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.
Gelco Chimney Cap & Crown in Brooklyn: What to Know First
Gelco chimney cap and crown work in Brooklyn typically runs $425 to $1,300 depending on whether we’re replacing a single cap, recoating a crown, or fabricating a custom multi-flue cover. Most jobs go from phone call to finished work in under a week, and you get a straight price before a single tool comes off the truck. If you own a home in Brooklyn with a Gelco cap or crown that’s showing its age, this page tells you what that actually means, what it costs to fix, and when it can wait.
Call (516) 289-9316 and you’ll get a live person. Might be Wendell himself. We’ll talk through what you’re seeing and tell you honestly whether it needs a repair, a replacement, or nothing at all.
How Gelco Products Fail - and How We Fix Them
Gelco makes solid chimney components, but every brand has its weak points. After two decades on Brooklyn rooftops, here’s what we see most often and how we handle it. We’re an independent Gelco service provider, and the fixes below come from time spent looking at the actual metal, not a parts catalog.
- Gelco standard single-flue caps: the screen clogs first. The stainless mesh on Gelco’s basic cap line does its job too well in Brooklyn, where tree debris and the fine grit from brownstone masonry accumulate fast. You’ll notice smoke backing into the room or a lazy draft. The cap isn’t broken; it’s suffocated. We pull it, clean the mesh properly, and check for any warping before it goes back on. Often that’s the whole repair.
- Gelco multi-flue caps: seam separation at the corners. The larger custom and semi-custom Gelco tops we see on older Brooklyn homes hold up well against rain, but the corner seams are where the weather gets in. After ten or twelve winters of freeze-thaw cycles, those seams start to open. Water gets underneath, runs down the outside of the flue tile, and sits on the crown. You won’t see it from the ground. We will.
- Gelco galvanized caps in coastal-adjacent neighborhoods. If you’re within a mile or two of the water in places like Sheepshead Bay or Marine Park, a galvanized Gelco cap will rust out faster than the same cap in Park Slope. The salt air eats the zinc coating, and once the base steel is exposed, you’ve got a few years at most. When we replace those, we strongly recommend the stainless Gelco equivalent. It costs more up front and buys you a decade or more.
- Crown failure underneath a perfectly good cap. This one catches people off guard. The Gelco cap looks fine, but water is getting to the crown through hairline cracks that have been there since the original pour. In Brooklyn we see this constantly on homes built before 1990, where the crown was done with a standard mortar mix instead of a proper Portland-based crown compound. The cap sheds water, but the crown beneath is crumbling. We recoat with a flexible crown sealant rated for freeze-thaw cycling, and the cap goes back on only after the crown is solid again.
- Wind-damaged Gelco caps on three-story and four-story rowhouses. Brooklyn gets real wind shear off the East River in winter, and a Gelco cap that’s been loosened by rust or vibration will slip. Not always off the flue entirely, but enough to tilt and stop draining. We’ll see this on the taller rowhouses in Williamsburg and Bushwick where the chimney stands above the roofline with nothing blocking the wind from the north. The fix is a proper mechanical reattachment, not just tightening what was there.
Our Gelco Chimney Cap & Crown Process
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You call, we talk. You describe what you’re seeing. We’ll ask a few questions about the age of the cap, the type of chimney, and what’s been done before. If it sounds like something minor, Wendell will tell you that on the phone.
- 2
We get on the roof. Wendell or one of his crew goes up, takes photos, and measures. You get camera footage of everything: the cap, the crown, the flue tile, and anything else that matters. No guesses, no “you’ll need to trust us on this one.” You see what we see.
- 3
The verdict, plain English. If the Gelco cap can be cleaned and re-secured, we say so and quote that. If it needs replacing, we’ll tell you whether an OEM Gelco part is worth the wait or whether a quality aftermarket stainless cap does the same job for less. On Brooklyn homes where the cap size is standard, aftermarket saves real money. On custom multi-flue setups, we may recommend staying with Gelco.
