Bellows Air Duct & Vent Co. air duct cleaning team

Air Duct Cleaning Services in Los Altos - Flat Price Per System, No Per-Vent Upsells

One flat price per system, agreed before we start, with before-and-after photos of your actual ducts. No per-vent pricing, no coupon that turns into a bigger bill once the van is on the drive.

✓ Licensed & Insured ✓ 42+ yrs ✓ Written quotes ✓ Permits handled
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🛡 Licensed & Insured ★ 42+ Years 📝 Written Fixed-Price Quotes 💲 No Change Orders · Free Estimates

Air Duct Cleaning Services in Los Altos, CA

Air duct cleaning in Los Altos typically runs $350-$650 for a standard single-system home, with most appointments completed in one visit. Bellows Air Duct & Vent Co. has worked in Los Altos since 2012, and we answer calls live at (844) 685-6342, day or night. If you’re noticing more dust settling on surfaces, uneven heating through the house, or a persistent burnt smell when the furnace first kicks on, the problem is likely in the ductwork itself.

Call (844) 685-6342

Need help today?Fast, friendly service and a no-obligation free estimate.

Call (844) 685-6342

What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Why Los Altos Homeowners Choose Bellows Air Duct & Vent Co.

We’ve been driving to Los Altos long enough to know the difference between the flat lots near Grant Road and the hillside homes off Magdalena Avenue. That familiarity matters when you’re scheduling a technician who needs to bring the right equipment for a crawl-space duct run versus a full basement system.

Our reviews from Los Altos homeowners consistently mention two things: we show up when we say we will, and the price quoted on the phone matches the invoice. No one likes waiting around for a four-hour window, and no one appreciates a bait coupon that doubles once the truck is in the driveway. We don’t work that way. One honest price, shown before we start.

Every technician we send to Los Altos is background-checked, uniformed, and equipped with a Rotobrush or Nikro system suited to the job. We camera-inspect before and after every clean, so you see what was in there and what came out. Our 90-Day Done Right Promise applies to every Los Altos job: if something isn’t right, we return at no charge with no paperwork required.

We regularly work in Old Los Altos and the neighborhoods near Foothill Expressway, and we understand the specific challenges those post-war ranch systems present.

Air Duct Cleaning Services We Offer in Los Altos

Air Duct Cleaning

We clean supply and return ductwork, registers, and grilles using professional-grade brushing and negative-pressure extraction. Our process removes accumulated dust, debris, and smoke particulates that standard filters cannot capture. Learn more about our Air Duct Cleaning in Los Altos.

Air Duct Cleaning

Dryer Vent Cleaning

Clogged dryer vents are a leading cause of house fires, and Los Altos’s mature landscaping means lint traps often fill with fine debris from nearby trees. We clear the full run from appliance to exterior termination. Learn more about our Dryer Vent Cleaning in Los Altos.

Dryer Vent Cleaning

HVAC Cleaning

We clean blower assemblies, evaporator coils, and plenums where mold and dust collect and recirculate. This service is especially valuable in Los Altos homes where high-MERV filters have been added to systems never properly cleaned. Learn more about our HVAC Cleaning in Los Altos.

HVAC Cleaning

Duct Repair & Sealing

Original sheet-metal ducts in Los Altos’s 1950s-1970s housing stock often separate at joints or lose insulation. We seal leaks with mastic and replace damaged sections, improving efficiency and preventing attic or crawl-space contaminants from entering the airflow. Learn more about our Duct Repair & Sealing in Los Altos.

Duct Repair & Sealing

Air Quality & Sanitizing

For homeowners concerned with wildfire smoke residue or allergen loads, we apply Air Quality & Sanitizing in Los Altos with EPA-registered sanitizers after mechanical cleaning. This is not a substitute for proper duct cleaning, but it addresses microbial growth and odor sources in the system.

Air Quality & Sanitizing

Neighborhoods We Serve in Los Altos

We work across all three Los Altos ZIP codes - 94022, 94023, and 94024 - with same-day or next-day availability for most service calls. These are the neighborhoods we know best:

  • Old Los Altos
  • Grant Road corridor
  • Foothill Expressway area
  • Magdalena Avenue hillsides
  • North Los Altos near El Camino Real

Most Los Altos appointments are scheduled within 24 hours of your call.

Why Los Altos’s Climate & Housing Affect Air Duct Cleaning

Los Altos sits directly at the base of the Santa Cruz Mountains foothills, making it a first-capture zone for wildfire smoke that funnels down through the hills each fall. Smoke particulates infiltrate HVAC systems and embed in ductwork in ways that standard filter changes cannot address. Compounding this, the city’s core housing stock of 1950s-1970s ranch homes still carries original sheet-metal or early flex-duct systems that have accumulated 50-plus years of allergens, debris, and smoke residue from multiple wildfire seasons, yet are routinely overlooked when affluent owners renovate kitchens and baths.

