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.
Air Duct Cleaning in Los Altos, CA
Dryer vent cleaning in Los Altos runs $120-$280 for a standard single-story ranch home, with most jobs completed in under two hours. The city’s continuously remodeled post-war homes push decades of construction dust into vent runs that were never resized for the additions, and we see lint accumulation rates that surprise homeowners who assumed their 15-year-old vent was fine. Call (806) 606-6902 for a written price before anyone touches a panel.
Why Los Altos Homes Are Different
Los Altos is a city where the 1950s ranch rarely gets demolished. Instead, successive owners add square footage, update kitchens, and expand floor plans under permit, which means the original duct system keeps absorbing drywall dust, sawdust, and debris from each remodel. A house built in 1962 with 1,400 square feet of floor space is now commonly 2,800 to 3,200 square feet, served by the same trunk line and an assortment of flex duct branches added in the 1990s and rigid runs from the 2010s. Every transition between those materials is a debris trap.
The South Bay basin geography does the rest. During the 2018 Camp Fire and the severe 2020 fire season, Los Altos saw AQI readings above 200 for days at a time. Residents ran their HVAC systems continuously, and fine smoke particulate coated the interior of duct runs throughout the city. The region’s dry summers then keep that particulate and ordinary dust suspended and re-circulating rather than settling, which is why the ductwork in a Los Altos ranch often holds stratified layers of contamination from several construction eras.
Our Main Los Altos Services
Most Los Altos homeowners call us first for two jobs: air duct cleaning and HVAC cleaning. Each has its own dedicated Los Altos page with full pricing, signs, and local detail.
Air Duct Cleaning in Los Altos
Air Duct Cleaning in Los Altos deals with the full run of supply and return ductwork that moves conditioned air through the house. In Los Altos, the debris we extract is rarely uniform: a camera inspection will often show a 1960s galvanized trunk line with a fine layer of smoke particulate, a 1990s flex branch packed with drywall dust from a family-room addition, and a newer rigid run carrying pet hair and ordinary household dust. We document every run before and after with photos and deliver the record with the written scope of work.

HVAC Cleaning in Los Altos
HVAC Cleaning in Los Altos covers the mechanical side: the evaporator coil, blower motor, condensate pan, and the interior of the air handler. Those components sit in the airstream before the duct run starts, and in a Los Altos home that has lived through multiple remodels, the coil can be caked with the same construction dust that lines the ducts. A dirty coil forces the system to work harder and reduces airflow through runs that were already undersized for the expanded floor plan.

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.
Before
AfterDryer Vent Cleaning in Los Altos

Dryer vent cleaning in Los Altos typically costs $120-$280 and addresses a fire hazard that builds faster in this city than in most of the Bay Area because of the renovation history: lint, drywall dust, and fine construction debris combine inside the vent run into a dense, flammable accumulation. Every Los Altos job we perform includes a full inspection with camera documentation, and the Dryer Vent Cleaning work is governed by the 365-Day Done Right Promise in writing, not as a marketing line. In this city’s continuously remodeled ranches, a vent that has never been cleaned since a 2005 kitchen addition or a 2015 bathroom expansion is often holding more than lint.
Dryer Vent Inspection
Signs you need it
Your dryer takes longer than 45 minutes to dry a standard load, or the exterior vent flap barely moves while the dryer runs.
What it costs in Los Altos
A standalone dryer vent inspection in Los Altos runs $90-$150, and the fee is credited toward cleaning if you proceed the same day.
How we do it
We run a camera through the full vent run from the dryer connection to the exterior termination, recording the buildup, any disconnections, and the condition of the vent material before we recommend any work.
Lint Removal
Signs you need it
Visible lint accumulates around the dryer, the laundry room feels humid during cycles, or you notice a burning smell when the dryer has been running.
What it costs in Los Altos
Lint removal as part of a full vent cleaning in Los Altos runs $120-$280 depending on run length, access, and how many elbows the vent makes.
How we do it
We use a powered rotary brush matched to the vent diameter and connected to a negative-pressure extraction system so the lint is pulled out, not pushed further into the run, then photograph the result.
Vent Rerouting
Signs you need it
Your dryer vent currently terminates under a crawl space, into an attic, or through a run longer than 25 feet with more than two elbows.
What it costs in Los Altos
Vent rerouting in Los Altos runs $350-$800 depending on the path, the wall construction, and whether the job requires cutting a new exterior termination point.
How we do it
We measure the current run, calculate the equivalent length under code, and install a new rigid metal duct path with the shortest practical route and a proper exterior hood.
Bird Guard Installation
Signs you need it
Birds have nested at the exterior vent hood, the flap is missing or stuck open, or you find grass and straw inside the vent termination.
What it costs in Los Altos
Bird guard installation in Los Altos runs $75-$150 as a standalone job and is often added to a cleaning for a reduced rate.
How we do it
We install a corrosion-resistant metal guard over the exterior hood that keeps birds and rodents out while allowing full airflow, then verify the flap still opens under dryer pressure.
What Dryer Vent Cleaning Costs in Los Altos
| Item | Typical range in Los Altos |
|---|---|
| Dryer vent inspection | $90-$150 |
| Full dryer vent cleaning | $120-$280 |
| Vent rerouting | $350-$800 |
How often should a dryer vent be cleaned in Los Altos?
Every 12 to 18 months for a typical Los Altos household, and every 12 months if your home has undergone renovation work or your dryer sees more than five loads per week. The construction-dust load in this city’s remodels shortens the interval. Call (806) 606-6902 for a written price.
Why is my dryer taking two cycles to dry clothes in Los Altos?
Most commonly, the vent run is partially clogged with lint and construction dust from a prior remodel, which restricts airflow and forces the dryer to work longer. In Los Altos ranches with long vent paths, the restriction tends to be worse. Call (806) 606-6902 for an inspection with camera proof.
Duct Repair & Sealing in Los Altos

