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 Astoria Owner’s Guide
An Olympia Chimney cap installed in Astoria typically runs between $285 and $540, including the replacement cap, mounting hardware, and labor. We stock Olympia Chimney-compatible caps in the common flue tile sizes (8″x8″, 8″x13″, 13″x13″) on our service trucks, so the swap is usually a one-visit job. Most Astoria homeowners discover the problem the same way: a rusted cap base found in the yard after a storm, water staining on the ceiling near the chimney chase, or the distinct sound of a loose cap rattling in wind off the East River.
Corrine Halstead, the owner at Level Two Chimney Astoria, has replaced enough Olympia Chimney caps across Steinway Street and the surrounding rowhouses to know the failure patterns before the ladder goes up. The camera doesn’t guess. Neither do we.
Which Olympia Chimney Models This Applies To
Olympia Chimney caps mount to the flue tile crown or the masonry crown itself, which means compatibility is driven by flue dimensions, not a specific Olympia model number. The company builds caps in two mounting configurations: slip-in (also called insert) caps that seat inside the flue tile, and full-crown caps that anchor over the entire chimney crown. Slip-in caps fit square or rectangular flues with exact outside dimensions like 8″x8″ or 8″x13″. Full-crown coverage caps use adjustable brackets to span crown widths from roughly 14 to 32 inches.
Check the stamp or sticker on the base of your old cap before you toss it. Most Olympia caps carry a model prefix like OCM or a size stamp etched into the metal. If that’s gone, measure the flue tile opening precisely – Astoria’s prewar brick chimneys often have flue tiles that have shifted slightly out of square over 80 to 100 years, and a cap cut for a nominal 8″x8″ opening won’t seat if the tile has moved a quarter inch. We carry OEM Olympia Chimney caps and quality aftermarket equivalents from Famco and Copperfield. For Astoria’s salt air and hard winters, the aftermarket stainless versions with the same gauge and mesh spec often outlast the standard galvanized OEM caps at the same installed price.
Signs Your Olympia Chimney Chimney Cap Installation Is Failing

- Water in the firebox after rain. The cap’s base seam has rusted through, or the cap has lifted off the flue tile entirely. Either way water is now running down the flue liner and pooling in the smoke chamber.
- Rusted metal pieces on the roof or in the gutter. Olympic caps are galvanized steel. Once the zinc layer burns off – usually after 8 to 12 years in Astoria’s coastal air – the base rusts through at the screw points and sections shear off in high wind.
- Diagonal rain stains on the ceiling near the chimney chase. This is the tell for a failed cap that’s allowing water between the flue and the chase framing. The stain usually appears on bedroom ceilings first because the water travels down the interior framing before finding drywall.
- Animal sounds or nesting debris in the fireplace. The cap’s mesh screening has rusted out or torn. Squirrels and raccoons in Astoria don’t need much of an opening; a 1.5-inch tear is an invitation.
- Black soot streaks exiting the cap and streaking the crown. The cap is too restrictive for your flue size, or the mesh is clogged with creosote. Smoke is not drafting cleanly, and the soot marks on the crown are the evidence.
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AfterReplacement Cost & What’s Included
Here’s what a written estimate actually looks like for Olympia Chimney cap replacement in Astoria:
- Slip-in cap (galvanized, Olympic OEM equivalent): $285-$340 installed
- Slip-in cap (stainless steel, Famco or Copperfield equivalent): $385-$440 installed
- Full-crown cap (galvanized, adjustable bracket): $440-$500 installed
- Full-crown cap (stainless steel): $500-$540 installed
Every estimate from us includes the cap, mounting hardware, removal and disposal of the old cap, and a photo record of the completed work – before and after, from the roof. If the crown itself is cracked or spalling, we’ll document it with photos and give you a separate number for that repair; we never fold unapproved work into a cap job. The 365-Day Done Right Promise applies to every installation. If the cap shifts, leaks, or comes loose within a year, we fix it at no charge. Clause 1 of the Haven Standard means the written price you approve is the price you pay.
DIY or Call Us?

You can safely check a few things from the ground: look for visible rust on the cap, sagging mesh, or missing sections, and note any water stains on your ceiling. That’s useful information when you call us. Climbing onto an Astoria rowhouse roof to replace a cap is a different decision. These roofs are steep, the parapet walls hide drop-offs, and a loose cap is already proof the flue top is compromised. Fall protection, proper anchors, and knowing how to seat a cap on an out-of-square flue tile without cracking the crown are all part of the job. If your cap failed because the crown has started to crumble, screwing a new cap into deteriorating mortar won’t hold. Call (516) 301-1549 and we’ll come out, inspect the flue top with a camera, and give you a written price before any work starts.
FAQs
Expect 8 to 12 years from a galvanized Olympia cap in Astoria, and 15 to 20 years from a stainless replacement. The salt air coming off the East River and the hard freeze-thaw cycles between November and March are what kill galvanized steel. The zinc layer oxidizes, the base screws rust through, and the cap fails at the seams first. If you want to avoid a second replacement in your ownership tenure, go stainless. Call (516) 301-1549 and we’ll quote both options in writing.
No. Once the galvanized base has rusted through at the screw points or the mesh has torn, patching buys you a season at most. The failure point is structural, not cosmetic, and a patched cap that blows off the flue in a storm becomes a roof hazard. Replacement is the honest fix.
The actual swap takes 45 to 90 minutes, depending on roof access and whether the old cap needs to be cut off with a grinder. We do the whole job including setup, cleanup, and photo documentation in one visit, usually inside two hours. You’ll have before-and-after photos before we leave the property.
We stock slip-in and full-crown caps in the most common Astoria flue sizes – 8″x8″, 8″x13″, and 13″x13″ – on every service truck. If your flue is an unusual size or oval, we order exact-fit caps and schedule the swap within the week. We also stock parts from DuraFlex, HeatShield, Gelco, and Famco, so if the cap failure revealed a liner issue on the camera, we can quote the full solution the same day. We’re an independent service provider and not affiliated with Olympia Chimney.
Get a Written Price for Olympia Chimney Cap Installation in Astoria

Call us at (516) 301-1549. We’ll answer with a live person, every hour of every day, not a voicemail. Tell us the flue tile size if you have it, and whether you saw water in the firebox or just found the rusted cap. We’ll schedule a visit, inspect with a camera, and hand you a written price with the scope and warranty before anything is installed. That has been the Level Two way in Astoria since 2009, and the photo record comes with every job, whether you book the repair or not.
Written by Corrine Halstead, Owner, Level Two Chimney Astoria at Level Two Chimney Astoria, serving Astoria and nearby areas.




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