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 Thousand Oaks, CA
Air duct cleaning in Thousand Oaks typically runs $350 – $650 for a whole-home system, with most jobs completed in a single visit. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and we dispatch crews to Thousand Oaks from our Los Angeles scheduling office. Thousand Oaks homes sit under some of the heaviest oak canopy in Ventura County, and that changes what we find inside the ducts: damp leaf litter, acorn debris, and wildfire ash from the Santa Ana corridor create a clog profile we don’t see in neighboring cities. Call (361) 326-5060 for a free written estimate.
Why Thousand Oaks Homes Are Different
Thousand Oaks built out fast between the 1960s and 1980s, and most of that stock is single-story ranch or split-level homes on the Conejo Valley floor and up the slopes toward Newbury Park and Lynn Ranch. Original ducts are sheet metal with short runs and ceiling registers. The late-1980s and 1990s brought longer flex-duct runs in Dos Vientos, and the 2000s added second-story systems in Wildwood. Each generation handles debris differently.
The city’s oak tree preservation ordinance protects mature coast live oaks and valley oaks, so roofs stay shaded and cool for much of the day. That shade plus the spring marine layer keeps duct interiors damp enough for microbial growth. Meanwhile, Santa Ana wind events push fine wildfire ash and dust through return grilles. After the Hill and Thomas fires, we took calls in Newbury Park where the primary complaint was smoke odor and ash residue in the ductwork, not ordinary dust.
Technicians regularly find ducts choked with oak leaves and acorn debris pulled in through soffit and roof returns. The combination doesn’t exist in drier Simi Valley or less wooded Agoura Hills. We adjust our approach: heavier rotary brush contact for the leaf litter, then negative-air extraction to pull ash and moisture-loving growth out of the system.
Our Main Thousand Oaks Services
Thousand Oaks homeowners call us most often for these three jobs. Each has its own page with full pricing, process details, and neighborhood-specific notes.
Air Duct Cleaning in Thousand Oaks
We clean the full supply and return network with Rotobrush rotary brush systems and Nikro negative-air machines, pulling debris through the trunk line rather than pushing it into the living space. In Thousand Oaks, we pay special attention to ceiling returns under oak canopy, where damp leaf fragments cling to duct walls. Every job gets a written price before we start and before-and-after photos of your own ducts. Air Duct Cleaning in Thousand Oaks has full details.

Dryer Vent Cleaning in Thousand Oaks
Dryer vent blockages are a leading cause of house fires, and Thousand Oaks’ older ranch homes often have long vent runs through crawl spaces or roof caps that sag and collect lint. We clear the full run from back of dryer to termination, then test airflow with a manometer. If the vent fails our post-cleaning flow test, we note it in writing. Dryer Vent Cleaning in Thousand Oaks covers pricing and scheduling.

Duct Sealing in Thousand Oaks
Original sheet metal ducts in 1960s-70s Thousand Oaks homes often leak 20 – 30% of conditioned air into attics and crawl spaces. We seal accessible joints with mastic and mesh, then pressure-test the system to verify the seal. For flex-duct homes in Dos Vientos and Wildwood, we inspect for collapsed runs and kinks that restrict airflow before sealing. Duct Sealing in Thousand Oaks explains the full process.

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 Thousand Oaks
We stock parts and filtration products from Honeywell, Aprilaire, and Guardsman, and our crews run Rotobrush and Nikro equipment on every job. Most filter replacements and component swaps ship same-day or next-day to our Los Angeles office. See our brands for the full roster.
Pricing for Air Duct Cleaning Company in Thousand Oaks, CA
| Service | Typical range in Thousand Oaks |
|---|---|
| Whole-home air duct cleaning (single-story ranch) | $350 – $500 |
| Whole-home air duct cleaning (two-story or flex-duct) | $450 – $650 |
| Dryer vent cleaning (ground-floor termination) | $120 – $180 |
| Dryer vent cleaning (roof or extended run) | $180 – $250 |
| Duct sealing with mastic (accessible joints only) | $400 – $700 |
| Duct sealing with aerosol sealant (full system) | $1,500 – $2,500 |
| AC coil cleaning (included with duct cleaning) | $75 – $125 |
| AC coil cleaning (standalone service) | $150 – $250 |
| Sanitizing/mold inhibitor treatment | $100 – $200 |
| Filter replacement (standard 1-inch) | $15 – $35 per filter |
| Filter replacement (media or HEPA upgrade) | $45 – $120 per filter |
Prices move up in Thousand Oaks when we find heavy oak debris requiring extra brush passes, or when post-fire ash has bonded to duct walls. We give one flat price per system, agreed in writing before any work starts. No per-vent pricing, no add-ons at the door.
Neighborhoods We Serve in Thousand Oaks
We cover the full city from the 101 corridor to the Santa Monica Mountains foothills. Most appointments book within a week, with dispatch coordinated from our Los Angeles office to keep crews inside the quoted arrival window.
- Newbury Park
- Lynn Ranch
- Dos Vientos
- Wildwood
- Conejo Valley floor (central Thousand Oaks)
Service Area – Cities Near Thousand Oaks
Our crews work throughout Ventura and western Los Angeles counties. If you’re just outside city limits, we likely still cover you. We regularly schedule jobs in Westlake Village, CA, Oak Park, CA, Agoura Hills, CA, and Simi Valley, CA. Call to confirm coverage for your address.
Serving Thousand Oaks, CA - Our Local Coverage Area
We’re based in the Thousand Oaks 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 Thousand Oaks
Most Thousand Oaks HOAs do not require pre-approval for interior duct cleaning, but gated communities like Dos Vientos may need a vendor gate pass. We handle the check-in process when you book; just mention your community name. Call (361) 326-5060 and we’ll confirm what’s needed.
We prioritize post-fire calls for smoke odor and ash residue, typically scheduling within 48 – 72 hours during active event periods. The work involves heavy-duty negative-air extraction and often a sanitizing treatment. We photograph the duct condition before and after so you have documentation for insurance if needed.
Yes. Those 1960s – 1970s homes are a core part of our Thousand Oaks workload. Original sheet metal ducts with short runs clean quickly, but we always inspect for asbestos tape on older joints and advise accordingly. We do not disturb asbestos-containing materials; if found, we note it and stop work until proper abatement is arranged.
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 Thousand Oaks Customers Say
"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."Sealed some leaking duct joints in the crawl space with mastic. Rooms that were always cold now get air."
- Ronald W.




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