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 Winchester
Duct sealing in Winchester, NV typically costs between $450 and $1,200 for a whole-home job, depending on how many leaks we find and how accessible your ductwork is. Most Winchester homeowners call us after a Winchester Dryer Vent Cleaning reveals gaps, disconnected runs, or rusted-through sections they didn’t know existed. If you live in an older home near Boulder Highway or Desert Inn Road, the odds are high your ducts are leaking air you’re paying to cool. Call Hollis Air Duct Henderson at (775) 383-5847 for a written quote before any work starts.
We’ve worked in enough Winchester homes to know what decades of desert air does to ductwork. Our crews arrive with camera inspection equipment, sealing mastic, aluminum tape, and negative-air machines, and we quote the job in writing before we touch anything. No price changes at the door. That’s how Roy Castellanos runs this location, and that’s how it stays.
Why Hollis Air Duct Henderson Is Winchester’s Preferred Duct Sealing Company
Winchester homeowners tend to research before they call. They want to know the crew showing up is accountable, background-checked, and not going to invent problems once they’re in the attic. Our technicians are uniformed and background-checked on every job. We put the price in writing first, and the number on that paper is the number on the invoice.
We answer the phone with a live person around the clock. When a Winchester homeowner calls about a return duct pulling attic dust into the living room, they’re not left in a voicemail loop. They get a straight answer and a scheduled window we actually keep.
Every sealing job we perform in Winchester carries the 365-Day Done Right Promise in writing. If a sealed joint opens up or a repair fails within a year, we come back and fix it at no charge. That includes a free second visit. Not negotiated. Not conditional. Written down before we start.
Styles & brands we work with
Duct Repair in Winchester
Duct repair in Winchester homes often starts with a camera inspection because the damage is rarely visible from the living room. We find pinhole rust in galvanized steel ducts from the 1950s through the 1980s, crushed flex runs in newer townhome construction, and joints that were never properly connected in the first place. A basic duct repair in Winchester runs $150 to $400 per section, depending on access. A full repair-and-seal package for an older home usually lands between $600 and $1,200.
Camera Inspection Before Cutting
We don’t guess. A camera run through the return and supply sides shows us exactly where the leaks are, what’s getting pulled in, and whether repair or replacement makes more sense. For Winchester homes with original galvanized ducts, the camera often catches rust holes at the seams that a visual attic inspection would miss.
Source Removal Before Sealing
Sealing over contaminated ducts traps the problem inside. Our crews run negative-air source removal first, pulling out sand, fiberglass, and dust that’s accumulated over decades. Then we seal. Then we test.
At a 1978 home off Desert Inn Road, our crew found a return-air duct that had separated at a joint in the attic, pulling in sand and fiberglass insulation every time the air handler ran. We used source removal with negative pressure to clear the contaminated air, then sealed the gap with a silicone-based mastic and applied aluminum tape to all accessible seams. The homeowner reported a visible drop in dust on furniture within two weeks and a more even temperature throughout the house.
If your Winchester home needs Duct Sealing, we’ll find the leaks before we quote the fix.
Air Duct Sealing in Winchester
Air duct sealing in Winchester homes addresses the leaks, gaps, and disconnected joints that let attic air, crawlspace dust, and fiberglass particles into the air you breathe. We use silicone-based mastic and aluminum tape applied to every accessible seam on both the supply and return sides. A supply-side-only sealing job in Winchester typically runs $350 to $700. Full supply and return sealing averages $600 to $1,200 for a standard single-story ranch home.
Return-Side Sealing on Boulder Highway Homes
On the east side of Winchester near Boulder Highway, many 1970s-era homes still have original return-air ducts that were never sealed. They draw dust directly from crawlspaces and attics, and the only way to know is to look. Our camera inspections routinely confirm this, and sealing those returns is often the single biggest air-quality improvement a homeowner can make. This is one of the most common findings we document in Winchester, and one that only Winchester duct sealing can permanently correct.
Supply Plenum and Register Gaps
Hard water mineral deposits from AC condensation, common in the Las Vegas Valley, build up inside supply ducts over time. Those deposits harden, crack sealants, and open gaps at registers. We scrape, clean, and reseal those register openings as part of a full sealing job. If your registers have visible white crust around them, that’s a sign the air you paid to cool is leaking into the wall cavity.
