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.
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AfterFast, Reliable Duct Sealing Across Henderson
We’re the Duct Sealing crew Hollis Air Duct Cleaning dispatches from our Las Vegas office to homes across Henderson every day. Most Henderson calls get scheduled within 48 hours, and our trucks carry mastic, mesh tape, and pressure-testing gear so we can seal and verify in one visit. We’ve worked in Green Valley ranch homes, Anthem two-stories, and the older ranches near Water Street, so we know what Henderson ductwork looks like after twenty years of 105°F summers and desert dust storms. Call (361) 326-5060 for a free estimate, and we’ll give you a written price before any work starts.
Why Hollis Air Duct Cleaning Is Henderson’s Preferred Duct Sealing Company
Henderson homeowners call us back because we show up inside the window, price in writing, and leave the site clean. That’s The Garrison Standard, and it’s how every Hollis crew operates.
Our technicians are background-checked and uniformed, so you know who’s walking through your door. We answer phones with a live person 24 hours a day, seven days a week, no voicemail loops. Every duct sealing job carries our 365-Day Done Right Promise in writing: if the seal fails or the pressure test drops within a year, we return and make it right at no charge, including a free second visit.
We don’t bait and switch. The price we write down before work starts is the price you pay. No per-vent add-ons, no surprises when the van is in your driveway.
HVAC Duct Sealing in Henderson
HVAC Duct Sealing in Henderson means closing the gaps, cracks, and failed joints in your forced-air system so cooled air reaches your rooms instead of leaking into your attic or garage. In Henderson’s climate, this matters more than in most cities: summer attic temperatures regularly top 140°F, and every cubic foot of chilled air you lose to a leaky duct is air your compressor has to replace, which shows up on your NV Energy bill.
We seal with mastic and reinforced mesh tape, not duct tape, which dries and fails in desert heat. For flex-duct connections, we check the inner liner condition first, because sealing over degraded material traps debris and guarantees failure.
A typical HVAC duct sealing job in Henderson runs $450 – $850 for a single system, depending on duct accessibility, the number of joints to treat, and whether we need to replace degraded flex runs. Homes in Anthem and Inspirada with extensive builder-grade flex duct often land in the upper half of that range.
Pressure Testing After the Seal
We verify every sealing job with a blower-door or duct-blaster test so you see the before-and-after leakage numbers. A well-sealed system in Henderson should hold pressure with minimal loss. We document the results and leave you the paperwork.
Attic Access and Summer Scheduling
Henderson attic work is brutal in July and August. We schedule sealing jobs for morning hours when possible, and our crews carry hydration and heat-monitoring gear per The Garrison Code. If your ductwork is in a conditioned crawl space or garage soffit, we note that during estimate and price accordingly.
Duct Repair in Henderson
Duct Repair in Henderson addresses the physical damage that sealing alone won’t fix: crushed flex duct from roofers or storage activity, corroded metal joints in older Pittman and Water Street ranches, and completely separated connections where desert heat cycling has pulled fittings apart. We see crushed ducts monthly in Green Valley and Seven Hills attics where homeowners have stored holiday decorations on top of flex runs.
Repair costs in Henderson typically run $200 – $500 per damaged section, with full flex-duct replacement on a single run ranging $350 – $700 depending on length and attic difficulty. Metal duct repair with custom-fabricated replacement sections runs higher, usually $400 – $900, especially in older homes where original fittings are no longer standard.
We always inspect with a camera before quoting repair. You see what we see. Then we write the price. Then we start.
Corroded Metal in Older Homes
The 1960s and 70s ranch homes near downtown Henderson and the Pittman area often have galvanized metal ductwork that corrodes at joints from decades of alkaline dust exposure. Patching with tape is temporary. We cut out corroded sections, fabricate replacements, and seal with mastic for a permanent fix.
Flex Duct Replacement vs. Repair
When builder-grade flex duct in Anthem or Inspirada has degraded internally from heat off-gassing, surface sealing is worthless. We replace the failed run, seal the new connections, and pressure-test. The black residue you see is liner breakdown, not mold. More on that below.
Trusted Brands We Service in Henderson
Our Henderson trucks stock sealing and repair materials from Rotobrush, Nikro, and Abatement Technologies, plus filtration products from Honeywell and Aprilaire for homeowners who want to upgrade while we’re sealing. We don’t run to the supply house mid-job. That means faster turnaround for Henderson customers and no return trips because we were missing a fitting. If your system uses Guardsman filtration components, we carry those too.
