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 Henderson
Duct sealing in Henderson typically costs $450 – $1,100 for a full system, depending on the size of the home and how many leaks we find. Most jobs on 1990s-era tract homes with flex-duct systems land in the $600 – $850 range. We schedule Henderson work Monday through Saturday, with a written price agreed before we touch anything. Call us at (775) 383-5847 and you’ll talk to a live person who can walk you through what your house likely needs.
Henderson’s housing stock has a specific problem: thousands of homes built in the 1990s and 2000s used flex duct with mastic-sealed joints. Mastic cracks. It dries out. And once a joint opens, conditioned air pours into the attic while desert dust gets pulled in. We’ve seen this enough in Green Valley, Anthem, Whitney Ranch, and MacDonald Ranch to know exactly where to look first.
Why Hollis Air Duct Henderson Is Henderson’s Preferred Duct Sealing Company
Roy Castellanos runs this crew, and he’s built the Henderson operation on a simple standard: show up inside the window, put the price in writing before work starts, and stand behind it for a full year. That’s the 365-Day Done Right Promise. If a sealed joint fails within 12 months, we come back at no charge. Not a prorated refund. Not a service fee. We fix it.
Our technicians are background-checked and uniformed. You know who’s walking into your house before the door opens. The equipment is commercial grade: Rotobrush rotary brush systems for source removal and Nikro negative-air machines for filtration. We don’t carry hardware-store gear into a Henderson attic, because this climate punishes shortcuts.
We serve all of Henderson, from Boulder Highway corridors up through the newer foothill communities. Dispatch is coordinated out of the Las Vegas metro office, but the crews working your ducts are Henderson-local and know the housing stock here. Scheduling runs inside a quoted window, not an all-day stand-around.
Styles & brands we work with
HVAC Duct Sealing in Henderson
HVAC Duct Sealing in Henderson is the process of closing every leak in your duct system: at flex-duct joints, at the air handler cabinet, at register boots, and where plenums meet the trunk lines. We use water-based mastic, not foil tape. Mastic goes on wet and dries into a flexible, airtight seal that holds. Foil tape lifts within one or two Henderson summers.
What a Henderson Sealing Job Involves
We start with a camera inspection of the duct system. The camera goes through the supply and return lines so we can show you exactly where conditioned air is escaping. Then we seal each joint at the source. No guessing. No sealing what doesn’t need it.
When You Need It Here
If your upstairs rooms never cool as well as the downstairs, that’s often a duct leak, not an undersized unit. If your July NV Energy bill is $400 and the house still feels stale, sealed ducts are usually the first fix. Henderson summers run the AC from May through October. Every leak is money going into the attic.
Duct Repair in Henderson
Duct Repair in Henderson means fixing what’s actually broken: collapsed flex runs, separated joints, crushed sections under attic storage, or gaps at the air handler cabinet from poorly fitted 1990s panels. Repairs run $150 – $450 for a single section, and a full-system repair plus sealing job lands in the $700 – $1,400 range depending on what we find.
Repairing Flex-Duct Separations
Flex duct sags between supports in Henderson’s heat. Over time, the inner liner separates from the outer jacket at connection points. We reconnect the liner, pull it snug, and seal with mastic. A separation leaks conditioned air continuously, and the fix pays for itself faster than most homeowners expect.
Air Handler Cabinet Leaks
1990s tract homes often have air handler cabinets with poorly fitted access panels. We seal the cabinet seams and panel edges so the blower isn’t drawing attic air into your supply stream. This is one of the most overlooked leaks in Henderson homes, and one of the easiest to correct.
Common Duct Sealing Problems We See in Henderson Homes
- Cracked mastic at flex-duct joints: Henderson’s swing between evaporative-cooler humidity in summer and bone-dry winter air causes mastic to crack over time. We find this in roughly six out of ten homes we inspect in Green Valley and Anthem.
- Foil tape failures from previous contractors: If a past crew used foil tape instead of mastic, it’s already failing. Low desert humidity and 110-degree attic temperatures break down the adhesive within a couple of seasons.
- Leaks at the air handler cabinet: Homes built in the 1990s often have air handler panels that don’t seat flush. Attic air gets pulled into the supply side, meaning you’re paying to cool your attic.
- Register boots that were never sealed at installation: The gap between the register boot and the drywall is a small leak on its own, but add up ten or twelve of them across a house and you’ve got a hole the size of a dinner plate bleeding conditioned air.
Henderson’s Evaporative Cooler Connection
Henderson sits at a slightly higher elevation than Las Vegas proper, which means cooler overnight temperatures and heavier use of evaporative coolers, especially in Green Valley and Anthem. Evaporative coolers push humid air through the duct system all summer. That humidity condenses on metal surfaces and at joints. If mastic wasn’t applied correctly, or if it’s aged, the moisture accelerates cracking and separation.
