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.
Fast, Reliable Duct Sealing Across North Bergen
We seal ducts in North Bergen homes built into the Palisades slope, where mid-century split-levels and converted two-families hide crushed flex runs and pinhole leaks that flatland contractors rarely encounter. Our crews know the difference between a Bergenline Avenue three-family and a Woodcliff bi-level, and we price every job in writing before we touch a tool. Dispatch and scheduling are coordinated from our New York City office, but the van that rolls to your door in North Bergen carries the same Rotobrush and Nikro equipment we use on commercial jobs. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is North Bergen’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Duct Sealing team has worked enough North Bergen basements to know what the housing stock hides. The 365-Day Done Right Promise covers every sealing job in writing. If a joint we mastic-sealed fails within a year, we come back and make it right at no charge, including a free second visit.
Our technicians are background-checked and uniformed. You know who’s walking in before they arrive. Phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops, no callback queues, no waiting until Monday for a scheduling answer.
We don’t compete on teaser prices. We compete on discipline: arrive inside the quoted window, price in writing, complete the job by the book, leave the site clean. That’s The Garrison Standard, and it’s how we work in North Bergen.
Air Duct Sealing in North Bergen
Air Duct Sealing in North Bergen means finding and closing the leaks that pull humid basement air, construction dust, and cross-unit odors into your living spaces. In this market, the job usually starts after a cleaning reveals the real problem: original galvanized seams that have worked open over sixty years of seasonal expansion, or flex duct crushed behind a finished wall during a 1980s renovation. A typical sealing job in North Bergen runs $450 – $950 for a single-family home, depending on how many runs need access panels and how much mastic work the metal requires. Multi-unit buildings with shared returns start around $800 and can reach $1,400 if we need to seal between floors.
What We Find Behind Finished Walls
On a job in the Woodcliff section near the Palisades, our tech found a crushed flex run behind a finished basement wall that was starving the second-floor supply registers. After cutting an access panel, we reconnected the run and sealed the joints with mastic, then verified airflow with a camera inspection. The homeowner immediately noticed better pressure at the registers and less dust near the air handler. This is not a rare story in North Bergen hillside homes.
Shared Returns in Multi-Unit Conversions
Many two- and three-family houses along Tonnelle Avenue and Kennedy Boulevard were converted from single-family homes decades ago, with returns shared between floors to save on ductwork costs. When these junctions aren’t sealed properly, cooking odors, pet dander, and moisture migrate between units. We seal these crossover points with fire-rated mastic and metal backing where code requires it.
Duct Sealing Services in North Bergen
Duct Sealing Services in North Bergen cover the full range of leak sources we encounter in this specific housing stock: pinhole leaks at galvanized seams, disconnected flex joints behind drywall, crushed runs in crawlspaces, and poorly sealed takeoffs where a previous contractor cut corners. The work typically takes four to six hours for a single-family home, longer if we need to open multiple access panels or work around finished basement ceilings. Our pricing is flat per system, agreed in writing before we start. No per-vent add-ons, no surprise charges once the van is in your driveway.
Mastic Application vs. Tape
We use water-based duct sealing mastic, not foil tape, on metal seams in North Bergen homes. Tape dries out in the temperature swings of unheated crawlspaces common here. Mastic remains flexible and is rated for the humidity this climate throws at it. We brush it into every seam and joint, then verify with a pressure test.

Camera Verification
After sealing, we run a camera through the accessible ductwork to confirm the repair and document the work for the homeowner. You see what we see. No guesswork, no “trust us” handoff. The images go on the invoice.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in North Bergen
Our vans carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, the same tools commercial crews use on hospital and school duct systems. For filtration upgrades tied to sealing jobs, we stock Honeywell and Aprilaire products. We don’t run to a supply house mid-job. Parts for North Bergen customers are on the van, which means the job finishes on schedule and the price doesn’t shift because we had to source a fitting.
Common Duct Sealing Problems We See in North Bergen Homes
- Pinhole leaks in original galvanized seams. North Bergen’s 1920s-through-1960s housing stock often still runs original or partially updated galvanized ductwork. Decades of seasonal expansion and contraction open hairline cracks at seams, pulling humid basement air into supply lines.
- Crushed flex duct behind finished walls. In split-level and bi-level homes near the Palisades, flex runs retrofitted during renovations get compressed or disconnected where they pass through studs or around corners. The result is weak airflow at distant registers and dust accumulation near the air handler.
- Shared returns in multi-unit conversions. Two- and three-family houses converted from single-family homes frequently share return pathways between floors. Without proper sealing at crossover junctions, air, odors, and moisture migrate between units.
- Poorly sealed takeoffs and retrofitted branches. Older North Bergen homes that added central air decades after original construction often have takeoffs cut hastily into existing trunk lines. These cuts are rarely sealed to modern standards, creating leaks that reduce system efficiency by 20 percent or more.
Pricing for Duct Sealing in North Bergen, NJ
A typical single-family duct sealing job in North Bergen runs $450 – $950. That range covers labor, mastic, access panels, and camera verification. Multi-unit buildings with shared returns or multiple air handlers start around $800 and can reach $1,400 if we need to open finished ceilings or seal between floors. What moves the price: how many runs need access panels opened, whether we’re working around finished basement space, and the condition of the original metal. We do not quote per-vent prices. The price is flat per system, written down before we start, and it does not move at the door. Call (361) 326-5060 for a free estimate. We’ll inspect the ductwork, explain what we found, and give you a written price you can compare.
We Also Serve Cities Near North Bergen
Our crews work throughout Hudson County, including North Bergen and the surrounding cities of Union City, Hoboken, Jersey City, and Bayonne. Each job follows The Garrison Standard: arrive inside the window, price in writing, complete the work by the book, leave the site clean.
Serving North Bergen, NJ - Our Local Coverage Area
We’re based in the North Bergen 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 North Bergen
If your registers blow weakly, rooms heat unevenly, or you see dust accumulation near the air handler, you likely have leaks that cleaning won’t fix. In North Bergen’s older homes, we often find that a cleaning reveals the real problem: disconnected or crushed runs hidden behind finished walls. Call (361) 326-5060 and we’ll inspect the ductwork to determine whether sealing is needed.
Yes. We work unit by unit, sealing shared junctions from accessible points and coordinating access with each resident. In North Bergen’s converted two- and three-family houses, we’re experienced at isolating work areas and minimizing disruption to neighboring units. Call (361) 326-5060 to schedule an inspection and we’ll explain the access plan for your specific building.
We use professional-grade tools from Rotobrush and Nikro for access and cleaning, and Abatement Technologies filtration products where upgrades are part of the job. Our mastic and sealants are rated for the humidity and temperature swings of North Bergen’s climate, not hardware-store tape that fails in crawlspaces.
North Bergen’s humid continental climate creates conditions where unsealed ducts pull moist basement air into living spaces, promoting mold and mildew growth inside the ductwork. Proper sealing with flexible, humidity-rated mastic prevents this infiltration and helps your dehumidification equipment work more efficiently. The 365-Day Done Right Promise covers our sealing work for a full year, including any callbacks for seal failure.
Yes, significantly. A 1950s North Bergen home with original galvanized ductwork likely has decades of pinhole leaks at seams, pulling in basement air, construction debris, and in multi-unit buildings, odors from neighboring units. Sealing these leaks stops the infiltration at its source. You’ll see less dust at registers, more even heating and cooling, and reduced strain on your HVAC system. Call (361) 326-5060 for a free inspection and written estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving North Bergen and the surrounding Hudson County communities.




Before
After
Before
After
Before
After