Fast, Reliable Chimney Liner & Rebuild Across Park Slope
A stainless steel chimney liner installed in a Park Slope brownstone typically costs $2,800-$4,500, while a partial chimney rebuild runs $4,200-$7,800 depending on height and access. Most liner replacements and partial rebuilds in Park Slope are completed in a single day. Call (855) 950-3861 - a live person answers, 24 hours a day.
We’ve been working on chimneys in Park Slope since 1984. We know the 3-story Romanesque Revival brownstones along Prospect Park West, the Queen Anne rows near Grand Army Plaza, and the converted co-ops tucked between 7th and 8th Avenues. These aren’t generic buildings - they’re 100-plus-year-old structures with party-wall chimneys, multiple original fireplaces per building, and flue configurations altered by decades of conversions. When a Park Slope homeowner calls us, we’re usually on-site within the hour. Our trucks carry DuraFlex and HeatShield materials so we’re not waiting on parts while Brooklyn’s freeze-thaw cycles keep doing damage.
Why Hearthstone Chimney Co. of New York City Is Park Slope’s Preferred Chimney Liner & Rebuild Company
We’ve served New York City homeowners for over 42 years, and Park Slope has been central to our work from the start. The neighborhood’s brownstone renovation wave - owners reopening fireplaces sealed during mid-century gas conversions - means we’re inspecting and relining more Park Slope chimneys now than at any point in the last two decades.
Our technicians are background-checked, uniformed, and trained to document every inspection with photos and a plain-English verdict. Park Slope customers receive the same Level-2 camera inspection we’d want in our own homes - no guesswork, no pressure, just facts they can see. The 90-Day Done Right Promise backs every job in writing: if it’s not right, we come back. No paperwork, no arguing.
Response time to Park Slope averages under 60 minutes during business hours. We understand that a blocked flue or cracked liner in a shared party-wall chimney isn’t just your problem - it affects your neighbor’s unit, your co-op board, and your insurance. We treat it accordingly.
Our Chimney Liner & Rebuild Services in Park Slope
Stainless Steel Liner Installation
For most Park Slope brownstones with intact but unlined or deteriorated clay flues, a stainless steel liner is the right fix. We install rigid or flexible DuraFlex liners sized precisely to your appliance - wood-burning fireplace, gas insert, or oil-fired boiler. In Park Slope’s pre-1910 chimneys, the original clay flue liners were often single-wythe and uninsulated, meaning they crack and separate under freeze-thaw cycles faster than modern double-walled systems, and retrofitting with a stainless steel liner is rarely a straight pull - the flue path may have offset tiles from old chimney modifications that require sectional flexible liner installation. We assess the full flue path with our camera before quoting, so you know exactly what the job entails.
Flexible Liner Installation
Flexible liners are essential for Park Slope chimneys with offset flues, chimney bends, or obstructions from past conversions. Mid-century gas conversions often left behind steel plates or rubble inside the flue, making a straight liner pull impossible. We took on a liner replacement at a landmarked Park Slope row house on 8th Street where the original clay liners had collapsed from decades of freeze-thaw and a mid-century gas conversion had left a jumble of parging and steel plates blocking the flue. We removed the obstructing debris, installed a continuous 7-inch DuraFlex flexible liner through the party-wall chimney, and sealed the crown - restoring draft to the owner’s newly reopened fireplace in time for the heating season without compromising the neighbor’s adjacent flue.
Liner Replacement
When a clay liner has shattered or a previous metal liner has corroded through, full replacement is the only safe option. In Park Slope, we see this constantly: original clay liners from 1880-1910 shatter from Brooklyn’s freeze-thaw cycles, causing fallen debris to block the flue or contaminate adjacent units’ flues in shared party-wall chimneys. Each building commonly has multiple original fireplaces sharing a single interior masonry chimney with stacked flues - meaning we’re often servicing 3-5 flues per job, and a defect in one flue can compromise adjacent ones. We replace the liner, inspect the surrounding masonry, and document condition for co-op and condo boards who need records for their reserve studies.
Partial Chimney Rebuild
Sometimes the liner isn’t the only problem. Crumbling lime mortar joints in the brick stack allow moisture and creosote to seep between stacked flues in multi-flue chimneys, leading to fire spread risk across units without a full reline. When the smoke shelf, firebox, or upper brick courses are deteriorated, a partial rebuild restores structural integrity while preserving original character - critical for landmarked properties in Park Slope’s historic districts. We match existing brick and mortar where possible, and we never recommend more work than the chimney actually needs.
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 Park Slope
We work exclusively with professional-grade materials from DuraFlex, HeatShield, Gelco, and Copperfield - no builder-grade substitutes that fail in Brooklyn’s climate. Our trucks stock the most common liner diameters and flexible configurations, so Park Slope jobs aren’t delayed waiting on parts. HeatShield’s cerfractory resurfacing compound sees heavy use here for smoke chamber parging in older flues where full liner replacement isn’t necessary. DuraFlex flexible liners handle the offset flues we encounter in converted Park Slope brownstones. When we specify a material, it’s because we’ve installed it on a hundred Park Slope chimneys and it holds up.
