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 Henderson Owner’s Guide
Olympia Chimney crown repair in Henderson typically runs $425 to $1,150 installed, depending on whether the crown gets a professional-grade sealant treatment or a full tear-out and recast. We keep Olympia Chimney-compatible crown materials on the truck, so most Henderson jobs are completed in a single visit, usually two to four hours. Most owners discover the problem the same way: water staining on the ceiling near the fireplace, crumbling mortar on the crown’s surface after a hard rain, or our favorite, a neighbor pointing at the roof asking what happened to the top of the chimney. The crown is the concrete slab at the very top of the chimney that sheds water away from the flue. When it cracks, water gets in.
Which Olympia Chimney Models This Applies To
Olympia Chimney supplies factory-built chimney systems under several product lines, and crown compatibility depends on the outside diameter of the chimney chase top or the masonry flue tile configuration. Here is the part most people do not know: Olympia Chimney does not manufacture a universal crown that fits every model. The crown must be formed or sized to the specific OD of your Olympia flue pipe and the chase top dimensions. For prefabricated fireplaces like the Olympia Ventis or Olympia Zero-Clearance lines, the crown is integrated into the chase top assembly, and we often match the replacement to the original chase pan dimensions rather than trying to retrofit a masonry-style crown. For masonry chimneys using Olympia flue liners, we form the crown on site using a poured concrete mix with the proper slope and drip edge. If you still have the installation manual or the metallic UL listing plate attached to the firebox, that tells us the exact model and pipe diameter. Without it, we measure the outside diameter of the flue pipe and the inside dimensions of the chase, which gives us the correct crown spec.
OEM versus aftermarket matters less here than it does for internal components. An Olympia-branded replacement chase top is the cleanest path when the original is rusted through, but a properly formed stainless or galvanized crown and chase pan from a trade supplier like Copperfield will do the same job, often for $150 to $250 less. We are an independent service provider, not an Olympia Chimney dealer or affiliate, which means we spec the right material for the application rather than pushing a brand label. That said, we do stock and install Olympia Chimney components when the job calls for them.
Styles & brands we work with





Signs Your Olympia Chimney Crown Repair Is Failing
- Spalling or chipped concrete on the crown surface. Henderson’s freeze-thaw cycles are mild compared to northern Nevada, but the summer heat does real damage. Concrete expands and contracts daily, and after 10 to 15 years, the surface starts shedding small chunks. That exposed aggregate is the first place water finds a path down.
- Water staining on the ceiling or wall near the fireplace. This is the symptom that finally gets most Henderson homeowners to call. By the time water shows up inside the house, the crown has been compromised for at least a full rainy season. The water travels down the outside of the flue pipe or through the masonry, bypassing the firebox entirely.
- White mineral streaks on the brick below the crown. Efflorescence, the white chalky deposit, is dissolved salt being pushed out of the masonry by migrating water. It is not just cosmetic. It tells you water is moving through the chimney structure, and the crown is the primary entry point.
- Rusted chase top or visible rust trails on the siding near a prefab chimney. On Olympia Ventis and similar factory-built systems, the chase top is sheet metal, not poured concrete. Rust holes or swollen seams mean the crown’s drainage function is gone. Water pools instead of running off.
- Cracked caulking or separated flashing where the crown meets the flue tile. The joint between the crown and the flue liner is sealed with a flexible sealant. Once that sealant hardens and pulls away, capillary action draws water into that gap. This is the repair we perform most often on Henderson chimneys that are otherwise in decent shape.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
For Henderson homes, a crown repair with a professional-grade waterproof sealant treatment typically runs $425 to $650. A full crown recast with exact slope and drip edge, which is what we recommend when more than a third of the crown is compromised, runs $750 to $1,150 depending on the crown’s footprint and the flue configuration. Every quote includes the same line items: surface preparation and removal of loose material, the crown material itself (either a polymer-modified sealant system or poured concrete with bonding agent), the flexible sealant at the flue joint, and full cleanup. The price you approve before we start is the price on the invoice. The repair carries our 365-Day Done Right Promise in writing. If the crown fails within one full year, we return at no charge. No arguing, no re-quoting.
DIY or Call Us?
This is not a job we recommend for a ladder, a bucket of Quikrete, and a Saturday afternoon. The crown is a structural water-shedding component. If the slope is wrong, if the mix is too wet, if the drip edge is missing, the repair fails silently and water keeps penetrating. That said, there is real value in a homeowner inspecting from the ground with binoculars: look for cracks wider than a quarter inch, missing sealant at the flue joint, and rust trails on prefab systems. That tells you whether you need a recast or just a reseal. If you see any of those signs on a Henderson roof, call us at (775) 375-4267. We will put a camera on the crown, show you the photos, and quote what the job actually needs, not what our monthly sales goal needs.
FAQs
A properly formed concrete crown in Henderson’s climate lasts 20 to 30 years before it needs significant work, while the sealant at the flue joint needs refreshing roughly every 5 to 7 years. The factor that shortens that lifespan faster than anything is repeated water intrusion through an unsealed joint, which is why we inspect the crown on every chimney sweep visit. Call (775) 375-4267 if you want eyes on your crown this season.
Yes, in most Henderson homes the crown can be repaired rather than recast, as long as the remaining concrete is structurally sound and the slope can still move water to the edges. We use professional-grade crack fillers and a waterproof membrane, then reseal the flue joint, and that repair typically buys 8 to 12 more years before a recast is necessary. The call on repair versus recast comes down to what the camera shows, and you will see those photos before you approve a dollar.
A straightforward Olympia Chimney crown sealant repair takes about two hours on site, and a full recast takes three to four hours plus 24 hours of cure time before any rain exposure. Most Henderson jobs are done in a single visit with no follow-up needed. The guarantee covers the work for a full year regardless of which repair your chimney needs.
Yes, our trucks carry the crown sealants, bonding agents, and concrete mixes we need for most Olympia Chimney crown jobs, along with DuraFlex, HeatShield, and Gelco product lines for the broader flue and liner work we do. If your job needs a custom chase top or a specific Olympia-branded replacement part, we order it and schedule the install in one follow-up visit. Hank Delano keeps the trucks inventoried so a Henderson call does not turn into a two-week wait. Call (775) 375-4267 for a free estimate and we will tell you exactly what is on hand.
Written by Hank Delano, Owner, Flint Chimney Co Henderson at Flint Chimney Co Henderson, serving Henderson and nearby areas.