Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Castaic
Air duct cleaning in Castaic typically runs between $425 and $1,100 for a full system, depending on the number of HVAC systems and the condition of your ductwork. Most Castaic homes have two or three systems, so we price per system, in writing, before any work starts. If you’re near Lake Hughes Road, Hillcrest Parkway, or the newer tracts off The Old Road, our crews know the housing stock and the dust conditions you deal with every summer. Call (661) 523-0295 for a straight answer and a written quote.
Roy Castellanos leads our Castaic scheduling and dispatch, and he knows this valley’s wind patterns well enough to tell you where the ash ends up. You don’t need a lecture about air quality. You need someone who shows up, prices the job honestly, and proves the work was actually done. That’s what we do.
Why Hollis Air Duct Santa Clarita Is Castaic’s Preferred Air Duct Cleaning Company
Castaic homeowners choose us because we operate under The Garrison Standard: arrive inside the quoted window, put the price in writing, complete the work by the book, and leave the site clean. No bait pricing, no surprise invoices, no crew that disappears after the van pulls out. That discipline matters more in Castaic than in most places, because the homes are bigger, the runs are longer, and the dust load from the surrounding hills is heavier.
Our technicians are background-checked and uniformed. Before they walk into your home, you know who they are and what they’re doing there. Every job is documented with a camera inspection before and after, so you can verify what was removed from ducts you’ll never see with your own eyes. And if the work fails within a year, the 365-Day Done Right Promise means we return and make it right at no charge, including a free second visit. That’s not an estimate friendly promise. It’s written on every invoice.
We answer our phones with a live person, 24/7. No voicemail loops. When you call about air duct cleaning in Castaic, you talk to a person who can schedule a visit and give you honest price ranges before anyone gets in a truck.
Styles & brands we work with




Air Duct Cleaning Services in Castaic
Air Duct Cleaning Services in Castaic means removing the dust, ash, pet dander, and construction debris that build up inside your supply and return ductwork. In this valley, that buildup is heavier than most homeowners expect, because Santa Ana winds push fine particulate from the Angeles National Forest and the open space around Castaic Lake directly into HVAC systems.
A full system cleaning for a typical Castaic home runs $425 to $850 for one HVAC system. Multiple systems cost more, but we give you one written flat price per system before any work begins. No per-vent pricing games, no add-ons at the door.
Residential Supply and Return Duct Cleaning
We clean both the supply side and the return side on every job. Some crews skip the return side on two-story Castaic homes, and that leaves construction debris from the original 1990s and 2000s build sitting in flexible ducts for years. Your blower motor works harder against that restriction, and your energy bill reflects it.

Full System Cleaning with Video Inspection
Our full system package includes a video inspection of the main trunk lines and branch runs. You see the before and after on camera. When we pull two grocery bags of gray ash and drywall dust out of a three-zone custom home off Ridge Route Road, you have the footage to prove it.