Common Chimney Liner & Rebuild Problems We See in Park Slope Homes
- Shattered original clay liners. The single-wyhe clay liners installed in 1880-1910 Park Slope brownstones weren’t built for Brooklyn’s repeated freeze-thaw cycles. They crack, spall, and collapse, sending debris down the flue that blocks draft or falls into the firebox.
- Obstructed flues from mid-century conversions. Gas conversions in the 1950s-70s often involved blocking flues with rubble, steel plates, or improper parging. Reopening these fireplaces for wood or modern gas requires clearing the obstruction and installing a proper liner - rarely a straight pull.
- Crumbling mortar joints between stacked flues. In Park Slope’s multi-flue party-wall chimneys, deteriorated lime mortar allows creosote and moisture migration between flues. This creates fire spread risk across units and violates NYC fire separation requirements.
- Freeze-thaw damage to chimney crowns and caps. Brooklyn’s winter temperatures cross 32°F repeatedly, accelerating spalling of soft Triassic brownstone and eroding mortar faster than in stable climates. A compromised crown lets water into the flue system, accelerating liner failure.
Pricing for Chimney Liner & Rebuild in Park Slope, NY
| Service | Typical Range in Park Slope |
|---|---|
| Stainless steel liner installation (single flue) | $2,800 - $4,500 |
| Flexible liner installation (offset/obstructed flue) | $3,200 - $5,200 |
| Liner replacement with debris removal | $3,500 - $5,800 |
| Partial chimney rebuild (upper courses + crown) | $4,200 - $7,800 |
| Full chimney rebuild (rare in Park Slope) | $8,500 - $15,000 |
| Smoke chamber parging (HeatShield) | $1,800 - $3,200 |
What moves the number: height of the chimney, number of flues, degree of obstruction from past conversions, access (scaffold vs. interior), and whether the job is in a landmark district requiring LPC notification. We provide no-hassle upfront pricing - the number on the estimate is the number on the invoice. Estimates are free. Seniors and veterans receive a permanent 5% discount. Call (855) 950-3861 for exact pricing on your chimney.
We Also Serve Cities Near Park Slope
Our Chimney Liner & Rebuild in Park Slope team regularly travels to neighboring Brooklyn communities. We handle chimney liner and rebuild work in Brooklyn at large, Kensington to the southeast, Brooklyn Heights to the west, and Flatbush to the east. The same live-answer phone, same 90-Day Done Right Promise, same documented inspections. If you’re unsure whether we cover your block, call and ask - a real person will tell you straight.
Serving Park Slope, NY - Our Local Coverage Area
We’re based in the Park Slope 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 Park Slope
No. Each flue is evaluated and serviced independently based on its condition and the appliance it serves. We document the condition of all flues with photos, but we only recommend work on flues that actually need it. In Park Slope’s co-op and condo-heavy ownership landscape, per-unit disclosure and documentation is especially important - we provide written reports for each flue inspected. Call (855) 950-3861 to schedule a Level-2 inspection; estimates are free.
Sometimes, but rarely in Park Slope’s oldest chimneys. The original clay tiles are often too deteriorated to serve as a host - cracked, shifted, or partially collapsed from freeze-thaw damage. We camera-inspect first. If the clay is intact and properly sized, we may use a flexible liner inside it. More commonly, we remove damaged clay and install a new flexible liner directly in the masonry flue. The only way to know is to look. Call for a camera inspection.
Yes. NYC DOB and FDNY solid-fuel appliance regulations require permits for chimney liner installation and any structural rebuild work. We handle permit filing as part of our standard process - homeowners don’t navigate DOB paperwork alone. For properties in Park Slope’s historic districts, LPC notification may also be required for exterior work above the roofline. We manage this coordination. The permit is included in our upfront quote, not added as a surprise.
A crumbling smoke shelf requires repair before any liner installation - a liner alone won’t fix structural deterioration. We typically resurface with HeatShield cerfractory compound ($1,800-$3,200) if the damage is limited to the smoke chamber. If the damage extends to supporting masonry or the firebox walls, a partial rebuild of those components is necessary. We camera-inspect and photograph the full smoke chamber to determine which approach is right. Call (855) 950-3861 for an exact assessment.
We camera-inspect the party wall before and after installation, and we use installation techniques that protect adjacent flues - proper sizing, controlled debris management, and careful routing of flexible liners through the correct flue passage. In Park Slope rowhouses, the chimney is almost always a shared party-wall structure abutting the neighbor’s flues; a collapsed flue tile or heavy creosote buildup on one side can block or contaminate an adjacent unit’s flue. We document pre-existing conditions in writing so there’s no dispute later. This documentation is especially valuable for co-op and condo owners. Call to discuss your specific building configuration.
Ready to get your Park Slope chimney liner or rebuild done right? Call (855) 950-3861 now. A live person answers 24 hours a day, 7 days a week. We’ll schedule your free estimate, perform a documented camera inspection, and give you upfront pricing with no surprises on the bill. The 90-Day Done Right Promise backs every job in writing. We’ve been serving New York City homeowners since 1984, and we’ll be here when you need us next.
Written by Frank Calucci, Owner at Hearthstone Chimney Co., serving Park Slope and New York City since 1984.