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 Liner & Rebuild Across Islandia
If your Islandia home was built between the 1950s and 1970s, odds are the chimney was sized for an oil burner, not the gas appliance now connected to it. That mismatch degrades clay-tile liners from the inside out, and we see the damage every week in Islandia’s cape cods, ranches, and split-levels across the Long Island Expressway corridor. Wendell Pike and his crew replace and rebuild more liners in Islandia than in most surrounding towns because the housing stock here simply demands it. Call (934) 935-3847 for a straight answer and a free estimate before winter sets in.
Why Top Hat Chimney Is Islandia’s Preferred Chimney Liner & Rebuild Company
Wendell founded Top Hat Chimney in 1999 and has kept it owner-operated ever since. That matters in Islandia, where a lot of homeowners have already paid a national outfit to send a stranger who quoted one price on the phone and another at the door. Wendell puts his name and license number on the work, and you’ll run into him again at the deli on Veterans Memorial Highway. The 90-Day Done Right Promise is in writing on every job: if it isn’t right, one call brings him back at no charge.
We answer the phone with a live person, all day and all night. When an Islandia customer calls about a cracked liner or a spalling crown on a house off Old Nichols Road, Wendell picks up the phone himself more often than not. You get the real arrival window, the name of the sweep who shows up, and the same price you were quoted before a tool came off the truck. No call center, no bait-and-switch.
And because we’ve worked Islandia’s housing stock for decades, we know what to look for before we even climb the ladder. A 1968 split-level near Connetquot Avenue isn’t the same animal as a new build in Hauppauge. Islandia’s oil-to-gas conversion history rewrites the rulebook on what a chimney needs.
Our Chimney Liner & Rebuild Services in Islandia
Stainless Steel Liner
A stainless steel liner is the fix for most Islandia chimneys connected to a gas appliance. The original clay tile was sized for oil exhaust, which runs hotter and moves more volume. Gas exhaust runs cooler and condenses as acidic moisture that eats mortar joints and eventually the brick itself. We install stainless liners from DuraFlex and Olympia Chimney, sized correctly for the appliance actually burning in your home today, not the oil burner that was there in 1972.
Flexible Liner
For Islandia chimneys with offsets or tight turns behind the walls, a flexible liner can snake around the bends that a rigid pipe can’t. We’ve used these in mid-century ranches throughout Islandia where the flue path isn’t a straight shot. When we pulled a failed clay-tile liner from a 1971 cape that had just switched to gas heat, the burner flue was still coated in third-degree creosote and tar glaze from its oil days, while the fireplace flue showed spalling at every mortar joint. We relined the active gas flue with a DuraFlex stainless steel liner and sealed the abandoned oil flue, then finished with a new chimney crown and flashing.
Liner Replacement
The single most common job we do in Islandia is replacing a clay-tile liner that’s cracked or deteriorating. The freeze-thaw cycles that follow late-fall nor’easters push water into hairline cracks in the crown, and once moisture gets behind the tile, the next hard freeze widens the damage. Homeowners often discover the problem only when we run a camera down the flue during a routine cleaning. If you’ve already converted from oil to gas, the replacement is rarely optional: an oversized clay flue plus acidic gas exhaust equals erosion from the inside out.
Partial Rebuild
When the damage hasn’t reached the full height of the chimney but the top courses of brick are spalling or the crown has crumbled, a partial rebuild makes sense. In Islandia, we commonly rebuild the top two to four feet of a chimney on ranches and capes where salt-laden air from the Great South Bay has accelerated mortar erosion even though the home sits well inland. We replace the damaged brick, pour a proper concrete crown with a drip edge, and flash the chase correctly so water stops working its way down.
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 Islandia
We install and service liners from DuraFlex, Olympia Chimney, and Copperfield, and we stock the parts Islandia jobs actually need, which means less waiting when your liner is compromised in October and the first cold snap is two weeks out. If you have an existing liner from Famco or another manufacturer, we service that too. Our Chimney Liner & Rebuild team works with these systems daily and will tell you straight if a liner can be patched or needs full replacement.
Common Chimney Liner & Rebuild Problems We See in Islandia Homes
- Oversized clay-tile flues after oil-to-gas conversion: The original tile was built for oil exhaust, and when gas replaces the burner, the flue is too big. Cooler gas exhaust condenses as acidic water that dissolves the mortar between the tiles, eventually leaking into the walls and attic.
