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.
Lennox Air Duct Cleaning in Sherman Oaks, CA
We provide independent Lennox air duct cleaning and duct repair across Sherman Oaks, with a focus on the dust-loading behavior of these systems after Santa Ana wind events. The one thing that makes our Lennox work different here: we treat duct cleaning as a diagnostic pass, not just a vacuum job. A Lennox system in Sherman Oaks needs both clean ducts and sealed connections, because the Valley’s windblown dust finds every gap in the system. Call (833) 589-9715 for a free estimate.
Why Sherman Oaks Residents Choose Us for Lennox Service
We know how Lennox duct systems behave in Sherman Oaks houses. The air handlers, flex-duct collars, transition fittings, and coil cabinet interfaces on Lennox equipment follow specific patterns when they age, and those patterns play out differently in a 1960s Valley tract house than in a coastal condo. Stan Merrick, our owner, studied HVAC systems at Los Angeles Valley College in Valley Glen and spent years in residential service across the San Fernando Valley before starting Onyx Duct Cleaning in 2013. That background shapes how we approach every Lennox system: we diagnose before we clean, and we fix what the cleaning exposes.
We are an independent Sherman Oaks service provider, not a manufacturer-affiliated shop. That matters because our recommendations come from what the ductwork actually needs, not a corporate playbook. We use contractor-grade Rotobrush contact-cleaning systems and Nikro HEPA vacuum equipment, the same platforms restoration crews use. For Sherman Oaks homeowners, that means dust and ash get captured at the source, not recirculated into the living space.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Common Lennox Air Duct Cleaning Problems We Solve in Sherman Oaks
- Cracked or disconnected flex-duct collars at the air handler plenum. In Sherman Oaks attics, heat cycling and fine dust accelerate collar degradation on older Lennox installations. A collar that separates at the plenum means the system is pulling attic air directly into the supply stream.
- Accumulated fine dust and ash in return-air boots and registers. After a Santa Ana event, Lennox return boots in hillside homes south of Ventura Boulevard collect a visible layer of beige Valley dust and ash within days. This restricts airflow at the intake before the air even reaches the filter.
- Leaking mastic or tape at Lennox metal duct joints. Dry heat and thermal expansion crack old sealant on metal duct runs. These gaps let dust-laden attic air enter the supply side downstream of the filter, which means conditioned air arrives dirty.
- Evaporator coil fouling from windblown debris and pollen. Basic one-inch filters don’t catch everything that Santa Ana winds push through Sherman Oaks. Debris that bypasses the filter collects on the coil, reducing airflow and making the Lennox air handler work harder than it should.
- Undersized flex-duct retrofits that leak into the attic. Many Sherman Oaks ranch homes from the 1940s through 1970s got flex duct retrofitted decades ago. The runs are often too small for modern Lennox air handlers, and the leaks mean you’re paying to condition the attic.
Lennox Service in Sherman Oaks: What Local Conditions Mean for Your Equipment
Here’s what we see consistently in Sherman Oaks that doesn’t show up in other parts of the Valley. The Sepulveda Pass funnels Santa Ana wind directly into the hillside streets south of Ventura Boulevard, and that means fine dust and ash load into return-air intakes faster than almost anywhere else nearby. A Lennox return-air boot on a hillside street can develop a thick film of beige dust in under a week after a strong wind event. If the flex-duct collar at the plenum is even slightly loose, that dust bypasses the filter entirely and heads straight for the evaporator coil and supply registers. For Lennox owners in this part of Sherman Oaks, post-Santa-Ana duct inspection is not preventative maintenance. It’s a response to a known, recurring condition.
After a particularly strong Santa Ana event, we were called to a 1960s ranch home on Longridge Avenue in Sherman Oaks where the homeowner’s Lennox Merit series system was struggling to maintain airflow. Our tech found the return-air boot packed with fine beige dust and ash, and a disconnected flex-duct collar at the plenum. We cleaned the entire return side, reattached and sealed the collar with mastic, and installed bird guards on the outdoor vents; the system’s airflow was restored to its rated level.
