Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
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AfterFast, Reliable Duct Sealing Across Manhattan
We’re Hollis Air Duct Cleaning, and we’ve been sealing ductwork in Manhattan’s vertical city since 2004. Our crews work the pre-war co-ops of the Upper West Side, the landmark condos of Greenwich Village, and the post-war towers lining Park Avenue. We know the freight elevators on West End Avenue, the service stairs on the East Side, and the board-approved vendor lists that every building manager keeps on file.
Dispatch and scheduling run from our New York City office, but the technicians who arrive at your door live and work in the five boroughs. They carry the right certificates of insurance for your building, the right fittings for irregular pre-war grilles, and the right tools to seal ductwork floor-by-floor in shared vertical shafts. If you’re losing heated air into the walls of your Manhattan apartment or pulling dust from a neighbor’s renovation through leaky return joints, call us at (361) 326-5060. We’ll give you a written price before any work starts, and we back every seal with our 365-Day Done Right Promise.
Why Hollis Air Duct Cleaning Is Manhattan’s Preferred Duct Sealing Company
We’ve earned our reputation in Manhattan one building at a time. Co-op boards on Central Park West and condo associations in Tribeca know our paperwork arrives complete the first time, COIs filed correctly, work windows respected. No callbacks from building management. No weekend violations.
Our response time to Manhattan averages same-week scheduling, though we never promise what we can’t control. What we do guarantee: your technician arrives inside the quoted window, in uniform, background-checked, with a photo ID you can verify against the name we give you when you book. That’s The Garrison Standard, and it applies to every job we run in Manhattan.
Local knowledge matters here more than in most markets. A crew from outside the city won’t know that your 1920s building’s duct shafts were retrofitted in the 1960s with takeoffs that never sealed properly, or that your landmark status means we can’t cut new access panels without preservation approval. Our techs have worked these buildings. They’ve hauled Nikro negative-air machines up service stairs when the freight elevator was booked. They’ve documented static pressure readings for boards that want proof the job was done right.
We don’t compete on the lowest teaser price. We compete on the bid you can trust, priced in writing before we touch a tool, backed by a full year of coverage if anything fails.
Air Duct Sealing in Manhattan
Air Duct Sealing in Manhattan is not a single-residence job in most buildings. The ducts here are shared vertical shafts serving dozens of units, with branch takeoffs on each floor that pull air into individual apartments. When those joints leak, you’re not just losing efficiency. You’re pulling dust, odors, and moisture from every floor above and below you.
Our process starts with a camera inspection through existing access points, or through irregular openings hidden behind original millwork in buildings like those on the Upper West Side. We identify unsealed joints at riser takeoffs, gaps where cast-iron meets galvanized transitions, and failed tape jobs from decades-old repairs. Then we seal with mastic and mesh, the method that holds up in Manhattan’s humidity and temperature swings. A typical air duct sealing job in Manhattan runs $450 – $1,200 per air handler, depending on access difficulty and the number of joints that need attention. Full-building shaft sealing, coordinated floor-by-floor, runs $3,500 – $8,000 and requires board approval and scheduling.
Per-System Pricing for Multiple Air Handlers
Many Manhattan apartments, especially pre-war units that were combined or renovated, have two or three separate air handlers feeding different zones. We price each system individually, in writing, before work starts. No per-vent nonsense. No invoice that balloons once we’re inside. You know the total cost for all three systems before we seal the first joint.
Board Compliance and Documentation
Every Manhattan co-op and condo has its own rules. We file certificates of insurance, submit to approved-vendor lists, and work within the time windows your building allows. After the job, you get camera stills, static pressure before/after readings, and a written report your board can file. No other documentation we’ve seen matches this level of detail.
Duct Sealing Services in Manhattan
Duct Sealing Services in Manhattan require equipment that can move vertically and technicians who can navigate building protocols that change from one lobby to the next. We use Rotobrush rotary systems for branch-line cleaning and sealing prep, Nikro negative-air machines to maintain pressure containment in shared shafts, and mastic compounds rated for the temperature swings these buildings experience.
The work happens in stages: inspection, documentation, sealing, verification. Each stage gets written down. A typical duct sealing service for a single apartment’s branch lines runs $350 – $800. If your building requires fire-damper inspection or replacement as part of the job, that adds $200 – $400 per damper, and we include it in the written price upfront. We do not add charges at the door.
Asbestos-Aware Sealing in Pre-War Buildings
Manhattan’s pre-war housing stock often contains asbestos-lined ductwork. We never use aerosolized sealants on these systems. It’s a code violation and a health hazard. Our techs identify asbestos-containing materials during camera inspection and seal only with brush-applied mastic on accessible joints, or recommend abatement if the situation requires it. We carry Guardsman filtration products and Abatement Technologies containment gear for these exact conditions.
