Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
Gas fireplace serviceLevel 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.
Fast, Reliable Fireplace Repair Across Brooklyn Heights
Fireplace repair in Brooklyn Heights comes down to knowing what the salt air does to a 150-year-old chimney. Most jobs we see here involve corroded caps, spalled crowns, dampers seized by moisture, and gas logs that won’t stay lit because the flue was never sized for them. Ashby Chimney New York has been doing this work since 2002, and we know the difference between a brownstone party-wall flue and a standalone house chimney. If your fireplace is acting up in Brooklyn Heights, call (315) 644-2982 and a live person will answer. We give you a written price before any work starts, and every repair carries a written guarantee.
Why Ashby Chimney New York Is Brooklyn Heights’s Preferred Fireplace Repair Company
Brooklyn Heights homeowners tend to be well-researched and rightly skeptical after past contractor experiences. A no-show, a price that doubles at the door, a liner that cracks again six weeks later. We hear those stories constantly. So we built our process around the opposite of that. Nathan Corliss runs our Brooklyn Heights fireplace work with a simple rule: say the price, show up in the window, leave it cleaner, put the guarantee in writing, come back if it fails. That’s the Kingswell Way, and it’s backed by the 365-Day Done Right Promise. If a covered repair fails within the guarantee period, we return and correct it at no charge. Free second visit. Written guarantee. Background-checked, uniformed technicians at your door. No voicemail loops, ever, since our phones are staffed by a live person 24 hours a day.
Styles & brands we work with





Gas Fireplace Installation in Brooklyn Heights
Gas Fireplace Installation in Brooklyn Heights usually means converting a drafty old wood-burning firebox into a sealed, efficient gas unit that actually heats the room instead of sucking warmth up the flue. We do this regularly in the Greek Revival and Italianate row houses along Hicks Street, Joralemon Street, and the blocks off Montague Street, where original fireplaces are beautiful but wildly inefficient. A straightforward gas insert or gas log installation in Brooklyn Heights typically runs $2,200 to $4,800 depending on the venting configuration, the gas line run, and whether the existing flue can take a liner. The Landmarks Preservation Commission review can add time, but our Fireplace Repair team has handled enough LPC applications to know exactly what the commission asks for before we touch the firebox.
Vent-Free Versus Direct-Vent In Brownstones
In the tight party-wall construction of Brooklyn Heights brownstones, vent-free gas logs often create moisture and odor problems because there’s simply not enough air exchange. We rarely recommend them here. Direct-vent inserts, which pull combustion air from outside through a coaxial pipe, work far better in the shallow fireboxes of 1850s and 1870s row houses.
Gas Line And Firebox Sizing For Older Flues
Older Brooklyn Heights flues were built for coal and wood, not sealed gas combustion. Before any installation we camera-inspect the flue and confirm the BTUs the existing liner can handle. We won’t install a gas unit in a flue that’s spalling or separated at the smoke chamber, because that’s how carbon monoxide accumulates in bedroom walls. The fix is usually a DuraFlex stainless liner sized to the new appliance, which adds $900 to $1,600 to the job.
Gas Fireplace Maintenance in Brooklyn Heights
Gas Fireplace Maintenance in Brooklyn Heights should happen every fall, before the first cold snap. These units sit dormant all summer and the coastal humidity gets into everything: thermocouples corrode, pilot assemblies clog with dust, burner ports get blocked. A standard maintenance visit in Brooklyn Heights costs $195 to $350 and includes cleaning the burner and pilot assembly, testing the thermopile, checking gas pressure, and inspecting the glass gasket. If we find a failing thermocouple or a cracked glass panel during that visit, materials and labor for most component swaps run $120 to $450, and the parts come from brands like Famco and Copperfield, which we stock locally for Brooklyn Heights jobs.
Pilot Light Checks On Salt-Air Appliances
Near the waterfront, the pilot assembly is usually the first thing to fail. Salt in the air speeds up oxidation on the pilot tube and thermocouple contacts, so a flame that flickers yellow instead of burning steady blue tells us the orifice needs cleaning or replacement. Catching that in October beats discovering a dead fireplace on the first 20-degree night in January.
Glass Gasket And Venting Reviews
The glass gasket on a direct-vent insert should be checked every maintenance visit. A dried, cracked gasket lets combustion air bypass the sealed box and can pull room air into the burn pattern. On Brooklyn Heights rooftops, we also check the vent termination for salt corrosion around the cap, which is the second most common gas fireplace failure we see after pilot issues.
Trusted Brands We Service in Brooklyn Heights
We service and install gas fireplaces and inserts from most major manufacturers, including units built around Olympia Chimney venting, Famco caps and dampers, and Copperfield components. For Brooklyn Heights customers we keep common replacement parts and liners on the truck, which means less waiting when a damper or pilot assembly needs swapping out. DuraFlex stainless liners are our standard for relining party-wall flues in older brownstones, because the salt air here destroys galvanized in under a decade.
