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.
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AfterLennox Air Duct Cleaning in Los Angeles, NY | CleanRun Air Duct Cleaning
Air Duct Cleaning - Los Angeles for Lennox systems runs $420-$780 for a whole-home system in a typical 1,500-2,500 sq ft tract house, with flex-duct replacement adding $180-$320 per branch when attic heat has destroyed the inner liner. We’re CleanRun Air Duct Cleaning, and we’ve been under the raised foundation slabs and through the attic hatches of Los Angeles County homes since 2013. If you own a Lennox furnace pushing air through original ductwork in this basin, the conversation we need to have is about what 148°F attics and Santa Ana ash do to flex-duct liners and MERV filters. Call (806) 606-6902 for a written price before any panel comes off.
Why Los Angeles Residents Choose Us for Lennox Service
Lennox builds furnaces and air handlers that show their stress in the ductwork before the unit itself fails. We know that signature pattern because we service Lennox sales & service across Los Angeles every week, from Encino ranch houses to South Bay stucco boxes. Tomas Reyes, our owner and lead technician, grew up in Queensborough and spent years in residential and commercial duct systems before founding CleanRun. When we walk into an LA tract home with a Merit Series furnace cycling hard, he’ll say the same thing he’s said since his Woodside days: the camera goes in first, the number goes in writing second, and nothing starts until both are on the table.
We’re independent technicians, not a Lennox authorized dealer. That independence matters because we’ll recommend the fix that lasts in this basin specifically, even when it means telling a homeowner their flex duct should be replaced with rigid metal instead of another liner that’ll crumble in three summers.
Common Lennox Air Duct Cleaning Problems We Solve in Los Angeles
- Crumbled flex-duct liners in attic-hot tract homes. Lennox Elite and Merit furnaces installed in 1960s San Fernando Valley homes often connect to flex branches whose inner Mylar liner has baked brittle. In Reseda, Chatsworth, and Canoga Park, 140-160°F attic temperatures turn those liners into confetti that feeds straight into the supply registers, which means the contamination source is the duct itself, not just accumulated dust.
- Evaporator coil fouling from sea-salt aerosols and smog. Coastal Lennox Signature Series systems in the South Bay pull air loaded with salt and PM2.5. The coil gets a greasy black coating that restricts airflow and spikes static pressure, so the variable-speed blower compensates and the whole system works harder than it should.
- Wildfire ash packed into return plenums. After Santa Ana events like the Woolsey or Eaton fire, ash and soot settle inside return plenums and onto the heat exchanger. Cleaning the duct runs without addressing the exchanger means the residue re-entrains and coats everything again within weeks.
- Collapsed flex duct tripping blower error codes. Lennox communicating systems with variable-speed blowers will throw fault codes when a collapsed flex duct starves airflow. Homeowners replace motors they didn’t need to because the real problem is a kinked or flattened branch in the attic.
- Black oily residue that isn’t household dust. The LA Basin’s thermal inversion traps PM2.5 at breathing height year-round. Lennox returns here pull in some of the most pollutant-dense ambient air in the country, and that residue on duct walls is smog condensate, not the usual gray fuzz.
BeforeAfterLennox Service in Los Angeles: What Local Conditions Mean for Your Equipment
Here’s the thing about Los Angeles ductwork that doesn’t show up on a spec sheet. The South Coast Air Basin inversion layer sits over this city like a lid, and Lennox systems installed in post-WWII tract homes from the late 1940s through the 1970s are pulling from that trapped air every time the blower cycles. We routinely find duct liners in San Fernando Valley and San Gabriel Valley homes caked with a black, oily film that’s smog condensate, not ordinary household dust. In a Chatsworth or Reseda attic, where original 1960s sheet-metal trunk lines terminate in flex branches whose Mylar has crumbled from decades of heat, the liner itself becomes the contamination source. No amount of negative-pressure extraction fixes that. What fixes it is replacement with R-8 insulated flex or rigid metal, sealed at every joint with mastic, and a static pressure reading before and after so the blower isn’t compensating for a restriction that’s been misdiagnosed as a motor fault.
