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 HVAC Cleaning Across Thousand Oaks
HVAC cleaning in Thousand Oaks typically costs between $320 and $690 for a whole-system job, depending on the home’s age and the condition of the ductwork. Most homes built in the 1960s through 1980s here need source removal, not a quick blow-out, because of what the Conejo Valley environment deposits inside the system. If your system is running loud, dusty, or stale-smelling, call us at (806) 606-6902 and we’ll give you a written price before any work starts. Tomas Reyes leads our Thousand Oaks crews, and the team that shows up is background-checked, uniformed, and named before arrival.
Why CleanRun Air Duct Cleaning Is Thousand Oaks’s Preferred HVAC Cleaning Company
Since our first job in 2013, we’ve been through more Thousand Oaks ductwork than we can count, and we’ve documented every run with before-and-after photos on every visit. That photo record is not a marketing gimmick; it’s the standard deliverable we hand to every homeowner in Westlake, Newbury Park, and the Wildwood neighborhoods. Our HVAC Cleaning crew opens the plenum, photographs what’s actually in there, and then shows you the proof when the work is done. Under Haven Standard Clause 1, you get a written price before a single panel comes off, and that number doesn’t change because we found something unexpected.
We carry a strong reputation in the Conejo Valley because we’ve spent years cleaning out what Santa Ana winds, oak pollen, and post-Woolsey-Fire ash leave behind. You won’t see decorative badges on our trucks, but you will see manufacturer names like Rotobrush and Abatement Technologies, because homeowners here research what equipment is being used before agreeing to a price. Every job is backed by our 365-Day Done Right Promise in writing, and we offer a free second opinion on any written estimate from a competitor.
Our HVAC Cleaning Services in Thousand Oaks

Whole-system HVAC cleaning is the service Thousand Oaks homeowners call us for most often, but the work breaks down into specific component-level jobs. Each one matters for different reasons in this climate. Here’s what we actually do on a typical Conejo Valley home:
Evaporator Coil Cleaning
In Thousand Oaks, the evaporator coil collects a paste of fine ash from fire seasons and pollen from the city’s live oak and valley oak canopies. That layer insulates the coil, reduces heat transfer, and forces the system to run longer. We remove the coil access panel, document the buildup, and clean with professional-grade equipment built for this purpose. A fogging sanitiser won’t remove that particle layer. This is a physical removal job.

Air Handler Cleaning
The air handler in a 1970s Thousand Oaks ranch home is often buried in an unconditioned attic where marine layer moisture from Point Mugu condenses inside the cabinet. That moisture combines with dust and creates a paste that clogs the blower wheel and reduces airflow. Our crew pulls the blower, photographs the housing, and cleans it to the manufacturer’s spec. Then we show you the before-and-after.

Condenser Cleaning
The outdoor condenser on a Thousand Oaks lot picks up chaparral dust, dry grass clippings, and whatever the Santa Anas push through the neighborhood. A clogged condenser coil drives head pressure up and shortens compressor life. We document the coil condition, then clean the fins with the right pressure and technique so you’re not paying for a full replacement two years early.

Air Handler Cleaning (Second Pass: Heat Exchanger Context)
Homes near the Lang Ranch and Dos Vientos areas that ran HVAC during the Woolsey Fire evacuation orders often have heat exchangers coated in the same fine gray ash we find in the ducts. That ash corrodes surfaces over time and reduces heat transfer efficiency. We inspect and clean the heat exchanger as part of the full system job, and the photo record includes this component specifically.

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
AfterTrusted Brands We Service in Thousand Oaks
We clean and service all major residential HVAC brands in Thousand Oaks, including Carrier, Lennox, Trane, Rheem, Goodman, and York. Because we work in Thousand Oaks weekly, we carry common filters, access panels, and sealants for the setups most common in 1960s-1980s tract housing, so a routine cleaning doesn’t become a two-trip job. If you’re not sure what’s inside your mechanical closet, tell us what you know when you call (806) 606-6902, and we’ll bring the equipment that matches.
Common HVAC Cleaning Problems We See in Thousand Oaks Homes

