.
It depends on how much of the structure is still sound. Surface cracks and minor spalling can usually be addressed with a Crown Coat resurfacing. If the crown has lost its overhang, crumbled in sections, or the cracks go all the way through, you’re better off with a full repour. We’ll show you camera footage of what we find before we recommend anything.
Most Olympia Chimney crown resurfacing jobs are done in a single day, including prep and cleanup. A full repour takes two visits because the concrete needs time to cure before we apply the final sealant. We’ll give you a clear timeline before we start.
Yes. We stock the Olympia Chimney Crown Coat system and the mesh, bonding agents, and sealants that go with it, so we usually don’t have to order anything in for a standard Coventry job. If your crown needs a custom form, we build it on site. For chimneys tied to other systems, we also carry parts for DuraFlex, HeatShield, and Gelco.
If your Olympia crown is cracking, flaking, or letting water into the house, call (860) 743-7732. We’ll come out, look at it, and give you an honest answer about what it needs and what it doesn’t. No pressure, no upsell, no number that changes at the door.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Coventry and nearby areas.





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