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, CA | Hollis Air Duct Cleaning
We provide independent Air Duct Cleaning - Los Angeles for Lennox systems, and the thing that sets our work apart here is simple: this city’s housing stock changes block by block, and so do the Lennox systems inside it. A 1954 Valley ranch with a gravity furnace needs a different protocol than a Downtown high-rise air handler sharing return risers with six other units. Roy Castellanos and our crews have worked both, plus everything in between. Call (361) 326-5060 for a written estimate before any work starts.
Why Los Angeles Residents Choose Us for Lennox Service
We’ve cleaned Lennox ductwork since the days when Merit Series gas furnaces dominated mid-century tract home installs, and that depth shows in how we diagnose. Roy Castellanos grew up in Boyle Heights and trained through the sheet metal and air conditioning program at Los Angeles Trade-Technical College, then spent years doing hands-on duct work across Los Angeles County before starting Hollis Air Duct Cleaning. Our Lennox sales & service familiarity means we know which air-handler cabinets and coil boxes show up in Spanish bungalows in Echo Park versus what you’ll find in a Century City tower. We source genuine Lennox OEM parts for sealed-combustion and cabinet components, and high-grade aftermarket for plenum gaskets and flex connectors where it meets or exceeds spec. Every job gets a written price before we touch anything, and every job carries the 365-Day Done Right Promise in writing.
Common Lennox Air Duct Cleaning Problems We Solve in Los Angeles
These are the patterns we see repeatedly across Los Angeles, and each one is tied to how this city’s homes are built and how its air behaves.
- Cabinet-to-duct transitions pulling apart on older Lennox Merit furnaces. In unsealed attic chases, flex duct gets yanked when someone moves a box or runs new wiring, and the connection at the cabinet pulls loose. When Santa Ana winds push wildfire ash through the neighborhood, that gap becomes an intake point for soot straight into your return ducts. We seal these with mastic and verify the repair with video inspection.
- Variable-speed blowers on Elite Series air handlers ramping up static pressure. When filters clog with fine ash from the Palisades or Eaton Fires, the blower works harder, and cabinet gasket leaks start. In San Fernando Valley ranch homes, this often shows up as condensation on the outside of the ductwork. We clean the blower housing, replace the filters, and seal the cabinet.
- Asbestos-wrapped Lennox gravity furnaces in 1950s-60s Valley homes. This is a Los Angeles specific problem. Many original gravity furnace plenums still carry the original asbestos wrap. You cannot clean those ducts without disturbing the material, which requires abatement first. Our techs identify the condition and refer you to a licensed abatement contractor before we do any cleaning work.
- High-rise Lennox air handlers with shared return risers. In Downtown and Century City towers, a single Lennox unit often pulls return air through risers shared with neighboring units. We’ve found contaminated shared returns where one unit’s evaporator coil cleaning revealed building-wide soot accumulation. That requires coordination with building management, and we’ll document what we find to support that conversation.
- Flex duct degradation in central Los Angeles bungalows. Original 1920s and 1930s homes that were retrofitted with flex duct often have runs that are crushed, kinked, or torn. The dry LA climate accelerates the outer jacket breakdown. We replace damaged flex, seal all connections, and clean the remaining ductwork to the same standard.
Lennox Service in Los Angeles: What Local Conditions Mean for Your Equipment
Los Angeles’s housing diversity within a 10-mile radius is unlike anything you’ll find in a city with uniform building codes and single-era construction. Within a short drive, we move from 1900s Craftsman bungalows with no original ductwork at all, to 1950s Valley ranches with asbestos-wrapped Lennox gravity furnaces, to Downtown high-rises with engineered central air systems and shared risers. Our Lennox duct cleaning protocol changes block by block. A technician working a ranch home on Lankershim Boulevard deals with original plenums and mastic seals. A few miles south, the job might be a Lennox air handler in a glass tower where the return air comes from a riser shared with forty other units. No single protocol covers all of it, and our crews are trained to assess the system in front of them rather than apply a one-size-fits-all cleaning. This is why we send a uniformed, background-checked technician who knows what to look for in each era of Los Angeles housing.
