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.
Aprilaire Duct Sealing & Repair: The Henderson Owner’s Guide
If your Aprilaire duct sealing has failed, we stock the materials and the know-how to bring it back to spec. Typical installed repair and sealing work in Henderson runs $450 – $1,100 depending on whether we’re re-masticing a few joints or re-sealing a full trunk line, and most jobs are completed in a single visit. The usual discovery is a homeowner noticing rooms that never hold temperature, supply vents with no airflow, or a dust film returning days after a cleaning. You’ve put money into an Aprilaire system because it’s built better than the box-store stuff. When a seal lets go, the fix should match that standard, not become a three-week guessing game.
We’re an independent service provider, not affiliated with Aprilaire corporate. What that means in practice: we tell you straight what’s compatible, what’s worth replacing, and what’s not worth spending money on.
Which Aprilaire Models This Applies To
Aprilaire’s duct sealing and repair work spans their broader air management lineup, and the compatibility question usually comes down to two things: the diameter of the trunk and branch lines, and whether you’re dealing with rigid sheet metal or flexible duct. Most Aprilaire installations we see in Henderson pair with 6-inch to 8-inch round branch lines off a rectangular trunk, though the newer high-efficiency setups going into homes near Inspirada and Cadence run 10-inch mains that need a different tape and mastic approach. Before we quote anything, we check the collar size where the branch meets the trunk and the condition of the takeoff fittings.
OEM vs. aftermarket: For mastic and UL-rated foil tape, the aftermarket product is functionally identical to what Aprilaire specs at the factory. We use commercial-grade mastic and tape rated for the temperature swings your attic sees in a Henderson summer. Where OEM matters is specialty collars and plenum adapters. If you need a specific Aprilaire takeoff fitting, we’ll tell you and we’ll get it. If the generic equivalent does the same job for less money, we’ll tell you that too. Roy Castellanos has a rule about this: if you can’t explain what you’re doing and why, you probably shouldn’t be doing it. Applies to us just as much as it applies to anyone else touching your system.
We also stock and install parts for Lennox, Trane, and Carrier systems, so if your setup is a mixed-vendor install, we’re not going to tell you we can only fix half of it.
Styles & brands we work with
Signs Your Aprilaire Duct Sealing & Repair Is Failing
- Rooms at the end of the run stay warm in summer while the thermostat swears it’s 74. Air is leaking out of a joint or seam before it ever reaches that bedroom. The system is working harder than it should, and you’re paying for conditioned air that’s going into the attic.
- Dust returns to surfaces within three or four days of cleaning. A broken seal on the return side pulls unfiltered attic air into the house. It’s not that your house is dusty. It’s that the ductwork is inhaling the attic.
- Whistling or a faint hiss near the supply plenum when the blower kicks on. That’s air forcing through a gap it shouldn’t be. In older Henderson homes near Green Valley, we regularly find seams that separated years ago and have been leaking quietly ever since.
- Your energy bill climbs without a change in usage. Leaky ducts typically account for 20 to 30 percent of the air your system moves. That’s real money every month, and in a Henderson summer it adds up fast.
- Visible gaps, flaking mastic, or hanging tape in the attic. Mastic dries out and cracks over time, and foil tape loses adhesion after years of temperature cycling. If you can see it separating, it’s already failed.
Replacement Cost & What’s Included
Most Aprilaire duct sealing and repair jobs in Henderson land between $450 and $1,100, installed. Here’s what actually drives the number:
- Number of joints and seams being addressed: $45 – $85 per access point depending on accessibility.
- Full trunk line re-seal: $600 – $1,100 for complete mastic application on all accessible seams and takeoffs.
- Return-side work: $200 – $450 to seal the return plenum and accessible return runs.
- Specialty Aprilaire collar or adapter replacement: $75 – $180 per fitting including labor.
Every quote is written down before work starts. The price on that sheet is the price you pay, whether the job takes two hours or four. No packing up and then discovering a surprise surcharge. Our 365-Day Done Right Promise covers the work: if a seal fails within the year, we come back and make it right at no charge, including the second visit. That’s in writing on every job.
See the difference
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After
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After
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AfterDIY or Call Us?
You can safely do a visual inspection. Climb into the attic on a cool morning with a flashlight and look for gaps, flaking mastic, or tape that’s peeling. That tells you whether there’s a problem. What you shouldn’t do is attempt to re-seal high or hard-to-reach sections yourself. Duct sealing is not dangerous the way a garage-door spring is, but working in a 130-degree Henderson attic with sharp sheet metal edges and limited footing isn’t worth the risk to save a couple hundred dollars. We also see a lot of homeowners use the wrong product on the first try. Hardware-store duct tape is not an air seal. It dries out, shrinks, and peels within a season. The right mastic and UL-rated tape, applied correctly, is what actually holds. If you’ve already tried a repair and it didn’t hold, we’ll map the system before we touch anything and find every leak, not just the one you spotted. You can call any time to walk through what you’re seeing. The number is (775) 383-5847.
FAQs
A properly applied mastic seal on an Aprilaire system in Henderson typically lasts 12 – 20 years, but the attic heat shortens the life of tape products significantly. Foil tape in a Nevada attic sees temperature swings from 40 degrees in winter to 140-plus in summer, and the adhesive breaks down faster here than in coastal climates. Mastic, because it cures into a hardened shell rather than relying on adhesive, holds up much better. If you have failing seals, the question is usually whether someone used tape where mastic was needed. We can tell you what you have and what it’ll take to make it right. Call (775) 383-5847 for an honest assessment.
Most failed seals on Aprilaire systems can be repaired without replacing the duct itself. If the metal is intact and the failure is at a seam, collar, or takeoff, we remove the old mastic or tape, clean the surface, and apply a fresh seal. Replacement only becomes necessary when the duct material itself is damaged, crushed, or rusted through. We’ll show you exactly what we’re looking at and explain why each section does or doesn’t need replacement. You won’t be sold a replacement where a repair does the job.
A focused re-seal on a few problem joints takes 2 – 3 hours. A full trunk line re-seal on a larger Henderson home can run a full day. We arrive inside the quoted window, map the system before starting, and leave the site clean. You’ll know the price before we begin, and the window before we show up.
Yes. Our trucks carry commercial-grade mastic, UL-rated foil tape, and common Aprilaire takeoff collars and adapters. For uncommon fittings, we can usually source them same-week rather than same-day, and we’ll tell you upfront if that’s the case. No promises of a part we don’t have. When Roy runs the inspection, he’ll tell you what’s on hand and what needs to be ordered before we touch the system.
Get Your Duct Sealing Repaired Right
If your Aprilaire system is leaking air, you’re paying for comfort you’re not getting. We’ll give you a written price, do the work by the book, and stand behind it for a full year. Call (775) 383-5847 for a free estimate. A live person answers, and we’re here around the clock.
Written by Roy Castellanos, Owner, Hollis Air Duct Henderson at Hollis Air Duct Henderson, serving Henderson and nearby areas.