Masonry repair
Sweep & inspection
Caps & crownsLevel 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 Gas Fireplace Repair Across Tarrytown
Gas fireplace repair in Tarrytown typically runs $175 to $425 for common fixes like thermocouple replacement, pilot assembly repair, or valve adjustment, while flue liner work or damper replacement can push into the $850 to $1,800 range depending on what our camera inspection reveals. We get to Tarrytown fast, usually within one business day, because we know the housing stock here and we schedule our Hudson River routes to group jobs tightly. If your gas logs won’t stay lit, the pilot flame looks weak, or you smell gas near the firebox, call (914) 233-3156. We’ll walk you through basic safety checks over the phone, then send a background-checked tech who arrives in a tracked window with a written price before any work starts.
Here’s what matters for Tarrytown specifically: many gas fireplaces here are vented into chimneys built for coal or wood, not modern gas exhaust. That’s not a scare line. It’s what we see under camera on Neperan Road, near the Music Hall, around Lyndhurst. The old clay tile flues crack under gas-appliance heat cycling, and wind-driven rain off the Hudson soaks exposed brick year-round. Our Gas Fireplace Repair team shows you the video before recommending anything. No liner gets sold without footage of the damage. No damper gets replaced without you seeing the rust and the gap. That’s the only way we work in Tarrytown, and it’s why homeowners here trust us with chimneys their families have owned for generations.
Why Hadley Chimney Yonkers Is Tarrytown’s Preferred Gas Fireplace Repair Company
We’ve been in the chimney trade since 2003, and over two decades our techs have learned the specific ways Tarrytown’s older chimneys fail. A Victorian on Neperan Road doesn’t behave like a split-level off Broadway, and a fireplace vented through an unlined brick stack near the Music Hall needs a different diagnostic approach than one in a 1970s house with a modern B-vent. That local pattern recognition gets you to the real problem faster and keeps you from paying for repairs you don’t need.
Tarrytown customers mention the same things in their feedback: the tech showed up when the tracking link said he would, the before-and-after photos made the repair obvious, and the written price matched the final invoice. Cory Mitchell, who runs our operation, insists on that consistency. Every tech is background-checked and uniformed. Every call to (914) 233-3156 is answered by a live person, day or night, not a callback queue. And because we’re part of the Relay Home Co. family and operate under The Relay Visibility Guarantee, you get live arrival times, digital invoicing, and photo documentation on every visit, not just the big jobs.
Response time to Tarrytown is real. Dispatch and scheduling runs from our New York City office, and our crews work Hudson River routes several days each week, so we’re usually at your door within a day of your call. If your gas fireplace is showing signs of carbon monoxide backflow risk, tell the person who answers, and we’ll prioritize your visit.
Styles & brands we work with



Our Gas Fireplace Repair Services in Tarrytown
Video Camera Inspection Before Every Gas Fireplace Repair Quote
Nothing gets quoted until we run a camera down your flue. In Tarrytown’s pre-1940s homes, the original clay tile liners often show hidden mortar joint gaps, hairline cracks, or glaze buildup that you’d never spot from the firebox opening. We show you the video on the spot, point to exactly what we found, and explain in plain English whether it’s urgent, can wait, or doesn’t need touching. You never pay for a liner, cap, or damper based on a verbal scare claim. You see it first.

Gas Fireplace Damper Replacement and Top-Sealing Cap Installation
Wind-driven rain from the Hudson soaks unlined chimneys on steep streets east of Broadway, and we routinely pull rusted, seized dampers out of Tarrytown gas fireplaces. A partially closed Damper causes backdraft, which pushes exhaust back into the room and creates the intermittent shutdown pattern homeowners call us about. We replace the damper with a top-sealing model that keeps rain, birds, and downdrafts out when the fireplace isn’t running, and we install a proper cap sized for gas exhaust.

Flue Liner Evaluation and Installation for Gas Appliances
Gas fireplaces vented into flues built for wood or coal create condensation and acidic corrosion inside the chimney. That’s not a hypothetical in Tarrytown’s historic districts. It’s what our camera shows on Neperan Road, near Lyndhurst, along Broadway. If the liner is cracked, spalled, or missing sections, we’ll quote an Olympia Chimney or HeatShield solution sized for your specific gas appliance, with the written price in hand before any work begins.

Pilot Assembly, Thermocouple, and Valve Repair
The most common gas fireplace call we get in Tarrytown is a pilot that stays lit but the main burner won’t fire, or a fireplace that shuts off after 10 minutes. Usually it’s a failing thermopile, a dirty pilot orifice, or a valve that’s no longer holding millivolt signal. These are typically same-day fixes in the $175 to $425 range, and we carry the common repair parts on the truck so you aren’t waiting on a second visit.