Lennox Models & Products We Service in Los Angeles
We service the full range of Lennox residential equipment common to Los Angeles homes. That includes the Merit Series gas furnaces and air handlers, the Elite Series variable-speed air handlers, the Dave Lennox Signature Collection SL280V furnace, and the XC21 and XC25 air conditioners paired with ducted systems. For sealed-combustion and cabinet components, we use genuine Lennox OEM parts. For plenum gaskets, flex connectors, and mastic sealants, we use high-grade aftermarket parts that meet or exceed the original specification. We advise repair over replacement when the Lennox heat exchanger and cabinet are sound. Our focus on full system cleaning, return duct cleaning, and evaporator coil cleaning keeps the equipment you already have running the way it should.
Lennox Service Pricing in Los Angeles
Here’s what drives cost on a Lennox duct cleaning job in Los Angeles, and the ranges we typically see.
| Service | Typical Price Range in Los Angeles |
|---|---|
| Full system duct cleaning (single Lennox system, typical 2,000-3,500 sq ft home) | $450 – $800 |
| Return duct cleaning only | $175 – $300 |
| Evaporator coil cleaning (accessed through ductwork) | $250 – $450 |
| Flex duct replacement (per run, depends on length and access) | $150 – $400 per run |
| Asbestos wrap suspected – assessment only (no cleaning until abatement) | Free with a full system estimate |
What moves the price: attic access, how many returns feed the system, whether the flex duct needs replacing, and whether we’re dealing with a standard Lennox cabinet or an original gravity furnace setup. Every estimate is in writing before work starts, and that price does not move at the door. Call (361) 326-5060 for an exact quote on your Lennox system.
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
No, not until the asbestos has been removed by a licensed abatement contractor. We will not disturb that material, because doing so puts fibers into the air you breathe. In a 1954 ranch on Lankershim Boulevard, our tech found this exact setup and performed the cleaning only after the homeowner scheduled abatement, then sealed the Lennox cabinet-to-plenum transition with mastic. If you suspect asbestos, call us first. We’ll assess the system and give you a straight answer about what needs to happen before cleaning can begin.
Because ash and soot from fire events like the 2018 Woolsey Fire or the 2025 Palisades and Eaton Fires get pulled into your return ducts through gaps, tears, or loose fittings. This is why many customers pair our Dryer Vent Cleaning in Los Angeles with duct service after a fire. We saw this in Echo Park after the Woolsey Fire, where a Lennox Merit air handler was pulling ash through a torn flex return. We replaced the flex, cleaned the evaporator coil, and verified the result with video inspection. If you smell smoke, something is getting in. Call (361) 326-5060 and we’ll find where.
Yes. In a Downtown or Century City high-rise, the Lennox air handler is often connected to return risers shared with neighboring units. That changes the cleaning approach and sometimes reveals contamination coming from outside your unit entirely. We document what we find so you can take it to building management if the shared return needs attention. This is not a typical suburban house cleaning.
Routine evaporator coil cleaning does not void a Lennox warranty, but the coil needs to be accessed and cleaned without damaging the fins or the drain pan. We use the right tools and document the work. We’re an independent service provider, not manufacturer-affiliated or authorized, which means we answer to you, not to a warranty department. If a component is under warranty and needs factory replacement, we’ll tell you that plainly and help you file the claim.
For most Los Angeles homes, every 3 to 5 years is reasonable. LA’s mild, dry climate means less dust accumulation than you’d see in Houston or a cold-climate city, but wildfire seasons can spike that timeline. After a major fire event that blankets your neighborhood in ash, get the system checked. If you’re near a burn zone or smell smoke in the return air, schedule an assessment sooner. Call (361) 326-5060 and we’ll give you a straight answer on what your Lennox system actually needs.
Service Areas Near Los Angeles
We serve the full Los Angeles service area, from the San Fernando Valley to Downtown and out to the Westside. Our crews also handle Lennox duct work in surrounding communities. For reference on how different housing stock changes the job, see our Lennox service in Brooklyn and Lennox service in Houston pages. Different cities, different duct realities.
Book Your Lennox Service in Los Angeles Today
Clean ducts, straight answers – that’s the whole job. Call (361) 326-5060 and we’ll get a written estimate to you on your Lennox system in Los Angeles. Every price in writing, every job covered by the 365-Day Done Right Promise.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Los Angeles since 2004.