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.
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AfterFast, Reliable Chimney Cap & Crown Across Barnum Island
Chimney cap and crown work in Barnum Island usually runs $250-$650 for a standard cap installation or replacement, and $450-$1,200 for crown repair or recoating depending on how much mortar has spalled and whether the flue opening needs grinding first. Most jobs on the island take one visit, and we’ll show you camera footage of the damage before a single tool comes off the truck. Call (516) 604-2573 and we’ll give you a flat price before we set the ladder.
Wendell Pike started Top Hat Chimney in 1999, and we’ve been working barrier island chimneys long enough to know Barnum Island is harder on caps and crowns than just about anywhere else in Nassau County. The salt air here doesn’t come from one direction. It comes at your chimney from every side at once.
Why Top Hat Chimney Is Barnum Island’s Preferred Chimney Cap & Crown Company
We run into our customers at the grocery store, at the post office, and at the marina. That’s not marketing talk. That’s what happens when an owner-operated chimney company works a small island community for years. Wendell puts his name and license number on every job, and if the work isn’t right, one call brings him back. That’s the 90-Day Done Right Promise, in writing, on every single invoice.
Homes on Barnum Island have a specific problem. The chimneys are mostly mid-century masonry, originally built as summer bungalows and later converted to year-round use. They weren’t designed for constant saltwater exposure from Reynolds Channel and the South Shore bays. We’ve seen galvanized caps on this island corroded through in under six years, and crowns that look like gravel after a few winters of chloride-laced freeze-thaw cycles. When a homeowner calls us from Barnum Island, we already know what we’ll likely find up there before we even climb.
Phones are answered by a live person around the clock, and often it’s Wendell himself. No call center. No voicemail box. You tell us what’s going on with your chimney, and we give you a real answer on the phone, plus an upfront price before work begins. If you’re on Barnum Island and you’re not sure whether the cap that came with the house was ever stainless steel, call us. We’ll tell you what to look for, and we’ll come out if you need us.
Our Chimney Cap & Crown Services in Barnum Island
Every Barnum Island chimney is different, but the saltwater exposure here creates a shared set of problems. Here’s what we do most often on the island.
Cap Installation
A new chimney cap does two jobs on Barnum Island. It keeps rain, birds, and debris out of the flue, and it protects the flue liner from direct salt spray. Because the island is surrounded by bay water on all sides, we recommend stainless steel or copper as the baseline, not an upsell. A standard galvanized cap will start pitting within a few years here, and by year five or six you’ll see daylight through it. We stock stainless caps sized to the flue tiles common in mid-century Barnum Island homes, and installation usually takes under an hour once we’re on the roof.
Cap Replacement
If your existing cap is galvanized and you’ve been in the house for more than a few years, there’s a good chance it’s already failing even if you haven’t looked up there. Salt-laden marine air from every direction eats through zinc-galvanized steel fast. We’ll remove the old cap, inspect the flue opening, and fit a stainless or copper replacement that will actually hold up. We’ll show you the rotted cap before we toss it. You’ll see exactly what you paid to replace.
Crown Repair
The crown is the mortar slab that caps the top of your chimney, and on Barnum Island it takes the same beating as the cap itself. Salt-saturated mortar absorbs water, the water freezes in winter, and the expansion spalls the surface. Once the crown cracks, water gets down into the flue tile and the firebox. We grind away the damaged material, rebuild the crown with a proper overhang and drip edge, and seal it so water slides off instead of soaking in. Ignoring a cracked crown is how minor cap work becomes a liner replacement.
Crown Coating
Some crowns haven’t failed structurally but have lost their protective surface. On Barnum Island, we use Gelco crown coatings because they’re formulated to reject water and resist the kind of chloride penetration that makes standard sealers break down early. A properly applied coating buys years before a full rebuild is needed, which matters a lot when the air is working against your chimney 365 days a year. We recoat more crowns on this island than anywhere else we work.
Multi-Flue Cap
Many Barnum Island homes have two flues: one for the fireplace and one for the furnace or water heater. A single-flue cap leaves the other opening exposed. A multi-flue cap covers the entire chimney top, sealing both liners under one stainless assembly. This is the right answer for the older bungalow-style homes on the island where separate flue tiles sit close together. We measure the full crown footprint, not just the tile openings, and custom-fit a cap that bolts to the crown and won’t shift in a nor’easter.
Trusted Brands We Service in Barnum Island
We install and service products from Gelco, Olympia Chimney, and Famco. We stock stainless steel caps, multi-flue assemblies, and crown coating materials sized for the flue tiles common in Barnum Island’s mid-century housing stock, so we don’t have to order parts and come back a second time. When your chimney needs a part that holds up to salt air, we’d rather put in something we know will last than whatever is cheapest on the shelf. Wendell has been installing these brands for years, and he will tell you plainly which one belongs on your roof.
