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 Simi Valley, CA
We provide independent Lennox air duct cleaning across Simi Valley, CA, and the one thing that sets our Lennox work here apart is this: we clean the entire air path, not just the ducts. Simi Valley’s Santa Ana winds and wildfire smoke push fine ash through soffit vents into attics, and that ash collects in Lennox return plenums, blower wheels, and evaporator coils in ways most generalist duct cleaners never see. If you own a Lennox system in 93063, 93065, 93093, or 93094, call us at (855) 353-1653 for a free estimate.
Why Simi Valley Residents Choose Us for Lennox Service
We work on Lennox residential air handlers and ducted systems every week, so we know how these units are put together and where they typically fail. That’s the difference between a company that cleans ducts and one that understands the machine attached to them. Ray Lambert, our owner and lead technician, grew up in the San Fernando Valley and studied HVAC technology at Los Angeles Pierce College before focusing on duct cleaning and indoor air quality. The connection between clean ducts and how a family feels inside their house drives the work, and it’s why we carry commercial-grade equipment like Rotobrush rotary brush systems and Nikro HEPA-filtered vacuums into Simi Valley homes rather than consumer-level shop vacs. We are an independent service provider, not affiliated with or authorized by Lennox, and that independence means we diagnose honestly and clean thoroughly. For broader context on the Lennox work we do, see 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 Simi Valley
Here are the five issues we see most often on Lennox repair in Santa Susana and throughout this valley. Each one connects to how Simi Valley’s climate and housing stock work against your ducts.
- Blower wheels coated with sticky ash film. Lennox Signature Series variable-speed air handlers pull return air through a filter slot that, when neglected, deposits a sticky ash-and-dust film on the blower wheel. After a Santa Ana smoke event, that film hardens and throws the wheel out of balance, which is why some Lennox owners in Simi Valley hear a low rumble at startup. We pull the blower assembly, clean the wheel fins with a Nikro HEPA vacuum, and rebalance before reinstalling.
- Leaking return plenum joints on original rigid metal ductwork. Older Lennox G-series furnaces in east-valley tract homes were often paired with rigid metal ductwork that now has separated collars and leaky joints. Those gaps pull attic dust and smoke particulates directly into the return plenum, bypassing your filter. We seal them with duct mastic and foil tape before cleaning, because cleaning around a leak just invites the same problem back.
- Fouled evaporator coils on Elite and Merit indoor units. A Lennox evaporator coil sitting above a dirty return plenum collects fine ash along the curved lower edge of the coil face. This is where airflow drops first. We clean the coil with a HEPA-filtered air-washing system, not just a surface wipe, because the debris sits deep in the coil fins.
- Delaminated fiberglass insulation inside Merit Series air handlers. Lennox Merit Series air handlers often use fiberglass-lined internal insulation that breaks down with age and heat cycling. When that insulation delaminates, it releases fiberglass fibers and trapped debris into your supply duct stream. In Simi Valley’s dry heat, the breakdown accelerates. We remove loose insulation, clean the plenum, and advise on whether relining is worthwhile.
- Return-air plenums packed with Woolsey Fire ash in 93065. Homes in the 93065 ZIP regularly show return plenums loaded with fine grey ash from the 2018 Woolsey Fire blowback, even when the house sits miles from the burn zone. The valley’s wind pattern deposits particulates through soffit vents, and a Lennox return plenum becomes the collection point. This requires full negative-pressure containment during cleaning, which is why we run Abatement Technologies equipment on these jobs.
Lennox Service in Simi Valley: What Local Conditions Mean for Your Equipment
Simi Valley sits at the eastern edge of the Santa Monica Mountains, and the geography funnels seasonal Santa Ana winds straight through the valley floor. Those winds carry fine dust and, after fire seasons, smoke particulates that settle into attics through soffit vents. We’ve pulled return-air plenums apart in 93065 homes where the plenum held a half-inch of grey Woolsey ash, even though the house was miles from any burn zone. For Lennox owners specifically, this matters more than it would in a coastal city because your air handler is pulling that attic air through every gap in your return path. A home in Agoura Hills might see incidental dust; a Simi Valley home on the east side sees wind-driven smoke that works its way through soffit vents, into attic insulation, and then through whatever joints or collars have loosened over 40 years. That’s the distinction. That’s why we treat Simi Valley Lennox cleaning as a smoke-event remediation job, not routine maintenance. If you’re outside our immediate area, check our Simi Valley service area page to confirm coverage.
