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 Nesconset
If you own a home in Nesconset built before 1980, your chimney was very likely designed for an oil-fired boiler, not a wood fire. That matters more than most homeowners realize. When the cap is missing, cracked, or rusted through and the crown is eroding, water gets into flues that were never meant to take on moisture. We install, replace, repair, and coat chimney caps and crowns throughout Nesconset, and we’ll show you camera footage before we recommend a single thing. Call (934) 935-3847 for a free estimate.
Our Chimney Cap & Crown crew knows the housing stock here. We work on ranch homes near Lake Ronkonkoma, split-levels off Smithtown Boulevard, colonials tucked around Gibbs Pond, and Cape Cods throughout the 11767 zip. Nesconset’s chimneys are not like newer construction. They’re mid-century masonry with original terracotta liners, lime-based mortar, and often two flues. One flue fed the oil boiler. One fed the living-room fireplace. After a heating conversion, that oil flue often sits uncapped and forgotten. That’s a problem we fix every week.
Why Top Hat Chimney Is Nesconset’s Preferred Chimney Cap & Crown Company
Wendell Pike founded Top Hat Chimney in 1999, and he still answers the phone. That’s not a slogan. People in Nesconset call, and a live person picks up, twenty-four hours a day, seven days a week. It may well be Wendell. That’s the difference between a local owner-operator and a national outfit that rotates crews through the region.
Every job we do in Nesconset is covered by our 90-Day Done Right Promise, in writing. If the cap leaks, the crown coating fails, or the flashing isn’t right, one call brings us back at no charge. We publish our name, our license number, and our work. We also stock parts locally for Nesconset jobs. That means when we find a cracked crown or a missing cap on a two-flue colonial off Gibbs Pond Road, we’re not telling you to wait a week for a part to ship.
We’ve worked enough chimneys in Nesconset to know the exact failure patterns. Split-levels with dormant oil flues. Capes with original crowns that have turned to sand. Colonials where someone installed a wood insert and never capped the unused adjacent flue. Ask anyone on your street. Wendell has probably been in their chimney.
Our Chimney Cap & Crown Services in Nesconset
Cap Installation
A correctly installed cap keeps rain, snow, birds, squirrels, and leaves out of the flue. In Nesconset, where many homes still have uncapped or under-capped flues from the original oil era, cap installation is the single most common job we do. We size the cap to the flue, secure it properly, and use stainless steel or copper hardware rated for Long Island’s coastal air. A cheap galvanized cap off a shelf rots in three years. We don’t install those.
Cap Replacement
Rusted, dented, or blown-off caps are a regular sight after a winter of nor’easters and freeze-thaw swings. If you’re in a neighborhood like The Pines or along Southern Boulevard, you’ve likely seen caps that are more rust than steel. We replace them with correctly sized multi-flue or single-flue caps from Famco, Copperfield, or Olympia Chimney. Then we photograph the new installation so you can see exactly what’s up there.
Crown Repair
The crown is the concrete or mortar wash that seals the top of the chimney around the flue. In Nesconset, original crowns on 1950s and 1960s homes are almost always poured from a standard mortar mix that was never meant to handle decades of rain, snow, and repeated freezing. Once hairline cracks form, each winter cycle pries them wider. We repair crowns by removing loose material, rebuilding the wash with the right slope, and sealing it so water runs off instead of in.
Crown Coating
For crowns that are still structurally sound but showing hairline cracking and surface erosion, we apply a flexible crown coating. On Nesconset homes we typically use Gelco crown coating because it handles Long Island’s freeze-thaw swings without cracking. The coating bridges fine gaps, seals the surface, and gives a crown years of added service before major repair is needed. If the crown is too far gone, we’ll tell you that plainly. You don’t pay for coating on a crown that needs rebuilding.
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.
Trusted Brands We Service in Nesconset
We install and service caps, dampers, and crown products from manufacturers we know hold up here. Famco, Olympia Chimney, and Copperfield make stainless and copper caps that stand up to salted air, heavy rain, and sub-freezing January nights. When a Nesconset customer needs a specific multi-flue cap or a custom-size replacement, we source it directly and keep common sizes on hand. You don’t wait on a distributor halfway across the country, and you get a brand with a warranty backed by the manufacturer, not a mystery generic part.
