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 West Covina
Air duct cleaning in West Covina typically costs $340 – $650 for a full system on a single-family home, with most jobs finished in a single day. The price depends on square footage, how many returns the system has, and what we find once the camera goes in. If you live in a 1950s tract home off Cameron or a newer build in the 91792 hills, call us at (855) 382-4683 and we’ll give you a straight answer before any work begins.
We know West Covina’s housing stock because we’ve worked inside it for years. The San Gabriel Valley dust and Santa Ana wind cycles hit every home here, but what’s inside your ducts depends on when your house was built. That matters more than most companies admit. We plan the job around your system’s age, not a one-size-fits-all checklist.
Why Duct Cleaning Downey Is West Covina’s Preferred Air Duct Cleaning Company
Homeowners in West Covina call us because we show up with Rotobrush and Nikro negative-pressure cleaning systems running side by side. Not a shop vac and a brush. The difference shows in what comes out of the ducts, and in the before-and-after photos we give you of your own vents.
Rob Quinlan built this company around a simple position: clean the entire system, find what’s broken, and fix it if you can. Most duct cleaners in West Covina don’t offer air duct repair. We do. That means when we find a collapsed flex run in a 1960s attic, we can replace it on the same visit instead of handing you another contractor’s phone number. West Covina homeowners who’ve dealt with us know that distinction.
We also bring Abatement Technologies filtration equipment on larger jobs, the same category of gear used in remediation work. That’s not a marketing line. It’s what allows us to pull construction dust and fine San Gabriel Valley particulates out of a system without letting them recirculate through your living room while we work.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Commercial Air Duct Cleaning in West Covina
Commercial Air Duct Cleaning in West Covina covers office buildings, medical suites, retail storefronts, and property-management portfolios across 91790 through 91793. The work follows the same core process as residential cleaning but at a larger scale: longer duct runs, more branch lines, rooftop package units instead of hallway closets, and tighter scheduling windows so tenants aren’t disrupted.
A commercial clean in West Covina runs $900 – $2,400 depending on square footage and system configuration. Buildings with kitchen exhaust or a high occupant turnover rate, think medical offices along Vincent or storefronts near the West Covina Mall, need more frequent service. Property managers typically schedule commercial duct cleaning every 2 – 4 years, or at tenant turnover when leases roll.
Tenant Turnover and Occupancy Changes
When a commercial space changes hands in West Covina, the new tenant inherits whatever’s in the ducts. Dust from the previous build-out, drywall residue from partition walls, and years of recirculated air. We schedule these jobs between lease dates and deliver documentation the property manager can file.
Rooftop Unit and Package System Cleaning
Most West Covina commercial buildings run rooftop package units. These pull air from outside, which means Santa Ana wind events load the ducts with valley dust faster than a residential system. We clean from the return drop to the farthest diffuser and inspect the blower cabinet. If the unit has been running dirty for years, we’ll tell you.
Air Duct Cleaning Services in West Covina
Air Duct Cleaning Services in West Covina cover your full ducted HVAC system: supply ducts, return ducts, the plenum, the blower motor housing, and the registers. We don’t do per-vent pricing. One flat price per system, agreed before work starts. That’s the honest way to quote this job, and it’s the only way we’ve ever done it.
A typical single-family home in West Covina runs $340 – $650. Two-story homes or elevations with dual systems run higher. Our estimate is always free and it comes from a visual inspection, not a phone script.
Video Inspection Before and After
We camera the ducts before we clean so you see exactly what’s in there. Then we camera them again when we’re done. You keep both recordings. If there’s a torn flex run in an attic crawlspace or a disconnected joint hidden behind drywall, you’ll see it and we’ll quote the repair separately.

Dryer Vent Cleaning
Lint buildup in a dryer vent is a fire hazard, full stop. In West Covina, where many laundry rooms sit against exterior walls in 1960s construction, short runs are less of a risk than the long, sagging flex runs we find in some hillside homes. We clean the full run from dryer to termination point and check the backdraft damper while we’re there.

Trusted Brands We Service in West Covina
We service and install Aprilaire and Honeywell air-quality systems in West Covina homes. If your ducts are clean but allergens still bother you, a whole-home filtration unit on the return side makes a measurable difference. We stock common Aprilaire media filters and Honeywell bypass components locally, which means West Covina customers aren’t waiting on a parts order for simple replacements. Guardsman-grade cleaning standards apply to every residential job we run, whether it’s a 1,200-square-foot tract home in 91790 or a larger two-story in the 91791 hills.