Lennox Models & Products We Service in Sherman Oaks
We service the full range of Lennox residential duct systems, including the Signature Collection (SL280V, SLP98V, and similar), the Elite Series (EL180, EL195, and similar), the Merit Series (ML180, ML193, and similar), and legacy CompleteHeat systems still running in older Sherman Oaks homes. Our work centers on the ductwork itself: return duct cleaning, flex duct repair, and duct sealing. When we repair a Lennox duct system, we use OEM Lennox parts for critical components like flex-duct collars and transition fittings when available, and high-quality aftermarket equivalents for standard hardware. We give an honest repair-versus-replace assessment based on the condition of the entire duct run, not just the immediate problem.
Air Duct Repair is a standalone service with us, which matters for Lennox owners because cleaning a leaking duct system without sealing it means you’ll be dusting your furniture again in a month. We clean what’s in your ducts. We also fix what’s wrong with them.
See the difference
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After
Before
After
Before
AfterLennox Service Pricing in Sherman Oaks
Pricing for Lennox duct cleaning in Sherman Oaks depends on the size of the home, the number of returns, and the condition of the ductwork. A typical single-system ranch home usually runs between $450 and $900 for a full source-removal cleaning. Larger homes with multiple Lennox air handlers or extensive flex-duct runs can range from $900 to $1,800. If we’re doing flex duct repair or duct sealing in addition to cleaning, the written estimate covers those line items separately so you know exactly what you’re approving.
Every estimate is free, and the price is set per job by the written estimate before work begins. We don’t quote a low teaser price and then add per-vent fees once the van is in the driveway. Call (833) 589-9715 for an exact quote. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Serving Sherman Oaks, CA – Our Local Coverage Area
We serve Sherman Oaks and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Lennox Air Duct Cleaning in Sherman Oaks
Santa Ana winds push fine dust and ash down the Sepulveda Pass and directly into Sherman Oaks, especially the hillside streets south of Ventura Boulevard. Your Lennox return-air intakes pull that dust in through the registers, and if any flex-duct collar or metal joint is loose, the dust bypasses the filter and enters the supply side. Call (833) 589-9715 for a free assessment, and we’ll show you exactly where the dust is getting in.
Look for these signs: rooms that never reach the thermostat setting, visible dust accumulating quickly after cleaning, higher energy bills with no change in usage, and a musty attic smell near the vents. In Sherman Oaks attics, flex-duct collars at Lennox air handlers dry out and separate over time. A disconnected collar means the system pulls attic air instead of return air, and the fix is usually a replacement collar and mastic seal rather than a full duct replacement. Call (833) 589-9715 and we’ll inspect the duct run.
It’s common here, but not normal in the sense of acceptable. Sherman Oaks dust load is high year-round, and Santa Ana events spike it dramatically. When the coil gets fouled, airflow drops and the Lennox system runs longer cycles to compensate. The fix is a proper source-removal cleaning of the duct system plus a coil inspection, not a quick filter change.
We use Rotobrush contact-cleaning systems to dislodge debris at the duct wall, paired with Nikro HEPA vacuum equipment that captures particles down to 0.3 microns. This is source-removal cleaning: the dust is contained and removed, not blown around. We also deploy Abatement Technologies filtration equipment for jobs where contamination containment matters, like post-renovation dust in Sherman Oaks remodels along the Ventura Boulevard corridor.
Yes. We work on Legacy CompleteHeat, Merit Series, Elite Series, and Signature Collection duct systems. The ductwork issues differ by era, but our process is the same: inspect, clean, seal, and verify. Some older Sherman Oaks homes have original 1960s duct runs retrofitted to newer Lennox air handlers, and those mixed systems need particular attention at the transitions. Call (833) 589-9715 for an exact quote. Estimates are free.
Service Areas Near Sherman Oaks
We serve Sherman Oaks and the surrounding communities, including Van Nuys, Valley Glen, North Hollywood, the NoHo Arts District, Toluca Lake, and Woodland Hills. Each area has its own housing patterns and ductwork quirks, and we apply the same source-removal standard everywhere we work.
Book Your Lennox Service in Sherman Oaks Today
Your Lennox duct system carries the air you breathe in every room of your Sherman Oaks home. Clean air isn’t a luxury – it’s just what the system is supposed to deliver. Call (833) 589-9715 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by Stan Merrick, Owner at Onyx Duct Cleaning, serving Sherman Oaks since 2013.