Whole-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.
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AfterAir Duct Cleaning Company in Los Altos, CA
Most air duct cleaning jobs in Los Altos run $450 – $850 for a whole-home system, with dryer vent cleaning typically $150 – $275 and full duct sealing ranging $1,200 – $2,800 depending on system size and accessibility. We’re Hollis Air Duct Cleaning, and we dispatch crews to Los Altos from our San Francisco Bay Area office. The homes here aren’t like newer tract developments; they’re mature, often remodeled properties where original 1950s-60s ductwork has been patched into additions, creating hidden problems a standard cleaning won’t touch. Call us at (361) 326-5060 for a free estimate.
Why Los Altos Homes Are Different
Los Altos sits in the South Bay with a mild, dry Mediterranean climate. HVAC runs moderately year-round, so ducts here rarely suffer the mold and condensation issues you’d see in humid regions. The real problem is what gets drawn in: oak and grass pollen seasonally, plus construction dust from the constant remodel cycle in neighborhoods like Old Los Altos and Loyola Corners.
The housing stock tells the story. Most homes were built 1950s-1970s, ranch-style or Eichler-influenced, on generous lots. Over decades, owners have added square footage, often permitting those additions properly, but leaving the original trunk line undersized for the new load. We regularly find flexible duct spliced into old rigid galvanized trunks, illegal DIY connections hidden above ceilings, and bedrooms at the end of the run getting almost no airflow. A duct cleaning appointment in Los Altos frequently becomes a diagnostic: we’re tracing why the system performs poorly, not just vacuuming debris.
High construction costs and a permit-conscious homeowner culture mean residents here want the problem fixed correctly, not patched cheaply. They also want to understand what they’re paying for before work starts.
Our Main Los Altos Services
Los Altos homeowners call us most often for these three services, each with its own dedicated page:
Air Duct Cleaning in Los Altos
We clean supply and return ductwork using a Rotobrush rotary brush system or Nikro negative-air machine, depending on your duct material and contamination level. In Los Altos, we often start by mapping the system, because what looks like dirty ducts is frequently a flow problem caused by improper additions. We pull debris from the full run, including registers and boots, and show you before-and-after photos of your own system. Air Duct Cleaning in Los Altos
Dryer Vent Cleaning in Los Altos
Dryer vent blockages are a fire hazard, especially in homes where the vent run passes through multiple walls or terminates on a second-story roofline. We clear the full line from dryer to termination, check airflow with a meter, and flag damaged or non-code materials. Many Los Altos homes have extended vent runs from interior laundry rooms that lint collects in heavily. Dryer Vent Cleaning in Los Altos
Duct Sealing in Los Altos
We seal accessible duct joints and seams with mastic and mesh, then pressure-test the system. In Los Altos, this service pays off dramatically: we routinely measure 25-40% leakage in homes where additions were tied into original trunks without proper sealing. Stopping that loss means rooms that never cooled properly finally get airflow, and your HVAC equipment stops working overtime. Duct Sealing in Los Altos
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.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Los Altos
We stock parts and filters from Honeywell, Aprilaire, Abatement Technologies, and Guardsman, and carry Rotobrush and Nikro cleaning equipment on every truck. Most filter replacements and minor hardware needs are handled same visit. our brands
Pricing for Air Duct Cleaning Company in Los Altos, CA
| Service | Typical range in Los Altos |
|---|---|
| Whole-home air duct cleaning (single system) | $450 – $850 |
| Whole-home air duct cleaning (dual system) | $750 – $1,400 |
| Dryer vent cleaning (ground-floor termination) | $150 – $225 |
| Dryer vent cleaning (roof or extended run) | $225 – $275 |
| Duct sealing (single system, accessible) | $1,200 – $2,200 |
| Duct sealing (dual system or limited access) | $2,000 – $2,800 |
| Register/boot cleaning add-on | $75 – $150 |
| HVAC filter replacement (standard) | $25 – $65 |
| System airflow diagnostic with report | $125 – $195 |
Prices in Los Altos trend toward the higher end when crawl spaces are tight, attics have blown-in insulation covering ductwork, or we need to access finished ceiling areas. We write the price down before any work starts, and it does not change at the door.
Neighborhoods We Serve in Los Altos
We work across the full city, from the older core to the hillside properties off Page Mill Road. Most Los Altos appointments are scheduled within a few days, with arrival windows kept to two hours.
- Old Los Altos
- Loyola Corners
- South Los Altos
- North Los Altos
- Country Club
Service Area – Cities Near Los Altos
Our crews cover the full Los Altos city limits and work regularly in surrounding communities. We also serve Mountain View, CA, Stanford, CA, Palo Alto, CA, and Portola Valley, CA. Scheduling is coordinated from our San Francisco Bay Area office.
Serving Los Altos, CA - Our Local Coverage Area
We’re based in the Los Altos 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 Company in Los Altos
Standard cleaning and accessible sealing do not require permits. If we find that a previous addition created a code violation in your duct layout, we’ll document it and explain whether a permit is needed for correction. Call (361) 326-5060 and we can review your specific situation.
We typically schedule Los Altos appointments within 2-4 business days. Our phones are answered by a live person 24/7, so you can book or ask questions anytime. Call (361) 326-5060 to check current availability.
Yes. We’re insured and bonded, our technicians are background-checked and uniformed, and we provide certificates of insurance on request. If your HOA in Los Altos requires specific documentation, let us know when you call and we’ll have it ready before arrival.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Los Altos Customers Say
"No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L."They checked each section with a camera and showed me the dust before and after. Thorough and honest."
- Nicole H."Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O.