Common Duct Sealing Problems We See in Henderson Homes
- Construction debris locked in unflushed ducts. In Green Valley, Anthem, and Inspirada, homes built from the 1990s through 2010s often have ductwork that never got properly cleaned before move-in. Sealing without source removal traps drywall dust and stucco grit, and Henderson’s stricter dust-control ordinances tied to the Lake Mead basin require us to document and dispose of that debris more carefully than crews working in Las Vegas proper.
- Heat-degraded flex duct in newer communities. Builder-grade flex duct in Anthem and Inspirada attics off-gasses and degrades within 8 – 10 years from 110°F-plus heat, leaving black residue homeowners mistake for mold. Sealing over this material traps the residue and guarantees seal failure. We replace the degraded runs first.
- Corroded metal joints in older ranches. The 1960s-70s homes near Water Street and Pittman have original metal ductwork that corrodes at joints from alkaline desert dust. Sealing without repairing those joints pulls dust straight into supply and return ducts, and your filter can’t catch what enters after the air handler.
- Incomplete sealing after wind events. Henderson’s spring dust storms push fine dust through return vents and condenser units. If registers and air handler cabinets aren’t sealed too, duct sealing alone won’t stop the load. We check the whole system boundary, not just the ducts.
Pricing for Duct Sealing in Henderson, NV
A typical duct sealing job in Henderson runs $450 – $850 for a single HVAC system. Duct repair ranges $200 – $500 per section, with full flex-duct replacement on a single run at $350 – $700. Metal duct repair in older homes runs $400 – $900. What moves you within these ranges: attic accessibility, number of joints and connections, whether flex duct needs replacement, and if we need to seal registers and air handler cabinets to complete the system boundary.
We give one flat price per system, agreed in writing before work starts. No per-vent pricing. No add-ons at the door. Estimates are free, and we show you camera footage of what we found so you understand why the price is what it is. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Henderson
Our crews work throughout the Las Vegas Valley. We regularly seal ducts in Henderson, Boulder City, Las Vegas proper, Nellis AFB, and North Las Vegas. Scheduling and dispatch run from our Las Vegas office, with local Henderson crews for faster response.
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
Desert heat cycling expands and contracts duct joints more aggressively than mild climates, and Henderson’s 105°F-plus summers bake attic ductwork until connections loosen. The alkaline dust is abrasive and accelerates seal degradation. Most Henderson homes benefit from a professional seal inspection every 5 – 7 years, or sooner after major dust storms or if energy bills spike unexpectedly. Call (361) 326-5060 for an exact quote – estimates are free.
Almost certainly not. In Anthem and Inspirada, builder-grade flex duct inner liners degrade from years of 110°F-plus attic heat, off-gassing and leaving a fine black residue that looks like mold but is actually liner breakdown. We were called to a 2005-built stucco home in Anthem where the homeowner complained of black specks blowing from supply registers. Our tech ran a camera inspection, found degraded flex liner, replaced the failed runs, sealed every joint with mastic and mesh, and verified with a blower-door test that the system held pressure. No more specks, and the air handler stopped short-cycling. Call (361) 326-5060 for a camera inspection.
Properties on unpaved roads near the edge of Henderson load dust and pollen at 2 – 3 times the rate of paved suburban streets, so we recommend duct seal inspection every 3 – 4 years instead of 5 – 7. Outbuilding systems with separate air handlers need the same schedule. The dust is finer and more constant, and leaky return ducts in outbuildings pull that load straight into living spaces. Call (361) 326-5060 to schedule – we’ll check main house and outbuilding systems in one visit.
Yes, but only as part of a complete system approach. Sealed supply ducts prevent conditioned air loss, but sealed return ducts and air handler cabinets are what prevent unfiltered desert dust, including valley fever spores, from bypassing your filter. Henderson’s stricter dust ordinances mean we document debris disposal carefully, and we always check the full system boundary, not just the visible duct runs. Call (361) 326-5060 for an assessment of your complete envelope.
Duct cleaning removes debris that’s already inside; duct sealing prevents new debris from entering through leaks and keeps conditioned air where it belongs. In Henderson’s master-planned communities, we often find homes that need both: construction debris never flushed from original build, plus heat-loosened joints pulling in new dust. We clean first, then seal, then pressure-test. One flat price per system, written before we start. Call (361) 326-5060 for a free estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Henderson since 2004.