Common Chimney Cap & Crown Problems We See in Nesconset Homes
- Uncapped dormant oil flues. After an oil-to-gas conversion, the old boiler flue often gets abandoned. No cap goes on. Rain pours down, freezes, cracks the clay tiles, and sends pieces into the smoke chamber. We see this almost weekly in Nesconset’s post-WWII tract homes.
- Eroding original mortar crowns. Mid-century chimneys were crowned with a basic mortar mix. Nesconset’s winters hover right around 32°F, so water freezes and thaws inside the crown’s pores repeatedly. The crown crumbles. Water runs behind the flashing and into the chase.
- Wood inserts vented through oil-era chimneys without capping the unused flue. Homeowners add a wood-burning insert to one flue and ignore the second. The unused side deteriorates unseen. Moisture collects. Animals nest. The active side vents a fire while the inactive side quietly falls apart.
- Rusted-out single-flue caps on original fireplaces. The fireplace flue got a cheap cap years ago. Salt air and weather did the rest. A rusted cap lets rain through, and the screws holding it corrode until the cap itself becomes a hazard in high wind.
Pricing for Chimney Cap & Crown in Nesconset, NY
A standard single-flue cap installation on a Nesconset home typically runs $175 to $325, including the cap and labor. A multi-flue cap, common on two-flue oil-era chimneys, runs $400 to $700 depending on the span and the cap material. Crown coating runs $350 to $650 for an average mid-century chimney. A full crown rebuild, where the old crown is removed and repoured, runs $900 to $1,600. If the crown has failed badly enough that water reached the liner, that’s where costs climb, and that’s exactly why we show you camera footage before recommending liner work. You don’t pay for a liner you can’t verify. Every Nesconset estimate is free, and we give you the number before a tool comes off the truck.
One more thing worth knowing: we give seniors and veterans 10% off, always. And any repair over $200 takes $40 off with our standing offer. Call (934) 935-3847 for a specific price.
We Also Serve Cities Near Nesconset
If you’re outside Nesconset proper, we regularly work in Hauppauge, Islandia, Central Islip, and Islip Terrace. The housing stock and chimney issues are often identical. For all of Long Island’s mid-century oil-era homes, our Nesconset team brings the same 90-Day Done Right Promise and the same camera-first approach to every job.
Serving Nesconset, NY - Our Local Coverage Area
We’re based in the Nesconset 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 Nesconset
Because that flue is still open to the sky, and water does not care whether you burn fires. In a typical Nesconset two-flue chimney, the unused flue is often the old oil-boiler flue. It may have sat dormant for years. Without a cap, rain runs down it, freezes, cracks the terracotta tiles, and eventually leaks into your walls or basement. Capping it is cheap insurance compared to a liner job. Call (934) 935-3847 and we’ll check both flues for free.
Most cracks that matter are not visible from the ground. You’ll see the signs indirectly: water stains on the ceiling near the chimney, efflorescence (white chalky residue) on the brick, crumbling mortar in the firebox, or dampness in the attic. We bring a camera up and take photos of the crown surface. If it’s cracked, you’ll see it in the images. That’s the standard every Nesconset homeowner should demand before agreeing to crown work.
Yes, but not the same way you’d cap a fireplace flue. The flue needs a cap that allows proper drafting while keeping rain and animals out. We size the cap and secure it so the appliance still vents correctly. If the boiler is still in service, we never seal the flue off. If it’s been disconnected, we’ll cap it properly so the chimney stops taking on water. The camera footage will show you what’s actually going on up there before we do anything.
Small cracks get wider. Nesconset freezes and thaws dozens of times each winter, and every cycle works water deeper into the crown. What was a $450 coating job can become a $1,200 crown rebuild in two or three seasons. If water reaches the flue tiles, you’re looking at liner questions too. We’d rather coat a crown that just needs it than rebuild one that’s gone. Call (934) 935-3847 for an honest look.
For most two-flue chimneys in Nesconset, a multi-flue cap is the better choice. It covers both flues under one lid, brackets onto the crown rather than clamping to individual flue tiles, and stands up better to wind and ice. Two single-flue caps work fine on chimneys where the flues are far apart or different heights, but they’re more prone to wind damage and harder to keep sealed. We’ll help you decide based on your actual flue layout, not a catalog.
If you’re in Nesconset and your chimney cap or crown needs attention, call us at (934) 935-3847. We’ll schedule the visit, show up when we say we will, and show you the camera footage before we quote a dollar. Free estimates, written prices before work begins, and a 90-Day Done Right Promise on every job we complete.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Nesconset since 1999.