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 Spring Valley
Duct sealing in Spring Valley typically runs $450 – $1,200 for a full system, depending on how many runs need repair and whether insulation is part of the job. We’re in Spring Valley neighborhoods regularly, and we know exactly what these attics do to ductwork: 140°F summers bake foil-faced flex duct until it splits, and the dust that follows finds every gap. If your rooms heat unevenly or your registers blow dust, call us at (775) 383-5847 and we’ll give you a written price before any work starts.
Key Takeaways
- Whole-system duct sealing in Spring Valley typically costs $450 – $1,200; partial sealing runs $200 – $450.
- Spring Valley’s 1990s tract homes have foil-faced flex duct that splits under sustained attic heat above 140°F.
- Evaporative cooler scale must be removed before mastic sealant is applied, or the seal fails within a season.
- Every job gets a written price before work begins and is covered by the 365-Day Done Right Promise.
Styles & brands we work with
Why Hollis Air Duct Henderson Is Spring Valley’s Preferred Duct Sealing Company
We’ve worked in Spring Valley long enough to know the difference between a house off South Rainbow Boulevard and one near Desert Breeze Park. The ductwork is different. The dust is different. The way the attic holds heat is different. That’s why we don’t treat Spring Valley like every other zip code in the valley. Roy Castellanos leads our team with a simple standard: arrive inside the window, price it in writing, do it by the book, and leave the site clean. We answer our phones 24/7 with a live person, not a voicemail loop.
Every technician who steps into a Spring Valley home is background-checked and uniformed. You’ll know who’s coming before they arrive. And every sealing job, whether it’s a partial patch or a full supply and return sealing, is covered by our 365-Day Done Right Promise. If the seal fails within a year, we return at no charge. That’s not a marketing line. It’s in writing on the job sheet.
Duct Sealing Services in Spring Valley
Duct Sealing Services in Spring Valley means finding every leak in your duct system and closing it with mastic, not tape that peels in a hot attic. In Spring Valley’s 1990s and early 2000s tract homes, leaks are rarely isolated. A split in one section of flex duct pulls dust from the attic into your supply air, and the pressure loss forces your blower motor to run longer trying to reach the thermostat setpoint. We find the leaks, clean the surfaces, and seal them properly.
Split and Brittle Flex Duct Repair
Original foil-faced flex duct in Spring Valley homes built between 1985 and 2005 is reaching the end of its service life. Attic temperatures above 140°F bake the foil until it cracks and separates at the seams. When that happens, conditioned air dumps into the attic and desert dust gets pulled into the return path. We repair what can be sealed and recommend replacement where the run has collapsed or crushed.
Full Supply and Return Sealing
This is the full-system job where we seal every joint, boot, and plenum connection from the air handler to each register. Most Spring Valley homes we see need this level of work on the first visit. The cost typically runs $450 – $1,200 depending on duct length and access. We give you that range in writing before we start, and the number does not move once we’re inside.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
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 Spring Valley
Duct Insulation in Spring Valley is the difference between your conditioned air arriving at the register at 55°F or 70°F. Most of Spring Valley’s duct runs are in unconditioned attics that hit 145°F in July and August. If the insulation on your ductwork is compressed, water-damaged, or missing, you’re paying to cool the attic, not the living room. Re-insulating exposed or damaged runs runs $150 – $400 for partial coverage and $400 – $900 for a full system re-wrap, depending on duct length and access.
Attic Run Re-Wrap
We pull back the old fiberglass wrap, inspect the duct underneath for damage, and re-wrap with new insulation. If the duct itself has split, we seal first and insulate second. Doing it in that order matters in Spring Valley, because wrapping over a leaking duct just hides the problem while the air handler keeps working overtime.
Plenum and Boot Insulation
The plenum is the metal box that sits on top of your air handler, and the boots are where duct connects to each register. These are thin metal surfaces in a superheated attic, and when they’re not insulated, they sweat or radiate heat into your supply air. We seal and insulate them as part of full system work, or as a standalone job where the rest of the ductwork is sound.
Trusted Brands We Service in Spring Valley
We seal ducts from every major residential system, including Nikro, Honeywell, and Aprilaire components. When we’re working on an air handler, we use Abatement Technologies equipment for source removal before any sealant touches the duct. The point isn’t brand loyalty, it’s that the tools we use match what commercial crews run. If your Spring Valley duct system was installed with original builder-grade flex, we have local parts and professional-grade mastic on the truck to get the repair done without a second trip.
