Can I just leave the damper open all winter?

You can use the fireplace that way, but a damper stuck open is an open hole in your house. Warm air goes up the flue continuously, which you feel on the heating bill through a long New York heating season that runs roughly October through April.

Do I need a permit for damper work in Yonkers?

Permits in New York are issued locally, by the municipal building department and code enforcement officer, not by a state agency. Routine sweeping and inspection generally do not require one, while structural masonry work such as rebuilding a chimney above the roofline typically does. Call the Yonkers building department before work begins.

Is the sweep licensed?

New York does not issue a statewide license for chimney sweeping, inspection or masonry repair — it is handled locally. Westchester County runs its own home improvement contractor licensing program, so ask the technician directly about their licensing and insurance, and check current requirements with the county consumer affairs office.

My house is one of the older brick two-families. Is that a factor?

Often, yes. Much of Yonkers predates 1940 and many of those masonry chimneys were originally built for coal or oil heat and converted later, so the throat damper may be original and the flue may be sized for an older system. The technician will look at the damper and the liner together.

What should I ask for before agreeing to the work?

Ask to see the camera footage from inside the flue, and ask for the reasoning in writing — what is wrong, what is proposed, and why. The technician gives you the price after inspecting and before starting, and nothing proceeds until you approve it.

Damper stuck in Yonkers, NY

The handle will not move, or it moves and nothing happens. That is a damper problem. The plate sits in the throat of the fireplace, just above the firebox, and it is usually rusted into its frame, seized at the pivot, or packed with old soot and debris. Sometimes the handle or linkage has snapped off and the plate itself is fine.

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Rust from an uncapped flue is the usual cause. Rain and snow fall straight down an open chimney onto the one metal part in the whole system, and Yonkers gets roughly 25 to 30 inches of snow a year plus the wind-driven rain that comes with tropical storm remnants like Irene, Sandy and Ida. Humidity stays high here year-round, so an unused flue never really dries out. Much of the Yonkers housing stock predates 1940 — brick and stucco rowhouses, two- and three-family homes, prewar brick buildings — and many of those chimneys were built for coal or oil and converted later, so the throat damper may be eighty years old and have never been cleaned.

While you wait — please don't

Do not light a fire until you know the damper is open. A closed or partly closed damper pushes smoke and carbon monoxide back into the room instead of up the flue.
Look up with a flashlight and check before you strike a match. The handle position can lie once the linkage is bent or broken, so confirm with your eyes that the plate is actually swung clear.
Do not force it with a bar or a hammer. A rusted damper frame is set into the masonry, and cracking it turns a small repair into a masonry job.
If smoke comes into the room, stop using the fireplace. Put the fire out, open windows, and if anyone feels dizzy, sick or has a headache, get everyone outside and call 911.

What the technician does

The damper is inspected and identifiedThe technician opens up the firebox, gets a light on the throat, and works out whether the plate, the pivot, the handle or the frame is the problem.
Freed, cleaned and re-seatedRust and soot are cleared from the plate and the seat so it swings properly and closes tight again. A damper that will not seal is a damper that costs you heat all winter.
Handles, pivots and hardware replacedBroken handles, worn pivot pins and bent linkage get replaced so the damper is operated from the firebox the way it was designed to be.
A top-sealing damper fitted where the throat damper is past savingIf the frame is gone, a top-sealing damper mounted at the top of the flue does the same job and seals better than the original ever did.
The flue swept while it is accessibleWith the damper open and the firebox already opened up, it is the right moment to sweep the flue and see what is above it.
A cap fitted to stop the waterA cap keeps rain and snow off the damper so the same rust does not come back. This is the part that stops it happening twice.

Why this happens in Yonkers, NY

Freeze-thaw is hard on Yonkers chimneys. Winters here drop regularly into the teens and 20s, and water that soaks into a crown or a mortar joint expands when it freezes. That same water is what reaches the damper. So a stuck damper on a century-old Yonkers chimney is often found alongside a cracked crown or open mortar joints that need repointing, and the technician will tell you if that is what they see. Repointing and exterior masonry work generally wait for warmer months, when mortar can cure without freezing.

Timing matters. Demand across Yonkers and the rest of Westchester climbs in late fall as people get heating systems, chimneys and ducts ready before the first freeze, again mid-winter, and again in spring when freeze-thaw damage becomes visible. If your damper is stuck open, you are losing heated air up the flue every hour of a cold Yonkers winter, so it is worth dealing with rather than living with.

Questions people ask

Can I just leave the damper open all winter?: You can use the fireplace that way, but a damper stuck open is an open hole in your house. Warm air goes up the flue continuously, which you feel on the heating bill through a long New York heating season that runs roughly October through April.
Do I need a permit for damper work in Yonkers?: Permits in New York are issued locally, by the municipal building department and code enforcement officer, not by a state agency. Routine sweeping and inspection generally do not require one, while structural masonry work such as rebuilding a chimney above the roofline typically does. Call the Yonkers building department before work begins.
Is the sweep licensed?: New York does not issue a statewide license for chimney sweeping, inspection or masonry repair — it is handled locally. Westchester County runs its own home improvement contractor licensing program, so ask the technician directly about their licensing and insurance, and check current requirements with the county consumer affairs office.
My house is one of the older brick two-families. Is that a factor?: Often, yes. Much of Yonkers predates 1940 and many of those masonry chimneys were originally built for coal or oil heat and converted later, so the throat damper may be original and the flue may be sized for an older system. The technician will look at the damper and the liner together.
What should I ask for before agreeing to the work?: Ask to see the camera footage from inside the flue, and ask for the reasoning in writing — what is wrong, what is proposed, and why. The technician gives you the price after inspecting and before starting, and nothing proceeds until you approve it.

One call

Call (866) 576-7943 and One Call Chimney will arrange a damper repair in Yonkers with an independent sweep — we are a referral and scheduling service, not the contractor. Every job starts with a free estimate: the technician inspects the chimney, gives you the price, and you approve it before any work begins.

Call now · (866) 576-7943

Something else in this area

One Call Chimney arranges the visit; the technician does the work and gives you the price.