Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
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 Chimney Sweep Across Upper West Side
Most chimney sweeps in Upper West Side run between $189 and $379, depending on the flue condition and how many fireplaces tie into the stack. We give you the written price before we touch a single brick, and the number on the invoice matches the number we quoted at the door. That matters here more than almost anywhere else in New York, because Upper West Side chimneys are rarely simple. You’re dealing with prewar masonry, shared flues, co-op rules, and landmarked facades. Call (315) 644-2982 and you’ll get a live person who can walk you through what your building actually needs.

Why Ashby Chimney New York Is Upper West Side’s Preferred Chimney Sweep Company
Ashby Chimney New York has been cleaning flues since 2002, and each of our locations is independently owned under the Kingswell Guarantee. On the Upper West Side, that guarantee means something specific: if we say a liner is fine, you get camera footage showing that. If we say a mortar joint is failing, you see the spalling on screen before we ask for a repair order. Nathan Corliss runs our crew, and his stance is simple. No recommendation without visual evidence. No price that changes after the first look. No work started before you approve the written quote.
Upper West Side residents call us because we already understand the building stock. Brownstones off Riverside Drive, six-story elevator co-ops on West End Avenue, row houses between Broadway and Central Park West. Each one has different roof access, different board approval requirements, and different flue geometry. We send background-checked, uniformed technicians who show up in the window we give you. And when something goes wrong with a repair, the 365-Day Done Right Promise means we return and fix it at no charge.
Styles & brands we work with





Fireplace Cleaning in Upper West Side
Fireplace Cleaning in Upper West Side means more than vacuuming out last winter’s ash. Most of the chimneys we service belong to buildings constructed between the 1880s and 1930s, with clay-tile flues that have been absorbing heat and moisture for over a century. When we clean a fireplace here, we’re working within a shared stack that may serve three, five, or even eight other units. The first sentence we hear from most new customers is some version of “the smoke backs up every time I light a fire.” That’s usually creosote built up at an offset bend, or a flue cap packed with leaves from the last nor’easter.
In Upper West Side, a standard fireplace cleaning runs $189 to $279 when the flue is in reasonable shape. If the glaze is heavy or the firebox needs detailed hand-cleaning around decorative tile, expect to land at $299 to $379. We’ll tell you the exact number after the initial inspection, before any work begins.
Creosote and Soot Removal
Creosote is the tar-like residue that condenses on flue walls when wood smoke cools too quickly. In Upper West Side chimneys, the problem compounds because older clay tiles have rough, porous surfaces that hold creosote better than modern stainless liners. We remove it with rotary chains and hand brushes, not just a push broom from the roof. Soot removal is lighter work, but in shared flues even light soot can restrict draft enough to push smoke into a neighbor’s apartment.
Annual Sweep Before Burning Season
The smartest Upper West Side homeowners schedule a sweep in late summer or early fall, before the first cold snap. Co-op boards often require documentation of an annual cleaning before allowing fireplace use. We provide a written report your board or managing agent will accept, and we can coordinate roof access with your super so you don’t have to chase down keys.
Chimney Services in Upper West Side
Chimney Services in Upper West Side go well beyond brushing out a flue. The housing stock here creates a specific set of challenges: shared chimney stacks, unlined or clay-tile flues, ornate terra-cotta caps, and mortar joints that have been freezing and thawing for a hundred winters. We start every service call with the question, “what’s the building layout?” because on the Upper West Side, that answer changes everything about how we access the flue and what we can safely recommend.
A Level 1 inspection (what most sweeps include) runs $149 to $249. A Level 2 camera inspection, which we strongly recommend for any prewar building, runs $299 to $449 and puts live footage of the flue interior on a screen you can see. That’s the difference between being told you need a $9,000 liner replacement and seeing with your own eyes whether the clay tiles are actually spalling or just dirty.
Level 1 and Level 2 Inspections
Level 1 covers what we can see without special equipment: the firebox, damper, accessible flue surfaces, and chimney exterior. Level 2 adds a camera run through the entire flue length, including the smoke chamber and any offsets where creosote hides. In landmarked brownstones and large co-ops, we almost always recommend Level 2 because visual-only chimney assessments miss too much inside shared masonry stacks.

Liner and Crown Repairs
When a clay-tile flue in a prewar building starts spalling, the sharp fragments can catch creosote and accelerate blockage. Our repair recommendations always come with camera evidence. We install stainless liners from DuraFlex and use HeatShield for resurfacing smoke chambers and damaged clay sections. The Kingswell Guarantee covers every repair in writing, for the full guarantee period. If it fails, we return and correct it free.