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The work. We remove the old cap, address whatever’s wrong at the crown, and install the new cap with mechanical fasteners rated for high wind. Crown repairs get the old material cut back to sound substrate before we recoat. We don’t smear new compound over crumbles.
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The test and the documentation. We check the draw, photograph the finished work, and leave you with before-and-after shots. You’ll know exactly what was done.
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The 90-Day Done Right Promise. If anything about the work isn’t right, one call brings us back. It’s in writing on every job we do.
What Gelco Chimney Cap & Crown Costs in Brooklyn
Here’s straight numbers for the Gelco work we do in Brooklyn:
- Gelco cap cleaning and re-securing: $225 to $425, depending on roof access and cap size.
- Standard single-flue Gelco cap replacement: $425 to $650 installed, stainless steel.
- Multi-flue or custom Gelco cap replacement: $700 to $1,300, depending on flue count, dimensions, and whether it’s stock or fabricated.
- Crown recoat and seal: $350 to $600 for a typical single-flue crown, more for larger custom jobs.
- Crown rebuild (when the old one’s gone too far): $900 to $1,800, done properly with a Portland-based crown compound.
What moves the price in Brooklyn? Roof pitch and access on the tall rowhouses, how many flues, whether you need stainless or galvanized, and what shape the crown is actually in once we start. The price we quote before the work starts is the price on the invoice. If we find something new once we’re up there, we stop and call you. No surprise line items.
Call (516) 289-9316 for a free estimate. If you’ve got a written quote from someone else, bring it to us for a free second opinion.
Why Brooklyn Homeowners Call Top Hat Chimney for Gelco Work
Top Hat Chimney has been on Brooklyn rooftops since 1999. Wendell Pike grew up in San Diego, but Brooklyn is where he’s spent the better part of two decades, learning the quirks of every rowhouse style from Flatbush Avenue to the quieter blocks of Carroll Gardens. He knows Gelco products because he’s pulled them apart and put them back together, not because a distributor sent a brochure.
When you call us, a live person answers. Every time. The crew shows up in uniform, background-checked, and on the window we gave you. If that window slips, we call.
And if you don’t need the work, Wendell will tell you that too. That’s been the rule since day one. We also work with DuraFlex and HeatShield when your chimney needs more than a cap or crown, so you’re not getting sent to some other company when the scope grows. If it doesn’t need doing, we’ll tell you that too.
We stand behind every Gelco job with the 90-Day Done Right Promise. One call brings us back, no argument, no fine print.
FAQs
Gelco caps are mechanical components; replacing a worn one doesn’t void a chimney warranty, and we use either OEM Gelco parts or quality stainless aftermarket parts that fit the flue correctly. We’re an independent Gelco service provider, not an authorized dealer, so our recommendation on parts always puts your chimney first.
A stainless Gelco cap in Brooklyn should give you 12 to 20 years, though homes near the water may see less. Galvanized lasts 8 to 12 here before the salt air and freeze-thaw cycles catch up. The crown under it typically needs recoating every 10 to 15 years. Call us and we’ll tell you where your setup stands.
We match the cap dimensions and style as closely as possible, but if you have multiple flues with matching Gelco caps, we’ll talk you through whether a single replacement looks close enough or whether you’d be happier replacing the set. The function matters first; the roof line looks matter too, and we’ll be honest about both.
Once a year, burn or no burn. Chimneys break in the off-season too. The things that kill a Gelco cap, weak corner seams, clogged mesh, crown cracks under the cap, all hide from the ground. We’ll take photos and give you the camera footage with a plain-English verdict, every time, no exceptions. Most inspections turn out to be nothing. That’s fine by us. Call (516) 289-9316 to schedule a look.
Most cap and crown jobs are done within four to seven days of the first call, depending on whether we need a custom part fabricated. If you’re seeing water in the firebox or smoke backing up, call us at (516) 289-9316 and we’ll get honest about how urgent it actually is.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Brooklyn and nearby areas.





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