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 Owings Mills: What to Know First
As an independent Olympia Chimney service provider, we install, repair, and replace chimney caps and crowns on Olympia Chimney systems throughout Owings Mills. Most Olympia Chimney cap and crown jobs run between $280 and $850 depending on whether we’re fitting a standard single-flue cap, rebuilding a poured concrete crown, or addressing multi-flue setups common on the larger colonials near McDonogh Road. We carry the line-item pricing in our heads, not hidden in a binder, and we’ll tell you where your job lands before we book it.
This page is for Olympia Chimney owners in Owings Mills who’ve noticed rust streaks on the brick, water pooling in the firebox after a hard rain, or a cap that’s come loose in last winter’s wind. Maybe your sweep mentioned crown cracking, or you pulled a piece of mortar from the hearth. Whatever you’re seeing, call us at (443) 998-2617. Russell Haines and our crew have worked on Olympia Chimney products across the Baltimore area for well over a decade, and we’ll tell you straight whether the fix is a cap swap, a crown coating, or something more involved.
How Olympia Chimney Products Fail - and How We Fix Them
- Olympia Chimney stainless single-flue caps: fastener fatigue in coastal-adjacent air. The 304-grade stainless caps hold up well inland, but Owings Mills sits close enough to the Chesapeake that salt-laden spring storms accelerate corrosion at the screw points. We see this on the OCS series caps after six to eight years, not the twelve the brochure suggests. Our fix: we pull the compromised fasteners, inspect the flue tile for spalling underneath, and reinstall with 316-grade hardware and a bead of high-temp silicone that won’t turn brittle.
- Olympia Chimney multi-flue caps: sagging lid from undersized support brackets. The OCM multi-flue line ships with standard-angle brackets that work fine on a 12/12 pitch, but many Owings Mills split-levels and ranchers have lower slopes where snow load sits heavy. The lid bows, the mesh pulls from its frame, and suddenly you’ve got squirrels and rain getting friendly with your flues. We fabricate a reinforced bracket set or source a heavier-gauge aftermarket lid that matches the Olympia Chimney base dimensions without voiding the existing flue warranty.
- Olympia Chimney gelcoated caps: UV chalking and mesh embrittlement. The OCG series looks sharp when new, but the Baltimore County sun angle and our freeze-thaw cycles turn that glossy finish chalky in four to five years. The mesh gets brittle and cracks at the fold points. We don’t just paint over it. We strip the old cap, evaluate whether the flue structure underneath has taken moisture damage, and fit a replacement that uses the same mounting footprint so you’re not drilling new holes in sound crown.
- Poured concrete crowns on Olympia Chimney-equipped systems: thermal shock cracking. Here’s the Owings Mills-specific detail most manufacturers won’t tell you: our clay-heavy soil shifts with seasonal moisture, and that movement transmits to the crown through the chimney stack. Olympia Chimney caps can’t compensate for a crown that’s dropped an eighth of an inch and opened a hairline crack. We grind the crack, seal with CrownSeal or a custom mortar match, and verify with a level that the cap will seat flat. If the crown’s too far gone, we pour new with a proper drip edge and slope.
- Olympia Chimney chase covers on prefab systems: corner rust-through at the drip edge. The factory chase covers on older Olympia Chimney prefab units use a folded-corner design that traps condensation. In the shaded lots common off Garrison Forest Road, that moisture never fully dries. We see pinholes at the corners first, then staining on the siding below. Our fix is a replacement chase cover in 24-gauge stainless with welded corners and a deeper drip edge, or we can transition to a proper masonry crown and cap if the chase framing is sound enough to support it.
Our Olympia Chimney Chimney Cap & Crown Process
- 1
Call and describe what you’re seeing. Our phones are answered by a live person 24 hours a day, 7 days a week. We’ll ask about the cap model if you know it, the age of the system, and whether you’ve had water intrusion or animal activity.
- 2
Level-2 camera inspection on arrival. Our technician runs a camera down the flue before touching the cap or crown. We document the flue tile condition, any moisture staining, and whether the damage is cap-level or extends to the smoke chamber. You see the photos. We give you a plain-English verdict.
