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.
Olympia Chimney Crown Repair: The Miami Owner’s Guide
If you’ve got an Olympia Chimney system and the concrete crown on top is cracking, spalling, or letting water through, we can match and install the correct repair in Miami, typically within a few days of your call. An installed crown repair on an Olympia Chimney fireplace usually runs $650 to $1,400 in Miami, depending on crown condition, flue tile count, and whether we’re rebuilding the crown or applying a full resurfacing system. Most owners discover the failure after a heavy Miami rain, when they see water staining on the ceiling near the fireplace or white mineral deposits trailing down the brick face from the crown line.
Which Olympia Chimney Models This Applies To
Olympia Chimney products include prefabricated fireplace units, stainless steel chimney systems, and masonry crowns paired with their Class A chimney pipe. The crown work we do falls into two camps: factory crowns built into Olympia’s prefab units and field-poured concrete crowns on masonry chimneys where an Olympia Chimney pipe runs up the flue. The key check is the crown’s outside dimensions and the number of flue tiles or pipe penetrations it seals. We measure the crown overhang (the lip should extend at least 2 inches past the brick face), the slope, and whether the mix has pulled away from the flue collar.
OEM versus aftermarket matters here less than it does for something like an Olympia air-cooled chimney section. The crown itself isn’t typically a serial-numbered part you order from an Olympia catalog. What does matter is the crown-to-chimney seal and how the crown pours around Olympia’s pipe termination. Our techs specify a flexible sealant bond-breaker and polymer-modified concrete mix designed for high-UV, high-moisture climates. That’s the Miami variable. A crown mixed for Michigan freeze-thaw won’t have the same expansion profile in our wet season. We stock Olympia pipe-compatible crown forms, flue collars, and matching termination caps on the truck, alongside DuraFlex, HeatShield, and Gelco products for related repairs.
Styles & brands we work with





Signs Your Olympia Chimney Crown Repair Is Failing
- Hairline cracks spidering across the crown surface. This is the earliest stage. Miami’s daily thermal swings expand and contract the concrete, and the original pour often lacked the right curing time before the first hard storm. Water seeps in, sits, and accelerates the crack cycle.
- White mineral staining down the brick face. That’s efflorescence. Water has already moved through the crown and is leaching salts out of the masonry. By the time you see it, the crown has been passing water for at least one full rainy season.
- Chunks of concrete missing along the crown edge. We call this spalling, and it’s most common on south-facing crowns in Miami where afternoon sun beats hardest. The concrete oxidizes, expands, and pops off in pieces.
- Water in the firebox after a storm. If the crown is gone enough to let standing water reach the firebox floor, the chimney system is taking damage in five places at once: crown, flue liner, damper, smoke shelf, and firebrick. This is a stop-and-repair situation, not a wait-and-see one.
- Rust staining around the Olympia Chimney pipe where it exits the crown. The metal collar is rusting, which means the crown-pipe joint has failed and storm water is running directly down the outside of the pipe, which accelerates corrosion and introduces moisture to the chase.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Miami, you can expect the following price ranges for Olympia Chimney crown work, installed by our crew:
- Full crown rebuild (tear-out and re-pour): $850 to $1,400, depending on crown size and access.
- Resurfacing with a polymer-modified crown coat (crown structurally sound, minor cracks): $650 to $950, including prep, bonding agent, and two-coat application.
- Crown repair with flue collar replacement for an Olympia Chimney pipe run: add $150 to $300 in parts and fabrication.
Every crown job includes the written material and labor cost before we start, fresh crown mix proper crown overhang and slope, and re-sealing around the flue or pipe termination. The work is covered under our 365-Day Done Right Promise, in writing. If a covered repair fails within one year, we come back and make it right at no charge.
DIY or Call Us?
The honest answer is that crown inspection is something you can do safely from the ground with binoculars. Walk the perimeter of the house, look for cracking, staining, missing chunks, or rust at the pipe-collar joint. What you should not do is get on a ladder and start patching. Crown repair done wrong creates a false seal and traps water inside the masonry, which accelerates the damage. The crown also sits at the top of a working chimney, meaning you’re working at height, often on uneven roof pitch. In Miami, a wet tile roof after a storm is not a surface anyone should be on without proper training. We do this from roof access and chimney stands with the right tie-offs, which is a trained-professional job. If you spot something, call us at (786) 305-7861 and tell us what you saw. Hank’s line on this is simple: “Tell me what you saw, I’ll tell you what it costs.”
FAQs
A properly poured and cured crown in Miami should hold for 15 to 20 years before showing significant wear. The wet season, heavy UV exposure, and the constant thermal cycles mean a Miami crown lives about 5 to 8 years shorter than the same pour in a drier, cooler climate. Call (786) 305-7861 if yours is showing cracks before the 10-year mark; we’ll tell you what we see and what it costs to sort out.
If the cracks are hairline and the crown is still structurally intact, a resurfacing coat usually solves the problem. If the concrete is spalling, sections are missing, or the crown has pulled away from the flue or pipe, a full rebuild is the repair that actually holds. Call (786) 305-7861 for a straight answer and a written price before any work starts.
Most full crown rebuilds on Olympia Chimney systems in Miami are complete in one day, with a return visit the next morning to remove forms and check the pour. Resurfacing jobs are typically done in under half a day. Call (786) 305-7861 and we’ll set a firm window, not a four-hour guess.
Yes. We keep crown forms, flue collars, polymer-modified mixes, and termination caps sized for Olympia Chimney pipe runs on the truck, along with DuraFlex, HeatShield, and Gelco products for related chimney repairs. None of it gets recommended without camera evidence showing you what’s actually failing. Hank Delano and our crew, Flint Chimney Co Miami, have been serving Miami for years, from Coral Gables to the older masonry fireplaces off Brickell, and we approach every crown job the same way: written price first, repair second, and a one-year guarantee in your hands before we pack up.
Ready to address that crown before the next Miami storm hits? Call (786) 305-7861 and we’ll schedule a straight-up inspection and get you a written estimate. We are an independent chimney service company and are not affiliated with Olympia Chimney, and that’s exactly how you want it: we’ll tell you what your chimney needs without any brand bias, just the facts and a price.
Written by Hank Delano, Owner, Flint Chimney Co Miami at Flint Chimney Co Miami, serving Miami and nearby areas.