Lennox Models & Products We Service in Los Angeles
We work on the full residential Lennox range in Los Angeles: Merit Series, Elite Series, Signature Series, and the Dave Lennox Signature Collection. On independent repairs we default to Lennox OEM filters, sealants, and flex duct where it makes sense. But we’ll tell you honestly when aftermarket rigid metal is the smarter install, because another flex liner in a 150°F attic is just a future discovery call. What’s stocked locally for fast Los Angeles turnaround includes the common OEM filter cabinet sizes, mastic, R-8 flex, and coil-cleaning chemistry rated for salt aerosol and combustion particulate. If you have a Lennox air handler we don’t service regularly, we’ll tell you before we schedule the visit.
Lennox Service Pricing in Los Angeles
Whole-home Lennox duct cleaning in Los Angeles runs $420-$780 depending on home size, number of duct runs, and how much of what’s in there is compacted debris. Flex-duct branch replacement adds $180-$320 per branch when an attic inspection shows liner failure. Coil cleaning on a Signature Series system runs $180-$350 as a separate line item, because it’s a different job than duct cleaning and we won’t bury it in a package you didn’t ask for. Why the spread? A 1,100 sq ft North Hollywood bungalow with five runs and accessible attic space lands at the low end. A 2,400 sq ft Santa Clarita two-story with a finished basement and a heat exchanger caked in Bobcat fire ash lands at the high end. Every estimate is written before work starts, and it covers the full job, not a teaser. Call (806) 606-6902 for a number on your specific system, and if you’ve got another company’s written estimate, bring it, we’ll put ours next to it.
Serving Los Angeles, CA - Our Local Coverage Area
We’re based in the Los Angeles 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 - Lennox Air Duct Cleaning in Los Angeles
Yes, if the smoke event was sustained enough that our HVAC Cleaning in Los Angeles addresses when ash was in the air. Wildfire ash and combustion particulates pulled into a Lennox return plenum settle on the heat exchanger and inside the duct walls. A standard cleaning schedule won’t account for that. We inspect with a camera and tell you in writing whether the system needs a deeper cleaning or if the exchanger needs washing. Call (806) 606-6902 and we’ll give you a straight answer.
A persistent blower fault after cleaning usually means a flex duct branch collapsed or kinked in the attic, or the evaporator coil is coated with smog condensate and restricting air. Lennox variable-speed blowers read that restriction and throw fault codes, and no one’s motor replacement fixes the kink. We check static pressure with the system running before and after duct work so the first fix is the right fix.
It helps more in this basin than almost anywhere. A Signature Series coil fouled with sea salt and PM2.5 reduces airflow and lets whatever’s on the coil re-enter the airstream. Cleaning the coil and verifying static pressure can restore the airflow your filter and air purifier depend on. But we’ll tell you plainly if the coil isn’t the bottleneck, because we photograph everything and the camera doesn’t flatter.
Usually yes, if the sheet-metal trunk is intact and sealed. Galvanized duct from the 1960s handles negative-pressure extraction and brush cleaning fine, but the flex branches tied to it are often the real problem, and we’ll show you that on camera before we recommend anything. If the metal is corroded through or the seams have separated to the point where you’re conditioning attic air, replacement may be the honest call.
Yes, in attics that hit 140°F and above, a 10-degree temperature difference across leaky duct seams means you’re paying to condition the attic. Mastic sealing on all joints and connections closes those losses. We verify the difference with static pressure and temperature readings, and you’ll see the sealed joints in the documented photo record we hand over at the end of every job.
Service Areas Near Los Angeles
We serve the Los Angeles basin and the valleys around it: San Fernando Valley, South Bay, San Gabriel Valley, Glendale, Pasadena, and Long Beach. For comparison pages on other metros, see Lennox service in Chicago or Lennox service in Brooklyn. Homeowners in and around Los Angeles service area get the same written-price, photo-record standard everywhere we work.
Book Your Lennox Service in Los Angeles Today
Call (806) 606-6902 and we’ll put a written price in your hand before any work starts. Camera first, written scope second. That’s how it goes, every time.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Los Angeles since 2013.