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 West Hills, CA
We clean and seal Lennox ductwork throughout West Hills, with a focus on what canyon-wind grit and wildfire ash do to return ducts, blower wheels, and evaporator coils. As an independent Lennox service provider offering Lennox service in Winnetka and throughout the Valley, we repair what’s failing rather than pushing a system replacement. If your Lennox air handler is short-cycling or your west-facing returns are packed with fine dust after a wind event, call us at (855) 353-1653. Ray Lambert leads our team, and he’s been working on San Fernando Valley HVAC systems since his days studying the trade at Pierce College in Woodland Hills.

Why West Hills Residents Choose Us for Lennox Service
Most duct cleaning companies treat every system the same way. We don’t, because a Lennox air handler in a 1960s West Hills ranch home fails differently than one in a newer Agoura Hills build. Our techs know the Lennox cabinet layouts, the way Merit Series blowers sit in tight attic spaces, and the places where dry West Hills air causes mastic seals to crack and flex joints to pull loose. We’re an independent provider, so we diagnose honestly. If a coil is fouled but structurally sound, we clean and seal it. If a return plenum is leaking, we fix it. We don’t upsell replacements. Ray grew up two blocks from Reseda Park, and he’s spent his adult life working on the same Valley systems he now services for neighbors in zip codes 91307 and 91308. Our equipment matches that focus: Rotobrush rotary brushes for compacted debris, Nikro HEPA-filtered vacuums for containment, and Abatement Technologies gear so the dust we pull out doesn’t recirculate through your living room. You can read more about our approach on our Lennox sales & service page.
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 West Hills
- Lennox air handlers with original flexible return plenums packing with canyon grit. After a Santa Ana event, west-facing return grilles in 91307 fill with fine mineral dust and ash before anything else. That grit gets pulled into the blower wheel, throws it off balance, and cuts airflow until the motor works harder than it should.
- Older Lennox evaporator coils fouling with chaparral pollen and mineral dust. In attic air handlers built into 1950s-1970s ranch homes, the coil sits downstream of a return that often has a leaking flex joint. Pollen from the surrounding oak woodland gets sucked past the gap, coats the coil, and causes icing or high head pressure trips.
- Mastic-sealed Lennox supply runs separating in dry valley air. The dry heat in West Hills makes mastic brittle over time. Flex joints separate at the collar, and separated returns pull attic dust, insulation fibers, and wildfire ash straight back into the airstream after every wind event.
- Lennox cabinet and plenum gaps pulling unfiltered attic air past the filter. When cabinet gaps open up, the filter becomes decorative. The blower wheel and coil load with whatever is in the attic – after a fire season, that means ash and soot circulating through the house.
- Blower wheels caked with layered dust that shortens motor life. A Lennox blower that hasn’t been pulled and cleaned in years collects a hard crust of mineral dust and pollen. The imbalance stresses bearings and can eventually take out the motor. We see this constantly in West Hills homes where the AC runs hard all summer.
Lennox Service in West Hills: What Local Conditions Mean for Your Equipment
Here’s what makes West Hills different from every other Valley city when it comes to Lennox duct work. The Santa Monica Mountains and Santa Susana foothills create a wind funnel that doesn’t exist in Reseda or Granada Hills. When fall and winter canyon winds blow through, the west-facing sides of homes in 91307 catch fine grit and ash before east-facing returns even register dust. A Lennox air handler in a home off a canyon-edge street – think streets threading up toward the open space west of Valley Circle Boulevard – will load its return grilles, blower wheel, and evaporator coil on a schedule tied to wind events, not just summer AC demand. Most duct cleaning companies tell homeowners to clean every three to five years. In West Hills, a Lennox owner who waits that long between wind seasons will notice airflow dropping in January, not August. The dry air compounds the problem: seals crack, flex joints pull apart, and the system starts breathing attic air. That’s the rhythm we service to. It’s a West Hills problem, and it shows up on Lennox cabinets before anything else in the house.