What happens when you call
- 1
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 Tarrytown
We work on all major gas fireplace brands and install components from manufacturers chimney pros actually rely on. On Tarrytown jobs, we most often reach for Olympia Chimney liners and components, Gelco caps and dampers, and Famco parts when the original spec calls for them. We keep the common gas valve, thermopile, and pilot assembly parts stocked locally so most repair calls finish in one visit. If your fireplace is vent-free, direct vent, or uses a traditional chimney, tell us the make and model when you call and our tech will bring the right parts on the first trip.
See the difference
Before
After
Before
After
Before
AfterCommon Gas Fireplace Repair Problems We See in Tarrytown Homes
- Clay-tile flues cracking under gas heat cycling. Pre-1940s chimneys in Tarrytown were built for cooler wood and coal exhaust. Gas appliances heat-cycle those old tiles differently, and on unparged brick the cracks open up fast, letting moisture into the chimney crown and spalling the brick.
- Wind-driven rain soaking unlined chimneys. The prevailing westerlies off the Hudson push rain hard against chimneys on steep streets east of Broadway. We see rusted gas fireplace dampers and moisture pooling that creates third-degree creosote when neighbors in shared stacks burn wood.
- Missing or undersized caps allowing animal nesting. Birds and squirrels love Tarrytown’s uncapped flues. Nesting material blocks gas exhaust, which creates carbon monoxide backflow risk. This is a safety issue we treat as urgent.
- Weak exhaust on narrow flues near the Music Hall. Many older homes near the Music Hall have narrow flues originally sized for coal stoves. Modern gas fireplaces need proper draft, and when the flue is undersized or partially obstructed, exhaust stays low and moisture builds inside the stack.
Pricing for Gas Fireplace Repair in Tarrytown, NY
You deserve to see real numbers before you call. A standard service call and diagnostic in Tarrytown runs $89 to $129, and that fee is credited toward any repair we do the same visit. Thermocouple or thermopile replacement typically lands between $175 and $300. Pilot assembly rebuild or replacement: $225 to $425. Gas valve replacement: $350 to $650. Damper replacement with top-sealing model: $450 to $850. Flue liner evaluation with video camera: $150 to $250 for the inspection. If the camera shows you need a liner, full installation for a gas appliance typically runs $1,200 to $2,400 depending on flue height, accessibility, and whether the old clay tile needs removal. Every estimate is written, reviewed with you on site, and includes the 365-Day Done Right Promise: if the repair fails within a year, we come back free and make it right.
We Also Serve Cities Near Tarrytown
Our gas fireplace repair coverage extends through the Hudson River towns. We serve Dobbs Ferry, Tappan, Scarsdale, and Tuckahoe with the same written pricing, photo documentation, and live arrival tracking. If you’re just outside Tarrytown in any of those communities, call and we’ll get you on the schedule.
Serving Tarrytown, NY - Our Local Coverage Area
We’re based in the Tarrytown 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 – Gas Fireplace Repair in Tarrytown
Most likely a failing thermopile or a gas valve that’s no longer holding the millivolt signal needed to keep the burner open, but on Neperan Road specifically we also check for wind-driven downdraft issues that cause backdraft and tripped safety switches. We serviced a 1920s Colonial Revival on Neperan Road where the homeowner reported intermittent shutdowns. Our camera showed first-degree creosote glaze in the original clay flue and a damper stuck half-closed, which caused both backdraft and moisture pooling. We replaced the damper with a top-sealing model, installed an Olympia Chimney liner sized for gas, and verified draft with a smoke test, which solved the shutdowns and stopped the acidic flue damage. Call (914) 233-3156 for an exact diagnosis and a free estimate.
Yes, very common. Many Tarrytown Victorians near the Music Hall were built with narrow flues intended for coal or wood stoves, not modern gas exhaust. When a gas fireplace vents into an undersized flue, draft stays weak, exhaust hangs in the stack, and moisture condenses inside the brick. Our techs use flexible rods with small brush heads to clean and evaluate these narrow flues properly before making any repair recommendation.
Absolutely. Gas fireplaces still produce exhaust, moisture, and mild acidity, and in Tarrytown’s older unlined or clay-tile flues that exhaust accelerates deterioration even without a single wood fire. The Hudson River’s damp, windy microclimate adds an extra layer of spalling and efflorescence on exposed brick. An annual camera inspection is the cheapest way to catch cracks, animal nests, or draft problems before they become a carbon monoxide concern. Give us a call and we’ll get you scheduled.
Yes, and Tarrytown’s housing stock makes it worse. Modern gas fireplaces cycle heat differently than the coal and wood fires these chimneys were built for, and the condensation from gas exhaust is acidic. In an unlined or unparged brick chimney, that condensation eats at the mortar joints from the inside. The deterioration is invisible until we run a camera. We’ll show you exactly what’s happening and tell you honestly whether a liner is needed now, can wait a year, or isn’t necessary at all.
It can. Water entering through a cracked crown runs down the inside of the chimney, rusts the damper, and promotes corrosion in the metal components of your gas fireplace venting system. On split-levels near Broadway, we also see freeze-thaw cycles in late fall crack older mortar quickly, especially when the crown was never properly sloped. The crown repair and gas fireplace repair can usually be scheduled together, and we’ll document both with photos before and after. Call (914) 233-3156 for a free estimate, and we’ll get a tech out to look at the whole system.
Written by Cory Mitchell, Owner at Hadley Chimney Yonkers, serving Tarrytown since 2003.