Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Hicksville
Duct sealing in Hicksville typically runs $450 – $1,200 depending on how much of your ductwork is accessible and what shape the original runs are in. Most Hicksville homes need more than a quick patch job. They need a targeted repair plan built around 1950s and 1960s duct layouts that were never designed for Long Island’s humidity. Our crews know the split-levels off South Oyster Bay Road and the ranches near Cantiague Park. We show up on time, price the job in writing before we touch anything, and stand behind the work for a full year. Call (516) 559-4917 to talk through what you’re seeing.
Why Hollis Air Duct Hempstead Is Hicksville’s Preferred Duct Sealing Company
Hicksville homeowners call us because we treat duct sealing as a repair job, not a sales call. Roy Castellanos runs the operation on the Garrison Standard: written prices, written guarantees, and a 365-Day Done Right Promise on every job. If the seal fails within a year, we return at no charge. That’s not a promise we make lightly. It’s a promise we can keep because we document every joint we seal with before-and-after photos.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops, no callback queues. When a Hicksville homeowner calls about a musty smell coming from their vents, they talk to someone who understands the local housing stock and can schedule a real inspection. Dispatch and scheduling are coordinated from our New York City office; crews serve Hicksville locally.
We’ve seen what happens when duct sealing is treated as an afterthought. A homeowner gets a cheap patch, the rust comes back, and the same musty smell returns by spring. That’s why we start every Hicksville job with a camera inspection of the actual duct runs. We need to see what’s really happening in the crawl space before we quote a fix.
Styles & brands we work with
Duct Sealing Services in Hicksville
Duct Sealing Services in Hicksville start with finding where conditioned air is actually escaping. In a mid-century Hicksville home, the leaks are rarely where you’d expect them. They’re at rusted seams in crawl-space ductwork, at loose takeoff collars behind the furnace, and at disconnected returns that pull damp air into the system. Duct Sealing means closing those gaps with mastic and metal tape rated for sheet metal, not hardware-store duct tape that dries out and fails within a season. A typical whole-home sealing job in Hicksville runs $450 – $900 for accessible ductwork.
Camera Inspection Before Any Sealing
We don’t seal what we haven’t seen. Our technicians run a camera through your supply and return runs to identify rust-through, crushed sections, and disconnected joints. The inspection tells us whether sealing is the right fix or whether a section needs replacement first.
Accessible Joint Sealing
Most Hicksville homes have at least part of their ductwork accessible in a basement, crawl space, or attic. We seal those joints with mastic, a brush-on compound that hardens into a durable, airtight seal. Where ducts run through unconditioned space, sealing stops humid outside air from being pulled into the system.
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.
Duct Insulation in Hicksville
Duct Insulation in Hicksville is often the missing piece after sealing. Insulating attic runs and crawl-space ducts stops condensation from forming when cool air moves through warm, humid spaces. In Hicksville’s South Shore climate, that condensation is a recurring problem in spring and fall, when temperature swings are sharp and indoor humidity sits high. Adding duct insulation to exposed runs typically costs $300 – $700 depending on how many feet of duct we’re wrapping and whether the existing insulation is salvageable.
Attic Run Insulation
Uninsulated ducts in a Hicksville attic sweat. The condensation drips onto ceilings, stains plaster, and feeds mold. We wrap those runs in fiberglass insulation with a vapor barrier facing, sized to the duct dimensions, and we seal every seam so moisture can’t get behind the wrap.
Crawl Space Duct Wrapping
In crawl spaces, insulation works with sealing to protect galvanized ducts from rust. An insulated duct stays closer to the air temperature inside it, which means less condensation on the metal surface. Less condensation means slower corrosion. That matters when your ducts are original mid-century steel.
Trusted Brands We Service in Hicksville
We work on whatever duct system your Hicksville home has, whether it’s original galvanized steel or newer flexible duct. Our sealing and insulation materials come from professional suppliers, and we carry the filtration and air-handling products from Honeywell, Aprilaire, and Nikro that complement a sealed system. When a Hicksville homeowner needs a duct repair or a filter upgrade at the same time as sealing, we can handle it without sending you to a supply house. Parts are sourced for fast turnaround, and our techs carry common fittings and mastic on the truck so most sealing work happens in a single visit.
