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.
Fast, Reliable Chimney Cap & Crown Across Brooklyn
A Chimney Cap & Crown repair in Brooklyn typically runs $450-$1,400, and the work that matters most in this borough is rarely the cap itself. It’s the crown beneath it, the abandoned flues inside the shared stack, and the salt-laden air eating the masonry from the top down. We’ve inspected and repaired more than 38,000 chimneys since 2009, and the rowhouse stacks of Bed-Stuy, Crown Heights, and Park Slope tell us the same story over and over: water gets in, freeze-thaw does the rest, and nobody looks until the ceiling stains. Call (980) 580-8641 for a written quote before anyone touches your roof.
Why Emberly Chimney Cleaners Is Brooklyn’s Preferred Chimney Cap & Crown Company
Brooklyn housing stock does not forgive guesswork. A three-story brick rowhouse on a Carroll Gardens block shares its chimney stack with the building next door, and maybe the one behind it. That means a cracked crown on your side is never just your problem. Our crews know this because we document it: every visit includes a camera-scan inspection down the flue and a photo record of the crown, the cap, and the mortar joints before we quote a dollar figure. Corrine Halstead, who leads our Brooklyn work, has spent years watching salt air and nor’easter freeze-thaw cycles turn small crown cracks into spalled brick and waterlogged flues. When we write a price for a Chimney Cap & Crown in Brooklyn job, it reflects what the camera showed, not a flat rate pulled from a chart.
Here’s the part that separates us from the flashlight-and-a-handshake crowd: we put the price in writing before work starts, every time. No exceptions. That’s Clause 1 of the Haven Standard. We also back every job with a 365-Day Done Right Promise. If it is not done right, we make it right. Brooklyn homeowners tend to research before they call, and a lot of them have been burned by a chimney company that quoted one number on the phone and another from the roof. We do not work that way.
Our crews are background-checked and uniformed, and you will know the name of the technician assigned to your job before they arrive. Calls go to a live person, 24 hours a day. For Brooklyn specifically, our scheduling desk coordinates from the brand’s New York City office for Gelco service in Brooklyn, so a crew can typically reach neighborhoods from Greenpoint to Bay Ridge without the multi-week wait you get from companies that only pass through the borough once a month.
Our Chimney Cap & Crown Services in Brooklyn

Cap Installation
A chimney cap is the first line of defense against rain, snow, and the raccoons that love a warm flue in a Brooklyn winter. For a single active fireplace flue in a standalone home, a standard stainless steel cap installs in about an hour. For a rowhouse with multiple flues sharing one stack, which is the norm in brownstone Brooklyn, you need a cap configured to the flues that are actually in use. We stock Famco and Copperfield caps in common Brooklyn dimensions, which keeps turnaround short when a January nor’easter is two days out.

Cap Replacement
An old galvanized cap on a Park Slope rowhouse has usually rusted through at the seams after a decade of salt-laden air off the harbor. Replacement is straightforward: we remove the old cap, check the crown while we are up there, and install a new stainless steel cap sized to the flue. If the crown underneath is spalling, the new cap is only half the job, and we will show you the photos that prove it before recommending anything else.

Crown Repair
The crown is the concrete slab that seals the top of the chimney around the flues, and in Brooklyn it takes a beating. Salt air accelerates spalling, and freeze-thaw cycles driven by coastal storms force water into hairline cracks until they become channels. We repair crowns with a proper cementitious crown coat, not a quick smear of caulk. When the damage is structural, we rebuild. This is the repair that matters most in a shared stack: a failed crown on your side of the party wall lets water into the masonry your neighbor’s flue runs through.

Crown Coating
For crowns that are intact but weathered, we apply a Gelco crown coat that seals the surface and flexes with Brooklyn’s seasonal movement. This is a preventive step, not a Band-Aid. We will tell you plainly if your crown can be coated or needs to be rebuilt. No coating will fix a crown that is already crumbling, and we would rather lose a job than sell you a coating that fails in eighteen months.

Multi-Flue Cap
Brooklyn’s attached pre-1930 housing stock is where the multi-flue cap does its real work. A single stack in a brownstone often carries two or three flues: one for the original fireplace, one venting a gas boiler, and maybe one abandoned from a coal-to-oil conversion decades ago. A multi-flue cap covers the entire crown and terminates each flue correctly, with dedicated openings for active flues and sealed terminations for abandoned ones. This is a custom job almost every time, because the flue layout is different on every block.

Custom Cap
Some Brooklyn chimneys are not built to any modern dimension. Oversized rectangular flues, offset stacks, or weird additions from a 1990s condo conversion all mean the cap has to be fabricated to spec. We measure, fabricate, and install custom stainless steel caps that fit the actual chimney, not the closest catalog size. A poorly fitted cap is worse than no cap: it traps moisture against the crown and accelerates the exact damage you were trying to prevent.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Brooklyn
We install and service caps and crown materials from Famco, Copperfield, DuraFlex, and Gelco, procured through Haven’s buying network to keep pricing honest for Brooklyn customers. What that means in practice: when your rowhouse needs a three-flue cap with an abandoned flue sealed and two active terminations, we are not special-ordering from a catalog and passing along a markup. We keep common Brooklyn configurations in local stock, and custom fabrication usually adds only a few days. Corrine Halstead’s crews work with these materials every week, and they will tell you which brand fits your stack before they quote it.
Common Chimney Cap & Crown Problems We See in Brooklyn Homes