Common Fireplace Repair Problems We See in Brooklyn Heights Homes
- Corroded galvanized chimney caps. Within five to seven years of salt exposure, galvanized caps pit through at the seams and start letting rain and snow fall straight down the flue. That water hits the smoke shelf and carries creosote residue into the firebox, staining the brick and feeding corrosion in the damper assembly.
- Spalled mortar crowns on party-wall chimney stacks. Brooklyn Heights freeze-thaw cycles are brutal on the shallow-pitch crowns of 1840s party-wall chimneys. Once the crown mortar starts spalling, water seeps between the flue tile and the brick, and you’ll see white efflorescence streaking the brick below the roofline.
- Sticky second-degree creosote in uncapped flues. When East River humidity meets a warm flue, first-degree creosote turns into a tacky, glazed deposit that narrows the draft and becomes much harder to remove. Shared party-wall flues make this worse, because the adjoined brownstone’s usage patterns influence the temperature and moisture inside your side of the breast.
- Seized dampers from moisture and disuse. On Pierrepont Street, Clark Street, and Remsen Street, we regularly see cast-iron dampers rusted solid because the fireplace went years without use and the humidity did its work. A seized damper can’t be forced open, but a replacement damper kit paired with a sealed cap usually solves the problem without touching the firebox masonry.
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We Also Serve Cities Near Brooklyn Heights
Most of our Brooklyn Heights jobs come from repeat customers and direct referrals, but we regularly send crews to the surrounding area. In New York, East New York, Manhattan, and Midtown Manhattan, we work on the same range of old masonry chimneys and gas fireplace conversions. Brooklyn Heights remains our anchor, and we schedule those appointments first in the week.
Serving Brooklyn Heights, NY - Our Local Coverage Area
We’re based in the Brooklyn Heights 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 About Fireplace Repair in Brooklyn Heights
Does living near the Brooklyn Heights waterfront change how often I need a chimney inspection?
Yes. If you live within a few blocks of the East River, in a house with an exposed chimney crown, we recommend an inspection at least twice a year, once in early spring and once in fall. The salt-laden air and humid coastal winters accelerate mortar spalling on crowns and pitting on metal caps and flashing, and problems progress noticeably faster here than in inland neighborhoods. An annual inspection that’s fine for a house in Carroll Gardens may leave a Hicks Street brownstone with a season of unnoticed water intrusion.
My brownstone has a shared party-wall chimney – can you repair just my side?
Yes, we can repair just your side of a shared party-wall chimney, and we do so regularly in Brooklyn Heights. The work requires coordinating access with your adjoining neighbor, because the flue liners are contiguous through the shared mass, and when we camera-inspect your side we’ll see the first few feet of theirs, too. LPC permits are usually needed for any exterior flashing or crown work on a landmarked row, and we’ll prepare that paperwork for you.
What is the first sign that salt air has damaged my chimney crown?
The first sign most Brooklyn Heights homeowners notice is a fine sandy grit washing down the roof or collecting in the gutter directly below the chimney. That grit is the crown’s surface mortar eroding under salt and freeze-thaw stress. Indoors, you might also see a faint white mineral streak on the firebox back wall after a heavy rain, which tells us water is already migrating down the flue.
Can I keep my original 1870s firebox and just upgrade the damper?
In most cases, yes. Victorian fireboxes in Brooklyn Heights row houses were built with heavy, dense brick that holds up well, and we can often repair the damper assembly and leave the original firebox masonry alone. If the firebox has deep heat spalling or fractured back wall brick, that changes the calculus. We’ll always show you the camera footage before recommending any masonry work, so you know exactly what you’re paying for.
Is stainless or galvanised better for a chimney cap in Brooklyn Heights?
Stainless. Always stainless here. Galvanized caps start pitting within five to seven years of street-level salt exposure in Brooklyn Heights, and a pitted cap is just a hole in your roof waiting for the next nor’easter rainfall. We install Olympia Chimney and Famco stainless caps rated for coastal environments, and we can fit a cheap replacement today instead of an emergency repair next spring.
Contact Ashby Chimney New York in Brooklyn Heights
If your fireplace has been acting up, or you just want an honest assessment of what the salt air has done to your chimney, call (315) 644-2982. We answer the phone. We’ll schedule a visit with a real arrival window, send a background-checked technician who knows Brooklyn Heights brownstones, and put the price in writing before any work starts. Nathan Corliss and the Ashby Chimney New York team serve Brooklyn Heights with the Kingswell Guarantee behind every repair: if it fails within the guarantee period, we come back free.
Written by Nathan Corliss, Owner at Ashby Chimney New York, serving Brooklyn Heights since 2002.