Common Chimney Cap & Crown Problems We See in Barnum Island Homes
- Galvanized caps corroded through in five to seven years. This is the single most common thing we find on Barnum Island. The 360-degree marine air attacks the zinc coating from all sides, and once that coating is gone, the steel underneath rusts fast. A rusted-through cap leaves the flue open to rain, birds, and whatever the wind carries in.
- Salt-saturated crowns spalling and cracking. Mortar is porous. Saltwater fills those pores, and every winter freeze expands the water and pops the surface weak. Cracks start at the flue opening and spread outward. Once the crown is breached, water migrates down into the flue liner and firebox, which is where repair costs jump significantly.
- Post-Sandy chimneys with unaddressed water damage. Hurricane Sandy flooded a lot of Barnum Island homes in 2012. Some chimneys were rebuilt, but plenty were not. If your home took on water and the chimney was never opened up for a proper inspection, there may be a compromised crown, cracked flue tile, or damaged firebox up there that no one has looked at in over a decade.
- Improperly sized caps on older bungalow chimneys. Homes originally built as summer bungalows often have smaller or irregular flue tiles than modern chimneys. A generic cap from a big box store doesn’t fit right, doesn’t seal right, and doesn’t last right on a seaside chimney. We measure the actual tile and crown dimensions before we ever recommend a cap.
Pricing for Chimney Cap & Crown in Barnum Island, NY
A standard stainless cap installation in Barnum Island typically runs $250-$450 for a single flue. A multi-flue cap covering a full chimney crown runs $500-$800 including custom sizing and installation. Crown repair, which includes grinding out damaged mortar and rebuilding the crown, usually lands between $450-$900 depending on how much material has to come out. A Gelco crown coating on its own runs $300-$550 and is worth doing before the crown cracks through. These are honest ranges for this island’s market. We don’t quote one price on the phone and another at the door. The number you hear on the phone is the number on the invoice, and it includes the trip inside our county. Call (516) 604-2573 for a free estimate.
We Also Serve Cities Near Barnum Island
Our Chimney Cap & Crown in Barnum Island coverage extends to the South Shore communities around us, including Lawrence, Woodmere, Hewlett, and Cedarhurst. If you’re in one of those towns and your chimney cap has seen better days, call us and we’ll get you on the schedule. One crew, one owner, the same 90-Day Done Right Promise in every town we work.
Serving Barnum Island, NY - Our Local Coverage Area
We’re based in the Barnum Island 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 Barnum Island
Because Barnum Island is a true barrier island surrounded by saltwater on essentially all sides, so your cap gets hit by salt-laden marine air from every direction at once, not just from one prevailing coastal wind. That 360-degree exposure strips galvanized coatings fast. Standard galvanized caps that might last ten-plus years in Island Park generally corrode through on Barnum Island in five to seven years. The practical answer is stainless steel or copper, which is what we recommend for every cap we install here. Call (516) 604-2573 for a free assessment of what’s on your roof right now.
Once a year, burn or no burn. Chimneys break in the off-season too, and on Barnum Island the salt air never stops working. An annual check is enough to catch a pitting galvanized cap before it rusts through, or a hairline crown crack before winter freeze-thaw turns it into a structural problem. If you haven’t looked at the cap since you bought the house, or since Sandy, get it checked once. The camera footage and a plain-English verdict: that’s what you get, every time, no exceptions.
Start with the crown and the flue tile directly under the cap. Flooding doesn’t just wet the firebox. It saturates the masonry from the inside, and saltwater does lasting harm. If the crown was never recoated after Sandy and has been in Barnum Island’s marine air for a decade-plus, the mortar may be spalling, and the flue tiles could have absorbed water and cracked. We recommend a camera inspection before you assume the chimney is sound. Nothing gets recommended without camera evidence you can see for yourself.
Yes, and in fact we do it regularly on Barnum Island. The older bungalow chimneys often have two smaller flue tiles set close together, and a conventional single-flue cap leaves one opening exposed or forces an awkward fit. We measure the full crown footprint, not just the tile openings, and build up a multi-flue cap that seals everything. It protects both liners from the island’s salt spray and keeps rain out of the furnace flue too. Call (516) 604-2573 and we’ll let you know if your chimney can take one.
We use Gelco crown coatings on Barnum Island because they’re formulated specifically to handle the kind of chloride penetration and freeze-thaw stress this island dishes out. Standard sealers break down within a couple of years here. The key is applying a coating that rejects water before it soaks into the mortar. We pulled a job on a mid-century home along the bay side of Barnum Island where the owner had a DuraFlex stainless cap installed after Sandy but the crown was never recoated. Salt spray had eaten through the old coating, and freeze-thaw had spalled the mortar right at the flue opening. We ground the damaged crown, applied fresh Gelco, and swapped in a new Olympia Chimney multi-flue cap so both liners were sealed. When we left, the draft pulled steady on a Level 2 inspection. That’s the repair that holds up on this island. Call (516) 604-2573 and we’ll inspect your crown the same way.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Barnum Island and the South Shore. Wendell has over 29 years of chimney experience and stands behind the 90-Day Done Right Promise on every job.