Trusted Brands We Service in Winchester
We work on all major duct systems found in Winchester homes, including galvanized steel, rigid aluminum, and flex duct. Our crews run Rotobrush rotary brush systems and Nikro negative-air machines, the same professional-grade equipment commercial crews use, not hardware-store gear. For filtration upgrades, we stock and install Honeywell and Aprilaire products. Because we carry this equipment on the truck, Winchester customers get the job done in one visit, not two.
See the difference
Before
After
Before
After
Before
AfterCommon Duct Sealing Problems We See in Winchester Homes
- Original galvanized steel ducts from 1950s-1980s homes corroding at pinhole rust spots. These pinholes sit on the return side and quietly pull attic dust and insects into the airstream for years before anyone notices.
- Improperly installed flex duct in newer townhomes sagging and kinking. Restricted airflow, leaks at connection points, and rooms that never quite cool right are the telltale signs.
- Hard water mineral buildup cracking old sealant at supply registers. Desert AC condensation leaves deposits that harden over time, opening gaps exactly where air should be flowing into the room.
- Unsealed return-air ducts in homes near Boulder Highway. Many original construction returns were never sealed at all, pulling crawlspace and attic air straight into the living space.
Pricing for Duct Sealing in Winchester, NV
Whole-home duct sealing in Winchester runs $450 to $1,200 for most single-family homes. Supply-side-only sealing typically falls between $350 and $700. Duct repair work alone lands at $150 to $400 per section. What moves the number: access to the attic or crawlspace, how many separated joints we find, and whether the ducts are original galvanized steel or newer flex runs. We give you a written price based on a camera inspection before we start any work. Call (775) 383-5847 for a free estimate, and we’ll put the number on paper before we touch a tool.
We Also Serve Cities Near Winchester
Hollis Air Duct Henderson serves Winchester and the surrounding valley, including Henderson, Paradise, Boulder City, and Nellis AFB. Scheduling for Winchester is coordinated from our Las Vegas office, with crews serving Winchester locally. If you’re in a neighboring community and need Duct Sealing in Winchester service standards, call us and we’ll get you on the schedule.
Serving Winchester, NV - Our Local Coverage Area
We’re based in the Winchester 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 Winchester
If your home was built between the 1950s and 1980s and still has original ductwork, the answer is usually both. A camera inspection shows whether leaks are pulling in attic dust, crawlspace air, or insulation particles. Cleaning removes what’s already inside; sealing stops more from getting in. We recommend a camera inspection first, then we quote both jobs in writing based on what we actually see. Call (775) 383-5847 to schedule one.
Original return-air ducts that were never sealed. Many homes built near Boulder Highway in the 1970s still have returns drawing air directly from crawlspaces and attics. We confirm it with a camera, then seal every accessible seam with mastic and aluminum tape. It’s the single highest-impact fix for dust and indoor air quality in older Winchester homes.
Yes, directly. Winchester’s frequent wind events push fine desert sand and particulates into attics and crawlspaces. When ducts leak on the return side, that dust gets pulled into your HVAC system and distributed through every room. Sealing the returns cuts that pathway off. Homeowners typically notice less dust on furniture within two to four weeks.
Yes. Hard water condensation inside AC supply ducts leaves mineral deposits that harden, crack old sealants, and open gaps at register boots. If we find this during a sealing job, we remove the deposits before resealing. Sealing over mineral buildup just means the new sealant fails early. We address the cause, not just the symptom, and the 365-Day Done Right Promise covers that work in writing.
Both. Return-side leaks pull contaminated air into the system, and supply-side leaks waste cooled air into attics and walls. A full sealing job covers every accessible seam on both sides. Supply-only jobs cost $350 to $700 in Winchester; full supply and return sealing runs $600 to $1,200 for most homes. Call (775) 383-5847 for a written quote based on a camera inspection of your system.
Written by Roy Castellanos, Owner at Hollis Air Duct Henderson, serving Winchester and the surrounding Las Vegas Valley.