The Santa Clara Valley’s persistent temperature inversions trap ground-level particulates - wildfire smoke, grass pollen from the surrounding hills, and orchard-era agricultural dust - keeping them cycling through residential HVAC systems far longer than in coastal cities with stronger onshore flow. Los Altos’s position at the valley’s western edge, immediately downslope from the fire-prone Santa Cruz Mountains, means duct contamination from smoke events is measurably heavier here than in flatland cities like Sunnyvale, CA or Santa Clara a few miles east.

We’ve also found that technicians working Old Los Altos neighborhoods regularly encounter homeowners who have added whole-house air purifiers or high-MERV filtration upgrades without ever cleaning the underlying duct system first. The new equipment simply recirculates decades of embedded debris and smoke particulates already baked into aged sheet-metal runs. Cleaning the ducts is the prerequisite; everything else is secondary.

Air Duct Cleaning in Los Altos, Built on the K.E.Y.S. Code

The Bay Area’s mix of salt air, redwood pollen, and decades-old ranchers with original ductwork means your system works harder than it should. We inspect with a camera before we touch a thing, clean to the collar, and show you after. Dryer vents get cleared to code, because lint fires are real and preventable. One honest price, no surprises on the bill. we coordinate through our San Francisco Bay Area service area

We stand behind it with the Keystone Standard: 90 days, in writing, no arguing. Named for the oldest air-moving tool there is. Clean air, the old craft way.

Air Duct Cleaning in Los Altos

Bay Area summers pull cool air through ducts that stay damp half the year, and winter heaters stir up what settled in them. We inspect with a camera before we touch anything, clean to the collar, and show you after. Dryer vents get cleared to code, because lint fires are preventable and we treat them that way. One honest price, no surprises on the bill. we coordinate through our San Francisco Bay Area service area

We hire local, train apprentices into journeymen, and answer the phone with a person. The Keystone Standard applies to every job: 90 days, in writing, no arguing. We’ll be there when we say.

Air Duct Cleaning in Los Altos

Bay Area summers pull cool air through ducts that stay damp half the year, and winter heaters stir up what settled in them. We inspect with a camera before we touch anything, clean to the collar, and show you after. Dryer vents get cleared to code, because lint fires are preventable and we treat them that way. One honest price, no surprises on the bill. we coordinate through our San Francisco Bay Area service area

We hire local, train apprentices into journeymen, and answer the phone with a person. The Keystone Standard applies to every job: 90 days, in writing, no arguing. We’ll be there when we say.

Air Duct Cleaning in Los Altos

Bay Area summers pull cool air through ducts that stay damp half the year, and winter heaters stir up what settled in them. We inspect with a camera before we touch anything, clean to the collar, and show you after. Dryer vents get cleared to code, because lint fires are preventable and we treat them that way. One honest price, no surprises on the bill. we coordinate through our San Francisco Bay Area service area

We hire local, train apprentices into journeymen, and answer the phone with a person. The Keystone Standard applies to every job: 90 days, in writing, no arguing. We’ll be there when we say.

Pricing for Air Duct Cleaning in Los Altos

We disclose pricing before we lift a single tool. No bait coupons, no surprises at the door.

Service Typical Range
Standard air duct cleaning (single system, up to 10 vents) $350-$550
Larger homes or dual-zone systems $550-$850
Dryer vent cleaning $125-$225
HVAC blower & coil cleaning $200-$350
Duct repair & sealing (per job) $300-$800
Air quality sanitizing $150-$300

Standing offers for Los Altos homeowners: $50 off any repair over $250, free second opinion on any written estimate, $89 seasonal tune-up, and a permanent 5% senior and veteran discount. Call (844) 685-6342 for an exact quote - estimates are free.

Service Area - Cities Near Los Altos

We also serve homeowners in Mountain View, Sunnyvale, Cupertino, and Palo Alto with the same upfront pricing and 90-Day Done Right Promise. If you’re near the Los Altos border in any of these cities, we can typically schedule you on the same route.

Serving Los Altos, CA - Our Local Coverage Area

We’re based in the Los Altos area and know this community well, and we also serve our Mountain View service area. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.

FAQs About Air Duct Cleaning in Los Altos

Ready to get started? Free estimates · Price agreed before we start response in Los Altos
Call (844) 685-6342

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local air duct cleaning pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Los Altos Customers Say

★★★★★ 4.8 from 13+ reviews

"They ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."

- Katie Sullivan

"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."

- Grace Chen

"Used them at the house and then at my mother's place. Same crew standard both times even though it was a different team."

- Luis Reyes

Current Offers

Bring these savings to your next appointment.

Flat Price Per System, Quoted Before We Start

No per-vent add-ons. Before-and-after photos on every job.

Expires Dec 31, 2026
$50

$50 Off Any Repair Over $250

Expires Dec 31, 2026
$89

$89 Seasonal Tune-Up (any trade)

Expires Dec 31, 2026
5%

Senior & Veteran 5% - Always

Expires Dec 31, 2026

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