Duct repair and sealing in Los Altos deals with the physical failure points inside the patchwork duct systems this city’s remodels create: separated joints, torn flex duct, and unsealed transitions between original 1960s sheet metal and newer additions. Because the ductwork serving an expanded Los Altos ranch was never resized for the square footage it now serves, leaks and disconnections force the system to pull air from crawl spaces and wall cavities. The Duct Repair & Sealing work we perform is quoted as a written price before any panel comes off, and every repair junction is photographed for the job record.
Duct Sealing
Signs you need it
Rooms at the far end of the house stay warmer in summer and colder in winter, or your utility bills run high relative to similar Los Altos homes.
What it costs in Los Altos
Duct sealing in Los Altos runs $400-$1,200 depending on access, the number of joints and transitions, and whether the work is in a crawl space or attic.
How we do it
We locate every accessible joint and seam, clean the surface, and apply a brush-on mastic sealant or tape rated for ductwork, then verify the seal with a pressure test.
Flex Duct Repair
Signs you need it
You see a collapsed or kinked flex duct in the attic or crawl space, or one room gets almost no airflow while others do.
What it costs in Los Altos
Flex duct repair in Los Altos runs $150-$450 per run depending on the length, the diameter, and how much of the duct must be replaced.
How we do it
We replace the damaged flex duct section with new insulated flex, reconnect it at both ends with proper fasteners and sealant, and photograph the finished connection.
What Duct Repair & Sealing Costs in Los Altos
| Item | Typical range in Los Altos |
|---|---|
| Duct sealing (mastic, per system) | $400-$1,200 |
| Flex duct repair (per run) | $150-$450 |
| Metal duct repair (per section) | $200-$600 |
Why does one room in my Los Altos house never reach the thermostat temperature?
The duct run serving that room is likely disconnected, collapsed, or undersized for the square footage added during a remodel. Los Altos homes with original 1960s trunk lines and later flex additions show this pattern often. Call (806) 606-6902 for a written repair quote.
Can duct sealing reduce my heating costs in Los Altos?
Yes, when the leaks are significant. Sealed ducts stop conditioned air from escaping into attics and crawl spaces, which is common in Los Altos ranches with decades of renovation joints. Call (806) 606-6902 for a written estimate and a pressure test.
Air Quality & Sanitizing in Los Altos