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 Upper West Side
We don’t install whatever happened to be in the van. Our Upper West Side work uses components from Olympia Chimney, DuraFlex, and HeatShield because these brands specifically engineer liners and flue systems for masonry applications like the ones we encounter in prewar buildings. When a co-op on Central Park West needs a liner certified for a shared flue serving three units, we already have the sizing specs and materials on hand. For Upper West Side customers, that means faster turnaround and a repair that won’t fail again in six weeks.
Common Chimney Sweep Problems We See in Upper West Side Homes
- Shared-stack blockages affecting neighbors: Because many Upper West Side buildings run multiple fireplaces into a single chimney stack, a creosote glaze in one flue can back up draft for every unit connected to that masonry column. We’ve had calls where one apartment’s “smoky fireplace” was actually caused by a third-floor neighbor’s neglected gas fireplace venting tar-like residue into the shared stack.
- Unlined clay-tile flues never designed for gas appliances: Older brownstones and row houses often have original clay tiles sized for wood fireplaces. When someone vents a gas insert or fireplace through that same flue years later, the lower exhaust temperature causes acidic condensation that eats mortar and accelerates spalling. The damage shows up as a white, powdery residue inside the flue, visible only on camera.
- Nor’easter debris and uncapped chimneys: Upper West Side roofs take direct wind off the Hudson, especially in exposed Riverside Drive buildings. Uncapped flues fill with leaves, twigs, and sometimes rookery debris. A cap costs a fraction of what a full sweep plus water damage repair runs, but we still find dozens of open flues every season.
- Hide-and-sweep jobs that clean only the first few feet: Some sweeps in this market only clean the visible firebox and lower flue, then hand you a bill. The upper bends, offsets, and smoke chamber stay packed. You won’t know until the next fire backs smoke into your living room. Our camera inspection is what separates our work from that.
See the difference
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After
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AfterPricing for Chimney Sweep in Upper West Side, NY
A standard chimney sweep in Upper West Side runs $189 to $279 for a single fireplace with an accessible flue in decent shape. Add a Level 2 camera inspection and you’re at $299 to $449, which we recommend for any prewar building or shared stack. Heavy creosote glaze removal runs $379 to $579. Liner repairs start around $1,800 and go up based on flue height, material, and how many units tie into the stack. Wood stove or gas insert sweeps land at $229 to $329. Every quote is written, every price is agreed before work starts, and every repair carries the Kingswell Guarantee in writing. Call (315) 644-2982 for a free estimate.
We Also Serve Cities Near Upper West Side
Ashby Chimney New York handles Chimney Sweep work across the wider metro, including New York, East New York, Manhattan, and Midtown Manhattan. If you’re in a neighboring area with a prewar building or shared flue, we bring the same camera-first approach and written guarantee. Check our Chimney Sweep in Upper West Side page for specifics on how we work in this neighborhood.
Serving Upper West Side, NY - Our Local Coverage Area
We’re based in the Upper West Side 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 Chimney Sweep in Upper West Side
When a building shares a single chimney stack across multiple units, our sweep covers the entire flue from your firebox to the roof cap, not just the accessible section. We also inspect the smoke chamber, the offsets, and the cap, and we coordinate with your building’s super or managing agent to access any shared roof areas. The written report we provide documents what was cleaned and what condition the flue was in, which most co-op boards require before allowing fireplace use. Call (315) 644-2982 to schedule, and we’ll walk you through what your specific building needs.
Yes, in most Upper West Side co-ops and many rental buildings, roof access requires approval from the building’s board, managing agent, or super. We can’t legally climb onto a roof without proper authorization. Our office can help you prepare the right request, and we’re comfortable working with supers and building management to schedule the visit. If your board requires a certificate of cleaning, we provide that in writing after the work is complete.
Yes, but it requires the right tools and a careful hand. Clay-tile flues in landmarked brownstones are often rough and fragile, so we use rotary chain cleaning systems sized to the flue’s actual dimensions rather than aggressive metal brushes that can chip tile edges or scar the masonry. We also protect the firebox and any decorative terra-cotta detailing around the opening before starting. The camera inspection before and after shows the condition of the clay tiles so you can see we left them intact.
We won’t recommend a liner repair without showing you camera footage of the actual damage. A sweep removes creosote and soot, but it can’t fix cracked or spalled clay tiles. If our Level 2 camera inspection finds tile fragments, gaps, or heat damage to the flue interior, we’ll show you that footage on the screen and explain what it means. If the flue is just dirty, we’ll say so, and the price stays at the sweep rate. No recommendation without visual evidence is our rule, and Nathan Corliss holds every tech to it.
Late summer through early fall is the best window for Upper West Side buildings, before the first cold snap and before roof-access scheduling gets crowded. Many co-op boards require proof of cleaning before fireplace season starts, and getting on the schedule in August or September means you’re not waiting behind six other units in the same building. Our phones are answered by a live person 24/7, so you can call (315) 644-2982 any time and book your slot.
How Ashby Handles Shared Prewar Chimney Stacks on the Upper West Side
With many prewar co-ops and landmarked brownstones sharing a single chimney stack across multiple units, a blockage in one Upper West Side fireplace can cut off draft for neighbors, which means every sweep here starts with building-wide coordination, not just one flue. We had a job in a six-story co-op on West End Avenue where a fifth-floor resident complained of smoke backing into the living room. Our techs ran a Level 2 camera inspection up the shared masonry flue and found a third-degree creosote glaze at the offset above the fourth floor, built up from years of venting a gas fireplace into an unlined clay-tile flue never designed for it. After coordinating rooftop access with the super, we removed the tar-like buildup with a rotary chain and installed a DuraFlex liner in that flue only, restoring draft without touching the neighbor’s fireplaces.
That’s the kind of work this neighborhood demands. Cleaning only the firebox and first few feet of flue leaves the upper bends packed with creosote that still chokes every unit’s draft. Recommending a liner replacement based on a visual-only look, without showing camera footage of the actual clay-tile spalling or mortar gaps in the smoke chamber, is how homeowners get burned. Missing the landmarked brownstone’s board approval for roof access forces a second visit and leaves debris sitting in the flue cap. Our approach is built around avoiding all three failures.
If you live on the Upper West Side, your chimney is almost certainly prewar, masonry, and tied into a system that other people depend on. You need a company that understands that system and shows you the work before it starts. Call (315) 644-2982 and we’ll give you a written price, a real arrival window, and a written guarantee on every repair.
Written by Nathan Corliss, Owner at Ashby Chimney New York. Independently owned and operated under the Kingswell Guarantee since 2002.