- Unsealed abandoned flues from boiler conversions. In a brownstone that burned coal in 1920 and oil in 1960, the original flue often sits open at the crown with nothing venting through it. That open flue lets rain, birds, and cold air into a shared stack, and it can allow exhaust from an active neighboring flue to backdraft into your unit.
- Salt-driven spalling at the crown. Brooklyn is surrounded by Upper New York Bay, the East River, and the Atlantic. Salt-laden air settles into crown mortar and accelerates the freeze-thaw damage that turns small cracks into missing chunks of concrete within a few winters.
- Decorative flues left uncapped inviting nesting. When a fireplace is decorative and never used, homeowners assume the chimney does not need a cap. Raccoons and birds disagree, and a nest in the wrong place can block draft and push carbon monoxide back through a connected boiler flue in the same stack.
- Neighbor exhaust in shared stacks. In attached rowhouses, a neighbor’s boiler may vent through a flue that runs within inches of your own living space. If your side has an unsealed abandoned flue and their side has a blocked or poorly maintained termination, exhaust finds the path of least resistance. It is a real cross-contamination risk, and the fix starts with a camera inspection.
On a Bed-Stuy brownstone block, our crew arrived to find a three-flue stack with the original coal-era flue still open at the crown, but repurposed decades ago for an oil boiler that had since been removed. The adjacent flue vented an active gas boiler, and the shared masonry crown was spalling heavily. We installed a custom multi-flue cap with a dedicated termination for the active flue and sealed the abandoned flue with a stainless steel cap, then rebuilt the crown with a Gelco crown coat to stop water intrusion. That is the kind of job a generic cap company cannot quote properly, because the generic company never sends a camera down the flue.
Pricing for Chimney Cap & Crown in Brooklyn, NY
A standard single-flue stainless steel cap installation in Brooklyn runs $450-$650. A custom multi-flue cap for a rowhouse stack with an abandoned flue to seal typically runs $800-$1,400, depending on flue count and crown condition. Crown coating with a Gelco product runs $400-$700 for a typical two-flue brownstone crown. A full crown rebuild runs $1,200-$2,200 when salt spalling has destroyed the original concrete. Before we quote anything, we put a camera down the flue and show you photos of what we found. That inspection is included in the visit, and the written price covers the exact scope, with no surprise line items after the tech is on your roof. Call (980) 580-8641 for your free estimate.
We Also Serve Cities Near Brooklyn

Our crews serve the full Brooklyn footprint and the surrounding boroughs, including Manhattan, Astoria, Staten Island, and Jamaica. If you own a rowhouse in any of those markets, the chimney problems are often the same shared-stack, salt-air issues we see daily across Brooklyn. Dispatch and scheduling are coordinated from our New York City office, so response times stay tight across the metro area.
Serving Brooklyn, NY - Our Local Coverage Area
We’re based in the Brooklyn area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Cap & Crown in Brooklyn

Yes, and in a shared stack you need it more than a standalone house does. An uncapped flue in a rowhouse invites rain, birds, and cold air into a chimney that runs through your walls and your neighbor’s. Worse, if your abandoned flue sits open next to an active boiler flue in the same stack, exhaust can backdraft into your unit through the open channel. A stainless steel cap that seals your unused flue is a few hundred dollars and closes the pathway. Call (980) 580-8641 for a written quote.
Brooklyn’s crown cracking is driven by salt-laden air from Upper New York Bay and the East River, which accelerates spalling, and by nor’easter freeze-thaw cycles that force water into the concrete. If you patch a Brooklyn crown with standard mortar, it cracks again within two winters because the material cannot flex with the temperature swings. We use a Gelco crown coat or a full rebuild with a crown mix designed for coastal masonry, and we photo-document the repair before and after, per Clause 4 of the Haven Standard.
You need a custom multi-flue cap with a dedicated termination for the active flue and sealed caps over the two abandoned flues. This is not an off-the-shelf item, because the flue layout on your brownstone is specific to your building’s conversion history, which we verify with a camera inspection. The cap spans the full crown, keeps water out of the shared masonry, and stops the abandoned flues from venting air backward into your unit. We fabricate these in stainless steel, and written pricing is provided before work starts.
You can, and in Brooklyn’s shared stacks it is often the right first step, but do not use a bag of mortar or a sheet of metal screwed over the opening. An improper seal traps moisture inside the flue and against the crown, which is exactly what a Brooklyn salt-air climate punishes. We install a stainless steel cap designed to seal the flue while allowing the masonry to breathe, and we camera-scan the flue first to confirm nothing is venting through it. A sealed wrong flue is a carbon monoxide hazard; this is not a place to guess. Call (980) 580-8641 and we will show you the camera footage before quoting anything.
First, you need a camera-scan inspection of your flues to see whether your side has an unsealed abandoned flue or a cracked crown that is letting exhaust migrate through the shared masonry. Then we check the cap configuration at the top of the stack to confirm both active flues are terminated correctly. This is not a situation to sit on: exhaust backdrafting into a living space is a carbon monoxide risk. Our crews handle shared-stack Brooklyn inspections all the time, and the photo record we deliver shows exactly what is venting where. Call (980) 580-8641 to schedule.
If your chimney cap or crown has been patched, caulked, or ignored through one too many Brooklyn winters, call us at (980) 580-8641. We will put a camera down the flue, show you the photos, and hand you a written price before anyone starts work. Emberly Chimney Cleaners serves all of Brooklyn, from Bed-Stuy to Bay Ridge, with the same standard on every job: documented evidence, written pricing, and a 365-Day Done Right Promise.
Written by Corrine Halstead, Owner at Emberly Chimney Cleaners, serving Brooklyn since the company’s founding in 2009.





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