Common Air Duct Cleaning Problems We See in West Covina Homes
- Construction debris in new builds: Builders leave drywall dust, sawdust, and insulation scraps in the ducts at handover. Homeowners don’t discover it until dust coats the registers within the first month and allergy symptoms flare.
- Collapsed flex duct in 1960s tracts: Original flex runs in 91790 attics bake in summer heat until the inner liner tears or collapses. Cleaning without replacing those sections sends debris downstream and fixes nothing.
- Santa Ana wind dust loading: Fine dust and pollen from the San Gabriel Valley and Puente Hills get pulled into return ducts during wind events. Without a MERV-rated filter on the return side, that material recirculates and cakes onto the blower motor.
- Mildew in attic duct runs: Winter rains combined with dust accumulation in poorly sealed attic ducts create conditions for mildew growth. Homes near the San Jose Hills with older insulation see this more often than newer subdivisions.
See the difference
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After
Before
After
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AfterPricing for Air Duct Cleaning in West Covina, CA
Residential air duct cleaning in West Covina runs $340 – $650 for a full system. Smaller single-system homes with one return may come in at the lower end. Homes with two returns, zoned systems, or heavy construction debris fall toward the top. We quote one flat price per system before any equipment comes off the truck. Dryer vent cleaning adds $75 – $150 depending on run length and access. Air duct repair is quoted separately after a camera inspection, and it’s always optional. Call (855) 382-4683 for a free estimate and we’ll tell you what your system needs and what it costs, before you commit to anything.
We Also Serve Cities Near West Covina
Our Air Duct Cleaning team works throughout the San Gabriel Valley. In addition to West Covina, we regularly schedule jobs in El Monte, Whittier, Pico Rivera, and Monterey Park. If you’re in one of those cities, the same equipment and the same flat-rate pricing apply. We’ve spent enough time on the 60 and 10 corridors to know the housing stock and the dust patterns in every one of these communities.
Serving West Covina, CA – Our Local Coverage Area
We’re based in the West Covina 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 West Covina
Because builders in the 91791 and 91792 hillside subdivisions routinely leave drywall dust, sawdust, and insulation scraps inside the ducts at handover. It’s not a code violation, and the builder won’t flag it. You’ll notice it as a fine white film on your registers within the first month and dust settling on every surface. We clean the system with negative pressure and HEPA filtration, then seal the air handler and blower area so the dust stops recirculating. Call (855) 382-4683 and we’ll show you what’s in your ducts before we clean them.
Santa Ana winds drive fine dust and pollen from the San Gabriel Valley and Puente Hills directly into return ducts, especially in homes with outside air intakes or poorly sealed attic ductwork. After a heavy wind season, that material cakes onto the blower motor and evaporator coil, reducing airflow and pushing dust through every register. If your system runs harder during Santa Ana events and you notice more dust around supply vents, it’s time for a cleaning. Call (855) 382-4683 for an estimate and we’ll check the return side with a camera.
Expect original sheet-metal trunk lines with flex branches that have been baking in attic heat for 50 – 60 years. The flex lining tears or collapses, and loose joints leak conditioned air into the attic. Cleaning alone won’t fix that; the damaged sections need repair or replacement. This is exactly why we offer Air Duct Cleaning in West Covina with repair as a standalone service. We can clean and repair in the same visit, with a camera inspection so you see exactly what’s wrong before you pay for a fix.
Yes. We follow NADCA’s source-removal methodology on every job in West Covina: clean the entire system under negative pressure, remove debris at its source, and verify the results with a camera. That means we don’t just brush debris off the duct walls and leave it in the system. We extract it. Our Rotobrush and Nikro equipment paired with Abatement Technologies filtration is designed for exactly this standard. If a company can’t name the standard they follow, ask why. Then call (855) 382-4683.
It can, if the odor is coming from the ducts themselves. Mildew grows in attic duct runs when winter moisture combines with years of accumulated dust, especially in older 91790 homes with poor duct sealing. Cleaning removes the organic material the mildew feeds on. If the flex duct is torn or the insulation is wet, we’ll quote a repair. If the odor source is elsewhere, a crawlspace or water damage behind drywall, we’ll tell you that too, because cleaning ducts won’t fix it. Call (855) 382-4683 and we’ll give you an honest assessment.
Contact Duct Cleaning Downey for Air Duct Cleaning in West Covina
If you’re in West Covina and suspect your ducts are dirty, damaged, or full of construction debris, call us at (855) 382-4683. We’ll schedule a free estimate, put a camera in your system, and show you what we find. One flat price per system, agreed before work starts. We clean it. We repair it. We improve it.
Written by Rob Quinlan, Owner at Duct Cleaning Downey, serving West Covina and the San Gabriel Valley.