- 3
Parts decision: OEM Olympia Chimney or quality aftermarket. If your cap is a current OCS or OCM series, we often stock the exact Olympia Chimney replacement. For discontinued lines or chase covers, we source from Gelco or Famco with matching dimensions and equivalent or better gauge. We explain the trade-off and the price difference before ordering.
- 4
The repair, done in a single visit when possible. Most cap replacements and crown coatings we complete in one trip. Crown rebuilds or custom fabrications may need a return, but we tell you that upfront. No surprises on the bill.
- 5
Post-repair verification and documentation. We run the camera again to confirm no debris fell during the work, test draft with a manometer on the cap if it’s a vented model, and photo-document the finished crown slope and cap seating. The 90-Day Done Right Promise goes in writing before we leave.
- 6
Cleanup and scheduling the next sweep. We haul away the old cap and any crown debris. If your system is due for its NFPA-211 inspection, we’ll note it on the paperwork and you can book then or call when convenient.
What Olympia Chimney Chimney Cap & Crown Costs in Owings Mills
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Olympia Chimney single-flue cap replacement | $280 - $450 | Flue tile condition, height of roof, stainless vs. gelcoat |
| Olympia Chimney multi-flue cap replacement | $480 - $720 | Custom sizing, reinforced bracket needs, mesh gauge |
| Crown coating (sound structure) | $340 - $580 | Crown square footage, crack depth, number of flues |
| Crown rebuild (poured concrete) | $680 - $1,200 | Access difficulty, forming complexity, drip edge detail |
| Chase cover replacement (prefab systems) | $520 - $890 | Stainless gauge, welded vs. folded corners, flue collar count |
Steep roofs, multiple flues, or concealed damage found during inspection can push toward the higher end. We don’t guess at the number over the phone and then change it on arrival. The estimate we give after inspection is the number on the invoice. Call (443) 998-2617 for a free estimate - we’ll come look, show you what we find, and tell you where your job lands in these ranges.
Why Owings Mills Homeowners Call Hearthstone Chimney Co. for Olympia Chimney Work
We’ve been serving this area for over 42 years, and we plan to be here in thirty more. That changes how you treat a customer. The 90-Day Done Right Promise isn’t a marketing line - it’s in writing, with no arguing, governed by our K.E.Y.S. code: Krafted right, Every time, Your home first, Standing behind it. If it’s not right, we come back.
Our technicians are background-checked, uniformed, and trained on Olympia Chimney’s product line as well as DuraFlex, HeatShield, and Gelco systems. When an Olympia Chimney part is back-ordered or discontinued, we have the cross-reference knowledge to source quality alternatives that fit and function without compromising safety. Most jobs complete in a single visit. The phone is answered by a live person, every hour of every day.
Russell Haines puts it this way: “Tell me what you’re seeing, and I’ll tell you what it actually means.” No dressing it up, no selling you what you don’t need.
FAQs
No - installing a replacement cap or repairing a crown does not void the original manufacturer’s warranty on the flue or fireplace unit, provided the work is done to code and uses compatible parts. We document everything and can provide that documentation if you ever need it. Call (443) 998-2617 if you have questions about your specific warranty terms.
Most single-flue cap replacements take 45 minutes to 90 minutes on site. Multi-flue caps or jobs requiring crown repair first may run two to three hours. We complete most jobs in a single visit. We’ll give you a time estimate when we book, and we’ll be there when we say.
Yes - we cross-reference the original Olympia Chimney dimensions against current Gelco, Famco, and Copperfield inventory, and we can fabricate custom solutions when needed. The mounting footprint and mesh specification are what matter for proper draft and animal exclusion, not the logo on the box.
If the crown has hairline cracking but sound structural integrity, a professional coating often suffices. If it’s spalling, separating from the brick, or sloped incorrectly toward the flue, we recommend a rebuild. We never guess - the camera inspection and a physical probe tell us which path is right, and we show you the evidence before you decide. Call (443) 998-2617 for a free estimate.
We offer a permanent 5% discount for seniors and veterans, $50 off any repair over $250, and free second opinions on any written estimate you’ve received. The $89 Seasonal Tune-Up is also available and includes a Level-1 inspection that often catches cap and crown issues before they become expensive. Ask when you call.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Owings Mills and nearby areas.





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