See the difference
Before
After
Before
After
Before
AfterCommon Duct Sealing Problems We See in Hicksville Homes
- Rusted galvanized seams in crawl-space ductwork. Hicksville’s proximity to the South Shore means salt air and high humidity. Original steel ducts from the 1950s and 1960s rust at the seams, and once a seam opens under negative pressure, the system pulls damp, mold-laden air straight into your supply side.
- Crushed return ducts in tight crawl spaces. Split-levels and ranches built during the post-war boom often have shallow crawl spaces. When a return run gets crushed, the air handler starves, blower motors strain, and upstairs rooms never cool evenly. Sealing alone won’t fix this; the crushed section comes out and a new run goes in.
- Disconnected ducts hidden behind finished walls. Hicksville homeowners have finished basements and added extensions over the decades. Ducts get disconnected during remodeling and nobody knows until a room stops getting air. Camera inspection finds the break, and sealing plus reconnection restores airflow.
- Condensation from uninsulated attic runs. In spring and fall, temperature swings in Hicksville attics are extreme. Bare metal ducts sweat, and the moisture drips onto ceilings below. Insulation is the answer, not just sealing the joints.
Pricing for Duct Sealing in Hicksville, NY
Whole-home duct sealing in Hicksville generally falls between $450 and $1,200. The spread comes down to access and condition. A ranch with a full basement and exposed ducts runs on the lower end. A split-level with half the ductwork in a tight crawl space runs higher because the labor takes longer. Duct insulation adds $300 – $700 depending on linear footage. If we find crushed or rusted-out sections during inspection, those get quoted separately before any work starts. That’s the Garrison Standard: you get a written price before we touch a single seam, and that price does not move at the door. Call (516) 559-4917 for a free estimate specific to your home.
We Also Serve Cities Near Hicksville
Beyond Hicksville, our crews cover Plainview, Levittown, Westbury, and East Meadow. Same standards, same written pricing, same 365-Day Done Right Promise. If you’re in a neighboring town with the same mid-century ductwork and the same humidity, you’re dealing with the same problems we see every week in Hicksville. Call (516) 559-4917 and we’ll schedule the camera inspection.
Serving Hicksville, NY - Our Local Coverage Area
We’re based in the Hicksville 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 Hicksville
Because Hicksville’s housing stock is predominantly single-family homes from the 1950s and 1960s, and the ductwork in those homes is typically original galvanized steel with decades of rust, crushed sections, and disconnected joints. Newer developments have flexible duct that’s easier to access and cheaper to seal. In Hicksville, we’re often repairing damage first and sealing second. Call (516) 559-4917 and we’ll give you a written price based on your actual duct condition, not a guess.
Not always, but in Hicksville the answer is usually yes for any ducts running through attics or crawl spaces. Sealing stops air leaks, but it doesn’t stop condensation from forming on bare metal surfaces. If your sealed ducts are still sweating in spring and fall, you’ll still get ceiling stains and mold. Insulation addresses condensation directly. Our techs will tell you honestly whether insulation is needed or whether sealing alone will solve your problem.
Yes, for most split-levels in Hicksville. We seal accessible ductwork from the crawl space, attic, and basement side. Ducts inside finished walls can’t be reached without demolition, but the camera inspection shows us whether those concealed runs are actually leaking. In most split-levels, the problem is in the accessible runs anyway. Call (516) 559-4917 to schedule the inspection and find out what’s actually going on in your walls.
The camera inspection answers that. If rust has eaten through the duct wall in more than a few isolated spots, sealing the seams won’t hold. We’ll show you the footage and quote replacement for the bad sections. In a dirt crawl space off Bethpage Road, we often find several feet of rusted-out duct that needs to come out before any sealing makes sense. Honest assessment comes before any quote. That’s the way Roy Castellanos runs the operation.
Yes, if the smell is coming from duct leaks drawing damp air from the crawl space or basement into the system. When a rusted seam opens under negative pressure, the supply side pulls in exactly the air you’re smelling. Sealing those leaks cuts off that source. If the smell is coming from mold inside the ducts themselves, sealing won’t fix it; cleaning and remediation will. We’ll tell you which situation you have before we recommend anything. Call (516) 559-4917 for an inspection.
Written by Roy Castellanos, Owner at Hollis Air Duct Hempstead, serving Hicksville since 2004.