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.
Fast, Reliable Air Duct Cleaning Across Los Altos Hills
Air duct cleaning in Los Altos Hills typically runs $450 – $850 for a whole-home system and is completed in a single visit by our Air Duct Cleaning crew. Most Los Altos Hills homes need this service every 3 – 5 years, though custom estates with multiple HVAC zones or properties near open space may need it sooner. Call (361) 326-5060 for a free written estimate.
We know Los Altos Hills. Our San Francisco Bay Area office dispatches crews who’ve worked on homes along Page Mill Road, in the hills above Moody Road, and throughout the winding streets off Altamont Road. These aren’t tract houses with identical duct layouts. You’re looking at custom-built single-family homes on acre-plus lots, many with sprawling floor plans, multiple HVAC zones, and ductwork concealed above vaulted ceilings or below raised foundations. The housing stock ranges from mid-century ranchers to new multi-million-dollar estates, so no two duct systems are alike. That complexity is exactly why local experience matters. We’ve navigated steep driveways with limited turnaround space, accessed ducts through wine cellars and home theaters, and worked around the town’s strict Hillside Residential zoning that produces extraordinarily long, complex duct runs through unheated crawlspaces and attics unique to each estate.
The Mediterranean climate here brings hot, dry summers and mild, wet winters, but Los Altos Hills sits at the base of the Santa Cruz Mountains in microclimates that see more fog and cooler nighttime temperatures than nearby Palo Alto. That temperature swing can cause condensation in ducts during winter months, while dry summers pull in dust, pollen, and wildfire particulate from the surrounding hills. Your ducts are working harder than you think.
Why Hollis Air Duct Cleaning Is Los Altos Hills’s Preferred Air Duct Cleaning Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our reputation in Los Altos Hills is built on showing up inside the quoted window, pricing in writing before any work starts, and leaving the site clean. That’s The Garrison Standard, and it’s how we operate on every job.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. And when you call (361) 326-5060, a live person answers the phone 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday for a scheduling question.
The 365-Day Done Right Promise covers every job we do in Los Altos Hills. If the work fails within a year, we come back and make it right at no charge, including a free second visit. That’s not a vague “satisfaction guaranteed.” It’s written on every invoice, and it’s how we’ve built trust in a trade where bait-and-switch pricing is common.
Most Los Altos Hills properties rely on private propane tanks or well water, so there are no municipal gas utility easements to navigate. But that independence also means ductwork is often routed through unconventional spaces our crews have learned to handle. We bring Rotobrush rotary brush systems and Nikro negative-air machines, the same tools commercial crews use, and we explain what each does in plain terms before we start.
Commercial Air Duct Cleaning in Los Altos Hills
Commercial Air Duct Cleaning in Los Altos Hills covers office buildings, medical suites, retail spaces, and any non-residential HVAC system where code compliance and indoor air quality standards apply. Most commercial jobs in this market run $800 – $2,500 depending on square footage, system accessibility, and whether the building requires post-cleaning verification documentation. Properties along Foothill Expressway or in the limited commercial zones near the town’s edges often have older rooftop units or split systems that haven’t been serviced in years.
Code Compliance and Documentation
Commercial clients in Los Altos Hills need more than clean ducts. They need documentation for insurance, lease agreements, or regulatory inspection. We provide before-and-after photos, written scope of work, and any verification records your building requires. The price is fixed before we start, so there’s no invoice shock when the job wraps.
Minimizing Business Disruption
We schedule commercial work around your hours, not ours. Early mornings, weekends, or phased cleaning across multiple zones, we coordinate with your facilities contact to keep operations running. Our crew arrives uniformed, works efficiently, and leaves no debris or equipment behind.
Air Duct Cleaning Services in Los Altos Hills
Air Duct Cleaning Services in Los Altos Hills encompass everything from single-zone residential systems to multi-zone estates with ductwork running through unconditioned attics, crawlspaces, and custom architectural features. A typical residential job in this market costs $450 – $850 for a full system cleaning, with larger homes or those with complex layouts running toward the higher end. We also offer Duct Sealing in Los Altos Hills for systems where leaks are found during inspection.
Residential System Cleaning
Most Los Altos Hills homes we service fall between 3,000 and 8,000 square feet with two to five HVAC zones. Our rotary brush system loosens debris from duct walls while negative-air machines pull it out of the system entirely, not just redistribute it. We clean supply ducts, return ducts, and the main trunk lines connecting them.

Video Inspection and Targeted Access
Before we recommend any work, we run a video camera through the system to show you what’s inside. In Los Altos Hills, we’ve found everything from construction debris left in ducts since the 1970s to rodent activity in crawlspace runs. You see the footage. We explain what it means. Then you decide.