- Post-Woolsey-Fire ash inside duct runs: Even homes on the edges of the burn zone in Wildwood and Lang Ranch have a fine gray coating inside supply and return ducts because negative pressure from running HVAC pulled smoke in during evacuation. A cheap blow-and-go loosens that ash without capturing it, and it resettles in the air handler.
- Oak pollen accumulation on coils: Thousand Oaks’s namesake oak woodland produces a dense seasonal pollen that coats evaporator coils and heat exchangers. That layer reduces efficiency and keeps the system running longer every cycle.
- Marine layer moisture in unconditioned attic ducts: Humidity from the Point Mugu coastal zone moves up the Conejo Valley and condenses inside aged fiberglass duct board in attics. That moisture encourages mold growth inside the duct board itself, not just on the surface.
- Delaminated fiberglass duct board in 40-60 year old homes: Most Thousand Oaks housing stock dates from the mid-1960s to mid-1980s, and the original duct board or early flex duct is now breaking down internally. Collapsed sections and internal delamination restrict airflow and send fiberglass particles into the living space.
Pricing for HVAC Cleaning in Thousand Oaks, CA
Here’s what we write on estimates for Thousand Oaks homes, and these are whole-system ranges we honor before work starts:
- Evaporator coil cleaning only: $180-$340
- Air handler and blower cleaning: $160-$310
- Condenser coil cleaning: $120-$280
- Whole-system HVAC cleaning (all components, full duct run): $320-$690
The variables are real: a 4-bedroom two-story in North Ranch with 18 duct runs costs more than a 3-bedroom ranch in Newbury Park with 10 runs. A home with post-fire ash plus delaminated duct board sections will be at the higher end because it’s a source-removal job plus repair, not a wipe-down. You get a written price before any work begins, under Haven Standard Clause 1, and that number is the number on the invoice. Nothing else.
We Also Serve Cities Near Thousand Oaks

Our crews work throughout the Conejo Valley and adjacent communities. If you’re in Simi Valley, Moorpark, Calabasas, or West Hills, we clean and document HVAC systems the same way, with the same written-price rule and the same 365-Day Done Right Promise. The drive from our Los Angeles dispatch office is short, and we schedule Thousand Oaks-area routes to avoid wasting your afternoon.
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 - HVAC Cleaning in Thousand Oaks

Because the negative pressure of running HVAC during evacuation orders pulled fine smoke and ash deep into duct runs, where it settled inside components that never got cleaned. We’ve documented this in homes across Lang Ranch, Wildwood, and Dos Vientos that had zero visible exterior fire damage. The only way to confirm it is with a camera, and the only way to remove it is source removal with HEPA filtration and agitation tools. A register-level wipe or fogging treatment doesn’t touch what’s inside the duct board. If you haven’t had a camera inspection since November 2018, call (806) 606-6902 and we’ll document what’s actually in there.
Thousand Oaks’s live oak and valley oak canopy produces a dense, sticky pollen that coats evaporator coils and heat exchangers every spring. That layer acts as insulation, reducing heat transfer and forcing longer run cycles. A fogging “sanitiser” doesn’t remove the particle layer; it just wets it. The fix is physical removal of the pollen layer, then a coil treatment to slow re-adhesion. We show you the coil before and after so you see what was actually removed.
A fogging sanitiser mists a chemical into the duct system; it does not remove ash, pollen, dust, or mold that is physically adhered to surfaces. A real HVAC cleaning in Thousand Oaks uses source removal: HEPA-filtered negative pressure, agitation tools to break debris loose, and physical extraction of the contamination. Then we photograph the result. If a company offers a $79 fog-and-go, what you’re paying for is a smell, not a clean. We’ll put our written price next to theirs any day, and we’ll document every run we actually cleaned.
Every three to five years is reasonable for most Thousand Oaks homes, but homes in the wind corridor on the north side of the city - particularly around Westlake and the 101 corridor through the Conejo Grade - collect fine chaparral dust faster. If you ran your HVAC during any fire event between 2018 and now, or if you have original duct board from the 1970s, an inspection at three years is worth it. Inspection means a camera, not a glance. Call (806) 606-6902 and we’ll tell you what we find.
Yes, marine layer moisture from the Point Mugu and Malibu coast moves up the Conejo Valley and condenses inside unconditioned attic duct runs, especially in aged fiberglass duct board. That moisture supports mold growth inside the duct board itself, which a surface wipe or fogging cannot reach. A documented HVAC cleaning removes the affected material where possible, cleans the metal surfaces, and then we advise on sealing or replacement for duct board that’s too far gone. We show you the inside of every run before and after.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Thousand Oaks since 2013.




Before
After
Before
After