Fast, Reliable Chimney Liner & Rebuild Across Long Island City
Chimney liner installation and rebuild in Long Island City typically costs $2,800-$7,500 depending on whether you’re relining an existing flue or rebuilding from the crown down, and most jobs are completed in a single visit with a NYC DOB permit pulled on your behalf. We’re Hearthstone Chimney Co., and we’ve been working on the chimneys of Long Island City since 1984. From the 1890s brick rowhouses along 45th Road in Hunters Point to the converted industrial lofts near the Queensboro Bridge, we know the specific failure patterns that East River salt air and century-old coal-to-gas conversions create in this market. Our Chimney Liner & Rebuild team carries DuraFlex, HeatShield, and Gelco materials on every truck, so we’re not waiting on parts while your boiler sits red-tagged. Call (855) 950-3861 - a live person answers, 24 hours a day.
Why Hearthstone Chimney Co. of New York City Is Long Island City’s Preferred Chimney Liner & Rebuild Company
We’ve worked in Long Island City for over 42 years. That means we’ve relined flues in the same Hunters Point rowhouses three times over as ownership changed, and we’ve rebuilt chimney crowns on Vernon Boulevard loft conversions that were still manufacturing buildings when we started. Our technicians are background-checked, uniformed, and trained to document every inspection with photos you can see and a plain-English verdict you can understand.
Long Island City customers call us because we answer the phone. Not an app. Not a callback queue. A live person, every hour of every day. We show up when we say we will. We give you no-hassle upfront pricing - the number on the estimate is the number on the invoice. And every liner installation and rebuild is backed by our 90-Day Done Right Promise in writing: if it’s not right, we come back, no arguing, no paperwork chase.
Most jobs are completed in a single visit. We pull NYC DOB permits for liner installations as a standard part of the job, not an add-on. And we coordinate directly with Con Edison inspectors when a gas appliance inspection has flagged an unlined flue, which happens regularly in the 11101 and 11109 ZIP codes where original masonry chimneys were never retrofitted with proper liners after coal-to-gas conversions.
Our Chimney Liner & Rebuild Services in Long Island City
Stainless Steel Liner Installation
The stainless steel liner is the standard repair for Long Island City’s unlined legacy flues. We install DuraFlex stainless steel liners in most Hunters Point rowhouses where the original clay-tile-free masonry flue is too deteriorated to meet NYC DOB code but the surrounding brickwork is structurally sound. A typical stainless steel liner installation in Long Island City runs $2,800-$4,200 for a single-flue chimney in a standard rowhouse, including the DOB permit. The liner is sized precisely to your gas appliance’s BTU output, solving the draft problems that oversized 19th-century flues create. We pass the Con Edison inspection. You get heat.
Flexible Liner Inserts for Oversized Flues
Many 1905-1930 rowhouses in Long Island City have flue openings built for coal furnaces, now venting gas boilers that are a fraction of the size. An oversized flue causes condensation, acidic buildup, and eventually mortar failure. A flexible liner insert reduces the flue diameter to match the appliance, improving draft and preventing the moisture damage that salt air already accelerates. Flexible liner installations in Long Island City typically cost $2,200-$3,600. We handle the sizing calculations and the DOB filing. Most are done in one day.
Liner Replacement for Failed Installations
Not every liner job is a first installation. We replace failed or improperly sized liners in Long Island City regularly, often in converted loft buildings near Jackson Avenue where industrial stacks were repurposed for residential use without proper engineering. A liner replacement runs $3,200-$5,000 in this market, depending on access and whether the existing liner has collapsed or separated. We document the condition with our Level-2 camera inspection before we quote, so you see what we see.
Partial Rebuild and Full Chimney Rebuild
When East River moisture and freeze-thaw cycles have spalled brick or separated the crown from the mortar joint, a liner alone won’t solve the problem. We handled a Full Chimney Rebuild on a 1905 attached brick rowhouse on 45th Road in Hunters Point where the unlined flue had spalled so badly from salt-laden East River air that the crown had separated from the mortar joint. We replaced the flue with a DuraFlex stainless steel liner and rebuilt the upper three feet, bringing it up to NYC DOB code and passing Con Edison’s gas appliance inspection. Partial rebuilds in Long Island City typically range $4,500-$6,500; full rebuilds run $6,000-$10,500 depending on height and access. Both are backed by our 90-Day Done Right Promise.
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 Long Island City
We stock professional-grade materials from DuraFlex, HeatShield, and Gelco on every Long Island City truck. No builder-grade substitutes. No waiting on a parts run to New Jersey while your boiler sits cold. DuraFlex stainless steel liners carry a lifetime warranty when we install them. HeatShield cerfractory flue resurfacing handles the localized repairs where full relining isn’t necessary. Gelco caps and components finish the job with hardware that survives East River winters. We also work with Olympia Chimney, Famco, and Copperfield products when a specific application calls for them. The right material for your specific chimney, not whatever’s cheapest this week.
