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 Nellis AFB
Duct sealing in Nellis AFB typically runs between $450 and $1,150 for a full system, depending on how many leaks we find and where they sit. We serve every sector of base housing, from the original 1950s duplexes near Fitzgerald Boulevard to the newer family units off Duffer Drive. Our crews know the access restrictions, the housing inspection cycles, and the dust patterns that make Nellis AFB different from anywhere else in the valley. Call (775) 383-5847 and you’ll get a written price before any work starts. No number games at the door.
Why Hollis Air Duct Henderson Is Nellis AFB’s Preferred Duct Sealing Company
We’ve been sealing ducts in Nellis AFB long enough to know what’s actually inside those walls. Most of the housing here went up between 1950 and 1975, which means original sheet metal duct sections and early flex runs. Our technicians see the same failure patterns on base that civilians in Henderson or North Las Vegas rarely encounter: joints that have separated under decades of attic heat, return plenums that pulled loose, and runs that carry the fine Mojave silt we’ll describe below.
Roy Castellanos runs our crews to a standard that matters on base: arrive inside the quoted window, put the price in writing before touching anything, seal what needs sealing, and leave the workspace cleaner than we found it. That’s The Garrison Code, and it’s the same discipline we bring to every duplex off Craig Road and every single-family home near the golf course. We answer the phone with a live person, and we stand behind every duct sealing job for a full year under our 365-Day Done Right Promise. If a sealed joint fails within 365 days, we come back and fix it at no charge. That’s not a sales line. It’s written on every invoice.
Styles & brands we work with




Air Duct Sealing in Nellis AFB
Air Duct Sealing in Nellis AFB means closing the gaps, cracks, and separated joints in your existing ductwork so conditioned air travels where it should: into your living space, not the attic, not the crawlspace, not the wall cavity. We use duct mastic, which is a thick, brushable compound that hardens into a permanent seal. We don’t use duct tape, which dries and peels under attic heat. The work usually takes four to six hours for a standard Nellis AFB home, and it costs what we quoted before we start.
What Sealing Fixes
When a supply run leaks in an attic that hits 140°F in July, your AC pumps cooled air into unconditioned space. The system runs longer to compensate, which pulls more dust through the return. Sealing those leaks cuts runtime and reduces the volume of outside air, including fine desert silt, being drawn into the system. This is the single most common issue we find in base housing off Las Vegas Boulevard’s northern stretch.
When to Seal
You need duct sealing if your dust returns within days of a cleaning, if some rooms run hot while others freeze, or if your cooling bill climbs through June and July despite a clean filter. All three point to air moving where you don’t want it. A camera inspection during the initial visit tells you exactly what’s leaking and what it will cost to fix.
Duct Sealing Services in Nellis AFB
Duct Sealing Services in Nellis AFB go beyond spreading mastic on visible joints. We inspect the full run: supply, return, plenum, trunk line, and branch takeoffs. If your ducts sit under a crawlspace below a 1960s duplex, we check for crushed flex runs caused by decades of maintenance foot traffic. If the return has separated from the air handler, we’ll map it with a camera, show you the image, and price the repair before touching the metal. A full-service duct sealing job on a Nellis AFB home typically runs $550 to $1,100.
Return-Side Leak Repair
The return side is the highest priority. A return leak pulls attic air and silt directly into your system, bypassing the filter entirely. We sealed a 1960s duplex on Magnolia Drive where the return had pulled away from the air handler completely. The system was pulling in attic air at full draw. We mapped the separation on camera, sealed the joint with mastic, and reinforced the connection. The homeowner’s cooling runtime dropped by a full cycle per hour. That’s what return-side sealing does.

Supply-Side Leak Repair
Supply-side leaks are less harmful to air quality but far more common. Heat and time loosen every joint on a 60-year-old duct run. Sealing them means opening access where needed and applying mastic at every seam, takeoff, and elbow. We test with a pressure gauge when the job allows. It’s not about making the duct “look” sealed. It’s about measurable static pressure before and after.

