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 Mission Hills, CA
We provide our Air Duct Cleaning in Mission Hills independently, and the one thing that separates our work here is simple: a lot of properties in this city run two Lennox systems, not one. The north-side horse lots with converted garages and casitas routinely have a second air handler that never gets touched, and it back-feeds dust and rodent debris into the main return. Call (855) 353-1653 for a free estimate on any Lennox system in Mission Hills, from the house to the detached structure.

We’re not a Lennox dealer, and we’re not manufacturer-authorized. We’re an independent duct cleaning company that services Lennox equipment weekly across the 91345, 91346, and 91395 ZIP codes. That independence matters because we diagnose what’s actually in your ductwork, not what a manufacturer script says should be there. For Lennox sales & service, we focus on the air side: cleaning, sealing, and repairing the ducts that carry what your Lennox unit moves.
Why Mission Hills Residents Choose Us for Lennox Service
Ray Lambert, our owner and lead duct technician, grew up two blocks from Reseda Park and has spent his adult life working on HVAC systems across the same San Fernando Valley neighborhoods he was raised in. He studied HVAC technology at Los Angeles Pierce College in Woodland Hills before narrowing his focus to duct cleaning and indoor air quality. That background matters when we open a Lennox cabinet in Mission Hills and find a return plenum that’s been pulling canyon dust past a dried-out gasket.
We run commercial-grade equipment in residential homes: Rotobrush rotary brush systems for dislodging compacted debris, Nikro HEPA-filtered vacuums for extraction, and Abatement Technologies containment so dust doesn’t migrate into living space while we work. Most generalist HVAC outfits don’t carry this gear. We do, and we use it on every Mission Hills job, whether it’s a mid-century tract home off Sepulveda or a horse property on the north side.
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 Mission Hills
Lennox builds reliable equipment, but the ductwork around it ages differently in this climate. Here’s what we find in Mission Hills service area homes:
- Return-air plenum gaskets leaking on Merit and Elite furnaces. Mission Hills sits in the dry San Fernando Valley heat. The gaskets at the filter cabinet and return plenum on Merit and Elite series Lennox furnaces dry out and crack here faster than coastal cities. Once they fail, Santa Ana dust and ash slip straight past the filter and coat the blower wheel and evaporator coil. We replace the gaskets with OEM parts and clean downstream.
- Signature Series air handlers caking fine dust on the coil. Variable-capacity Lennox air handlers run at low airflow for long stretches. That’s efficient, but it means fine dust settles on the coil face instead of blowing through. After a hot, dry summer in Mission Hills, we see coil faces coated with a layer of fine particulate that short-cycles cooling and drags efficiency down.
- Undersized flex duct on retrofitted additions. Mission Hills has plenty of add-on room conversions and extended ranch homes. The flex duct transitions and takeoffs on those retrofitted Lennox systems are often undersized and unsealed. The unit starves for return air, so it pulls from wherever it can, including shared attic space with rodent activity.
- Cracked mastic at the cabinet-to-plenum joint. The dry Valley heat bakes mastic brittle. When it cracks at the Lennox cabinet-to-plenum joint, conditioned air and dust dump into crawlspaces and attic voids. We reseal with quality aftermarket mastic rated for this climate.
- Forgotten second systems on horse-zoned lots. This is the Mission Hills signature problem. A north-side horse property will have a main Lennox furnace in the house and a second air handler in a converted garage or casita. The second one never gets serviced. Its return fills with dust and debris, and because it shares attic space with the main house, it back-feeds contamination into the primary return. We find and clean both.
Lennox Service in Mission Hills: What Local Conditions Mean for Your Equipment
Mission Hills isn’t a single-system suburb, and treating it like one is how Lennox repair in North Hills style duct jobs go wrong here. The north side of the city, particularly the horse-zoned lots off the Sepulveda-side tract edge, is built on larger parcels with detached garages, guest houses, and add-on room conversions. Many of those structures got their own Lennox system at some point: a Merit furnace in the main house, an air handler in the casita. The casita’s return pulls canyon dust and rodent debris, and because the structures share attic space, that contamination migrates straight into the main return path. You clean the house’s ducts, the casita’s dust keeps feeding back in, and three months later the client thinks the cleaning failed.
On one Lennox service in North Hills East style north-side Mission Hills horse property, our crew found exactly this: two Lennox systems, one main Merit furnace and a forgotten air handler in the converted casita. The casita’s return was packed with rodent debris and dust, and video inspection showed it feeding into the main return. We pulled and cleaned both systems, sealed the cracked plenum mastic, and re-established separate returns so the house stopped breathing the casita’s dust. A real Mission Hills duct cleaning means finding every system on the property, not just the one the thermostat controls. Clean ducts aren’t glamorous, but neither is breathing around what’s been sitting in them for a decade.
