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 Paterson
Duct sealing in Paterson typically costs $450 – $950 for a whole-home seal of supply and return runs, with post-flood jobs requiring partial replacement running $800 – $1,400 depending on how many low duct runs took on water. For related maintenance, see our Paterson Dryer Vent Cleaning service. Most Paterson appointments are scheduled within a few business days, and our crews are already working the Passaic County corridor from our dispatch office in New York City. If your basement flooded near the Passaic River or you’re catching musty air from registers in a Sandy Hill triple-decker, call (361) 326-5060 and we’ll get a tech out to inspect, photograph, and price the work in writing before anything starts.
We’ve been sealing ducts in Paterson long enough to know the difference between a straightforward mastic job on original galvanized steel and a post-flood replacement where river silt has worked into the insulation wrap. The early-1900s rowhouses in the 1st Ward, the triple-deckers climbing Sandy Hill, and the post-WWII ranches out toward Totowa each present their own duct problems. Our Duct Sealing team carries the equipment to document what can be saved and what an insurer will need to see before approving replacement.
Why Hollis Air Duct Cleaning Is Paterson’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning, founded in 2004 as part of the Garrison Partners family, runs on The Garrison Standard: written price before work starts, background-checked uniformed technicians, and a 365-Day Done Right Promise backed in writing on every job. In Paterson, that standard means something specific. We’ve walked enough flooded basements in the 1st Ward to know that a quick seal without moisture mapping just hides the problem until the next humid day.
Our technicians arrive in the quoted window, price the job in writing, and leave the site clean. No estimates that balloon once we’re inside. If our seal fails within a year, we come back at no charge, including a free second visit. That’s not a slogan; it’s the terms printed on every Paterson invoice. Calls are answered by a live person 24 hours a day, 7 days a week, so you’re not waiting through voicemail loops when your basement’s wet and the registers are blowing musty air.
We serve Paterson from our New York City dispatch office, with crews already in Passaic County for scheduled duct work. That proximity matters when you’re trying to get documentation to an adjuster before mold sets in.
Duct Insulation in Paterson
Duct Insulation in Paterson addresses a problem most homeowners don’t see until it’s already cost them money: degraded or waterlogged wrap around supply and return runs that lets conditioned air leak into basements, crawl spaces, and shared chases between rowhouse units. In Paterson’s humid continental climate, with summers that push 90°F and winters that keep windows shut for months, proper insulation means your blower motor isn’t fighting heat loss through the basement every January or cool-air bleed every July.
A typical Duct Insulation job in Paterson runs $600 – $1,200 for a full replacement of wrap on accessible runs, with partial jobs after flood damage starting around $350. We use professional-grade materials from Abatement Technologies and Guardsman, not hardware-store wrap that compresses and loses R-value within a season.
When Insulation Wrap Has to Come Off
After a Passaic River backup or heavy storm, fiberglass insulation wrap wicks water upward even when the duct metal itself looks dry. We pull saturated wrap before sealing, run moisture readings on the bare metal, and re-insulate only after the duct is confirmed dry. Sealing over wet wrap traps moisture against the metal and guarantees mold growth by the next cooling season.
Shared Chases in Older Housing
Paterson’s attached rowhouses and triple-deckers often run ducts through common chases between units. Insulating these runs requires access coordination with neighbors, and our crews are trained to document exactly which sections serve which unit so no one pays for work they didn’t get.
HVAC Duct Sealing in Paterson
HVAC Duct Sealing in Paterson closes the gaps, disconnected joints, and corrosion holes that leak heated or cooled air before it reaches your rooms. In a city where many duct systems are original galvanized steel from the 1920s – 1950s, sealed with cloth tape that has long since dried and peeled, the leakage rate can hit 20 – 30% of total airflow. That’s air you’re paying to condition that never makes it past the basement.
A typical HVAC Duct Sealing job in Paterson runs $450 – $950 for mastic application and mechanical sealing of accessible supply and return runs. Post-flood jobs requiring partial duct replacement after water intrusion run $800 – $1,400. We use Honeywell mastic applied with proper prep, not tape slapped over dust and corrosion.
Metal Ducts vs. Flex Ducts
Paterson’s early-20th-century housing stock is mostly galvanized steel, which can be sealed if structurally sound. Post-WWII ranches toward Totowa often have flexible ducting that rodents have compromised. Sealing torn flex is a waste of money; we replace the damaged section, then seal the connections properly.
Documentation for Adjusters
When floodwater has been in the system, we photograph every run before and after, record moisture content with calibrated meters, and mark exactly which sections were cleaned and sealed versus replaced. Adjusters in Passaic County have accepted our documentation for years because it shows the line between restoration and replacement in language they can use.
