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 Air Duct Cleaning Across Covina
Air duct cleaning in Covina typically runs $350-$650 for a full residential system, and most jobs are scheduled within a few days of your call. We’re the local team that serves Covina from our Los Angeles dispatch office, and we know the specific duct problems this city’s older housing stock creates. If your home was built between the 1950s and 1970s, there’s a good chance your ductwork has never been properly cleaned, and may be deteriorating in ways that surface vacuuming won’t fix. Call us at (469) 972-3151 for a free written estimate before any work begins.
Our Air Duct Cleaning crews work the full Covina area, from the older ranch tracts near downtown out to the neighborhoods bordering West Covina and Glendora. We don’t just clean what you can see. We camera-inspect the full run, check for crushed or disconnected flex duct, and look for the crumbling fiberglass liner that’s common in San Gabriel Valley homes where central air was retrofitted after original construction. That’s the difference between a company that knows Covina and one that treats every house the same.
Why Kestrel Air Duct Cleaning Is Covina’s Preferred Air Duct Cleaning Company
We’ve built our reputation in Covina by doing what we said we’d do, at the price we wrote down before we started. The Kingswell Guarantee, which governs every job we’ve done since founding in 2004, means four things: a written price before any work begins, a defined arrival window, a clean job site, and a written guarantee with a free return visit if the work fails within the guarantee period. No exceptions. No door-step revisions.
Covina homeowners call us back because our technicians are background-checked, uniformed, and trained to spot the problems that are specific to this city’s housing. We show up in the window we gave you. We put the 365-Day Done Right Promise in writing on every invoice. If the work falls short within that year, we return and make it right at no charge. That’s not a courtesy we extend when we feel like it. It’s documented on every job.
Our calls are answered by a live person, 24/7. Not a voicemail queue. Not an automated system that makes you press buttons. A real conversation, any time of day, with someone who can schedule your Covina appointment or connect you directly with a technician.
HVAC Duct Cleaning in Covina
HVAC Duct Cleaning in Covina means more than pushing a brush through your vents. It means addressing the specific degradation that 50-plus years of San Gabriel Valley air has inflicted on duct systems that were often retrofitted into ranch homes never designed for central forced-air. Our process starts with a video inspection so you see what we see: accumulated ash and fine particulates from wildfire seasons, smog byproducts trapped by the mountain bowl, and often the crumbled fiberglass liner that’s shedding fibers into your airstream.
We use Rotobrush rotary brush systems to dislodge debris at the duct wall, followed by Nikro negative-pressure units that pull contaminants out of the system entirely. Abatement Technologies HEPA filtration runs continuously during the job to keep loosened particles out of your living space. This matters in Covina, where the smog basin recirculates the same degraded air through closed valleys. Without proper containment, cleaning just redistributes what you’re trying to remove.
Most full HVAC duct cleaning jobs in Covina run $450-$750, depending on system size, accessibility, and whether we find disconnected or compromised duct runs that need sealing. We give you that range in writing before we touch a single vent.
Supply Duct Cleaning
Supply ducts push conditioned air into your rooms. In Covina’s older homes, we often find these runs partially blocked by collapsed flex duct or choked with decades of accumulation. Our supply cleaning includes full brush agitation and negative-air extraction at each register, with before-and-after photos of your own ducts.
Return Duct Cleaning
Return ducts pull air back to the handler, and they’re the intake point for everything in your home’s air. In Covina, that includes the fine ash and particulates that Santa Ana winds drive down from the Angeles National Forest. Return cleaning requires extra attention to HEPA containment, since this is where the system is most vulnerable to drawing in fresh debris during the process.
Vent Cleaning in Covina
Vent Cleaning in Covina addresses the visible registers and the short runs behind them, but also the problems hidden in wall cavities and attic spaces that connect to them. Many homeowners don’t realize that the register itself is just the endpoint. The real work is in the duct behind it, and in Covina’s 1950s-1970s housing, that duct is often in worse shape than the visible grime suggests.
We clean every vent with rotary brush agitation and immediate negative-air extraction. But we also check for proper airflow at each register. A vent that barely blows often signals a crushed flex run or a disconnected joint behind the wall, especially in homes where original construction didn’t include central air and retrofit installers had to thread duct through tight spaces. Finding and fixing these problems is what separates actual vent cleaning from cosmetic register wiping.
Standalone vent cleaning, when the main trunk lines don’t require full service, typically runs $150-$300 in Covina. We only recommend this when our camera inspection confirms the primary ductwork is sound. If it’s not, we’ll show you why and give you the full-system price.
Video Inspection
We feed a camera through your ductwork before we quote and after we clean. You see the accumulation, the damage, and the result. In Covina’s older homes, this often reveals crumbling fiberglass liner or disconnected runs that explain why certain rooms never cool properly. No guesswork. No selling you what you don’t need.