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.
HVAC Duct Cleaning in Castaic
HVAC Duct Cleaning in Castaic means cleaning the complete path air travels through your home: return registers, return ductwork, the air handler cabinet, the evaporator coil, and the supply ducts. In a Castaic tract home with original 1990s flexible ducts, that path is often clogged with a mix of construction dust, pet hair, and wildfire ash that has been recirculating for years.
Expect to pay $500 to $1,100 for a thorough HVAC duct cleaning on a larger Castaic property with two or three zones. We price each system separately and put the total in writing before we touch anything.
Negative-Air Method with HEPA Filtration
We use truck-mounted negative-air machines with HEPA filtration, the same commercial setup you’d find on a Los Angeles hospital job. The machine creates continuous suction at the register while we agitate the duct walls with rotary brush systems from Rotobrush and Nikro. That’s the right way to remove fine ash without blowing it back into your living room.
Filter and Coil Maintenance During Cleaning
When we clean, we check the filter and the evaporator coil. On Castaic homes near open space, an Aprilaire media filter can clog in months, not years. We’ll show you what we find and recommend replacement filters from Honeywell or Aprilaire that fit your system.
Trusted Brands We Service in Castaic
We service and maintain systems built around the brands most common in Castaic homes: Trane, Carrier, Lennox, Goodman, and Rheem. For filtration, we stock media cabinets and filters from Honeywell and Aprilaire, which matter a lot when you live within a mile of open chaparral and get Santa Ana blow-through every fall. Our negative-air equipment from Nikro and Abatement Technologies handles the fine particulate that a shop vac simply can’t capture. When a Castaic customer needs replacement filters or duct sealing after a cleaning, we already know what fits their system and can bring it on the first trip.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Cleaning Problems We See in Castaic Homes
- Ash coating on supply registers after wildfire season. Even with windows closed, fine gray ash from nearby burns settles inside supply ducts. A standard vacuum pass won’t remove the odor; negative-air extraction with HEPA filtration will.
- Construction debris left in flexible ducts from the original build. Many 1990s and 2000s tract homes in Castaic still have drywall dust, sawdust, and even fast food wrappers in the return ducts. This restricts airflow and shortens blower motor life.
- Return-side neglect on multi-zone hillside properties. Techs in a hurry clean the supply side and skip the return. On a three-zone custom home, that leaves half the system dirty and the homeowner with no way to verify it.
- Clogged media filters near the lake and open space. Homes backing up to Castaic Lake or the ridgelines around Hillcrest collect more dust than the valley floor. Filter clogging leads to static pressure spikes and higher cooling bills in July.
Pricing for Air Duct Cleaning in Castaic, CA
A single-system air duct cleaning in Castaic usually runs $425 to $600. A two-system home with standard 1990s flexible ducts runs $700 to $900. A three-zone custom hillside property off Ridge Route or Lake Hughes Road runs $900 to $1,100. Those are whole-system prices, not per-vent teaser rates. The price you see on the written estimate is the price you pay. The factors that move the number are the number of systems, the footage of ductwork, and how long the ductwork has gone without maintenance. We’ll walk through the spec with you before we start. Call (661) 523-0295 for a written quote, no visit required for a range, and a firm price confirmed before we begin.
We Also Serve Cities Near Castaic
Our crews cover Castaic and the surrounding Santa Clarita Valley communities, including Stevenson Ranch, Santa Clarita, Porter Ranch, and Chatsworth. If you’re in one of those areas and want the same written pricing and camera documentation, call us at (661) 523-0295. Read more about our Air Duct Cleaning process or see how we work across Castaic neighborhoods and nearby communities.
Serving Castaic, CA - Our Local Coverage Area
We’re based in the Castaic 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 Castaic
Wildfire smoke deposits a fine layer of ash and soot on the interior walls of your ductwork, and that ash releases odor every time the blower runs. A proper cleaning with negative-air extraction and HEPA filtration removes the source of the odor, not just the smell in the air. We cleaned a three-zone system in a Castaic hillside custom home off Ridge Route Road after a brush fire near Lake Hughes. The homeowner had closed all windows, yet our camera inspection showed fine gray ash coating the supply ducts and a clogged Aprilaire filter. We used negative pressure with HEPA filtration on every run, and the smoke odor was gone that afternoon. Call (661) 523-0295 if you smell smoke every time your AC kicks on.
Because a three-zone custom home is three separate jobs, and a square-footage quote won’t tell you anything real. Per-system pricing gives you a written total that matches the actual equipment in your house. You know what each system costs before we start, and that number doesn’t move at the door.
You should get a before-and-after video inspection of the main trunk lines and branch runs. If a company won’t show you the inside of your ducts on camera, you can’t verify any work was done. We document every job, and the footage is yours to keep. We do not rely on a tech’s word that the ducts are clean; we prove it. Call (661) 523-0295 and ask about our video documentation.
They really do. Castaic sits in the Santa Clarita Valley wind corridor, and when the Santa Anas blow, they carry fine dust and ash from the Angeles National Forest and the open ground around Castaic Lake right into your return air openings. We see a measurable uptick in dust load inside supply registers after every wind event, especially in newer tracts along The Old Road and Hillcrest Parkway. That’s not marketing; that’s physics.
Yes, often by a noticeable margin. Original flexible ducts from the 1990s sag and collect debris at the low points. Cleaning those runs restores static pressure and lets the blower move air the way it did when the system was new. That means better cooling upstairs and lower run times. Call (661) 523-0295 to schedule a free estimate and find out what your runs actually look like.
Call (661) 523-0295 now for a written quote on air duct cleaning in Castaic. Roy Castellanos and our scheduling team answer live, 24/7. The price is written before the work starts. The guarantee is written and covers your system for a full year. No fine print, no pressure, no games.
Written by Roy Castellanos, Owner at Hollis Air Duct Santa Clarita, serving Castaic and the Santa Clarita Valley.