See the difference
Before
After
Before
After
Before
AfterCommon Duct Sealing Problems We See in Spring Valley Homes
- Brittle foil-faced flex duct splitting at the seams. Homes built between 1985 and 2005 were fitted with foil-faced flexible duct that sits in attics reaching 145°F. After 20 years, the foil separates from the inner liner, and the duct splits open. We find this constantly in neighborhoods like The Lakes and Spanish Trail.
- Mineral scale from evaporative coolers inside the duct walls. Many Spring Valley homes run evaporative coolers during the dry summer months. Cooler pads release mineral-laden moisture that dries into scale inside the ducts. If we seal over that surface, the mastic debonds within a season. Source removal comes first.
- Crushed runs in zero-lot-line attics. Spring Valley’s dense zero-lot-line construction means many attics double as storage. Boxes, luggage, and unused furniture crush flex duct runs flat. We need to replace or repair the crushed section before sealing the rest; patching over a crushed run just moves the leak downstream.
- Leaky boots at the register connection. Even in otherwise sound ductwork, the boot-to-drywall connection where each register meets the duct is a frequent leak point in Spring Valley. Hot attic air gets pulled through gaps around the boot, so the first air out of the register is warm and dusty.
Pricing for Duct Sealing in Spring Valley, NV
Duct sealing in Spring Valley’s single-family tract homes typically runs $450 – $1,200 for whole-system sealing and $200 – $450 for partial work on fewer than five runs. If you’re adding duct insulation, expect $150 – $400 for partial coverage or $400 – $900 for a full re-wrap. What drives cost: total linear feet of duct, attic access, whether the evaporative cooler has left scale that needs remediation, and whether any runs have crushed and need replacement rather than sealing. We write the exact price before any work starts, and the number on that sheet is the number you pay. Call (775) 383-5847 for a free estimate.
We Also Serve Cities Near Spring Valley
Our crews cover the entire west side of the Las Vegas Valley. If you’re in Henderson, Paradise, Boulder City, or Nellis AFB, we can schedule duct sealing in Spring Valley and surrounding communities with the same written pricing and 365-Day Done Right Promise. Scheduling is coordinated from our Las Vegas office, so the process is the same no matter which neighborhood you call from.
Serving Spring Valley, NV - Our Local Coverage Area
We’re based in the Spring Valley 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 Spring Valley
Yes. Evaporative coolers leave mineral scale on the inside of duct walls, and mastic applied over that scale will fail within a season. In Spring Valley, where evaporative coolers are common in older homes, we run a source-removal pass with Abatement Technologies equipment to clear the mineral deposits and dust before sealing. The prep adds roughly $100 – $200 to the job and is the difference between a seal that lasts and one that opens back up by fall. Call (775) 383-5847 for a precise quote on your system.
Yes, but the split sections need replacement, not patching. When foil-faced flex duct has gone brittle and split, the interior liner is compromised, and sealant cannot bridge that gap reliably. We replace the failed run, then seal all adjacent connections with mastic. Trying to seal over a split duct just moves the leak to the next seam. The fixed price we quote before starting covers both the replacement and the sealing around it.
Two structural reasons. First, Spring Valley’s post-1990s tract development used foil-faced flex duct almost universally, and that material degrades faster under sustained attic heat than the rigid metal ducts found in many older, grid-platted Las Vegas neighborhoods. Second, zero-lot-line construction in Spring Valley concentrates attic heat and leaves less space for duct routing, increasing the chance of crushed or tight runs. When attic temperatures exceed 140°F day after day, foil-faced flex simply gives out sooner.
Significantly, yes. The open desert parcels surrounding parts of Spring Valley generate fine dust that finds its way into attics through vents and gaps. When ducts have leaks on the return side, that dust gets pulled directly into your supply air and blown through your registers. Sealing the return side stops the dust from entering the system entirely, and sealing the supply side stops conditioned air from leaking out. Most customers notice within the first week that dust stops building up on furniture near the vents. Call (775) 383-5847 to have us inspect your system.
When your ducts leak, the blower motor runs longer to reach the thermostat setpoint because conditioned air is escaping into the attic. That means more energy consumed, more wear on the motor, and higher bills during Spring Valley’s long cooling season. After sealing, the system reaches temperature faster and the blower cycles normally. In a 1994-built stucco home off South Rainbow Boulevard in The Lakes, our camera inspection found split flex duct dumping air into a 145°F attic. After sealing every supply and return joint with mastic, the blower stopped running constantly and rooms that had varied by seven degrees settled within two.
Written by Roy Castellanos, Owner at Hollis Air Duct Henderson, serving Spring Valley since 2004.