Lennox Models & Products We Service in West Hills
We work on the full Lennox residential range, from Merit Series (ML/XC/EL) systems in mid-century and 1980s-1990s tract homes to Elite Series and Dave Lennox Signature Collection (XC/XP/SLP) units in larger hillside properties near the canyon edges. Older CompleteHeat and integrated systems show up in some of the original 1950s-1970s ranch builds in 91307, and we know their quirks. Parts-wise, we use OEM Lennox components where fit and function demand it – blower wheels, cabinets, control modules – and quality aftermarket flex, mastic, and filter media where they perform identically. We carry a rotating stock of common Lennox-compatible seals, collars, and media in our Reseda shop, which keeps West Hills turnaround reasonable when a return joint separates right before a heat wave. For context on our broader coverage, see our West Hills service area page.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in West Hills
Duct cleaning in West Hills typically runs $350-$650 for a whole-home system, depending on square footage, the number of returns, and how badly the blower and coil have loaded with ash and mineral dust. Evaporator coil cleaning on a Lennox attic air handler adds $150-$300 when it’s fouled enough to affect airflow or cause icing. Duct sealing – mastic and collar repair on separated flex joints – ranges from $200-$500 depending on how many runs have pulled loose. The factors that drive cost here are attic access, canyon-edge dust loading, and whether previous sealing has failed. Our estimates are free, and we quote one flat price per system before work starts. No per-vent pricing. No surprise line items. Call (855) 353-1653 for an exact quote – we’ll walk you through what your Lennox system actually needs.
Serving West Hills, CA – Our Local Coverage Area
We’re based in the West Hills area and know this community well, and we also provide Reseda Lennox service. Use the map below to see our service coverage – if you’re nearby, we can almost certainly help.

FAQs – Lennox Air Duct Cleaning in West Hills
Usually both, but it starts with the ducts. After a Santa Ana or canyon wind event, the west-facing return grilles in 91307 load with fine grit and ash. That restricts return airflow, which raises static pressure, which makes the system short-cycle. If the blower wheel has also collected enough dust to throw it off balance, the problem compounds. We start by cleaning the return and blower, then diagnose whether the coil is fouled or a flex joint has separated. Most short-cycling after a wind event traces back to airflow, not the control board. Call (855) 353-1653 and we’ll figure out which it is.
Yes. Those systems are common in 91307, and the original rigid galvanized or early flex ductwork in those homes is often still in place. We clean Merit Series air handlers, pull and balance blower wheels, and seal the leaking return joints those systems develop after decades of dry Valley air. The cabinet and plenum gaps on older Merit units pull attic air past the filter, so cleaning the coil without sealing the cabinet doesn’t hold. We address both in the same visit.
In most cases, yes. We use Nikro HEPA-filtered vacuums and coil-cleaning tools that reach the coil through the existing access panel. If the coil is badly fouled with compacted chaparral pollen and mineral dust, we remove the panel and clean in place rather than pulling the whole cabinet. That said, if a return flex joint has separated at the collar – common in West Hills’ dry air – the coil will re-foul quickly unless we seal that gap too. Containment matters as much as cleaning, which is why we run Abatement Technologies equipment during the service.
Because the filter only catches what passes through it. If the return plenum, cabinet, or a flex joint has opened up – and West Hills’ dry air makes mastic seals crack over time – your Lennox air handler pulls unfiltered attic dust, insulation fibers, and wildfire ash straight into the blower and coil. The filter looks clean because the air is bypassing it. We find this on west-facing returns constantly after wind events. The fix is sealing the leaks, not buying a thicker filter. Call (855) 353-1653 for a free estimate on finding where your system is breathing attic air.
Most West Hills Lennox owners do best with a return-and-blower check after each major wind season, meaning fall and early winter, rather than waiting for the three-to-five-year interval that works in other Valley cities. The canyon-edge streets in 91307 load west-facing returns with grit before anything else in the house, so a seasonal check catches the ash and dust before it packs the blower wheel or fouls the evaporator coil. If your home sits farther east in 91307, the loading is lighter and a two-to-three-year interval may be enough. We’ll give you an honest read on your specific house. Call (855) 353-1653 and we’ll talk through what your system actually needs.
Service Areas Near West Hills
We serve West Hills and the surrounding west Valley communities, including Reseda, Granada Hills, and the neighborhoods along the 101 toward Woodland Hills. For Lennox owners just east, we also cover Lennox service in Lake View Terrace and Lennox service in North Hills, where the same dry-air flex joint and return dust issues show up in slightly different housing stock.
Book Your Lennox Service in West Hills Today
If your Lennox system is pulling canyon dust, short-cycling after wind events, or blowing weak through the registers, call us at (855) 353-1653 – we also handle Lennox repair in Porter Ranch. We’ll give you a straight diagnosis and a flat price per system before any work starts. Free estimates, no per-vent games, and before-and-after photos of your ductwork.
Written by Ray Lambert, Owner & Lead Duct Technician at Air Duct Cleaning Reseda, serving West Hills and the San Fernando Valley since 2011. “Clean ducts aren’t glamorous – but neither is breathing around what’s been sitting in them for a decade.”