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 Nellis AFB
We work on and around systems built with components from Nikro, Honeywell, and Aprilaire. Our negative-air machines are Nikro units, and we spec filtration products from Honeywell and Aprilaire when a sealed system needs a stronger media filter or an electrostatic upgrade. We carry the mastic, tape, and reinforcement products for common Nellis AFB duct configurations, which means shorter turnaround times and no second-visit parts delays on the majority of jobs we quote. If your system sits in a tight 1950s utility closet near the Nellis AFB flight line, we’re already familiar with the access constraints. We stock and work with Abatement Technologies filtration when the job demands HEPA-level capture during sealing work, particularly in homes with severe silt accumulation.
Common Duct Sealing Problems We See in Nellis AFB Homes
- Desert silt finer than 30 microns bypassing old fiberglass duct joints. This dust is finer than household dust and travels straight through degraded joints and into the air handler. It settles on the blower wheel, creating imbalance that wears bearings out years early.
- Crushed flex runs under crawlspaces. Decades of maintenance traffic under Nellis AFB duplexes flatten flex ducts and choke airflow. That leads to frozen coils in August and uneven temperatures room to room.
- Unsealed supply ducts in 140°F attics. The attic heat cooks the tape and dries old mastic. Conditioned air leaks into the attic, the system runs longer to hold setpoint, and the longer runtime pulls more dust through the return. The cycle feeds itself.
- Return plenum separation on original 50s and 60s installations. Old sheet metal returns were sealed with failing material and decades of thermal cycling. When the return pulls away from the air handler, your system breathes attic air. That’s the Magnolia Drive problem, and it’s common across base housing.
See the difference
Before
After
Before
After
Before
AfterPricing for Duct Sealing in Nellis AFB, NV
A simple mastic sealing on visible joints runs $450 to $650 for a typical Nellis AFB home. If we’re opening drywall or crawlspace access, the price moves toward $700 to $1,150. What actually matters is this: the price is written before work starts, and it does not move at the door. You’ll know the cost of the full job before we touch a single joint. We don’t bid per vent and we don’t offer a teaser number that doubles once a technician is inside. Call (775) 383-5847 for a free estimate and we’ll put a real number in writing.
We Also Serve Cities Near Nellis AFB
Our Duct Sealing crews regularly run to North Las Vegas, Henderson, and Boulder City. If you live just off base or split time between Nellis AFB and one of those communities, Nellis AFB residents get the same written pricing and the same 365-day guarantee no matter which side of the gate your home sits on.
Serving Nellis AFB, NV - Our Local Coverage Area
We’re based in the Nellis AFB 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 Nellis AFB
Because the housing stock on base is 50 to 70 years old and it’s been exposed to Mojave Desert conditions for every one of those years. Older joint materials fail under 140°F attic heat, and the fine silt that blows across the dry lake beds works its way into every seam. Las Vegas has newer construction with better factory sealing. Nellis AFB has mid-century duct systems that are actively leaking. Sealing is often the only fix that stops the dust cycle at the source. Call (775) 383-5847 for a free estimate.
Yes. Cleaning removes what’s already inside the ducts. Sealing prevents new silt from entering through gaps and failed joints. If your dust returns within days of a cleaning, the leak is pulling unfiltered attic air and silt back into the system. Seal the leak and the dust stops. It’s that direct. Our mastic seals hold under attic heat and close the entry points that allow that powder-fine silt to bypass your filter.
Base housing inspection requirements vary by unit and by the housing office’s current checklist. What we can tell you is that military housing standards emphasize clean, functional systems and no outstanding maintenance flags. If your move-out inspection raises a duct condition issue, we seal to the standard the housing office expects: accessible joints sealed, connections secure, and a written record of the work completed. The best way to know your specific unit’s requirements is to review your housing packet and then call us. We’ll give you a written quote for any sealing work needed.
We replace the crushed section. Crushed flex under a crawlspace cannot be sealed back into round. It’s collapsed, and the restricted airflow that causes needs to be corrected with a new section of properly sized flex or rigid duct. On a recent job under a 1960s duplex near base housing, we found a six-foot run flattened to less than two inches in the middle. Replacing it restored the airflow the system was designed for and eliminated the frozen-coil problem the homeowner had chased for two summers.
No. Duct sealing is quiet work. We’re not running a sheet-metal shop or a vacuum machine large enough to be heard off your property. The job involves brush work, mastic application, and small reinforcement hardware. We’re familiar with the noise restrictions on base and we operate well under them. You’ll hear us talking, not hammering. Call (775) 383-5847 to schedule a visit.
What Sealing Costs on a Nellis AFB Home
Here’s a straight look at what you can expect to pay in this market. These are the real ranges, not teaser numbers.
- Visible joint sealing only: $450 to $650
- Return plenum repair and reconnection: $500 to $800
- Full-system sealing with access openings: $700 to $1,150
- Crushed flex run replacement (per section): $180 to $320
- Camera inspection with written report: Included with sealing quote
The price stays where it started. No added charges once the work begins, and no per-vent billing. You get one number for the whole job, written down, before anything gets touched.
Nellis AFB Duct Sealing, Done by the Book
Roy Castellanos leads a team that treats base housing with the respect it deserves. Your home on Nellis AFB is not a test site for a sales pitch. It’s a structure with 60-year-old ducts, Mojave silt, and a family breathing whatever those ducts leak. We inspect, we price in writing, we seal, and we stand behind the work for a full year. If a sealed joint fails within 365 days, we return at no charge. That’s our 365-Day Done Right Promise, and it’s the same promise we make on Cottonwood Court, on Fitzgerald Boulevard, and anywhere else on base we’re called.
Call (775) 383-5847. A live person answers, and your estimate is free.
Written by Roy Castellanos, Owner at Hollis Air Duct Henderson, serving Nellis AFB with written pricing and the 365-Day Done Right Promise.