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 Air Duct Cleaning Across Alviso
Air duct cleaning in Alviso runs $425 – $690 for a full single-family system, and that price depends on how many returns and supplies you have and what condition your original mid-century metal runs are in. Our crews know Alviso’s streets, from the slough-side blocks near the salt ponds to the older grid by the marina. We’re the team that shows up when the morning marine layer is still hanging over the bay and the registers are sweating. Call (877) 358-5491 if your ducts are making the house smell like a marsh at low tide.
This page exists because Alviso duct work is not like the rest of San José’s. The air here is wetter, saltier, and sits on top of you for months. That changes what needs cleaning, when, and whether cleaning is even the right call.
Why Duct Cleaning Milpitas Is Alviso’s Preferred Air Duct Cleaning Company
We’re based just up the road in Milpitas, which means our technicians don’t have to fight 880 traffic for an hour before they even reach your door. That matters in Alviso because the coastal fog and damp winter air don’t wait. When a homeowner off Taylor Street finds their supply vents smelling like wet galvanized metal, they want a crew that knows exactly what that smell means. We do. It’s rust and condensation working through older sheet-metal runs, and it’s common in the homes nearest the Alviso sloughs.
What we hear from Alviso customers is that our approach feels different from the usual duct-cleaning coupon pitch. We bring Rotobrush and Nikro equipment into the house, not a shop vac with a brush taped to a hose. We use negative-pressure containment and HEPA filtration at the air handler. And if we see rust-stained registers near a salt pond view, we check for actual wall thinning before we quote a cleaning. A lot of companies don’t bother with that step.
We also don’t sell per-vent pricing. You get one flat price for your whole system, agreed to before we start. If we find something that changes the scope, we stop, show you, and document it. That transparency is why Alviso homeowners who’ve been burned by bait-and-switch duct offers call us back.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Vent Cleaning in Alviso
Vent cleaning in Alviso is the process of removing built-up dust, salt residue, and sometimes mold spore film from register boxes, supply boots, and return grilles. In this part of the bay, vents often show a faint white bloom or rust specking that you won’t see in sunny North San José. That’s marine salt settling on damp metal. Our Air Duct Cleaning team treats vent work as a containment-first job: seal the register, run negative pressure, agitate, extract. No dust cloud through the living room.
Register and Boot Cleaning
Alviso homes with original floor registers from the 1930s through the 1950s tend to gather grime in the boot below the register, especially when the crawl space has been damp for a season. We remove the register, clean the boot by hand where necessary, and vacuum the first few feet of the run. It’s slow work on old homes, but it’s the only way to get the smell out.
Salt and Moisture Film Removal
The salt ponds put more than a view in the air. Salt particles ride the fog and settle inside ductwork. When the system runs, humidity bonds the salt to aluminum and galvanized steel. A standard vent cleaning in Alviso should always include a wipe-down of accessible interior register surfaces, not just a vacuum pass. That’s the difference between a fresh-smelling house and one that still whiffs of the bay an hour after the tech leaves. Vent cleaning as part of a full system runs $90 – $180 of the overall job, depending on register count and condition.
Ductwork Cleaning in Alviso
Ductwork cleaning in Alviso addresses the full run from air handler to room: supply trunks, return drops, and branch lines. In older Alviso homes, this often means working around original galvanized sheet-metal duct that has decades of accumulated dust, rust bloom, and the occasional flood wicking from a crawl-space event. Our crews handle it with source-removal methods, not blow-and-go. We capture what we remove at the air handler with a HEPA-filtered negative-air machine, so whatever comes out of your ducts doesn’t end up in your hall closet.
Post-Storm Interior Run Cleaning
After a winter storm pushes water into a crawl space along the slough, the first thing we check is whether the interior surfaces are even cleanable. Wet flex duct is often ruined. Solid metal trunk lines can usually dry out and clean up fine. We determine that with camera inspection and moisture readings, not guesswork. Then we clean or we replace. The documentation goes to you and, if needed, to your insurer.
Crawl Space and Trunk-Line Work
Alviso crawl spaces are low, damp, and often partially inaccessible. Running a full HEPA extraction on a trunk line in those conditions takes patience and the right tooling. We use Nikro agitation systems where they’re appropriate and Rotobrush for branch-line cleaning. The goal is the same: get the salt-laden dust and microbial film out, and leave the duct dry enough to stay clean. Expect $425 – $690 depending on system size and how many runs need attention.
