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 Company in East Foothills, CA
East Foothills homeowners deal with a duct problem the flatland parts of Santa Clara County rarely see: wildfire smoke and fine ash infiltration that turns filters black within weeks and settles deep in overhead duct runs. We’re Hollis Air Duct Cleaning, and we clean, seal, and restore duct systems across the Diablo Range foothills with equipment built for smoke-ash remediation, not just routine dust removal. Our crews are dispatched from the San Francisco Bay Area office and serve East Foothills directly. Call (361) 326-5060 for a free estimate.
Why East Foothills Homes Are Different
The housing stock here is mostly 1950s to 1970s ranch construction along foothill roads like Aborn Road and White Road, many on slabs or raised foundations with original galvanized steel or early flex ductwork. Those long, low-ceilinged runs and DIY add-ons create awkward overhead spans where ash and PM2.5 collect in ways modern tight-duct homes simply don’t experience.
The climate creates two distinct loading seasons. Summer and fall bring wildfire smoke intrusions from the Diablo Range and Santa Clara Valley, while winter temperature inversions trap wood-smoke and valley pollution against the hills. After major fire events like the SCU Lightning Complex, we’ve found East Foothills returns coated with fine ash that standard blow-and-go cleanings leave behind. Milpitas and Santa Clara don’t see this pattern. That means every job here requires negative-air extraction and rotary brush agitation that can dislodge adhered particulate, followed by visual documentation homeowners can verify.
Our Main East Foothills Services
East Foothills homeowners call us most often for these three jobs, each handled with The Garrison Standard: written price before work starts, background-checked uniformed technicians, and a 365-Day Done Right Promise on every visit.
Air Duct Cleaning in East Foothills
We use Rotobrush rotary brush systems and Nikro negative-air machines to dislodge and extract smoke ash, construction debris, and settled particulate from the older duct runs common in foothill ranch homes. The rotary brush scrubs the duct walls while negative suction pulls loosened material out of your system, not deeper into it. After red-flag fire events, we document before-and-after photos of blackened filters and returns so you see what came out. Air Duct Cleaning in East Foothills is priced by the system, not by the vent, with a written quote before we start.

Dryer Vent Cleaning in East Foothills
Dryer vents in foothill homes often run longer distances through slab or raised-foundation configurations, with more elbows and horizontal spans where lint accumulates. We clean the full run from appliance to termination with rotary tools and airflow verification, not just a shop vac at the exterior. Blocked dryer vents are a leading cause of house fires, and the dry Santa Clara County summers make this a maintenance item worth scheduling on a clear calendar. Dryer Vent Cleaning in East Foothills includes written airflow readings before and after.

Duct Sealing in East Foothills
Original galvanized and early flex ductwork in East Foothills ranch homes leaks at seams, junctions, and where DIY add-ons connect to the main trunk. We seal accessible ductwork with mastic and mechanical fasteners, then test for leakage reduction. Sealing matters especially here because smoke and ash enter through gaps during pressure events, and heated or cooled air escapes into unconditioned crawl spaces and attics. Duct Sealing in East Foothills is priced per system with a written guarantee of measurable improvement.

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 East Foothills
We stock and service filtration and ventilation components from Honeywell, Aprilaire, and Abatement Technologies, with replacement parts available for most East Foothills service calls. If we don’t have it on the van, we source it within 24 to 48 hours. See our brands for the full equipment roster.
Pricing for Air Duct Cleaning Company in East Foothills, CA
| Service | Typical range in East Foothills |
|---|---|
| Whole-home air duct cleaning (single system) | $450 – $750 |
| Whole-home air duct cleaning (two systems) | $750 – $1,100 |
| Dryer vent cleaning (standard run) | $150 – $250 |
| Dryer vent cleaning (extended or rooftop termination) | $250 – $400 |
| Duct sealing (single system, accessible ductwork) | $800 – $1,500 |
| Duct sealing (two systems or limited access) | $1,200 – $2,200 |
| HVAC filter upgrade (Honeywell / Aprilaire media) | $85 – $180 |
| Post-fire smoke-ash remediation cleaning | $600 – $950 |
Prices in East Foothills run toward the higher end of these ranges when ductwork is original galvanized with multiple add-on branches, when access requires crawl-space entry under raised foundations, or when post-fire remediation requires multiple pass-throughs with HEPA filtration. We give one flat price per system, agreed in writing before any work starts. That price does not move once our technician is in your home.
Neighborhoods We Serve in East Foothills
We schedule East Foothills appointments with arrival windows that keep crews moving efficiently across the foothill road network. Most homeowners see us inside a 2-hour window, with a call 30 minutes before arrival.
- Aborn Road corridor
- White Road foothill ranches
- Quimby Road area
- Norwood Avenue vicinity
- East Foothills estates near Joseph D. Grant County Park boundary
Service Area – Cities Near East Foothills
Our San Francisco Bay Area office dispatches crews throughout Santa Clara County and beyond. We also serve San Jose, CA, San Francisco, CA, Los Angeles, CA, and San Diego, CA through the Hollis network of independently owned locations operating under The Garrison Standard.
Serving East Foothills, CA - Our Local Coverage Area
We’re based in the East Foothills 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 East Foothills
We prioritize post-fire smoke-ash cleanings within 48 to 72 hours of safe air quality return, scheduling by call order. Call (361) 326-5060 to get on the list; estimates are free and we can often quote by phone from photos of your filters and returns.
Most foothill neighborhoods are unincorporated county parcels without HOA oversight, but gated communities along the eastern edge may require vendor registration. We carry general liability and workers compensation documentation and submit it to any HOA or property manager who requests it.
Many East Foothills ranch homes have furnace and ductwork in crawl spaces or low attics. Our technicians are trained for tight-space entry and carry protective gear; we inspect access points during the estimate and note any limitations in writing before work begins.
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 East Foothills Customers Say
"Sealed some leaking duct joints in the crawl space with mastic. Rooms that were always cold now get air."
- Ronald W."Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q."No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L.




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