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.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Los Altos Hills
Our equipment roster includes Rotobrush rotary brush systems, Nikro negative-air machines, and filtration products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. We don’t use hardware-store vacuums with a brush attachment. These are professional-grade tools designed for the kind of complex duct systems common in Los Altos Hills custom homes. We stock common parts and filtration media locally, so if your system needs a component replacement during cleaning, we’re not ordering it and making you wait. For homeowners who also need Dryer Vent Cleaning in Los Altos Hills, we can often bundle the service and complete both in one visit.
Common Air Duct Cleaning Problems We See in Los Altos Hills Homes
- Condensation and mold risk in mountain microclimates. The cooler nighttime temperatures and fog that roll through Los Altos Hills can create moisture buildup in unheated attic ducts. We regularly find light mold staining in returns on north-facing slopes above Moody Road, especially in homes built before modern insulation standards.
- Construction debris in legacy mid-century systems. Ranchers from the 1950s and 1960s around the Page Mill corridor often still have original ductwork with decades of accumulated dust, old insulation fragments, and even leftover building materials. The rotary brush system breaks this loose so the negative-air machine can extract it completely.
- Excessive dust infiltration during dry months. Los Altos Hills sits near open space and agricultural land. When the Santa Ana patterns kick up in late summer, fine dust and pollen push through compromised seals and aging filter slots. We check and document seal condition during every cleaning.
- Complex access in custom estates. Ducts routed through wine cellars, below raised foundations with limited crawlspace clearance, or above vaulted ceilings with no attic access require specialized equipment and patience. Our crews carry extension tools and compact cameras specifically for these Los Altos Hills configurations.
Pricing for Air Duct Cleaning in Los Altos Hills, CA
Here’s what whole-system air duct cleaning costs in the Los Altos Hills market:
| Service | Typical Range |
|---|---|
| Residential full system cleaning (single zone, up to 2,500 sq ft) | $450 – $650 |
| Residential full system cleaning (multi-zone, 2,500 – 5,000 sq ft) | $650 – $850 |
| Large estate or complex layout (5,000+ sq ft, 4+ zones) | $850 – $1,400 |
| Commercial duct cleaning (per system) | $800 – $2,500 |
| Video inspection only | $150 – $250 |
| Dryer vent cleaning (bundled with duct cleaning) | $120 – $180 |
What moves the price? Number of HVAC zones, accessibility of duct runs, last cleaning date, and whether we find damage or leaks that need sealing. We do not quote per-vent pricing. We do not bait you with a teaser coupon and rewrite the invoice at your door. One flat price per system, agreed in writing before any work starts. That’s The Garrison Standard, and it’s how we’ve operated since 2004. Call (361) 326-5060 for your free estimate.
We Also Serve Cities Near Los Altos Hills
Our Air Duct Cleaning in Los Altos Hills crew is dispatched from our San Francisco Bay Area office and also serves Los Angeles, San Diego, San Jose, and San Francisco. Each location operates independently under The Garrison Standard, with the same written pricing, background-checked technicians, and 365-Day Done Right Promise.
Serving Los Altos Hills, CA - Our Local Coverage Area
We’re based in the Los Altos Hills 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 Hills
We typically schedule Los Altos Hills appointments within 3 – 5 business days of your call, with some flexibility for urgent situations like post-renovation cleaning or real estate transactions. Call (361) 326-5060 to check current availability, estimates are always free.
Yes, we service the full town, from the lower-elevation properties near the Palo Alto border to the hillside estates above Altamont Road and along the winding lanes off Page Mill. Our trucks are equipped for steep driveways and limited turnaround space.
We prioritize urgent situations like post-fire restoration, water damage remediation, or real estate deadlines, though we do not advertise 24-hour emergency dispatch for routine cleaning. Call (361) 326-5060 to explain your timeline and we’ll do what we can.
Los Altos Hills homes are larger on average, with more complex custom duct systems, longer runs through unconditioned spaces, and harder access points. A 2,500-square-foot San Jose tract home with a single attic duct run takes less time than a 5,000-square-foot Los Altos Hills estate with five zones and crawlspace routing. The price reflects the actual scope of work.
Every job is covered by our 365-Day Done Right Promise. If the cleaning fails to resolve the issue we addressed, or if a component we serviced fails within one year, we return and make it right at no charge, including a free second visit. It’s written on your invoice, not implied.
Ready to see what’s inside your ducts? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free written estimate. We’ll show you the video, explain your options, and give you one flat price before any work starts. That’s The Garrison Standard, and it’s how we do business in Los Altos Hills.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Los Altos Hills and the Bay Area.




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