Air quality and sanitizing in Los Altos addresses what duct cleaning alone cannot: the biological and particulate load that wildfire smoke, remodeling dust, and low-humidity summers leave suspended in a home’s air stream. The same stratified debris that accumulates inside this city’s multi-era ductwork also coats the coils, plenums, and filter housings, and a house sealed for energy efficiency holds that contamination indoors. We quote every Air Quality & Sanitizing job with a written price before work starts, and we document the before and after condition of every treated surface.
Mold Treatment
Signs you need it
You see visible mold on duct surfaces, around registers, or inside the air handler, or a musty smell strengthens when the blower runs.
What it costs in Los Altos
Mold treatment in Los Altos runs $500-$1,200 depending on the extent of growth, the number of duct runs affected, and whether the plenum requires treatment.
How we do it
We apply an EPA-registered antimicrobial to accessible duct surfaces, plenum, and coil after mechanical cleaning, then photograph every treated area for the record.
Odor Removal
Signs you need it
A persistent smell returns days after cleaning, or the house carries a stale odor that intensifies when the HVAC cycles on.
What it costs in Los Altos
Odor removal in Los Altos runs $250-$600 depending on the source, the size of the system, and whether duct cleaning must accompany the treatment.
How we do it
We locate the odor source with a camera inspection, clean the affected surfaces, and apply a neutralizer or deodorizer matched to the contaminant, then re-test airflow.
UV Light Installation
Signs you need it
You want ongoing control of mold, bacteria, and odor inside the HVAC system, or a household member has a respiratory condition that demands cleaner airflow.
What it costs in Los Altos
UV light installation in Los Altos runs $600-$1,400 depending on the unit, the mounting location, and the electrical work required at the air handler.
How we do it
We mount a UV-C lamp inside the supply plenum or above the coil, wire it to the blower circuit so it runs with the fan, and verify the installation with a meter reading.
What Air Quality & Sanitizing Costs in Los Altos
| Item | Typical range in Los Altos |
|---|---|
| Mold treatment | $500-$1,200 |
| Odor removal | $250-$600 |
| UV light installation | $600-$1,400 |
Does wildfire smoke leave anything inside my ducts in Los Altos?
Yes, fine particulate from smoke events like the 2020 fire season coats duct interiors and re-circulates during dry summers. Los Altos homes that ran HVAC continuously during high-AQI days often show a smoke film in the runs. Call (806) 606-6902 for a written cleaning and sanitizing quote.
Will duct cleaning remove the musty smell in my Los Altos house?
Duct cleaning removes the debris the odor clings to, but persistent biological odors often require antimicrobial or odor-neutralizing treatment afterward. Los Altos ranches with crawl spaces are more prone. Call (806) 606-6902 for a written price.
Brands We Service in Los Altos

Our Los Altos crews work with Guardsman, Rotobrush, Nikro, and Honeywell equipment and components in the field. We carry common Guardsman access doors and Honeywell media filters on the truck, which means most replacements happen the same day we diagnose the problem. See our brands for the full equipment roster.
Pricing for Air Duct Cleaning in Los Altos, CA
| Service | Typical range in Los Altos |
|---|---|
| Dryer vent inspection | $90-$150 |
| Full dryer vent cleaning | $120-$280 |
| Vent rerouting | $350-$800 |
| Bird guard installation | $75-$150 |
| Duct sealing (mastic, per system) | $400-$1,200 |
| Flex duct repair (per run) | $150-$450 |
| Metal duct repair (per section) | $200-$600 |
| Mold treatment | $500-$1,200 |
| Odor removal | $250-$600 |
| UV light installation | $600-$1,400 |
The single biggest cost driver in Los Altos is access: crawl space and attic work on post-war ranches with multiple renovation-era duct transitions takes longer than work in a newer house with a clean, open attic. The second is run length, since expanded floor plans in Los Altos routinely push duct runs past what the original system was sized for. Whatever the scope, the price is written before work starts under Haven Standard Clause 1, and it does not change after the fact.
Neighborhoods We Serve in Los Altos

We cover the full Los Altos residential footprint, from the flat streets of North Los Altos to the hillside lots above Foothill Expressway. Our scheduling dispatch coordinates from the brand’s San Francisco Bay Area office, and Los Altos crews typically reach any neighborhood on the same route.
- North Los Altos
- South Los Altos
- The Highlands
- Los Altos Hills border streets
- The Country Club area
Service Area - Cities Near Los Altos
CleanRun Air Duct Cleaning serves Los Altos and the surrounding South Bay communities where the same post-war housing patterns and wildfire smoke exposure create similar duct conditions. We schedule work in Mountain View, CA, Palo Alto, CA, Menlo Park, CA, and Sunnyvale, CA, with the same written-price requirement on every job.
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 in Los Altos
No permit is required in Los Altos for duct cleaning, sealing, or standard repairs to existing ductwork. New duct installations or major alterations that add runs may require a building permit, and your contractor should tell you before work begins. Call (806) 606-6902 for a written scope of work.
Most Los Altos jobs are scheduled within five to ten business days depending on the season. We do not promise same-day service or artificial urgency; we schedule the job for when a written price can be prepared and the work can be done properly. Call (806) 606-6902 for availability.
Clear a path to the furnace or air handler, move anything fragile near the registers, and know where your outdoor AC unit and crawl space access are located. Our technicians wear shoe covers and protect flooring around every work area. Call (806) 606-6902 with questions.
Call (806) 606-6902 for a free written estimate on air duct cleaning, dryer vent cleaning, duct repair, or air quality work in Los Altos. Every price is put in writing before work starts, and every duct run is photographed before and after. If the work is not right, our 365-Day Done Right Promise means we make it right.
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
"The dryer vent was almost completely blocked with lint. They showed me the photograph and I understood immediately why the dryer had been running twice."
- Lucia M."They found a disconnected duct in the crawl space that had been dumping conditioned air under the house for years. Photographed it, quoted the repair, fixed it."
- Devon A."On time, professional, and explained what the readings meant without talking down to me."
- Warren E.




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