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 Chimney Cap & Crown in Downers Grove: What to Know First
We provide independent Olympia Chimney chimney cap & crown service in Downers Grove, with most cap replacements and crown repairs completed in a single visit after our NFPA 211 Level 2 inspection. A written price and scope are delivered before any work starts, and every job carries our 365-Day Done Right Promise under the Haven Standard. Most Downers Grove homeowners with Olympia Chimney caps or crowns are looking at $280-$890 depending on whether we’re sealing a hairline crack or replacing a multi-flue cap assembly. Call (331) 253-4980 to book - estimates are free, and a live person answers the phone.
This page is for homeowners who already have an Olympia Chimney product on their flue and need to know whether the cap can be repaired, whether the crown needs coating or rebuild, and what an honest price looks like in Downers Grove. Corrine Halstead and our crew have worked on Olympia Chimney caps throughout the older neighborhoods near Main Street and the newer construction west of Fairview Avenue, so we know what the local freeze-thaw cycle does to these components.
How Olympia Chimney Products Fail - and How We Fix Them
- Olympia Chimney stainless single-flue caps (SC series): The mesh on SC-series caps in Downers Grove tends to clog with cottonwood seed and maple helicopters each May and June, then corrodes from the inside out when trapped moisture freezes. We see this on homes near Lyman Woods and the Prairie Path corridor where tree canopy is heavy. Our fix: pull the cap, assess whether the mesh is salvageable, and replace with either an OEM SC cap or a Gelco equivalent with wider mesh spacing if debris loading is chronic.
- Olympia Chimney galvanized multi-flue caps (GC and GCC series): The galvanized coating on GC-series caps fails at the weld seams first, typically after 6-10 winters in Downers Grove’s salt-laden freeze-thaw environment. Once rust blooms at the seam, water tracks into the crown below and accelerates spalling. We replace with a stainless multi-flue cap from Olympia Chimney’s current line or a Famco unit if the flue spacing is non-standard, then seal the crown with HeatShield CrownCoat if the concrete is still structurally sound.
- Olympia Chimney top-mount dampers with integrated caps: The cable housing on integrated damper-cap units seizes when creosote drips from the flue collar and gums the pivot. In Downers Grove, this happens most often on 1980s-1990s masonry fireplaces that burn green hardwood. We free the mechanism if possible, but if the cast-aluminum frame is cracked from thermal cycling, we replace the entire assembly and recommend switching to a separate cap and throat damper for serviceability.
- Olympia Chimney crown wash on pre-fab chimney systems: The factory crown wash on Olympia Chimney’s factory-built chimney packages is thin, typically 3/4-inch at the edge, and it loses bond with the chase cover after the third or fourth winter. Water gets behind it, rusts the chase cover, and stains the siding. We grind off the failed wash, apply a bonding agent, and rebuild with a proper 2-inch minimum slope using HeatShield CrownSeal or a poured concrete crown if the chase framing allows.
- Olympia Chimney wind-directional caps (WD series): The rotating collar on WD-series caps seizes when the bronze bushing wears, which happens faster in Downers Grove because wind patterns off the Great Plains load the bearing with dust and road salt grit. A seized WD cap becomes a fixed obstruction that can back-puff smoke into the house. We replace the bushing if the housing is intact, or swap to a Vacu-Stack or Gelco wind-directional if the owner wants to stay with a rotating design.
Our Olympia Chimney Chimney Cap & Crown Process