Trusted Brands We Service in Paterson
We stock parts and materials from Rotobrush, Nikro, Honeywell, Aprilaire, Abatement Technologies, and Guardsman, the same brands commercial crews specify. For Paterson customers, that means no waiting on special orders for mastic, insulation wrap, or register boots. Our vans carry Honeywell mastic in multiple viscosities for different gap sizes, Abatement Technologies HEPA filtration for post-flood source removal, and Guardsman insulation products rated for the temperature swings these old duct systems see. When a 1st Ward landlord needs a flooded basement unit turned around before the next tenant walkthrough, that local parts stock means we can price, seal, and insulate in one visit instead of two.
Common Duct Sealing Problems We See in Paterson Homes
- Post-flood moisture trapped in low runs. After heavy rains, basements in the 1st Ward and near the Passaic River flood, and that water wicks into duct insulation. Sealing over it with mastic hides the problem for a season, then the musty odor returns every humid day and the seal fails from the inside as mold degrades the mastic bond.
- Shared chases pushing contaminants between units. In old rowhouses and triple-deckers, sealing one unit’s supply and return without checking chase integrity can pressurize the system and push post-flood mold spores, industrial soot, or rodent debris into a neighbor’s registers.
- Rodent-chewed flex treated as a sealant job. Post-WWII ranches in Totowa often have flexible ducting that squirrels or mice have breached. Sealing over compromised flex traps debris, defeats source removal, and gives the homeowner a false sense of completion while air quality keeps declining.
- Original galvanized steel with corrosion at joints. Decades of condensation in Paterson’s humid summers has rusted through collar connections and seam locks. Tape won’t hold; the joint needs mechanical repair with proper mastic application after surface prep.
Pricing for Duct Sealing in Paterson, NJ
Whole-home duct sealing in Paterson runs $450 – $950 for a typical single-family or garden-unit job, covering mastic sealing of accessible supply and return runs, register boot sealing, and a post-job airflow check. Jobs requiring partial duct replacement after flood intrusion run $800 – $1,400, depending on how many low runs took on water and whether insulation wrap also needs replacement. Duct insulation replacement alone, without sealing, runs $600 – $1,200 for full wrap replacement or $350+ for partial jobs.
What moves the price: accessibility (crawl space vs. full basement), extent of water damage, whether flex duct sections need replacement, and whether shared chases require coordination with neighboring units. We give one flat price per system, agreed in writing before work starts. No per-vent pricing, no add-ons at the door. Call (361) 326-5060 for a free estimate; we’ll inspect, document, and price it on the spot.
We Also Serve Cities Near Paterson
Our crews work throughout Passaic and Hudson counties, including Duct Sealing in Paterson and scheduled appointments in North Bergen, Union City, Newark, and Jersey City. Each job carries the same written price guarantee and 365-Day Done Right Promise, whether we’re sealing ducts in a Jersey City high-rise or a flooded Paterson rowhouse basement.
Serving Paterson, NJ - Our Local Coverage Area
We’re based in the Paterson 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 Paterson
It depends on which runs took water and how long it sat. Supply and return ducts above the water line, with dry insulation wrap and no standing water inside, can usually be HEPA-vacuumed under negative pressure, source-removed, and sealed with mastic. Low return ducts that held standing water, or any run with saturated fiberglass wrap, typically need replacement because mold will colonize the insulation from the inside. We document the line with photos and moisture readings so you and your adjuster can see exactly why each section got the treatment it did. Call (361) 326-5060 for an inspection and written estimate.
Yes, if the work is documented properly. Insurers need to see pre- and post-condition photos, moisture content readings, and a clear distinction between restoration (cleaning and sealing salvageable runs) and replacement (runs that were genuinely soaked). We provide that documentation on every post-flood job in Paterson, and adjusters in Passaic County have accepted our reports because we show the line in language their guidelines recognize. Call (361) 326-5060 and we’ll walk you through what your adjuster will need before we start.
Because moisture is still in the system, usually trapped in fiberglass insulation wrap or pooled in low return runs that weren’t fully dried before sealing. Paterson’s proximity to the Passaic River and Great Falls keeps ambient humidity high, and every humid day reactivates mold spores that survived the initial cleanup. The fix is finding the wet section, removing it, drying the metal thoroughly, then sealing. Call (361) 326-5060 and we’ll trace the source with a camera inspection and moisture meter.
Yes, but it requires checking chase integrity first. In Paterson triple-deckers, especially in Sandy Hill, supply and return runs often share vertical chases between units. Sealing one unit’s leaks without addressing gaps in the chase walls can pressurize the system and push air, and any contaminants in it, into neighboring units. We inspect the full chase, seal between units where needed, then seal the ductwork itself. Call (361) 326-5060 to schedule an inspection.
Sealing helps by closing the entry points, but it doesn’t remove what’s already inside. Paterson’s industrial history left fine particulate in the soil and building fabric, and the tight, tree-lined streets trap ragweed and grass pollen. Sealing gaps at joints, registers, and chase penetrations stops new infiltration; HEPA source removal under negative pressure clears what’s already there. We typically recommend both for Paterson homes, especially in neighborhoods near the old silk mill districts. Call (361) 326-5060 for a combined cleaning and sealing estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Paterson and Passaic County.




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