Trusted Brands We Service in Alviso
Homes in Alviso carry a mix of systems: original sheet metal from the mid-century, later flex retrofits, and the occasional newer high-efficiency install with Aprilaire media cabinets or Honeywell filtration. We work with all of it. If you have an Aprilaire 213 or 413 filter housing, we’ll check the cabinet condition during the duct cleaning and tell you if the seal is shot. If you’re running Honeywell media filters, we can factor replacement into the job. For Abatement Technologies products, which we carry for contamination-control work, we can advise on whether your water-intruded ducts justify source-capture treatment or full replacement. We keep common filter sizes and flex-duct fittings on the truck, so we’re not driving back to Milpitas mid-job for parts.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Cleaning Problems We See in Alviso Homes
- Rust-stained registers and grilles near the salt ponds. The galvanized steel in Alviso ducts eats moisture from the air for years, and once the zinc layer is gone, the walls begin to thin. Cleaning won’t fix that. We check for structural rust before we quote a brush-and-vacuum job. In some cases, replacement is the only sane path.
- Flex duct saturated after crawl-space flooding. Flex liner is an insulation-wrapped bag, and once water gets inside, it doesn’t dry out. We pull a camera through any run that looks suspicious and mark it for replacement rather than running agitation tools through it. Cleaning wet flex just shreds it and moves microbial growth deeper.
- Musty odor from condensation on cool duct walls. Even when the house is dry, Alviso’s bay-level humidity condenses inside unconditioned ducts for much of the year. That’s the smell people describe as “the house smells like a basement.” Source-removal cleaning helps, but sealing and insulation are often the real fix.
- Salt-crusted joints and collars. Fog-driven salt builds up where sheet-metal sections meet, and it holds moisture against the metal. We see this often in homes within a few hundred yards of the ponds. It’s a sign to check for loose joints and air leakage while we’re in there, not just run a brush through.
Pricing for Air Duct Cleaning in Alviso, CA
A complete air duct cleaning for a typical Alviso single-family home runs $425 – $690. That covers supply and return cleaning, register and boot work, camera verification, and disposal. Larger homes or systems with long runs from a central plenum may push toward $800. If your job includes replacing water-damaged flex sections or patching rusted trunk line, that’s quoted separately after we show you the camera footage. What won’t happen: you won’t get a $99-per-system coupon that turns into $900 once we’re in the door. One flat price, agreed to before work starts. Call (877) 358-5491 for a free estimate.
We Also Serve Cities Near Alviso
Duct Cleaning Milpitas works throughout the South Bay. If you own a home in Milpitas, Berryessa, Downtown San Jose, or Los Altos, the same crew and the same equipment are available to you. Alviso’s humidity problems don’t stop at the city limits; neither do we.
Serving Alviso, CA – Our Local Coverage Area
We’re based in the Alviso 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 Air Duct Cleaning in Alviso
The answer depends on what’s inside them. Solid galvanized metal trunk lines usually dry out and clean up fine with negative-pressure extraction and agitation. Flex duct that’s been submerged or saturated is generally a loss and should be replaced, not cleaned. Our crew runs a camera through every run before we decide, and you’ll see the footage. If you file an insurance claim, we provide documentation and moisture readings. Call (877) 358-5491 and we’ll walk you through what a post-flood inspection covers.
In Alviso, the most likely cause is condensation inside unconditioned ductwork. Bay air stays humid year-round, and when your air conditioner moves cool air through warm, damp duct walls, moisture forms. That moisture feeds dust and biological growth inside the run. Cleaning removes the grime, but if you don’t address humidity or insulation, the smell will return. We’ll tell you what we found and what actually fixes it.
What insurers want is evidence: camera footage, moisture readings, and a clear distinction between cleaning and replacement. We bring a HEPA-filtered inspection setup and document everything. Our replace-versus-clean reports have been accepted in Alviso claims because they show the specific runs that were damaged and why. We can’t guarantee a carrier’s decision, but we give you a defensible paper trail. That’s the whole point of the documentation we do.
If the rust is surface staining, we clean it and treat the surface. If the galvanized walls have thinned to where a screwdriver pokes through, you’re past cleaning and into replacement. We see both conditions within the same Alviso home: an original trunk that’s still sound, and a branch run that’s rusted through. The only way to know is to inspect with a camera and check wall thickness. We never quote a replacement on rust without showing you the spot.
We work under negative pressure. The air handler access is sealed to a HEPA-filtered extraction unit, and every register stays covered except the one we’re actively working. Any debris we dislodge is pulled toward the collection point, not pushed out into the living space. It’s standard containment protocol, but in Alviso’s older homes with loose register boots and gaps, we use extra sheeting and sealing to keep mold spore and salt dust out of the rooms.
Duct Cleaning Milpitas serves Alviso with professional-grade Rotobrush and Nikro equipment, camera documentation, and flat pricing agreed to before the job starts through our Alviso Carrier service. If your ducts have been through a flood, a salt-fog decade, or just a long run without service, call (877) 358-5491 and tell us what you’re seeing. We’ll give you an honest answer, even if it’s not what you wanted to hear.
Written by Nate Espinoza, Owner at Duct Cleaning Milpitas, serving Alviso and the South Bay.