- Abandoned oil flues still loaded with creosote: In Islandia’s dual-flue chimneys from the 1960s and 1970s, one flue served the oil burner and the other the fireplace. When the oil burner goes away, the soot and tar glaze left behind off-gases and stains the brick, even though nothing burns there anymore.
- Spalling brick and crumbled crowns from salt air and freeze-thaw: Islandia sits inland from the Great South Bay, but salt-laden air still reaches central Suffolk County and accelerates mortar erosion. The nor’easters that hit Long Island in late fall and winter drive moisture into every crack, and repeated freeze-thaw cycles turn surface damage into structural failure between annual cleanings.
- Dual-flue chimneys with one flue improperly transitioned: We routinely find burner flues in Islandia that were abandoned or slammed together during an HVAC conversion, with residual oil soot still lining the tile. The homeowner assumes the conversion addressed the chimney. It didn’t.
Pricing for Chimney Liner & Rebuild in Islandia, NY
A stainless steel liner replacement in Islandia typically runs $1,300 to $3,200, depending on the height of the chimney and whether we’re working with one flue or two. A partial rebuild, including new brick at the top, a poured crown, and flashing, usually falls between $900 and $2,800. If both flues need relining in a 1960s dual-flue chimney, expect the upper end of that range, sometimes slightly more. Liner repair for a small crack or a deteriorated top tile can be done for $400 to $900 when we catch it before water has spread the damage. Freeze-thaw cracks left alone turn a $500 repair into a $3,000 rebuild. We price every job before work begins, the number you hear is the number on the invoice, and estimates are free. Call (934) 935-3847 and we’ll schedule a camera inspection so you can see exactly what you’re paying for.
We Also Serve Cities Near Islandia
Top Hat Chimney covers Islandia and the surrounding Suffolk County communities, including Hauppauge, Central Islip, Nesconset, and Islip Terrace. If your home sits in one of those nearby towns, we bring the same upfront pricing and 90-Day Done Right Promise to your door. Whether you’re in Islandia proper or just over the town line, Chimney Liner & Rebuild in Islandia is a call away.
Serving Islandia, NY - Our Local Coverage Area
We’re based in the Islandia 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 Liner & Rebuild in Islandia
Yes, in almost every case. The clay tile liner in an Islandia home was sized for oil exhaust, which is hotter and moves more volume. Gas exhaust is cooler and condenses inside the flue as acidic water, which eats the mortar between the tiles even when the tile surface looks intact. The damage happens from the inside out, so visual inspection isn’t enough. Call (934) 935-3847 for a camera inspection that shows you exactly what’s happening inside your flue.
Seal it. An abandoned oil flue in a dual-flue Islandia chimney still holds a third-degree creosote tar glaze that off-gases and stains the brick, and it becomes a highway for moisture. We cap the top, seal the thimble at the base, and then make sure the active flue is lined correctly for the appliance now using it. Leaving an abandoned flue open is how freeze-thaw damage accelerates from a cosmetic problem to a rebuild.
Depends on where the crack is and how far it runs. A single cracked tile at the top, near the crown, can sometimes be replaced or repaired in the $400 to $900 range. Cracks running through multiple courses, or tiles that have shifted out of alignment, almost always need full relining. We’ll show you the camera footage and let you make the call with your own eyes. Estimates are free.
It does. Islandia sits inland from the Great South Bay and Atlantic coast, but salt-laden air still reaches central Suffolk County and settles into mortar joints. Salt absorbs and holds moisture, and when the nor’easters hit in late fall, the water gets pushed deeper into the brick. Repeated freeze-thaw cycles then pop the face off the brick and crumble the crown. It’s not dramatic. It’s just what happens here.
Every six months if the wood stove is your primary heat source. A wood stove burning all winter in a rural Islandia property loads creosote far faster than an occasional fireplace in a suburban living room, and the safe sweeping interval is shorter. If you burn green or unseasoned wood, check it every four months. Wendell will tell you what your flue actually looks like and whether you can push the next cleaning out. Call (934) 935-3847 to schedule.
Call Top Hat Chimney for Liner and Rebuild Work in Islandia
If your Islandia chimney still has its original clay-tile liner and you’ve converted from oil to gas, don’t wait for the first hard freeze of November. The problem is already working. Call (934) 935-3847 for a free estimate and a camera inspection, and we’ll show you exactly what’s inside your flue before any work begins. No scare tactics, no inflated numbers. Just the straight word from a local sweep who keeps running into you on Veterans Memorial Highway.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Islandia since 1999.