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 New York City: What to Know First
We install, replace, and repair Olympia Chimney caps and crowns throughout New York City as an independent Olympia Chimney service provider, not a manufacturer-authorized shop. A standard Olympia cap replacement on a single-flue brownstone chimney typically runs $380 to $640 including parts and the camera check, while crown repair lands between $550 and $1,100 depending on whether we’re sealing with a crown coat or rebuilding the overhang. If you’re seeing rust streaks from your cap or spalling along the crown’s edge, call (980) 580-8641 and we’ll get a written price in your hands before any tool comes off the truck.
How Olympia Chimney Products Fail - and How We Fix Them
- Rust-through on the Olympia standard single-flue cap. The base galvanized cap that ships with many New York City rowhouse installations takes a beating from Atlantic salt air and acid rain off building tops. The mesh screen corrodes first, then the lid loses its crown edge, and rainwater starts pouring straight down the flue. We see this constantly in the West Village and Carroll Gardens, where caps are ten to fifteen years old and nobody’s looked at them since the last buyer’s inspection. Replacement is usually a half-hour job after the camera confirms the flue itself is sound.
- Caulk failure at the cap-to-liner joint on Olympia’s multi-flue storm collars. The storm collar is the thin metal ring that seals the cap base to the flue liner. On older Olympia installations, the factory caulk dries out and peels in about four to seven years. What’s left is an open seam that lets water track down the outside of the liner and pool on the smoke shelf. We remove the old collar, wire-brush the seating surface, and set a new collar with high-temperature silicone rated for outdoor chimney exposure.
- Undersized caps on Olympia multi-flue installations. A lot of New York City rowhouses with two fireplaces got a single wide Olympia cap stretched across both flues. It works until it doesn’t. The center bracket sags over time, the cap tilts, and one flue ends up partially open to rain and birds. We measure the actual flue spread before ordering, then quote a properly sized Olympia or Copperfield multi-flue replacement that covers both openings with correct overhang.
- Crown cracking and spalling with exposed aggregate. Olympia caps sit on whatever crown was poured when the chimney was built or last rebuilt. In New York City, that crown has been through decades of freeze-thaw cycles. Hairline cracks widen every winter. Corners chip off. Once water gets into the crown’s core, it expands when it freezes and blows out more material each spring. We grind the failed crown surface, apply a flexible crown coat that moves with the masonry, and rebuild the drip edge so water falls away from the brick, not down it.
- Loose or missing hold-down screws on Olympia cap legs. The screw-down legs on Olympia caps can back out from wind vibration on exposed roof decks, especially along the Hudson and East River corridors where gusts are constant. A loose cap rattles and shifts, eventually scoring the crown surface. We catch this on the camera inspection, reset the cap, and torque the fasteners with a dab of thread locker so they stay put through storm season.
Our Olympia Chimney Chimney Cap & Crown Process

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Call and book. A live person answers at (980) 580-8641. You’ll get a two-hour arrival window and a text when the tech is on the way, per Clause 3 of the Haven Standard.
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Camera down the flue. Before we touch the cap or crown, we run the NFPA 211 Level 2 camera scan. We’re looking at the liner walls, the smoke chamber, and the crown’s underside. You’ll see the footage yourself when the camera comes up.
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Written price and scope. We hand you a written scope of work with the exact Olympia or quality aftermarket part number, the crown-coat product we’ll use, and a dollar figure. No “we’ll see when we get up there” pricing. That’s Clause 1 of the Haven Standard.
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The repair or replacement. We remove the old cap, prep the crown, set the new cap, and seal everything to spec. If crown repair is indicated, we grind, coat, and reform the drip edge in one visit.
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Photo record and walkthrough. You get a documented photo record of the finished work under Clause 4. We walk you through what we did and what the camera found, and we note anything that can safely wait.
- 6
Warranty in writing. Every job carries the 365-Day Done Right Promise stamped on the written warranty. If it’s not right, we come back and make it right.
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Straight Olympia cap replacement on a single flue: $380 to $640, including the camera check and photo record. Multi-flue Olympia cap for a two-flue rowhouse chimney: $590 to $940 depending on flue spacing and whether we need a custom width. Crown coating with flake-to-patch repair: $550 to $850. Full crown rebuild with formed overhang and drip edge: $850 to $1,100. The price moves on access (roof access via hatch versus full scaffolding), flue count, and how much of the crown has to be ground back. Every quote is written, itemized, and yours to keep. Call (980) 580-8641 for a free estimate.
Why New York City Homeowners Call Emberly Chimney Cleaners for Olympia Chimney Work

Because you’ll see the problem before you pay to fix it. Corrine Halstead built this company on showing customers the camera footage herself, naming what the flue walls actually look like before any conversation about price begins. That practice started in 2009 and hasn’t skipped a job since. We’ve inspected and cleaned more than 38,000 chimneys, every one with a written price before work started and a documented record when it was done. When an Olympia part isn’t the right call, we’ll tell you and quote DuraFlex, HeatShield, or Gelco material instead. We carry a Free Second Opinion on any written estimate, and the 365-Day Done Right Promise means the job isn’t done until it’s done right, in writing.
FAQs
No. Using a quality aftermarket cap does not void the chimney’s structural warranty, and as an independent Olympia Chimney service provider, we can install OEM or aftermarket parts depending on what’s actually best for your flue configuration. We’ll note the part choice in your written scope so you have a record.
Most single-flue Olympia cap replacements are done in one visit, usually within the same week you call. Multi-flue custom caps take three to seven days if we have to order a specific width. Access conditions on New York City rooftops are the usual variable, not parts availability.
Yes, if the crown still has structural integrity. We grind out cracks, patch spalled sections, and apply a flexible crown coat that handles New York City’s freeze-thaw cycles. If the crown has crumbled past the point of patching, we’ll show you the footage and give you a straight rebuild price. Either way, you’ll see it before you decide.
Probably. A rusted cap with compromised mesh or a sagging lid is no longer keeping water, birds, and debris out of the flue. The cap is the cheap insurance against a liner replacement. We’ll show you the camera view of your flue walls so you can make that call with evidence in front of you. Call (980) 580-8641 and we’ll get you a written number.
A written scope of work with part numbers and dollar figures, a documented photo record of the finished job, a written warranty under the 365-Day Done Right Promise, and a camera-scan report on the condition of your flue. Clause 4 of the Haven Standard requires the photo record on every job, and we’ve kept that archive continuously since 2009.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners at Emberly Chimney Cleaners, serving New York City and nearby areas.





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