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 Installation: The Danbury Owner’s Guide
An Olympia Chimney chimney cap installed by our crew in Danbury typically runs $285-$475 for most single-flue setups, including the cap, flashing collar if needed, and labor. We stock common Olympia Chimney cap sizes on our trucks, and most replacements are finished in under two hours. You’ll usually know the cap has failed when you spot rust streaks down the chimney face, hear water dripping in the flue during a rainstorm, or find debris - leaves from the oaks along Lake Avenue, squirrel nests - sitting on your smoke shelf.
Tell me what you’re seeing, and I’ll tell you what it actually means.
Which Olympia Chimney Models This Applies To
Olympia Chimney manufactures caps across several product lines, and the right match depends on your flue type and existing chase top or crown condition. The Stainless Steel Single-Flue Caps (typically 8″×8″ through 13″×13″ base dimensions) fit standard terra cotta flue tiles common in Danbury’s 1960s-1980s colonials. The Multi-Flue Caps cover broader chase tops and require precise outside-to-outside flue measurement plus chase top dimensions - a half-inch off and you’ll have gaps that funnel water straight in.
Here’s how to identify yours: check the underside of your existing cap for an Olympia Chimney stamp or part number, or measure the flue tile’s outside dimensions with a tape measure, not the crown. For factory-built chimneys, the Model 3000 series caps with the bolt-on base ring are specific to that line; generic slip-over caps won’t seat properly and will blow off in the first Nor’easter.
We carry both OEM Olympia Chimney caps and equivalent-grade aftermarket from Gelco and Famco. The OEM fits exactly but costs more; our aftermarket equivalents match the 304 stainless steel gauge and mesh spec, and we back either with the same 90-Day Done Right Promise. In writing, no arguing.
Signs Your Olympia Chimney Chimney Cap Is Failing
- Rust staining on the chimney brick or siding. Olympia Chimney’s galvanized caps in the older 1000 series eventually sacrifice their zinc coating to Danbury’s freeze-thaw cycles and road-salt aerosol from I-84. Once rust blooms, the metal thins fast. We replace with 304 stainless or copper to break the cycle.
- Water dripping or pooling in the firebox after rain. The cap’s mesh screen may look intact from the ground while the lid seam has separated, or the base flange has pulled away from the flue tile. Water finds the gap, runs down the flue, and pools where you see it. Left alone, it ruins the damper and rusts the fire grate.
- Mesh screen clogged or missing entirely. The ¾-inch spark arrestor mesh on Olympia Chimney caps catches creosote flakes and, in Danbury’s oak-heavy neighborhoods, acorns and leaf litter. A clogged mesh chokes draft and sends smoke into the room; a missing mesh (often torn off by raccoons in the Wooster Street area) lets animals and burning embers through.
- Cap sitting crooked or visibly lifted. The mounting brackets on older Olympia Chimney bolt-on caps fatigue after 15-20 years of thermal cycling. One bracket snaps and the cap tilts, creating a funnel that catches wind and drives rain. We’ve seen caps launch entirely during March gales along the Still River corridor.
- Draft problems or smoky fireplace even with the damper open. A cap that’s too small for the flue, or installed without adequate clearance between lid and flue opening, creates a pressure restriction. Olympia Chimney’s spec calls for minimum 5 inches; we’ve found caps installed by others with 3 inches or less, choking the flue like a thumb on a straw.
Replacement Cost & What’s Included
| Component | Price Range (Danbury) |
|---|---|
| Olympia Chimney single-flue cap (OEM), installed | $285-$375 |
| Olympia Chimney multi-flue cap or chase cover, installed | $395-$575 |
| Flue tile repair/rebuild if cracked at cap base | $180-$340 additional |
| Stainless steel storm collar and sealant | $45-$85 additional |
What drives the range: flue accessibility (steep roof pitch, multiple stories), whether the existing cap left corrosion damage requiring tile prep, and whether you choose OEM Olympia Chimney or our equivalent-grade aftermarket. We agree on the full price before we start - no surprises on the bill. Every cap installation includes a Level-2 camera inspection of the flue above the smoke shelf, photos you can see, and a plain-English verdict on whether anything else needs attention now or can wait.
The 90-Day Done Right Promise covers the installation and the cap itself. If it’s not right, we come back. No paperwork, no arguing.
DIY or Call Us?
Here’s what you can safely check from the ground or a steady ladder at gutter height: confirm the cap is present, roughly level, and the mesh isn’t visibly torn. Use binoculars. Note any rust streaks or gaps between cap base and flue tile. That’s the limit of what we’d advise.
Installing a chimney cap involves working at height on a roof surface that may be steeper than it looks, often with a masonry edge that offers poor footing. The cap must seat square, seal without gap, and withstand 60-mph winds. A cap that blows off becomes a liability for whatever it hits. More critically, a poorly fitted cap traps moisture in the flue - we’ve been called to jobs where a homeowner’s self-installed cap caused $2,800 in hidden flue damage over two winters.
We carry common Olympia Chimney cap sizes on our trucks. Most jobs are done in a single visit. Call (475) 375-9457 and we’ll give you a straight answer on whether yours is a same-day fix or needs measuring first.
FAQs
In Fairfield County’s climate, a 304 stainless Olympia Chimney cap typically lasts 20-25 years; the older galvanized models often show failure at 12-15 years due to road salt and freeze-thaw stress. Coastal exposure toward Long Island Sound accelerates this by a few years. Call (475) 375-9457 for an exact quote - estimates are free.
Sometimes: a loose bracket can be re-secured, or a small rust spot ground and sealed if caught early. Once rust has penetrated the lid seam or the mesh has torn, replacement is the only sound fix - patches fail within a season or two. We document what we find with photos and tell you plainly which path makes sense.
Most single-flue Olympia Chimney cap replacements take 45 minutes to 90 minutes on site, including our camera inspection and photo report. Multi-flue caps or jobs requiring chase top modification run 2-3 hours. Our technicians arrive with the cap and tools; you don’t wait for a parts run.
We stock the common single-flue sizes (8″×8″ through 13″×13″) and several multi-flue configurations on our trucks. Less common sizes or the copper finish options we order direct - typically 3-5 business days. We’ll know once you describe your setup or send a photo. Call (475) 375-9457 and we’ll sort it out.
Hearthstone Chimney Co. is an independent service provider; we are not affiliated with Olympia Chimney. We install their caps because they’re well-made and we’ve seen them hold up.
Ready to stop the drip and protect the flue? Call (475) 375-9457. A live person answers, 24 hours a day. We’ll schedule a free estimate, agree on a price upfront, and get it done right - with photos you can see, a plain-English verdict, and our 90-Day Done Right Promise in writing.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Danbury and nearby areas.





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