Common Chimney Liner & Rebuild Problems We See in Long Island City Homes
- Unlined original flues from coal-to-gas conversions fail Con Edison inspections. In the 11101 ZIP code especially, we get calls from homeowners who’ve received a stop-work order mid-heating season because their 1920s flue has no liner and no longer meets code. We install a stainless steel liner and coordinate the re-inspection.
- Salt air and humidity from the East River accelerate spalling and mortar joint erosion. LIC’s position directly on the water exposes masonry to conditions that inland Queens neighborhoods like Sunnyside simply don’t face. We see partial crown collapses in Hunters Point rowhouses that require rebuilding the upper chimney before any liner can be installed.
- Oversized flues from late-19th-century rowhouses cause poor draft and condensation. A flue built for a coal furnace is too large for a modern gas boiler. The resulting acidic condensation eats mortar from the inside out. A flexible liner insert is often the only way to make the chimney safe without a full rebuild.
- Converted industrial loft buildings have repurposed stacks never designed for residential heating. Near the Queensboro Bridge and along the waterfront, 2000s-era conversions frequently have chimneys that were ventilation stacks for manufacturing processes. We assess whether these can be safely lined or need structural modification.
Pricing for Chimney Liner & Rebuild in Long Island City, NY
Here’s what chimney liner and rebuild work costs in the Long Island City market:
| Stainless steel liner installation (single flue, standard rowhouse) | $2,800 - $4,200 |
| Flexible liner insert for oversized flue | $2,200 - $3,600 |
| Liner replacement (failed existing liner) | $3,200 - $5,000 |
| Partial chimney rebuild (crown and upper courses) | $4,500 - $6,500 |
| Full chimney rebuild (from roofline up) | $6,000 - $10,500 |
Factors that move the needle: access (scaffold vs. ladder), whether the existing flue has collapsed, and whether we need to coordinate with Con Edison or NYC DOB on a violation timeline. We provide no-hassle upfront pricing after our Level-2 camera inspection. The number on the estimate is the number on the invoice. Estimates are free. Call (855) 950-3861 to schedule.
We Also Serve Cities Near Long Island City
Our Chimney Liner & Rebuild in Long Island City crews also work in Greenpoint, Sunnyside, Gramercy Park, and Astoria. The same East River exposure that affects Long Island City chimneys hits Greenpoint and Astoria hard, while Sunnyside’s inland position creates different failure patterns. Wherever you’re located, we bring the same documentation, the same materials, and the same written guarantee.
Serving Long Island City, NY - Our Local Coverage Area
We’re based in the Long Island City 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 Long Island City
Yes. NYC DOB requires a permit and licensed contractor for any chimney liner installation in Long Island City, and we pull that permit as standard on every job. We handle the filing, the inspection scheduling, and the sign-off. You don’t need to visit the DOB office. Call (855) 950-3861 and we’ll walk you through the timeline.
Yes, and it happens frequently in Long Island City. Con Edison inspectors regularly flag unlined flues in 11101 and 11109, especially in pre-war rowhouses with original masonry chimneys. When they do, you’ll need a licensed chimney contractor to install a code-compliant liner and pass re-inspection before your gas service can be restored. We coordinate directly with Con Edison on these timelines. Call us at (855) 950-3861 - we can often inspect within 24 hours.
LIC’s position directly on the East River exposes masonry to elevated humidity and salt-laden air year-round, accelerating spalling and mortar joint erosion faster than in inland Queens neighborhoods. Freeze-thaw cycles in the narrow gaps between attached rowhouses also trap moisture against chimney crowns. Annual inspection before heating season is especially critical here. We’ve rebuilt more crowns in Hunters Point than in any other Long Island City neighborhood for exactly this reason.
Often, yes. If the surrounding brickwork and mortar joints are structurally sound, we can install a flexible liner insert that reduces the flue diameter to match your gas appliance’s BTU output. This solves the draft and condensation problems without the cost of a rebuild. We determine this with our Level-2 camera inspection - you’ll see the photos and get a plain-English verdict. A flexible liner insert in a Long Island City rowhouse typically runs $2,200-$3,600. Call (855) 950-3861 for a free estimate.
A partial rebuild addresses the crown and upper two to four feet of the chimney, which is where East River salt air and freeze-thaw damage typically concentrate in Long Island City’s attached rowhouses. A full rebuild removes and reconstructs from the roofline up, necessary when the flue has separated from the structure or multiple courses have spalled. Partial rebuilds run $4,500-$6,500; full rebuilds run $6,000-$10,500. We never recommend more work than the condition warrants. Our 90-Day Done Right Promise covers both.
Written by Frank Calucci, Owner at Hearthstone Chimney Co., serving Long Island City since 1984.