Dryer Vent Cleaning
Dryer vent cleaning is a separate pathway with its own fire risk. The lint you can reach at the trap is a fraction of what builds up in the run. In Covina, where heavy AC use already strains electrical systems, a clogged dryer vent adds unnecessary load and real hazard. We clean the full run from appliance to exterior termination.
Trusted Brands We Service in Covina
Our technicians arrive with professional-grade equipment, not box-store shop vacs. We clean with Rotobrush rotary brush systems, Nikro negative-pressure extractors, and Abatement Technologies HEPA filtration. For homeowners who want to maintain clean air between service visits, we offer Honeywell, Aprilaire, and Guardsman filtration and indoor-air-quality products. We stock Guardsman mastic sealant locally for Covina jobs, which means when we find compromised duct joints during cleaning, we can seal them same-day rather than scheduling a return visit.
Common Air Duct Cleaning Problems We See in Covina Homes
- Crumbling fiberglass duct liner in 1960s ranch homes. The inner liner of early metal ductwork has often degraded into loose fibers after 50-plus years of heat cycling. No amount of vacuuming fixes a duct that’s shedding insulation into your air. We identify this with camera inspection and recommend sealing or replacement.
- Disconnected or crushed flex runs behind walls and in attics. Retrofitted central air in Covina’s original ranch tracts often required installers to force flex duct through tight spaces. We’ve found runs that pull attic air, ash, and debris directly into the system instead of conditioned air from the handler.
- Heavy accumulation of wildfire ash and smog particulates. Covina’s position in the San Gabriel Valley smog basin means fine particulates from Angeles National Forest fires settle in ductwork at rates coastal LA homes don’t experience. Standard cleaning without HEPA containment just redistributes this material.
- Dryer vents choked with lint beyond the trap. The accessible lint screen catches perhaps 25% of what a dryer produces. The rest cakes in the run, restricting airflow, extending dry times, and creating genuine fire risk. We clean the full run to exterior termination.
Pricing for Air Duct Cleaning in Covina, CA
Most full residential air duct cleaning jobs in Covina run between $350 and $650. Larger homes or systems with multiple disconnected runs requiring sealing typically fall in the $550-$850 range. Commercial duct cleaning starts around $800 and scales with system complexity. What moves you within these ranges: the number of air handlers, accessibility of ductwork in attic or crawl spaces, whether we find compromised liner that needs sealing, and if video inspection reveals crushed or disconnected runs that require repair.
We don’t quote per-vent. We don’t bait you with a low coupon and revise upward once the van is in your driveway. The written price we give you before work starts is the price you pay. Every estimate is free, and every estimate includes the camera inspection so you understand what you’re paying for. Call (469) 972-3151 to schedule yours.
We Also Serve Cities Near Covina
Our crews work throughout the San Gabriel Valley, including Air Duct Cleaning in Covina proper plus Azusa, West Covina, Baldwin Park, and Glendora. Scheduling is coordinated from our Los Angeles office, with local technicians dispatched to each community we serve. The same Kingswell Guarantee, the same written pricing, the same equipment and standards apply whether we’re working in downtown Covina or across the valley in Azusa.
Serving Covina, CA - Our Local Coverage Area
We’re based in the 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 Covina
Very likely yes, especially if your central air was retrofitted after original construction. We camera-inspect every 1960s Covina home we enter, and we find degraded fiberglass liner in the majority of them. The material crumbles into loose fibers that enter your airstream. Call (469) 972-3151 and we’ll show you exactly what your ducts look like inside - estimates and camera inspection are free.
Covina sits in a topographic smog basin hemmed in by the San Gabriel Mountains, which trap particulate-laden air and funnel wildfire smoke directly over the city. Your HVAC system filters this same recirculated valley air repeatedly, and without proper cleaning and HEPA filtration during the process, you’re just moving accumulated ash and smog byproducts around your home. Coastal LA communities don’t face this same concentrated exposure.
No. Real air duct cleaning uses rotary brush agitation to dislodge debris at the duct wall, negative-air extraction to pull it out of the system, and HEPA filtration to contain loosened particles during the job. We camera-inspect before and after. In Covina’s older homes, we also check for disconnected runs and crumbling liner that vacuuming alone cannot address. Call (469) 972-3151 for a free estimate that includes the full inspection.
Dryer vent buildup is a leading cause of home fires nationwide, and Covina is no exception. The lint trap catches a small fraction of what your dryer produces. The rest accumulates in the run, restricting airflow and creating heat buildup. We clean the full pathway from appliance to exterior termination. This is a separate service from duct cleaning, and we can bundle it with your appointment.
Yes, particularly if you have crushed flex runs or disconnected joints behind walls. We’ve restored proper cooling to Covina homes simply by reconnecting a separated duct that was starving back bedrooms of airflow. The 100°F-plus San Gabriel Valley summers push systems to their limit, and duct problems that seem minor in spring become obvious in July. A camera inspection will tell us if your ducts are the bottleneck.
Written by Dale Whitmore, Owner at Kestrel Air Duct Cleaning, serving Covina since 2004 under the Kingswell Guarantee.




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