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 Westminster Owner’s Guide
Olympia Chimney crown repair in Westminster typically runs $340-$680 installed, depending on whether we’re sealing hairline cracks or pouring a new Portland cement crown over a deteriorated base. We stock Olympia Chimney-compatible crown materials on our trucks and can usually complete the repair in a single visit once we’ve done a camera inspection to confirm the damage hasn’t reached the flue liner below. Most Westminster homeowners discover the problem during their annual sweep, or after spotting water stains on the ceiling near the fireplace during our wet March and April months.
Which Olympia Chimney Models This Applies To
Olympia Chimney manufactures several flue liner and chimney component lines, and their crown assemblies vary by the outer dimension of the flue tile or stainless liner they protect. The most common we see in Carroll County are the Olympia 8″ x 8″ and 8″ x 12″ clay flue tile systems, along with their 6″ and 8″ round stainless liner tops. The critical measurement isn’t the flue size itself - it’s the outside dimension of the flue tile or the chase cover opening, which determines the crown overhang and drip edge.
We carry both OEM Olympia Chimney crown wash mixes and professional-grade Portland cement formulations from Copperfield that match or exceed original specs. For older Olympia systems installed in the 1990s and early 2000s, the original crown was often a thin slurry coat rather than a proper 2-inch minimum pour. In those cases, we recommend a full rebuild with reinforced concrete rather than another skim coat that’ll crack in two winters. Hearthstone Chimney Co. is an independent service provider - we’re not affiliated with Olympia Chimney - so we source the material that actually solves the problem, not just the part number.
Signs Your Olympia Chimney Crown Repair Is Failing
- Hairline cracks spreading across the crown surface. These start from thermal cycling - our Westminster temperature swings from single digits to 50°F in a January week cause the concrete to expand and contract. Water seeps in, freezes, and widens the crack until the crown spalls.
- Water pooling on the crown instead of running off. A properly sloped crown sheds water to the drip edge. When the slope settles or was never built right, water sits and finds its way down the flue or into the chase walls.
- Chunks of concrete missing from the crown edge. This is past the point of sealant repair. The freeze-thaw damage has compromised the structural integrity, and the crown is no longer protecting the masonry below.
- Damp or stained drywall near the chimney breast inside. By the time you see this inside, water has already gotten past the crown, through the flashing or chase cover, and into the framing. The crown was likely leaking for two or three seasons before it showed.
- Efflorescence (white powder) on exterior brick below the crown. This means water is moving through the masonry, dissolving salts, and depositing them on the surface. The crown’s failure is letting water into the chimney structure itself.
Replacement Cost & What’s Included
| Repair Type | Typical Range in Westminster | What’s Included |
|---|---|---|
| Crown sealant (hairline cracks only) | $340-$450 | Wire brush prep, flexible crown coat application, 5-year material warranty |
| Partial crown rebuild (spalled edges) | $480-$620 | Form and pour new concrete to existing base, reinforcement mesh, sloped for drainage |
| Full crown replacement | $580-$680 | Remove failed crown, inspect flue tile condition, pour new 2″ minimum reinforced crown with proper overhang |
What drives the range: accessibility (steep roof pitch, chimney height), whether we need to remove a damaged chase cover to access the crown, and what the camera inspection reveals about the flue tile beneath. We don’t guess - the Level-2 camera inspection with photos you can see is included in every crown evaluation. The number on the estimate is the number on the invoice. All crown work carries our 90-Day Done Right Promise in writing, no arguing.
DIY or Call Us?
There’s a safe middle ground here. A homeowner can check the crown from the ground with binoculars for obvious cracks or missing chunks, and can verify water stains inside aren’t getting worse after rain. What you cannot safely do is work on the crown itself. Chimney crowns sit at height, often on steep-pitched roofs, and the repair requires working with wet concrete on a sloped surface while the flue below is open.
We’ve also seen DIY sealant jobs trap moisture underneath instead of shedding it, accelerating the damage. And if the flue tile is cracked beneath a failing crown - common after years of water intrusion - sealing the surface hides a fire and carbon monoxide hazard. That’s why we camera-inspect every crown before quoting repair. If you’d rather know for certain, call us at (301) 215-3355. We’ll show you what we find and give you a straight price.
FAQs
A properly poured reinforced concrete crown with correct slope and overhang lasts 20-30 years in Carroll County’s climate. The thin original slurry coats we see on many older Olympia systems often fail in 8-12 years due to our freeze-thaw cycles. Call (301) 215-3355 and we’ll tell you exactly what you’re working with - estimates are free.
Hairline cracks with no spalling and solid underlying concrete can be sealed with a flexible crown coat. Once the surface is crumbling, flaking, or the crown has lost its slope, replacement is the only lasting fix. We document the condition with camera photos so you can see the difference yourself.
Most crown repairs are completed in a single visit of 2-4 hours. Full replacements require form setup, pour, and cure time - we typically return the next day to strip forms and verify the slope. Our technicians arrive background-checked and uniformed, and we call ahead so you’re not waiting.
We carry Portland cement crown mixes, bonding agents, and reinforcement mesh on every service vehicle, along with sealants compatible with Olympia Chimney flue tile and liner systems. For unusual chase dimensions, we measure on-site and form custom. Most Westminster jobs need no second trip for materials.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Westminster and nearby areas.





Before
After
Before
After
Before
After