In a Green Valley home with an evaporative cooler, our camera inspection found condensation at several flex-duct joints where the original mastic had cracked. We used Rotobrush agitation tools for source removal, then sealed each joint with water-based mastic and verified it with a negative pressure test. No more humid air leaking into the attic. No more damp spots at the register collars. This is a Henderson-specific failure mode, and it dictates how we approach sealing work here. A company that only knows the Las Vegas desert profile won’t look for moisture-driven joint failure first. We do.
See the difference
Before
After
Before
After
Before
AfterTrusted Brands We Service in Henderson
We work on all duct systems regardless of original installer or brand, and we keep parts and sealants on hand for Henderson’s most common setups. The equipment we run includes Nikro negative-air machines for containing dust during sealing work and filtration products from Honeywell and Aprilaire for homes that need filter upgrades after a sealing job. Abatement Technologies gear is on the truck for more involved containment jobs. When you call for Duct Sealing, you’re getting a crew with commercial tools, not a homeowner-grade setup.
Pricing for Duct Sealing in Henderson, NV
A typical duct sealing job in Henderson runs $450 – $1,100 for a full system. Smaller single-story homes in the older corridors of Henderson land at the lower end. Larger two-story homes with long flex runs, especially in Anthem and MacDonald Highlands, run higher because the duct runs are longer and there are more joints to seal. Duct repair work adds $150 – $450 per section if we find collapsed or separated runs. The price is written before work starts, and it doesn’t move at the door. Call (775) 383-5847 for a free estimate with exact numbers for your floor plan.
Key takeaways:
- Full-system duct sealing in Henderson: $450 – $1,100, with most jobs falling between $600 – $850.
- Duct repair: $150 – $450 per section, depending on the damage.
- Price is written before work starts and covered by the 365-Day Done Right Promise.
- Henderson’s evaporative-cooler humidity makes mastic cracking more common here than in Vegas proper.
We Also Serve Cities Near Henderson
Our crews cover Henderson and the surrounding communities, including Boulder City, Nellis AFB, and North Las Vegas. If you’re in one of those areas and need duct sealing or repair, call (775) 383-5847 and we’ll get you scheduled with the same written pricing and one-year guarantee.
Serving Henderson, NV - Our Local Coverage Area
We’re based in the Henderson 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 Henderson
Yes. Sealing duct joints stops humid evaporative-cooler air from reaching the attic and condensing on cool surfaces. That condensation is what feeds mold growth at joints and register collars. A properly sealed system with water-based mastic removes the moisture pathway, which is the root cause. Call (775) 383-5847 and we’ll inspect your system for condensation points before recommending any sealing work.
Green Valley and Anthem have the most concentrated issues because those neighborhoods have the highest concentration of 1990s – 2000s tract homes with flex-duct systems and widespread evaporative cooler use. The combination of aging mastic and seasonal humidity swings creates more joint failures there than in the older neighborhoods along Boulder Highway, where many homes have shorter duct runs and converted systems.
We seal from the outside of the duct at every accessible joint, which means attic access is required. For leaks that are inaccessible, such as behind finished ceilings, we use aerosol sealant methods. But in Henderson’s tract homes, nearly all problematic joints are in the attic and reachable. We’ll show you camera footage of every leak before we seal it.
Water-based mastic properly applied typically holds for 15 – 25 years in Henderson conditions. That’s not theoretical; it’s what we observe when we revisit homes after a decade or more. The bigger variable is the original installation quality. If a previous crew used foil tape, it fails within one to two summers. Mastic done right outlasts the equipment it serves. Every sealing job we do is covered for a full year under the 365-Day Done Right Promise.
Yes, typically by 10 – 25% on cooling costs in Henderson, because sealed ducts stop conditioned air from dumping into the attic before it reaches your living space. The exact number depends on how many leaks we find and how much air your system moves. Homes with longer runs and multiple separations see the biggest drop. Call (775) 383-5847 for a free estimate, and we’ll give you a straight answer on what sealing your specific system is likely to save.
Get a Straight Answer on Your Henderson Ducts
If you suspect your ducts are leaking, or if you’ve been told they need sealing and want a second opinion with camera evidence, call Roy Castellanos and the team at Hollis Air Duct Henderson at (775) 383-5847. We’ll schedule inside a quoted window, inspect your system, show you what we find, and put a written price in front of you before any work starts. The price covers the job, and the 365-Day Done Right Promise covers us for a year after.
Written by Roy Castellanos, Owner at Hollis Air Duct Henderson, serving Henderson with written pricing and the 365-Day Done Right Promise.