Landmark and Preservation Constraints
Buildings in Greenwich Village and the Upper West Side often have decorative grilles and plaster ceilings that cannot be disturbed. Our crews carry custom fitting kits and plaster repair materials alongside standard tools. If we need to create access, we patch to match. The building’s landmark status is not an obstacle. It’s a condition we plan for.
What happens when you call
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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 Manhattan
We stock parts and maintain equipment from the brands that actually appear in Manhattan buildings: Aprilaire filtration systems, Abatement Technologies containment and HEPA gear, and Guardsman air quality products. Our Rotobrush rotary brush systems handle the irregular duct geometries common in pre-war construction, and our Nikro negative-air machines maintain proper containment when we’re working floor-by-floor in shared shafts. We don’t show up hoping we have the right fitting for your 90-year-old grille. We inventory for Manhattan’s actual housing stock, which means faster turnaround and fewer return visits. If your building uses Honeywell or Aprilaire components, we seal to those specifications and document compatibility for your maintenance records.
Common Duct Sealing Problems We See in Manhattan Homes
- Shared shaft leaks causing cross-contamination between floors. In pre-war co-ops on the Upper East Side and West End Avenue, we regularly find that sealing only the branch ducts in one apartment leaves the vertical shaft joints open above and below. Stack effect pulls air through those gaps year-round. We seal floor-by-floor under negative pressure so the fix holds.
- Failed tape jobs from decades-old repairs. Manhattan’s post-war buildings often have duct tape that dried and peeled in the 1980s. The adhesive turns to powder. We remove it completely and replace with mastic and mesh rated for the temperature cycling these systems endure.
- Condensation damage from humid summers and poorly sealed windows. The combination of Manhattan’s summer humidity and winter dry air creates expansion and contraction at duct joints. Add moisture from through-wall AC units or the occasional steam pipe issue, and you get rust, separation, and mold. Sealing stops the air leakage that carries that moisture into the walls.
- Irregular openings hidden behind original millwork. In Greenwich Village and the Upper West Side, we’ve found duct access points covered by decorative grilles that haven’t moved since 1925. Our techs carry the tools to work through these openings or create minimal-access points that we patch to match.
Pricing for Duct Sealing in Manhattan, NY
Honest pricing means ranges you can use, not a low number that changes once we’re inside. In Manhattan’s market, duct sealing for a single apartment’s branch lines typically runs $350 – $800. Multiple air handlers in combined units run $450 – $1,200 per system. Full-building vertical shaft sealing, coordinated with management and done floor-by-floor, runs $3,500 – $8,000 depending on building height and access conditions.
What moves the price: number of systems, access difficulty (freight elevator vs. service stairs vs. ladder work), fire-damper inspection requirements, and whether asbestos containment is needed. We put all of this in writing before work starts. One flat price per system. No per-vent pricing. No charges added at the door.
Every estimate is free. Call (361) 326-5060 and we’ll schedule a camera inspection that gives you the exact number for your specific building and unit.
We Also Serve Cities Near Manhattan
Our crews work throughout the metro area. We regularly run Duct Sealing in Manhattan and also serve Brooklyn, Staten Island, the Bronx, and Mount Vernon. Each job follows The Garrison Standard: written price, written guarantee, background-checked uniformed technicians, and the 365-Day Done Right Promise. If you manage properties in multiple boroughs, we coordinate scheduling across locations with a single point of contact.
Serving Manhattan, NY - Our Local Coverage Area
We’re based in the Manhattan 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 Duct Sealing in Manhattan
Yes. We file COIs with your building management before we arrive, and we maintain approved-vendor status with major Manhattan co-op and condo management companies. If your board requires additional documentation, we submit it with the estimate so nothing delays your work window. Call (361) 326-5060 and we’ll confirm your building’s specific requirements when you book.
We price each air handler as a separate system, with a written flat price per system agreed before work starts. A typical three-system Manhattan apartment runs $1,350 – $3,600 total, depending on access and the number of joints per handler. You see the full breakdown before we seal anything. No package discount gimmicks, no surprises.
We start with camera inspection through existing openings or irregular grille patterns. If we need access, we create the smallest possible opening and patch with matching plaster before we leave. Our techs carry repair materials on every truck. Landmark preservation rules are respected, and we document our access method for your building’s records.
You receive camera stills of the sealed joints, before-and-after static pressure readings, a written work summary, and a copy of our 365-Day Done Right Promise. If your board requires additional documentation, we include it. You have proof the work happened, proof it worked, and a year of coverage if anything fails.
They can, if the wrong materials are used. Mastic and mesh, properly applied, flex with temperature expansion and contraction better than tape or aerosolized sealants. In Manhattan’s climate, a quality seal should last 10 – 15 years. Our 365-Day Done Right Promise covers the first year completely, and we document our work so you have a baseline for future inspections. Call (361) 326-5060 for an estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Manhattan since 2004 as part of the Garrison Partners family.