- 1
Call and schedule. A live person answers, checks availability, and notes your Olympia Chimney model if you know it. We text you when your technician is en route.
- 2
NFPA 211 Level 2 inspection with camera. We run a camera down the flue to check for damage that the cap or crown failure may have caused - water staining on the flue liner, deteriorated mortar joints, or rust on a metal chimney. Photos are recorded under Haven Standard Clause 4.
- 3
Diagnose and quote in writing. Corrine or your assigned technician shows you the camera footage, names the problem, and delivers a written price and scope before any work begins. The camera does not lie, and neither does the written price.
- 4
Parts decision: OEM or quality aftermarket. We stock common Olympia Chimney caps and crowns, and we source through our Haven buying network from DuraFlex, HeatShield, Gelco, and Famco if an aftermarket part saves money without sacrificing fit or warranty coverage. We explain the trade-off and let you choose.
- 5
Repair or replacement with documentation. The work is performed, the flue is tested for draft and water intrusion, and you receive a photo record of the completed job plus a written warranty.
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365-Day Done Right Promise. If anything about the cap or crown isn’t right, we make it right. Clause 1 of the Haven Standard requires the written price; Clause 4 requires the documented record. Both are in your hands before we leave.
Before
AfterWhat Olympia Chimney Chimney Cap & Crown Costs in Downers Grove
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Crown seal / small crack repair (HeatShield CrownCoat) | $280-$450 | Crown square footage, number of cracks, access height |
| Single-flue cap replacement (Olympia Chimney SC series or equivalent) | $340-$580 | Flue size, mesh type, stainless vs. galvanized |
| Multi-flue cap replacement (Olympia Chimney GC/GCC or Famco equivalent) | $520-$890 | Flue count, chase dimensions, custom mounting |
| Crown rebuild (poured concrete, 2-inch minimum slope) | $680-$1,400 | Crown size, chase height, need for new chase cover |
| Integrated damper-cap replacement | $740-$1,200 | Flue diameter, cable run length, throat access |
These are real 2024-2025 price ranges for Downers Grove, not teaser rates. Every estimate is free, and we honor our Free Second Opinion on any competitor’s written quote. Call (331) 253-4980 for your exact number.
Why Downers Grove Homeowners Call Emberly Chimney Cleaners Downers Grove for Olympia Chimney Work

We’ve inspected and cleaned more than 38,000 chimneys since 2009, and a significant share of the cap and crown work in Downers Grove involves Olympia Chimney products - not because they’re poorly made, but because they’re common on homes built during the 1990s and 2000s construction waves that hit DuPage County. Our technicians are background-checked, uniformed, and carry license information on every page of their documentation. We know the difference between an SC-series and a GCC-series cap without squinting at a parts catalog, and we stock both OEM Olympia Chimney and quality aftermarket options from Gelco and Famco so you’re not waiting on a warehouse shipment.
The Haven Standard governs everything we do. Clause 1: written price before work starts. Clause 4: documented photo record on every visit. The 365-Day Done Right Promise covers every cap and crown job. And if you already have a written estimate from another company, we’ll review it for free.
FAQs
No - routine maintenance, cap replacement, and crown repair do not void Olympia Chimney’s product warranty, provided the work is performed by a qualified technician using compatible parts. As an independent Olympia Chimney service provider, we use OEM or equivalent components that maintain warranty integrity, and we document everything in writing. Call (331) 253-4980 if you need warranty paperwork for your records.
Most single-flue cap replacements are completed in 90 minutes to two hours, including inspection, removal, and testing. Multi-flue caps or jobs requiring crown repair add time. We book by the job, not the hour, so the price on your written estimate is the price you pay. Call (331) 253-4980 to schedule.
Yes - we cross-reference discontinued Olympia Chimney models against current OEM stock and aftermarket equivalents from Gelco, Famco, and Copperfield. If the exact cap is unavailable, we fabricate a mounting solution or recommend a compatible replacement with the same or better mesh protection and draft performance. We show you both options in writing before ordering.
Hairline cracks without underlying concrete degradation can be sealed with HeatShield CrownCoat or CrownSeal, which carries a 10-year warranty when we apply it. If the crown is spalling, delaminating, or less than 2 inches thick at the edge, we recommend a poured rebuild. The camera inspection shows us which category you’re in, and we quote both paths when the choice is close. Call (331) 253-4980 for a free evaluation.
We recommend an NFPA 211 Level 2 inspection every year you use the fireplace, and specifically after any cap impact event - a branch strike, ice dam, or wind gust that dislodges the cap. The crown should be visually checked each fall before burning season; in Downers Grove, the freeze-thaw cycle between November and March is when small cracks become big problems. Call (331) 253-4980 to book your inspection.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners Downers Grove at Emberly Chimney Cleaners Downers Grove, serving Downers Grove and nearby areas.





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