Lennox Models & Products We Service in Mission Hills
We work on the full residential Lennox lineup in Mission Hills: Merit Series gas furnaces and air handlers (ML/MB series), Elite Series furnaces and condensers (EL series), Signature Collection variable-capacity systems (SL/SLP), and Dave Lennox Signature Collection communicating systems running iComfort thermostats. For the air handler, we use OEM Lennox filters, gaskets, and cabinet components where fit matters. For flex duct, mastic, and insulation, we use quality aftermarket materials that perform equal or better for less. On older Lennox equipment we give you an honest read: if the cabinet and coil are sound, cleaning and sealing is worth it. If the heat exchanger or coil is failing, we tell you that before we sell a duct job on a dying system.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Mission Hills
Whole-system Lennox duct cleaning in Mission Hills typically runs $400 to $1,100 depending on the property. A mid-century tract home off Sepulveda with one system and eight to ten vents sits at the lower end. A north-side horse property with two Lennox systems, a converted garage, and extended duct runs sits at the higher end. Return duct cleaning adds $90 to $160. Duct sealing runs $500 to $1,200 depending on how much mastic and flex replacement the system needs. What drives cost in Mission Hills is the number of systems and the amount of debris from equestrian-adjacent lots and Santa Ana events, not a per-vent upsell. You get one flat price per system agreed before work starts, and photos of your own ducts before and after. Call (855) 353-1653 for an exact quote. Estimates are free.
Serving Mission Hills, CA – Our Local Coverage Area
We’re based in the Mission Hills 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 Mission Hills
No, and we don’t claim to be. Air Duct Cleaning Reseda is an independent duct cleaning and repair company serving Mission Hills. We’re not manufacturer-affiliated or authorized by Lennox. What we are is experienced: we open Lennox cabinets in this city every week and know how their Merit, Elite, and Signature series systems shed dust and load returns. Independence means we diagnose your actual ductwork, not a manufacturer service script.
Yes, where fit and function depend on it. For Lennox air handler gaskets, filters, and cabinet components, we use OEM parts because tolerances matter. For flex duct, mastic, and insulation, we use quality aftermarket materials that hold up better in Mission Hills dry heat than some OEM equivalents and cost less. We’ll show you what’s going in and why before we start.
A single-system home takes about three to five hours. A Lennox repair in North Hills West style north-side property with two Lennox systems, a converted garage, and extended runs can take a full day or split across two visits. The variable in Mission Hills is the second system. We won’t rush a two-system property into a single afternoon and leave the casita’s dust feeding your main return. Call (855) 353-1653 and we’ll give you a realistic time estimate for your property.
We service Merit Series ML/MB furnaces and air handlers, Elite Series EL equipment, Signature Collection SL/SLP variable-capacity systems, and Dave Lennox Signature Collection communicating setups with iComfort thermostats. If your Mission Hills home runs a Lennox system we haven’t mentioned, call us. The duct cleaning and sealing work is the same discipline; the cabinet layouts just change.
Within two to four weeks if you’re on a canyon-edge or horse-adjacent lot in Mission Hills. Santa Ana events push fine dust, pollen, and ash directly into return-air intakes, and Lennox Signature variable-capacity systems running at low airflow let that material settle and cake on the coil face rather than blow through. Check your filter first; if it’s gray or brown after two weeks, the ducts are holding the same load. Call (855) 353-1653 for an inspection and we’ll tell you what actually needs cleaning versus what can wait.
Service Areas Near Mission Hills
We serve Mission Hills and the surrounding San Fernando Valley communities, including Reseda, Granada Hills, West Hills, Simi Valley, and Agoura Hills. For Lennox owners in bordering areas, we also provide Lennox service in Porter Ranch and Lennox service in Granada Hills North. If your property runs multiple Lennox systems across detached structures, we’re the crew that finds every one of them.
Book Your Lennox Service in Mission Hills Today
Call (855) 353-1653 for a free estimate on Lennox air duct cleaning anywhere in Mission Hills. We’ll ask about your systems, your lot, and when you last saw a Santa Ana event push dust through your returns. Then we’ll give you one flat price per system before work starts. No per-vent pricing, no bait-and-switch.
Written by Ray Lambert, Owner at Air Duct Cleaning Reseda, serving Mission Hills and the San Fernando Valley.