Chimney liner installation in Brooklyn Heights starts at $3,000, including labor and materials. Most rowhouses here went up around 1899–1900 with bare-brick flues — no liner at all — and a century of coal, oil, and gas has left those flue walls spalled, porous, and often breached. A correctly sized stainless-steel liner gives the flue a new, sealed interior built for the appliance it actually serves.
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Chimneys in Brooklyn Heights: what the building stock tells us
ZIPs 11201 and 11231 hold roughly 8,200 tax lots, and the median year built of around 1899–1900 makes this the oldest housing stock of any neighborhood in this phase. The dominant building classes — C0 three-family walk-ups, A4 one-family attached rowhouses, C1 walk-up apartments, C3 larger walk-ups, B9 miscellaneous residential — share a construction detail that defines every liner job here: the flues were built before liners were standard practice. What vents your boiler or fireplace today is, in most of these buildings, the original brick.
For liner work, that unlined history is the whole story. A flue that carried a coal furnace in 1905, an oil burner in 1960, and a gas boiler in 2010 has interior walls saturated with a century of combustion byproducts. Mortar joints inside the flue erode, brick faces spall, and gaps open between the flue and the living spaces it passes — in a median three-story rowhouse, that’s three floors of wall the exhaust travels past. 311 logged 13 smoke and chimney complaints (“Air: Smoke, Chimney or vent”) across these ZIPs in the last 12 months.
Citywide, DOB records mention chimney in 869 violations, with Brooklyn carrying 370 active V-DOB chimney violations against Manhattan’s 186. DOB lists no per-neighborhood chimney violation count for Brooklyn Heights specifically (the dataset has no ZIP field). And the Brooklyn Heights Historic District — designated in 1965 as New York City’s first historic district — means exterior chimney work on landmarked rowhouses is subject to LPC review. A liner, notably, is interior work: it changes nothing visible from the street.
The Brooklyn Heights signature problem: landmark stacks that can’t be ignored
The signature problem is the unlined flue that owners assume is “original and therefore fine.” The neighborhood’s tall, narrow, highly visible brick stacks define the streetscape, and the deferral logic runs: it’s landmarked, so we can’t touch it — meanwhile the inside of the flue, which no landmark designation protects from physics, deteriorates for decades. Freeze-thaw cycles work the exterior; condensation and acidic combustion byproducts work the interior. By the time anyone looks, the flue is often a brick shell with no reliable venting surface left.
A stainless-steel liner is the fix that respects both the building and the landmark. It installs inside the existing flue — no exterior alteration, no change to the streetscape, nothing for the LPC to object to. Chimney liner installation in Brooklyn Heights starts at $3,000, and for a boiler flue it’s frequently the difference between a safe vent and a condemned one: the liner is sized to the boiler it serves, so draft is correct, condensation is controlled, and carbon monoxide has one sealed path out of the building.
The boiler angle is decisive here. Most of these rowhouses heat with a boiler venting into a flue sized for an appliance from another era. An oversized, unlined flue over-cools the exhaust, draft collapses, and the boiler spills combustion products back into the basement. A correctly sized liner restores the flue-to-appliance match the original builders never had to think about — because their coal furnace drafted anything.
What our chimney liner installation visit looks like in Brooklyn Heights
Henry, Hicks, and Pierrepont are narrow one-way streets with limited parking for a service vehicle carrying liner sections, so we plan staging and arrival before the job day. Rowhouse roofs are reached through interior scuttles — our crews are used to working through them, and most of the installation happens from the roof down with minimal interior disruption. Many buildings here have elderly residents; we keep the workday compact and the site contained.
A standard job starts with a Level 2 camera inspection to map the flue’s interior condition and confirm sizing, then the stainless-steel liner is installed, insulated where the flue geometry requires it, and terminated with a proper cap connection at the top and a sealed thimble connection at the boiler or firebox. We verify draft on completion. Because the work is interior to the flue, the stack looks exactly the same from Montague Street or the Promenade as it did that morning.
Waterfront wind factors into the termination. Promenade exposure drives downdraft on western blocks, so we pay attention to flue height above the roofline and cap selection as part of the liner termination — a liner that drafts perfectly on paper still has to beat the wind off the water.
Before you install a new boiler in Brooklyn Heights
If a new boiler is in your plans, the liner decision comes first, not after. A new high-efficiency boiler venting into an oversized, unlined 1899 flue will condense inside the chimney, corrode what liner exists, and draft poorly from day one. The correct sequence is: inspect the flue, size the liner to the new boiler, install the liner, then install the boiler into a vent that was built for it. Flue sizing, liner condition, draft, and appliance matching all have to be verified before the install. Read the full breakdown: chimney inspection before installing a new boiler.
Frequently asked questions
My rowhouse flue is unlined — how common is that in 1899-era stock?
Very. Liners weren’t standard practice when these rowhouses were built, so bare-brick flues are the norm across Brooklyn Heights, not the exception. A stainless-steel liner gives that flue a sealed, modern interior.
Does installing a liner in a landmarked rowhouse need LPC approval?
A liner is interior work — it changes nothing visible from the street, so it typically doesn’t trigger LPC review. Exterior stack work on landmarked rowhouses is subject to LPC review; the liner itself isn’t exterior work.
The boiler seems oversized for the flue — can a liner fix the draft problems?
Often yes. An oversized flue over-cools exhaust and kills draft; a liner sized to the boiler restores the correct flue-to-appliance match, which is the most common draft fix in these rowhouses.
How long does liner installation take in a rowhouse with only scuttle access?
Most rowhouse liner jobs are completed in a single workday. Scuttle access is standard for us — the equipment is sized for it — and we keep interior disruption to the boiler or firebox connection point.
Will the new liner change how the stack looks from the street?
No. The liner lives inside the existing flue; from the sidewalk, the Promenade, or across the street, the stack looks exactly as it did. The streetscape the landmark district protects is untouched.
See our chimney services in Brooklyn Heights and Brooklyn chimney services. Not sure your flue needs a liner? Take the chimney liner quiz.
Chimney liner installation in Brooklyn Heights starts at $3,000, including labor and materials. Licensed and insured, 25 years of experience. Call (347) 297-9646 or WhatsApp (WhatsApp us).
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