Lennox Models & Products We Service in Simi Valley
We service the full residential Lennox range: Signature Series variable-speed air handlers and SL-series indoor units, Elite Series EL gas furnaces, Merit Series ML air handlers and furnaces, and the older G-series furnaces still running in 1970s and 80s Simi Valley tract homes. When a part needs replacing, we use OEM Lennox filters, blower components, and gaskets where fit and performance matter, and quality aftermarket parts for standard duct and vent hardware. On older G-series equipment, we’re straightforward about whether cleaning is worthwhile or whether the system has reached the point where repair money is better directed toward replacement. We stock common Lennox filter sizes locally, so turnaround on a Simi Valley job – or Lennox in West Hills – isn’t delayed by a parts order.
See the difference
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After
Before
After
Before
AfterLennox Service Pricing in Simi Valley
A full Lennox air duct cleaning in Simi Valley typically runs $450 to $750 for the complete system, including return ducts, supply ducts, plenums, and the blower assembly. Evaporator coil cleaning, when done properly with access and coil cleaner, adds $150 to $300. Return duct cleaning alone on a Lennox system with accessible plenums runs $225 to $350. Zoned Lennox systems with multiple returns push toward the higher end of each range, because each zone adds plenum access time. Larger homes in the Simi Valley hills with long duct runs and multiple Lennox units will see higher quotes, while compact east-valley tract homes land on the lower side. The estimate is free, and you’ll know the full cost before we start. Call (855) 353-1653 for an exact quote.
What’s Included in a Lennox Full System Cleaning
- Return and supply duct cleaning with Rotobrush rotary brush agitation
- Return plenum and supply plenum vacuuming with Nikro HEPA filtration
- Blower wheel and blower housing cleaning
- Evaporator coil cleaning when accessible
- Registers and grilles wiped and reinstalled
- Leaking collars and joints sealed with mastic
- Before-and-after photos of the inside of your ducts
One flat price per system, agreed before work starts. No per-vent pricing, no bait-and-switch.
Serving Simi Valley, CA – Our Local Coverage Area
We’re based in the Simi Valley area and know this community well, including Porter Ranch. Use the map below to see our service coverage – if you’re nearby, we can almost certainly help.
FAQs – Lennox Air Duct Cleaning in Simi Valley
Within a few weeks of the smoke clearing. Ash and fine particulates settle into attics and return plenums quickly, and once they work into the blower wheel and evaporator coil, removal becomes more involved. Waiting months lets the ash compact and combine with normal dust into a crust that’s harder to remove. Call (855) 353-1653 and we’ll assess your system before the next Santa Ana event compounds the problem.
Because fine ash from the Woolsey blowback settled into your return plenum and duct insulation, and every time the blower spins up it redistributes trapped smoke particles through the supply registers. The smoke smell you’re noticing is not in the air handler itself; it’s in the ductwork and the plenum that connect to it. We’ve opened return plenums in 93065 homes that held ash five years after the fire. A full return-side cleaning with proper containment removes it, as we do with our Air Duct Cleaning in Simi Valley.
Yes. A Lennox Signatures Series variable-speed air handler relies on consistent return airflow to keep the blower within its designed operating range. When the return plenum or coil is blocked with ash and debris, the blower works harder and triggers high-temperature limit switches, which shuts the system down mid-cycle. Once we cleaned a 93065 homeowner’s plenum and coil, the short-cycling stopped immediately. Call (855) 353-1653 if your Lennox system is short-cycling or running hot.
That depends on the condition of the furnace and the duct joints. If the ductwork still holds pressure and the furnace is mechanically sound, cleaning is absolutely worthwhile because 40-plus years of Simi Valley dust and smoke are sitting in those ducts. But if the G-series furnace has cracked heat exchanger signs or the rigid ducts have more gaps than sealed joints, we’re honest about that. Cleaning can’t fix a failing furnace. We’ll give you our straight assessment and let you decide.
No. Duct cleaning addresses the ductwork, plenums, registers, and blower assembly. The evaporator coil sits above the furnace or air handler and requires separate access, often through a coil panel or plenum cutout. We clean Lennox coils as part of a full system job when access allows, but it’s a separate step with a separate line item. The coil is where the deepest airflow losses occur, so it’s worth doing at the same time.
Written by Ray Lambert, Owner at Air Duct Cleaning Reseda, serving Simi Valley and the San Fernando Valley since 2011.
Service Areas Near Simi Valley
Beyond Simi Valley, we cover the surrounding Ventura County and west San Fernando Valley communities including Oak Park, Agoura Hills, Reseda, Granada Hills, and West Hills. For Lennox-specific work in those areas, see Lennox service in Oak Park or Lennox service in Agoura Hills.
Book Your Lennox Service in Simi Valley Today
Clean ducts aren’t glamorous, but neither is breathing around what’s been sitting in them for a decade. If your Lennox system has run through Simi Valley’s smoke seasons without a cleaning, call (855) 353-1653 and we’ll get it done with the right equipment and a clear price.